Rj逢挨pi"rjƒr vector không gian 8k隠w"mjk吋p"e»pi"uw医v"vƒe"f映pi x "e»pi"uw医v" rj違p"mjƒpi"vtqpi"j羽"vj嘘pi"FHKI"d茨pi"eƒej"8k隠w"ej雨pj"eƒe"vj pj"rj亥p"f”pi"tqvqt vtqpi"j羽"v丑c"8瓜"vt映e"xw»pi"i„e0"J衣p"ej院"ej pj"e栄c"8鵜pj"j逢噂pi"v瑛"vj»pi"uvcvqt"n " 8k隠w"mjk吋p"rj映"vjw瓜e"x q"8瓜"ej pj"zƒe"e栄c"xk羽e"8q"x鵜"vt "xgevqt"v瑛"vj»pi"uvcvqt0"X·" x壱{."荏"8¤{"vc"u穎"f映pi"mjwpi"vjco"ejk院w"8k羽p"ƒr"uvcvqt"8吋"o»"j·pj"j„c"x "8k隠w"mjk吋p" j羽"vj嘘pi DFIG.
Vtqpi"eƒe"rj逢挨pi"rjƒr"8k隠w"mjk吋p"f”pị"8k隠w"ej雨pj"RK"f́pi"ejq" x壱p"j pj" vw{院p"v pj"e栄c"FHKI0"Vw{"pjk‒p. ikƒ"vt鵜 jk羽w"ej雨pj"PI p {"mj»pi"8違o"d違q"v亥o"x壱p" j pj"t瓜pi"e栄c"j羽"vj嘘pi"FHKI [39]0"X·"x壱{."8k隠w"mjk吋p"f”pi"x "eƒe"vj»pi"u嘘"8k隠w" mjk吋p"e栄c"p„"rj違k"8逢嬰e"jk羽w"ej雨pj"e育p"vj壱p"8吋"fw{"vt·"v pj"鰻p"8鵜pj"e栄c"j羽"vj嘘pi" vtqpi"v亥o"x壱p"j pj"jc{"8衣v"8逢嬰e"8ƒr"泳pi"8瓜pi"e亥p"vjk院v"e違"vt衣pi"vjƒk"zƒe"n壱r"x " 8k隠w"mk羽p"swƒ"8瓜0
Vtqpi" rj逢挨pi" rjƒr"vector không gian." f”pi" tc" e栄c" TUK" dƒo" vjgq" v p" jk羽w" f”pi"n羽pj"vj»pi"swc"8k隠w"ej雨pj"8k羽p"ƒr"tc"e栄c"TUK (rotor side inverter)0"Ak隠w"p {" làm cho RSI ba rjc"n o"xk羽e"pj逢"piw欝p"f”pi"e„"8k隠w"mjk吋p0" O衣ej"v逢挨pi"8逢挨pi" e栄c" FHKI" x噂k" mk吋w" 8k隠w" mjk吋p" TEE" *Ramp comparasion current controller) 8逢嬰e" cho trong hình 3.1c."x噂k"mk吋w"8k隠w"mjk吋p"UXDJEE (Space vector-based hysteresis current controller) 8逢嬰e" ejq" vtqpi" j·pj" 503d0" FHKI" 8逢嬰e" o»" j·pj" vtqpi" UXTH (stator voltage reference frame) và SVBHCC (space vector-based hysteresis current controller) 8逢嬰e"f́pi"8吋"8k隠w"ej雨pj"xgevqt"f”pi"TUK0"Vtqpi"vt衣pi"vjƒk"zƒe"n壱r."v亥p" u嘘"8„pi"e逸v"e栄c"TUK"8逢嬰e"ik違o"x "e詠e"vk吋w"fcq"8瓜pi"f”pi"v違k [39].
33
Hình 303"U挨"8欝"v逢挨pi"8逢挨pi"e栄c"DFIG x噂k
(a) Ramp comparison current controller (b) Space vector-based hysteresis current controller (SVBHCC). [39]
F詠c"x q"j·nh 3.1. b, vector v瑛"vj»pi"uvcvqt"x "8k羽p"ƒr stator trong khung tham ejk院w"swc{"e„"dk吋w"vj泳e"pj逢"ucw<
(3.1)
(3.2)
Vtqpi"8„, 奄s n "v瑛"vj»pi"uvcvqt"]Yd̲."Xsn "8k羽p"ƒr"uvcvqt"]X̲. Is n "f”pi"8k羽p" stator [A], Ir n "f”pi"8k羽p"tqvqt [A], Rs là 8k羽p"vt荏"tqvqt"]µ̲."Nmn "8k羽p"e違o"v瑛"j„c" [H], Ls n "8k羽p"e違o"uvcvqt"]J̲"x噂k" Ls = Lm + Lju, "n "v嘘e"8瓜"e栄c"mjwpi"vjco"ejk院w" quay [rad/s]. V瑛"*3.1) ta có:
34
(3.3) F́pi" mjwpi" vjco" ejk院w" 8鵜pj" j逢噂pi" 8k羽p" ƒr" uvcvqt." vj pj" rj亥p" vt映e" f" e栄c" khung tham chi院w"i逸p"x噂k"xgevqt"8k羽p"ƒr"uvcvqt"*Xs = Vsd) x "swc{"pi逢嬰e"ejk隠w"mko" 8欝pi"j欝"x噂k"x壱p"v嘘e"8欝pi"d瓜" s* ? s). O嘘k"swcp"j羽"xgevqt"mj»pi"ikcp"ik英c"mjwpi" vjco" ejk院w" e嘘" 8鵜pj" *g- +." mjwpi" vjco" ejk院w" swc{" tqvqt" x噂k" v嘘e" 8瓜" r (x-y), và mjwpi"vjco"ejk院w"8k羽p"ƒr"uvcvqt"x噂k"v嘘e"8瓜" s (d-q) 8逢嬰e"ejq"vtqpi"j·pj"502.
Hình 304"Dk吋w"fk宇p"xgevqt"e栄c"j羽"vj嘘pi"FHKI"vtqpi"UXTH (stator voltage reference frame).
Rjfir"dk院p"8鰻k"ik英c"eƒe"mjwpi"vjco"ejk院w"UTH"*stationary reference frame, g- +."TTH"*rotor reference frame, x-y) và SVRF (stator voltage reference frame, d-q) 8逢嬰e"ejq"pj逢"ucw<
(3.4)
(3.5)
Vtqpi"8„"H"n "xgevqt"f”pi"8k羽p."8k羽p"ƒr"jc{"v瑛"vj»pi"0"E»pi"uw医v"vƒe"f映pi và e»pi"uw医v"rj違p"mjƒpi"uvcvqt"8逢嬰e"v pj"pj逢"ucw<
35
(3.6)
Vtqpi"8„."̀"n "f医w rj泳e nk‒p"j嬰r, Ps n "e»pi"uw医v"vƒe"f映pi"uvcvqt"]Y̲."Ss là e»pi"uw医v"rj違p"mjƒpi"uvcvqt"]Xct̲0. X·"8k羽p"ƒr"uvcvqt"n "j茨pi"u嘘"vtqpi"j羽"sw{"ejk院w" UXTH."ffs1fv"?"20"D臼"swc"T"vtqpi"*3.2+"vc"8逢嬰e"fs = Vs1"*l s), thay (3.3) vào (3.6) vc"8逢嬰e<
(3.7)
(3.8) Troni"8„"Xsd n "8k羽p"ƒr"vt映e"f"uvcvqt."Krd n "f”pi"8k羽p"vt映e"f"uvcvqt"]C̲."Krq là f”pi"8k羽p"vt映e"s"uvcvqt"]C̲." sn "x壱p"v嘘e"i„e"8k羽p"uvcvqt [rad/s].
V瑛"*3.7) (3.8+."vc"vj医{"e»pi"uw医v"vƒe"f映pi x "e»pi"uw医v"rj違p"mjƒpi"uvcvqt"e„" vj吋"8k隠w"mjk吋p"8瓜e"n壱r"x噂k"pjcw"d茨pi"eƒej"8k隠w"ej雨pj"Krd và Irqtk‒pi"dk羽v"x噂k"pjcw0"
504"Ak隠w"mjk吋p"TUK"d茨pi"RYO<
Rj逢挨pi"rjƒr"8k隠w"mjk吋p"TUK"d茨pi"RYO"8逢嬰e"nw壱p"x<p"o»"rj臼pi"n衣k"8吋"uq" uƒpj"x噂k"pj英pi"rj逢挨pi"rjƒr"8k隠w"mjk吋p"mjƒe"8逢嬰e"8隠"e壱r"d‒p"f逢噂k. U挨"8欝"mj嘘k"e栄c" rj逢挨pi"rjƒr"p {"8逢嬰e cho trong hình 3.3 và 3.4.
36
Hình 3.3 U挨"8欝"8k隠w"mjk吋p"FHKI"d茨pi"RYO
Trong hình 3.3."8k羽p"ƒr"x "f”pi"8k羽p"dc"rjc"uvcvqt"8逢嬰e"8q"x "ejw{吋p"8鰻k"ucpi" j羽"v丑c"8瓜"g 0"Ikƒ"vt鵜"Xg "x "Kg "8逢嬰e"e医r"x q"mj嘘k"Rụ"Su"ecnewncvkqp"8吋"v pj"e»pi" uw医v"vƒe"f映pi và công su医vrj違p"mjƒpi"uvcvqt"Rụ"Su"vjgq"e»pi"vj泳e"ucw<
Ps = (3/2).( Vgu. igu + V u i u) (3.9)
Qs = (3/2).( Vgu. i u - V u igu) (3.10) Eƒe"ikƒ"vt鵜"Rs, Qs." sl."e»pi"uw医v"vƒe"f映pi stator n羽pj"Rs,."e»pi"uw医v"rj違p"mjƒpi stator n羽pj"Ss* và dòng ba pha rotor Ir3在8逢嬰e"e医r"x q"mj嘘k"Eqpvtqnngt"8吋"v·o"tc"n羽pj" 8„pi"pi逸v"ejq"eƒe"mj„c"e栄c"eqpxgtvgt"p嘘k"ik英c"v映"8k羽p"x "tqvqt0""
U挨"8欝"d‒p"vtqpi"mj嘘k"Eqpvtqnngt"8逢嬰e"ejq"vtqpi"j·pj"5060 Trong hình 3.4 giá vt鵜"e栄c"Rs, Qs8逢嬰e"uq"uƒpj"x噂k"ikƒ"vt鵜"n羽pj"Rs*, Qs,0"Uck"u嘘"e栄c"jck"ikƒ"vt鵜 này sau khi ejq"swc"mj嘘k"RKvj·"pj壱p"8逢嬰e"f”pi"tqvqt"n羽pj theo truc d và q idr*, iqr,0"V瑛"f”pi"ba
37
pha rotor 8q"8逢嬰e, iabcr ejw{吋p"ucpi"j羽"sw{"ejk院w"g ."t欝k"ucpi"fs0"Ikƒ"vt鵜"kdr, iqr n衣k" 8逢嬰e"uq"uƒpj"x噂k dòng rotor lênh idr* và iqr* *8«"v pj"8逢嬰e"荏"vt‒p+ t欝k"swc"mj嘘k"RK. O厩k"8亥w"tc"e栄c"RK"8逢嬰e"e瓜pi"x噂k"o瓜v"ikƒ"vt鵜"8逢嬰e"v pj"v瑛"hai rj逢挨pi"vt·pj"ucw<
(3.11)
(3.12)
Ikƒ"vt鵜"pj壱p"8逢嬰e"u胤"8逢嬰e"ejw{吋p"ucpi"j羽"v丑c"8瓜"cphc-dgvc"t欝k"ucpi"j羽"v丑c"8瓜" a,b,c vt荏"vj pj"8k羽p"ƒr"n羽pj"dc pha rotor Var*, Vbr*, Vcr*0"Ew嘘k"épi"Xar
*
, Vbr*, Vcr* swc"mj嘘k"RYO"8吋"v pj"vqƒp"8„pi"pi逸v"ejq"eƒe"mj„c"e栄c"TUK0
Hình 3.4 U挨"8欝"d‒p"vtqpi"mj嘘k"Eqpvtqnngt (PWM)
3.3 Ak隠w" mjk吋p" f”pi rotor side inverter (RSI) f́pi" xgev挨" mj»pi" ikcp" ejq" DFIG:
O映e"p {"u胤"vt·pj"d {"x隠 rj逢挨pi"rjƒr"8k隠w"mjk吋p"TUK"f́pi SVBHCC ( Space vector based hysteresis current controller) trong [39]0"Mk吋w"8k隠w"mjk吋p"p {"e pi"e„ 8ƒr"泳pi"swƒ"8瓜"v嘘v"uq"x噂k"rj逢挨pi"rjƒr"j{uvgtguku"vtw{隠p"vj嘘pi0"V衣k"vt衣pi"vjƒk"zƒe" n壱r"vj·"UXDJEE v嘘v"j挨p"x·"ik違o"v亥p"u嘘"8„pi"e逸v"RUK"x "e詠e"vk吋w"fcq"8瓜pi"xgevqt" f”pi"v違k"]39].
U挨"8欝"e栄c"TUK"5"rjc"8逢嬰e"jk吋p"vj鵜"vtqpi"J·pj"3.50c0"V衣k"o厩k"vj運k"8k吋o"xgevqt" mj»pi"ikcp"8k羽p"ƒr"tc"e栄c"TUK"*Xn+"8逢嬰e"zƒe"8鵜pj"f詠c"x q"vt衣pi"vjƒk"f磯p"e栄c"eƒe"
38
ej¤p"kpxgtvgt0"P院w"mj„c"vt‒p"e栄c"rjc"C"*U1+"f磯p"f”pi"vj·"Ua* ?"3."pi逢嬰e"n衣k"vj·"d茨pi" 2."rjc"d"x "e"e pi"pj逢"x壱{0"V瑛"8„"vc"e„":"xgevqt"mj»pi"ikcp"8k羽p"ƒr"tc"8逢嬰e"8鵜pj" pij c"pj逢"ucw [39]:
Vn = Vdc[(2 Sa* - 1) + ạ (2 Sb* - 1) + a2. (2 Sc* - 1)]/3 (3.13) Vtqpi"8„"c = gzr*l4ヾ15+0"V瑛"8„"xgevqt"mj»pi"ikcp"8k羽p"ƒr"tc"e栄c"TUK"dcq"i欝o" 6 vector không gian khác 0 (V1-V6+"x "4"xgevqt"mj»pi"ikcp"d茨pi"2"*X00, V01+"pj逢" trong Hình 3.5b.
Hình 3.5 c0"U挨"8欝"8挨p"ik違p"e栄c rotor side inverter (RSI) d0Xgev挨"mj»pi"ikcp"e栄c"8k羽p"ƒr"tc"TUK [39]
U挨"8欝"8k隠w"mjk吋p"TUK"8逢嬰e"ejq"vtqpi"J·pj"3.60"A亥w"vk‒p"8k羽p"ƒr"dc"rjc"uvcvqt"" (Vs-5f+"8逢嬰e"8q"x "ejw{吋p"8鰻k"vj pj"j羽"sw{"ejk院w"UTH Vsg (stationary reference frame) u穎"f映pi"rjfir"dk院p"8鰻k"Enctm0"Xgevqt"8k羽p"ƒr"Xsg 8逢嬰e"f磯p"x q"RNN"8吋"pj壱p" 8逢嬰e" s e亥p"ejq"j羽"sw{"ejk院w"UXTH (stator voltage reference frame). Vector không gian Vsg ucw"8„"8逢嬰e"ejw{吋p"8鰻k"vj pj"j羽"sw{"ejk院w"UXTH"*Xsdq+"d茨pi"eƒej"u穎" f映pi"*3.4). V瑛"e»pi"uw医v"vƒe"f映pi uvcvqt"n羽pj"Rs,."e»pi"uw医v"rj違p"mjƒpi"uvcvqt"n羽pj" Qs* và Vsdq v pj"8逢嬰e f”pi"8k羽p"tqvqt"n羽pj"vtqpi"j羽"v丑c"8瓜"fsq, Ir*dq d茨pi"rj逢挨pi" trình 3.7 và 3.8. Vk院r"vjgq"vc"ejw{吋p"f”pi rotor vjco"ejk院w"8«"v pj"vqƒp 8逢嬰e (Ir*dq) vtqpi" j羽" sw{" ejk院w" UXTH vj pj" j羽" sw{" ejk院w" TTH (rotor reference frame) d茨pi"
39
eƒej"u穎"f映pi"rj逢挨pi"vt·pj"3.50"Eƒe"ikƒ"vt鵜 v pj"vqƒp"x "8q"8逢嬰e"p {"8逢嬰e"e医r"ejq" SVBHCC (Space vector based hysteresis current controller) 8吋" v pj" vqƒp" v p" jk羽w" 8„pi"e逸v"ejq"eƒe"eqp"KIDV0
Hình 3.6 U挨"8欝"8k隠w"mjk吋p"TUK dùng 3-level hysteresis [39].
U挨" 8欝" e栄c" UXDJEE" 8逢嬰e" vj吋" jk羽p" vtqpi" J·pj"3.7, ikƒ" vt鵜" f”pi rotor vj詠e vtqpi" j羽" v丑c" 8瓜" TTH" *tqvqt" tghgtgpeg" htcog+ 8逢嬰e" uq" uƒpj" x噂k" ikƒ" vt鵜" f”pi rotor vjco"ejk院w vtqpi"j羽"v丑c"8瓜"TTH8«"8逢嬰e"v pj"vqƒp 荏"vt‒p0"Uck"u嘘"ik英c"ej¿pi"*gx và ey+"8逢嬰e"e医r"ejq"d瓜"uq"uƒpj"j{uvgtguku"5"d壱e"0"Xgevqt"mj»pi"ikcp"8k羽pƒr"tc"e栄c"TUK" (Vn+"8逢嬰e"v pj"f詠c"x q"8亥w"tc"e栄c"d瓜"uq"uƒpj"j{uvgtguku"*Fx và Dy+"x "d違pi"8„pi"e逸v" 8逢嬰e"ejq"vtqpi"D違pi"3.30"V亥p"u嘘"8„pi"e逸v"8逢嬰e"ik違o"pj運"u穎"f映pi"xgevqt"mj»pi" ikcp"8k羽p"ƒr"¦gtq [39]0"Fcq"8瓜pi"e栄c"xgevqt"f”pi"tc"e pi"8逢嬰e"ik違o"d荏k"x·"8k隠w" khk吋p"f”pi"vtqpi"j羽"sw{"ejk院w"TTH [39].
40
Hình 3.7 U挨"8欝"e栄c"UXDJEE [39].
Hình 3.8 U挨"8欝"e栄c"d瓜"uq"uƒpj"j{uvgtguku"5"d壱e [39].
41
3.4 Ak隠w"mjk吋p"f”pi"TUK"f́pi 3-level hysteresis + PI cho DFIG:
Ngoài hai rj逢挨pi"rjƒr"8k隠w"mjk吋p"d茨pi PWM và 3-ngxgn"j{uvgtguku"m院v"j嬰r" xgev挨"mj»pi"ikcp"pj逢"o映e"3.2 và 3.3."nw壱p"x<p"e”p"o»"rj臼pi"thêo"rj逢挨pi"rjƒr" khác n "8k隠w"mjk吋p"d茨pi"5-level hysteresis + PỊ
U挨"8欝"e栄c""mk吋w8k隠w"mjk吋pp {"8逢嬰e"ejq"vtqpi"j·pj"3.3 và 3.9. Rj亥p"ik違k"vj eh e栄c"j·pj"505"8«"8逢嬰e"vt·pj"d {"荏"vt‒p0"J·pj"50;"ej pj"n "u挨"8欝"mj嘘k"d‒p"vtqpi"e栄c" mj嘘k"eqpvtqnngt"e栄c"j·pj"505"vjgq"mk吋w"8k隠w"mjk吋p"5-level hysteresis + PỊ
Hình 3.9 U挨"8欝"d‒p"vtqpi"mj嘘k"Eqpvtqnngt (3-level hysteresis + PI)
Trong hình 3.9, sck"u嘘"ik英c"e»pi"uw医v"vƒe"f映pi uvcvqt"x噂k"e»pi"uw医v"vƒe"f映pi stator n羽pj."e»pi"uw医v"rj違p"mjƒpi"uvcvqt"x噂k e»pi"uw医v"rj違p"mjƒpi stator n羽pj"8逢嬰e" ejq"swc"mj嘘k"RK"8吋"v pj"f”pi"tqvqt"n羽pj"vjgq"vtqpi"j羽"v丑c"8瓜"fsq0"F”pi"tqvqt"n羽pj" vtqpi"j羽"v丑c"8瓜"fsq"ucw"8„"épi"x噂k"i„e" slejw{吋p"vj pj"f”pi"tqvqt"vtqpi"j羽"v丑c"8瓜" anfa-beta, t欝k" uq" uƒpj" x噂k" f”pi" tqvqt" 8q" 8逢嬰e" 8吋" n医{" uck" u嘘0" V瑛" uck" u嘘" p {." d瓜" j{uvgtguku"5"d壱e"u胤"v pj"tc"Fz"x "F{"e„"ikƒ"vt鵜"n "2."3."40"永pi"x噂k"o厩k"e員r"ikƒ"vt鵜"Fz." F{"u胤"e„"o瓜v"xgev挨v逢挨pi"泳pi"ejq"vtqpi"d違pi"3.1. V瑛"xgev挨"p {"vc"u胤"pj壱p"8逢嬰e"ikƒ" vt鵜"8„pi"e逸v"e栄c"eƒe"mj„c"Ua*, Sb*, Sc*.
42
EJ姶愛PI 4: Oð"RJ碓PI"AK陰W"MJK韻P"Oè["RJèV" AK烏P"IKï MJðPI"A唄PI"D浦"PIW唄P"M¡R"D稲PI
MATLAB/SIMULINK
4.1O»"rj臼pi"FHKI<
O»"j·pj"o»"rj臼pi"vq p"d瓜"j羽"vj嘘pi"FHKI d茨pi"Ocvncd1Ukownkpm cho trong hình 3.1. Vj»pi"u嘘"e栄c"oƒ{"rjƒv"FHKI"405"OY"8逢嬰e"ejq"vtqpi"d違pi"503.
Ikƒ"vt鵜8員v"ejq"e»pi"uw医v"vƒe"f映pi n羽pj"n <
Vj運k"ikcp: [0 4.5 4.5 10] (s)
E»pi"uw医v"vƒe"f映pi<" [1.1e6 1.1e6 2.1e6 2.1e6] (W)
Ikƒ"vt鵜"8員v"ejq"e»pi"uw医v"rj違p"mjƒpi"n羽pj"n <
Vj運k"ikcp: [0 4.5 4.5 10] (s)
E»pi"uw医v"rj違p"mjƒpi: [0.4e6 0.4e6 0 0] (Var)
V嘘e"8瓜"ik„"vjgq"vj運k"ikcp< Vj運k"ikcp: [0 1 2 4 6 8 10] (s) V嘘e"8瓜"ik„: [16 13.5 14 16 16 14.8 15] (m/s) Vj»pi"u嘘"vwtdkpg"ik„"FHKIa405OY< -"V雨"u嘘"j瓜r"Ỉ:20 -"Dƒp"m pj"eƒpj"sw衣v"ik„"T"?"62o0
Ejq" 8瓜pi" e挨" ej衣{" x噂k" 8k羽p" ƒr" uvcvqt" " 8鵜pj" o泳e" ;82X." v嘘e" 8瓜" n羽pj" 3:22" x”pi1rj¿v."8k羽p"ƒr"v映"Xfe"n羽pj"3865X0
43
J·pj"5030"U挨"8欝o»"rj臼pi"FHKF"p嘘k"n逢噂k D違pi"503"Vj»pi"u嘘"máy phát DFIG-2.3MW
Ak羽p"vt荏"uvcvqt"- Tu"*µ+ 0.004 Ak羽p"vt荏"tqvqt"- Tt"*µ+ 0.004 Ak羽p"e違o"uvcvqt"- Ls (mH) 0.159 Ak羽p"e違o"tqvqt"- Lr (mH) 0.159 Ak羽p"e違o"v瑛"j„c"- Lm (mH) 5.09 U嘘"e員r"e詠e"- p 2 Ak羽p"ƒr"uvcvqt"(V)/V亥p"u嘘 (Hz) 960/50 Moment quán tính - J (kg.m2) 93.22
44
Hình 3.2<"V嘘e"8瓜"ik„"*o1ư"vtqpivj運k"ikcp"o»"rj臼pi (10s).
4.2M院v" sw違" o»" rj臼pi" j羽" vj嘘pi" FHKI" 8k隠w" mjk吋p" TUK (rotor side inverter) d茨pi"RYO<
O»" j·pj" o»" rj臼pi" d瓜" 8k隠w" mjk吋p" TUK d茨pi" RYO" vtqpi" Oatlab/Simulink
8逢嬰e"ejq"vtqpi"j·pj 3.3. Eƒe"m院v"sw違"o»"rj臼pi"e栄c"e»pi"uw医v"vƒe"f映pi stator, công
uw医v"rj違p"mjƒpi"uvcvqt , dòng ba pha stator , dòng ba pha rotor , v嘘e"8瓜"tqvqt."8k羽p"ƒr
pha a rotor, u嘘" n亥p" 8„pi" e逸v" e栄c" mj„c pha a eqpxgtvgt" vtqpi" vj運k" ikcp" o»" rj臼pi" 8逢嬰e"x胤"vtqpi"j·pj"506"8院p"503:0 Rj¤p"v ej"Hqwtkgt"e栄c"ƒr"rjc a rotor, dòng pha a rotor , dòng pha a stator 8逢嬰e"x胤"vtqpi"j·pj"503;"8院p"50430
45
Hình 3.4 E»pi"uw医v"vƒe"f映pi stator *Y+"vjgq"vj運k"ikcp (0-10s)
Hình 3.5 E»pi"uw医v"vƒe"f映piuvcvqt"*Y+"vjgq"vj運k"ikcp"(4.49-4.51s)
Hình 3.6 E»pi"uw医v"vƒe"f映piuvcvqt"*Y+"vjgq"vj運k"ikcp"(9-10s)
V瑛"j·pj"506"8院p"j·ph 3.6."vc"vj医{"e»pi"uw医v"vƒe"f映pi stator fcq"8瓜pi"mjƒ"n噂p0" Vj運k"ikcp" swƒ"8瓜" mjk" vjc{"8鰻k"e»pi"uw医v" vƒe"f映pi stator vjgq"e»pi"uw医v" vƒe"f映pi
stator n羽nh *v瑛"303"OY"n‒p"403"OY+"là 2s. V衣k"zƒe"n壱r (hình 3.6, 9-10s), 8瓜"x丑v"n嘘" vt‒p"e栄c"e»pi"uw医v"vƒe"f映piuvcvqt"uq"x噂k"ikƒ"vt鵜"8員v"*403OY+"n噂p"j挨p"8瓜"x丑v"n嘘"f逢噂k" mjq違pi"407"n亥p0"
46
Hình 3.7 E»pi"uw医v"rj違p"mjƒpi"uvcvqt"*Xct+"vjgq"vj運k"ikcp (0-10s)
Hình 3.8 E»pi"uw医v"rj違p"mjƒpi"uvcvqt"*Xct+"vjgq"vj運k"ikcp (4.49-4.51s)
Hình 3.9 E»pi"uw医v"rj違p"mjƒpi"uvcvqt"*Xct+"vjgq"vj運k"ikcp (3-4s)
V瑛"j·pj"507 8院p"j·pj"509."vc"vj医{"e»pi"uw医v"rj違p"mjƒpi uvcvqt"fcq"8瓜pi"n噂p0" Vj運k" ikcp" swƒ" 8瓜" mjk" vjc{" 8鰻k" e»pi" uw医v" rj違p" mjƒpi uvcvqt" vjgq" e»pi" uw医v" rj違p"
kháng uvcvqt"n羽pj"*v瑛"0.4 MVAr zw嘘pi"2"OXCt) là 2s0"V衣k"zƒe"n壱r"*hình 3.9, 3-4s),
8瓜"x丑v"n嘘"f逢噂ke栄c"e»pi"uw医v"rj違p"mjƒpi"uvcvqt"uq"x噂k"ikƒ"vt鵜"8員v"*0.4MVAr) n噂p"j挨p" 8瓜"x丑v"n嘘"trên mjq違pi"4 n亥p0"
47
Hình 3.10 Dòng ba pha uvcvqt"*C+"vjgq"vj運k"ikcp (0-10s)
Hình 3.11 Dòng ba pha uvcvqt"*C+"vjgq"vj運k"ikcp (4.48-4.52s)
Hình 3.12 Dòng ba pha uvcvqt"*C+"vjgq"vj運k"ikcp (9.99-10s)
V瑛"j·pj"5010 8院p"j·pj"5034, dòng ba pha uvcvqt"e„"ick"mjƒ"n噂p0 Mjk"e»pi"uw医v" vƒe"f映pi uvcvqt"x "e»pi"uw医v"rj違p"mjƒpi"uvcvqt"vjc{"8鰻k"*n¿e"607ư thì dòng ba pha
uvcvqt"ej雨"x丑v"n嘘"t医v" v"x tj運k"ikcp"swƒ"8瓜 d茨pi"x噂k"vj運k"ikcp"swƒ"8瓜 e栄c"e»pi"uw医v" vƒe"f映pi và e»pi"uw医vrj違p"mjƒpi stator (2s).
48
Hình 3.13 F”pi"tqvqt"*C+"vjgq"vj運k"ikcp (0-10s)
Hình 3.14 F”pi"tqvqt"*C+"vjgq"vj運k"ikcp (4.4-4.6s)
Hình 3.15 F”pi"tqvqt"*C+"vjgq"vj運k"ikcp (6.97-7s)
V瑛"j·pj"5035"8院p"j·pj"5037." dòng ba pha rotor e„"ick"mjƒ"n噂p0"Mjk"e»pi"uw医v" vƒe"f映pi stator và côni"uw医v"rj違p"mjƒpi"uvcvqt"vjc{"8鰻k"*n¿e"607ư"vj·"f”pi"dc"rjc"
rotor ej雨"x丑v"n嘘t医v" vx "vj運k"ikcp"swƒ"8瓜d茨pi"x噂k"vj運k"ikcp"swƒ"8瓜"e»pi"uw医v"vƒe" f映pi"x "e»pi"uw医v"rj違p"mjƒpi (2s).
49
Hình 3.16 V嘘e"8瓜"tqvqt"*x”pi1rj¿v+"vjgq"vj運k"ikcp"(0-10s)
Hình 3.17 U嘘"n亥p"8„pi"e逸v"mj„c"rjc"C"vjgq"vj運k"ikcp"*0-10s)
Hình 3.18 U嘘"n亥p"8„pi"e逸v"mj„c"rjc"C"vjgq"vj運k"ikcp"*4.5-5s)
V瑛" j·pj" 5038." v嘘e" 8瓜" tqvqt" mjk" e»pi" uw医v" vƒe" f映pi uvcvqt" x " e»pi" uw医v" rj違p" mjƒpi"uvcvqt"vjc{"8鰻k"*n¿e"607ư fcq"8瓜pi"mjƒ"ecq"*v瑛"38:2"8院p"3:62+"x "vj運k"ikcp" swƒ"8瓜"là 2.35s. V瑛"j·pj"503: và 3.19."u嘘"n亥p"8„pi"e逸v"e栄c"mj„c"rjc"c"v<pii亥p"pj逢" n "vw{院p"v pj"vjgq"vj運k"ikcp pic{"e違"mjk"vjc{"8鰻k"e»pi"uw医v vƒe"f映pi"x "e»pi"uw医v" rj違p"mjƒpi"n羽pj.
50
Hình 3.19 Phân tích Fourier f”pi"8k羽p"rjc"c"uvcvqt Ias (A)
Hình 3.20 Phân tích Fourier f”pi"8k羽p"rjc"c"tqvqt Iar (A)
Hình 3.21 Phân tích Fourier 8k羽p"ƒr pha a rotor Var (V)
V瑛"j·pj"503;"8院p"j·pj"5043."8瓜"ofiq"f衣pi"e栄c"Xct"n噂p"*4590;:'+0"Eƒe"u„pi"
hài e栄c"Xct"e„"ikƒ"vt鵜 ecq"n "j k"d壱e"7"x "d壱e"9" (14.5% và 11%). Kct"x "Kcu"e„"8瓜" ofiq"f衣pi" là 2.36% và 2.19%.
51
4.3Ak隠w"mjk吋p"TUK"f́pi"xgevqt"mj»pi""ikcp"x "j{uvgtguku"5"v亥pi<
O»" j·pj" o»" rj臼pi" d瓜" 8k隠w" mjk吋p" TUK d茨pi" j{uvgtguku" 5" v亥pi trong
Ocvncd1Ukownkpm"8逢嬰e"ejq"vtqpi"j·pj 3.220"Eƒe"m院v"sw違"o»"rj臼pi"e栄c"e»pi"uw医v"tác f映pi uvcvqt."e»pi"uw医v"rj違p"mjƒpi"uvcvqt"."f”pi"dc"rjc"uvcvqt"."f”pi"dc"rjc"tqvqt"." v嘘e"8瓜"tqvqt."u嘘"n亥p"8„pi"e逸v"e栄c"mj„c"rjc"c"eqpxgtvgt"vtqpi"vj運k"ikcp"o»"rj臼pi" 8逢嬰e"x胤"vtqpi"j·pj"5023 8院p"50350"Rj¤p"v ej"Hqwtkgt"e栄c"ƒr"rjc"c"tqvqt."f”pi"rjc"c" rotor , d”pi"rjc"c"uvcvqt"8逢嬰e"x胤"vtqpi"j·pj"5036 8院p"5038. Hình 3.22 U挨"8欝"8k隠w"mjk吋p"TUK"d茨pi"j{uvgtguku"5"v亥pi"x "xgevqt"mj»pi"ikcp
52
Hình 3.23 E»pi"uw医v"vƒe"f映piuvcvqt"*Y+"vjgq"vj運k"ikcp"*0-10s)
Hình 3.24 E»pi"uw医v"vƒe"f映piuvcvqt"*Y+"vjgq"vj運k"iian (4.49-4.51s)
Hình 3.25 E»pi"uw医v"vƒe"f映piuvcvqt"*Y+"vjgq"vj運k"ikcp"*9-10s)
V瑛"j·pj"5023 8院p"j·pj"5025."vc"vj医{"e»pi"uw医v"vƒe"f映pi uvcvqt"fcq"8瓜pi"vj医r" j挨p"pjk隠w"uq"x噂k"rj逢挨pi"rjƒr"RYO0"Vj運k"ikcp"swƒ"8瓜"mjk"vjc{"8鰻k"e»pi"uw医v"tác
f映pi stator theo côpi"uw医v"vƒe"f映pi uvcvqt"n羽pj"*v瑛"303"OY"n‒p"403"OY+"i亥p"pj逢" d茨pi"2"*vtqpi"mjk"RYO"n "2s)0"V衣k"zƒe"n壱r"*hình 3.25, 9-10s), ej‒pj"n羽ej ik英c 8瓜"
53
x丑v"n嘘"vt‒p"e栄c"e»pi"uw医v"vƒe"f映pi stator uq"x噂k 8瓜"x丑v"n嘘"f逢噂k *e»pi"uw医v"vƒe"f映pi"
lênh là 2.1MW) vj医rj挨p"pjk隠w"uq"x噂k"rj逢挨pi"rjƒr"RYO*e栄c"RYO"n "407n亥p).
Hình 3.26 E»pi"uw医v"rj違p"mjƒpi"uvcvqt"*XCT+"vjgq"vj運k"ikcp (0-10s) Hình 3.27 E»pi"uw医v"rj違p"mjƒpi"uvcvqt"*XCT+"vjgq"vj運k"ikcp"*4.49-4.51s) Hình 3.28 E»pi"uw医v"rj違p"mjƒpi"uvcvqt"*XCT+"vjgq"vj運k"ikcp"*3-4s) V瑛"j·pj"5026 8院p"j·pj"5028."vc"vj医{"e»pi"uw医v"rj違p"mjƒpi"uvcvqt"fcq"8瓜pi"vj医r" j挨p"pjk隠w"uq"x噂k"rj逢挨pi"rjƒr"RYO *8瓜"fcq"8瓜pi"ik違o"i亥p"i医r"8»k+0"Vj運k"ikcp" swƒ"8瓜"mjk"vjc{"8鰻k"e»pi"uw医v"rj違p"mjƒpi"uvcvqt"vjgq"e»pi"uw医v"rj違p"mjƒpi"uvcvqt" n羽pj"*v瑛"206"OXCt"zw嘘pg 0 MVAr) là 2s0"V衣k"zƒe"n壱r"*5-4s), ej‒pj"n羽ej"8瓜"x丑v"n嘘"
54
f逢噂k"e栄c"e»pi"uw医v"rj違p"mjƒpi"uvcvqt"uq"x噂k8瓜"x丑v"n嘘"trên *x噂k"ikƒ"vt鵜"8員v"206OXCt+ vj医r"j挨p"pjk隠w"uq"x噂k"rj逢挨pi"rjƒr"RYO*e栄c"RYO"n "6"n亥p+.
Hình 3.29 F”pi"uvcvqt"*C+"vjgq"vj運k"ikcp (0-10s)
Hình 3.30 F”pi"uvcvqt"*C+"vjgq"vj運k"ikcp"*4.48-4.52s)
Hình 3.31 F”pi"uvcvqt"*C+"vjgq"vj運k"ikcp"*9.99-10s)
V瑛"j·pj"5049 8院p"j·pj"5051, dòng ba pha stator i亥p"pj逢"Ukp"ejw育p. Khi công
uw医v"vƒe"f映pi uvcvqt"x "e»pi"uw医v"rj違p"mjƒpi"uvcvqt"vjc{"8鰻k"*n¿e"607ư"vhì dòng ba pha stator i亥p"pj逢"mj»pi"e„"x丑v"n嘘x "vj運k"ikcp"swƒ"8瓜"i亥p"d茨pi"2u *vj医r"j挨p"pjk隠w" uq"x噂k"rj逢挨pi"rjƒr"RYO là 2s).
55
Hình 3.32 F”pi"tqvqt"*C+"vjgq"vj運k"ikcp (0-10s)
Hình 3.33 F”pi"tqvqt"*C+"vjgq"vj運k"ikcp"*4.4-4.6s)
Hình 3.34 Dòng rotor (A) tjgq"vj運k"ikcp"*9.97-10s)
V瑛"j·pj"5032 8院p"j·pj"5054, dòng ba pha rovqt"i亥p"pj逢"Ukp"ejw育p0"Mjk"e»pi" uw医v"vƒe"f映pi uvcvqt"x "e»pi"uw医v"rj違p"mjƒpi"uvcvqt"vjc{"8鰻k"*n¿e"607ư"vj·"f”pi"dc"
pha rovqt"i亥p"pj逢"mj»pi"e„"x丑v"n嘘"x "vj運k"ikcp"swƒ"8瓜"i亥p"d茨pi"2u"*vj医r"j挨p"pjk隠w" uq"x噂k"rj逢挨pi"rjƒr"RYƠ0
56
Hình 3.35 U嘘"n亥p"8„pi"e逸v"e栄c khóa pha a vjgq"vj運k"ikcp"*0-10s)
Hình 3.36 Phân tích Fourier f”pi"8k羽p"rjc"c"uvcvqt ias
Hình 3.37 Phân tích Fourier f”pi"8k羽p"rjc"c"tqvqt Iar
V瑛"j·pj"5058"8院p"j·pj"505:."8瓜"ofiq"f衣pi"e栄c"Xct"n噂p"*345067'+."pj逢pi"x磯p" vj医r"j挨p"i医r"8»k"uq"x噂k"rj逢挨pi"rjƒr"RYO"*4590;:'+0"U„pi"j k"e栄c"Xct"e„"ikƒ"vt鵜" ecq"n "j k"d壱e"8 x "eƒe"j k"i亥p"d壱e"80"Ikƒ"vt鵜"f”pi"rjc"c"tqvqt"x "uvcvqt"*Kct"x "Kcư"
57
e„"8瓜"ofiq"f衣pi""n "2036'"x "2034'"*vj医r"j挨p"mjq違pi"32"n亥p"uq"x噂k"rj逢挨pi"rjƒr"
PWM).
Hình 3.38 Phân tích Fourier 8k羽p"ƒr"rjc"c"tqvqt Var
4.4M院v"sw違"o»"rj臼pi"j羽"vj嘘pi"FHKI"8k隠w"mjk吋p"TUK"d茨pi"j{uvgtguku"5"v亥pi"x " PI:
O»" j·pj" o»" rj臼pi" d瓜" 8k隠w" mjk吋p" TUK d茨pi" j{uvgtguku" 5" v亥pi trong
Ocvncd1Ukownkpm"8逢嬰e"ejq"vtqpi"j·pj 3.380"Eƒe"m院v"sw違"o»"rj臼pi"e栄c"e»pi"uw医v"tác
f映pi uvcvqt."e»pi"uw医v"rj違p"mjƒpi"uvcvqt"."f”pi"dc"rjc"uvcvqt"."f”pi"dc"rjc"tqvqt"." v嘘e"8瓜"tqvqt."u嘘"n亥p"8„pi"e逸v"e栄c"mj„c"rjc"c"eqpxgtvgt"vtqpi"vj運k"ikcp"o»"rj臼pi" 8逢嬰e"x胤"vtqpi"j·pj"5039 8院p"50510"Rj¤p"v ej"Hqwtkgt"e栄c"ƒr"rjc"c"tqvqt."f”pi"rjc"c" tqvqt"."f”pi"rjc"c"uvcvqt"8逢嬰e"x胤"vtqpi"j·pj"5052 8院p"5054.
58 Hình 3.39 U挨"8欝"8k隠w"mjk吋p"TUK"d茨pi"j{uvgtguku"5"v亥pị"RK"x "xgevqt"mj»pi"ikcp Hình 3.40 E»pi"uw医v"vƒe"f映pi (W) thgq"vj運k"ikcp (0-10s) Hình 3.41 E»pi"uw医v"vƒe"f映pi*Y+"vjgq"vj運k"ikcp"*4.49-4.51s) Hình 3.42 E»pi"uw医v"vƒe"f映pi*Y+"vjgq"vj運k"ikcp"*9-10s) V瑛"j·pj"5040 8院p"j·pj"5042."vc"vj医{"e»pi"uw医v"vƒe"f映pi"uvcvqt"fcq"8瓜pi"d茨pi" x噂k"8瓜"fcq"8瓜pi"e»pi"uw医v"vƒe"f映pi"uvcvqt"e栄c"rj逢挨pi"rjƒr"j{uvgtguku"5""v亥pi"m院v" j嬰r"xgevqt"mj»pi"ikcp0"Vj運k"ikcp"swƒ"8瓜"mjk"vjc{"8鰻k"e»pi"uw医v"vƒe"f映pi"uvcvqt"vjgq" e»pi"uw医v"vƒe"f映piuvcvqt"n羽pj"*v瑛"303"OY"n‒p"403"OY+"i亥p"pj逢"d茨pi"2 *ik嘘pi"x噂k" rj逢挨pi"rjƒr"48«"o»"rj臼pi"荏"vt‒p)0"V衣k"zƒe"n壱r"*jình 3.42, 9-32ự"ej‒pj"n羽ej"ik英c"
59 8瓜"x丑v"n嘘"vt‒p"e栄c"e»pi"uw医v"vƒe"f映pi uvcvqt"uq"x噂k"8瓜"x丑v"n嘘"f逢噂k"i亥p"i亥p"ik嘘pi"x噂k" rj逢挨pi"rjƒr"4"8«"o»"rj臼pi荏"vt‒p. Hình 3.43 E»pi"uw医v"rj違p"mjƒpi"*XCT+"vjgq"vj運k"ikcp"(0-10s) Hình 3.44 E»pi"uw医v"rj違p"mjƒpi"*XCT+"vjgq"vj運k"ikcp"*4.49-4.51s) Hình 3.45 E»pi"uw医v"rj違p"mjƒpi"*XCT+"vjgq"vj運k"ikcp"*3-4s)
V瑛"j·pj"5065"8院p"j·pj"5067."e»pi"uw医v"rj違p"mjƒpi"uvcvqt e„"8瓜fcq"8瓜pi"ik嘘pi" x噂k"rj逢挨pi"rjƒr"j{uvgtguku"5"v亥pi"m院v"j嬰r"xgevqt"mj»pi"ikcp0"Vj運k"ikcp"swƒ"8瓜"mjk" vjc{"8鰻k"e»pi"uw医v"rj違p"mjƒpi"uvcvqt"vjgq"e»pi"uw医v"rj違p"mjƒpi"uvcvqt"n羽pj"*v瑛"206" OXCt" zw嘘pi" 2" OXCt+" i亥p" pj逢" d茨pi" 2" *pjcpj" pj医v" vtqpi" 5" rj逢挨pi" rjƒr" 8k隠w"
60
mjk吋p+0" V衣k" zƒe" n壱r" *5-6ự" ej‒pj" n羽ej" 8瓜" x丑v" n嘘" f逢噂k" e栄c" e»pi" uw医v" rj違p" mjƒpi" uvcvqt"uq"x噂k"8瓜"x丑v"n嘘"vt‒p"*x噂k"ikƒ"vt鵜"8員v"206OXCt+"i亥p"ik嘘pi"x噂k"rj逢挨pi"rjƒr"4.
Hình 3.46 F”pi"uvcvqt"*C+"vjgq"vj運k"ikcp (0-10s)
Hình 3.47 F”pi"uvcvqt"*C+"vjgq"vj運k"ikcp"*4.48-4.52s)
Hình 3.48 F”pi"uvcvqt"*C+"vjgq"vj運k"ikcp"*9.99-10s)
V瑛"j·pj"5046 8院p"j·pj"5048, dòng ba pha svcvqt"i亥p"pj逢"Ukp"ejw育p0"Mjk"e»pi" uw医v"vƒe"f映pi uvcvqt"x "e»pi"uw医v"rj違p"mjƒpi"uvcvqt"vjc{"8鰻k"*n¿e"607ư"vj·"f”pi"dc" rjc" uvcvqt" i亥p" pj逢" mj»pi" e„" x丑v" n嘘" x " vj運k" ikcp" swƒ" 8瓜" i亥p" d茨pi" 2u" *ik嘘pi" x噂k" rj逢挨pi"rjƒr"4).
61
Hình 3.49 F”pi""tqvqt"*C+"vjgq"vj運k"ikcp (0-10s)
Hình 3.50 F”pi""tqvqt"*C+"vjgq"vj運k"ikcp"*4.4-4.6s)
Hình 3.51 F”pi""tqvqt"*C+"vjgq"vj運k"ikcp"*9.97-10s)
V瑛"j·pj"5049 8院p"j·pj"5051."f”pi"dc"rjc"tqvqt"i亥p"pj逢"Ukp"ejw育p0"Mjk"e»pi" uw医v"vƒe"f映pi uvcvqt"x "e»pi"uw医v"rj違p"mjƒpi"uvcvqt"vjc{"8鰻k"*n¿e"6.5s) thì dòng ba
rjc" tqvqt" i亥p" pj逢" mj»pi" e„" x丑v" n嘘" x " vj運k" ikcp" swƒ" 8瓜" i亥p" d茨pi" 2u" *ik嘘pi" x噂k" rj逢挨pi"rjƒr"4).
62
Hình 3.52 U嘘"n亥p"8„pi"e逸v"e栄c"mj„c"rjc"Cvjgq"vj運k"ikcp"*ư
Hình 3.53 Phân tích Fourier f”pi"8k羽p"rjc"c"uvcvqt Ias
Hình 3.54 Phân tích Fourier f”pi"8k羽p"rjc"c"tqvqt Iar (A)
V瑛"j·pj"5053 8院p"j·pj"5055."8瓜"ofiq"f衣pi"e栄c"Xct"n噂p"*196.88%), vj医r"j挨p" rj逢挨pi"rjƒr"3"*RYƠ"pj逢pi"ecq"j挨p"rj逢挨pi"rjƒr"40"U„pi"j k"e栄c"Xct"e„"ikƒ"vt鵜"
cao 荏"pjk隠w hài (d壱e"4.5.6.7È+0"Ikƒ"vt鵜"f”pi"rjc"c"tqvqt"x "uvcvqt"*Kct"x "Kcư"e„"8瓜" ofiq"f衣pi""n "2021% và 0.19%.
63
Hình 3.55 Phân tích Fourier 8k羽p"ƒr"rjc"c"tqvqt Var (V)
4.5 Uq"uƒpj"m院v"sw違"5"rj逢挨pi"rjƒr"8k隠w"mjk吋p RSI x "pj壱p"zfiv<
Eƒe"m院v"sw違"o»"rj臼pi"荏"o映e"604."605."606"8逢嬰e"jk吋p"vj鵜"vtqpi"eƒe"d違pi 3.2,
505."506"8吋"vk羽pejq"xk羽e"uq"uƒpj"dc"rj逢挨pi"rjƒr"8k隠w"mjk吋p"8«"vt·pj"d {0
D違pi"502 Ikƒ"vt鵜"e»pi"uw医v"vƒe"f映piuvcvqt"Ru"x "e»pi"uw医v"rj違p"mjƒpi"uvcvqt"Sue栄c" 5"mk吋w"8k隠w"mjk吋p荏zƒe"n壱r"泳pi"x噂k"x壱p"v嘘e"tqvqt"3:22x”pi1rj¿v"x "3422x”pi1rj¿v
PWM 3-level
Hysteresis
3-level Hysteresis + PI
Max Min Max Min Max Min
n=1800 (v/ph) Ps MW 2.245 6.9% 2.045 2.62% 2.121 1% 2.081 0.91% 2.12 0.95% 2.081 0.91% Qs MVar 0.414 3.5% 0.34 15% 0.42 5% 0.379 5.25% 0.42 5 % 0.381 4.75% n=1200 (v/ph) Ps MW 2.16 2.86% 1.946 7.3% 2.119 0.91% 2.079 1% 2.119 0.91% 2.08 0.95% Qs MVar 0.454 13.5% 0.373 6.75% 0.421 5.25% 0.379 5.25% 0.419 4.75% 0.381 4.75%
64
Tt鵜"pj臼"pj医v"e栄c PMax: 3-level Hysteresis và 3-level Hysteresis + PI x噂k" n = 1200 vòng/phút (0.91%) .
Tt鵜"pj臼"pj医v"e栄c"PMin: 3-level Hysteresis và 3-level Hysteresis + PI x噂k n = 1800 vòng/phút (0.91%).
Tt鵜"pj臼"pj医v"e栄c"QMax : 3-ngxgn"J{uvgtguku"-"RK""x噂k"n = 1200 vòng/phút (4.75%) . Tt鵜"pj臼"pj医v"e栄c"QMin : 3-ngxgn"J{uvgtguku"-"RK""x噂k"n = 1800 vòng/phút và n = 1800 vòng/phút (4.75%).
Pj英pi" ikƒ" vt鵜" 8逢嬰e" v»" 8臼" vtqpi" d違pi" 504" n " pj英pi" ikƒ" vt鵜" v嘘v" pj医v trong 3
rj逢挨pi"rjƒr0 Ttqpi"d違pi"504.j亥w"j院v"eƒe"ikƒ"vt鵜 v嘘v"pj医v 8隠w"p茨o"荏"rj逢挨pi"rjƒr"5 *rj逢挨pi"rjƒr"ew嘘k"épi+.
V瑛"d違pi"3.2."vc"vj医{"5-level hysteresis + PI controller và 3-level hysteresis có
Ru"x "Su"荏"zƒe"n壱r"v嘘v"j挨p"RYO"eqpvtqnngt0 3-level hysteresis + PI controller e„"8瓜" fcq"8瓜pi"e»pi"uw医v vƒe"f映pi stator Ps vj医r"j挨p o瓜v"ej¿v uq"x噂k"5-level hysteresis controller (0.95 + 0.91=1.86% < 1+ 0.91=1.91%, 0.91 + 0.95=1.86% < 0.91 + 1=1.91%). Ngoài ra, 3-level hysteresis + PI controller có Ps fcq"8瓜pi"swcpj"ikƒ"vt鵜" e»pi" uw医v vƒe" f映pi 8員v stator Ps* (2.1 MW) 8隠w" j挨p" uq" x噂k" 5-level hysteresis controller (|0.95 - 0.91|=0.04% < |1Î 0.91|=0.09%, |0.91 - 0.95|=0,04% < |0.91 Î
1|=0.09%).
Trong d違ng 3.3, s嘘" n亥p" 8„pi" e逸v" vj医r" pj医v" vtqpi" 32u" e栄c" dc" rjc<" RYO" x噂k"
n=1200 vòng/phút (664309n亥p+0
V瑛"d違pi"3.3."vc"vj医{"u嘘"n亥p"8„pi"e逸v"e栄c"rj逢挨pi"rjƒr"RYO"vj医r"j挨p"pjk隠w"uq" x噂k"jck"rj逢挨pi"rjƒr"e”p"n衣k."5-ngxgn"j{uvgtguku"e„"u嘘"n亥p"8„pi"e逸v"vj医r"j挨p"o瓜v"ej¿v"
so x噂k"5-ngxgn"j{uvgtguku"-"RK0"X噂k"épi"o瓜v"mk吋w"8k隠w"mjk吋p"vj·"v亥p"u嘘"8„pi"e逸v"e栄c" eƒe"mj„c"8k隠w"mjk吋p"eƒe"rjc"mjƒe"pjcw"vj·"mjƒe"pjcw"*pj逢"3-ngxgn"j{uvgtguku"x噂k"
n=1800 vòng/phút thì pha a là 1544264, pha b là 1757079, pha c là 1757060). V亥p" u嘘"8„pi"e逸v"mjƒe"pjcw"ik英c"eƒe"rjc"vtqpi"épi"3"rj逢挨pi"rjƒr"8k隠w"mjk吋p"n "fq"mjk"
65
o瓜v"mj„c"vjc{"8鰻k"vt衣pi"vjƒk"*v瑛"2"ucpi"3"jc{"v瑛"3"vj pj"2+"vj·"mj»pi"e„"pij c"n "n¿e" 8„"eƒe"mj„c"mjƒe"e pi"8cpi"vjc{"8鰻k"vt衣pi"vjƒk"*x "f映"pj逢"vjc{"8鰻k"vt衣pi"vjƒk"v瑛"
(110) thành (100) thì ej雨"e„"mj„c"e栄c"rjc"d"n "vjc{"8鰻k"vt衣pi"vjƒk+0
D違pi"503 U嘘"n亥p"8„pi"e逸v"vtqpi"30s c栄c"mj„c"8k隠w"mjk吋p"e栄c"5"mk吋w8k隠w"mjk吋p泳pi" x噂k"x壱p"v嘘e"tqvqt"3:22x”pi1rj¿v"x "3422x”pi1rj¿v U嘘"n亥p"8„pi"e逸v"vtqpi"10s PWM 3-level Hysteresis 3-level Hysteresis + PI n=1800 (rpm) Pha a 229521 1544264 1632580 Pha b 229651 1757079 1787677 Pha c 229465 1757060 1787682 Ba pha 688637 5058403 5207939 n=1200 (rpm) Pha a 221349 1512052 1589859 Pha b 221423 1737533 1763371 Pha c 221537 1737124 1763360 Ba pha 664309 4986709 5116590
D違pi"504 A瓜"ofiq"f衣pi (THD) e栄c"Xct."Kct."Kcu"荏"zƒe"n壱re栄c"5"mk吋w"8k隠w"mjk吋p泳pi" x噂k"x壱p"v嘘e"tqvqt"3:22x”pi1rj¿v"x "3422x”pi1rj¿v THD PWM 1 kHz 3-level Hysteresis 3-level Hysteresis + PI n=1800 (rpm) Var 273.98% 123.45% 196.88% Iar 2.36% 0.12% 0.19% Ias 2.19% 0.14% 0.21% n=1200 (rpm) Var 209.74% 119.01% 121.79% Iar 2.58% 0.12% 0.26% Ias 2.43% 0.15% 0.16%
66
Tt鵜" vj医r" pj医v" e栄c THD e栄c Var: 3-level Hysteresis x噂k n = 1200 vòng/phút (119.01%).
Tt鵜"vj医r"pj医v"e栄c"VJF"e栄c"Iar: 3-level Hysteresis x噂k"p"?"3422"x”pi1rj¿v và n= 1800 vòng/phút (0.12%).
Tt鵜" vj医r" pj医v" e栄c" VJF" e栄c"Ias: 3-ngxgn" J{uvgtguku" x噂k" p" ?" 3:22" x”pi1rj¿v"
(0.14%).
Swc"m院v"sw違"o»"rj臼pị"vc"vj医{"rj逢挨pi"rjƒr"5-ngxgn"j{uvgtguku"-"RK"8k隠w"mjk吋n
67
EJ姶愛PI"5<"M蔭V"NW一P XÉ"A卯PJ"J姶閏PI"A陰"VÉK
5.1M蔭V"NW一P<
Qwc"m院v"sw違"o»"rj臼pi"vc"vj医{<
-"A嘘k"x噂k"rj逢挨pi"rjƒr"RYO *rj逢挨pi"rjƒr"3)<"v衣k"zƒe"n壱r."e»pi"uw医v"tác
f映pi stator x "e»pi"uw医v"rj違p"mjƒpi"uvcvqt fcq"8瓜pi"mjƒ"n噂p, vj運k"ikcp"swƒ"8瓜"mjk" vjc{"8鰻k"e»pi"uw医v"vƒe"f映pi uvcvqt"vjgq"e»pi"uw医v"vƒe"f映pi uvcvqt"n羽pj"*v瑛"303"OY"
lên 2.1 MW) khá cao (2s). V衣k"zƒe"n壱r"*;-32ự"8瓜"x丑v"n嘘"vt‒p"e栄c"e»pi"uw医v"vƒe"f映pi uvcvqt"uq"x噂k"ikƒ"vt鵜"8員v"*403OY+"n噂p"j挨p"8瓜"x丑v"n嘘"f逢噂k"mjq違pi"407"n亥p, x "8瓜"fcq" 8瓜pi"swcpj"ikƒ"vt鵜"8員v"n噂p. Aƒr"泳pi *ikƒ"vt鵜"zƒe"n壱r"x "vj運k"ikcp"swƒ"8瓜+ e栄c"e»pi" uw医v"vƒe"f映pi"uvcvqt."e»pi"uw医v rj違p"mjƒpi"uvcvqt"8隠w"z医w"j挨p"e栄c"rj逢挨pi"rjƒr"4"
(3-ngxgn""j{uvgtguku"m院v"j嬰r"xgevqt"mj»pi"ikcp+"x "5"*5-level hysteresis + PI). Tuy nhiên, pj逢挨pi"rjƒr"p {"e„"u嘘"n亥p"8„pi"e逸v"e栄c"mj„c"eqpxgtvgt"vtqpi"o瓜v"ejw"m "nà
vj医r"pj医v"vtqpi"5"rj逢挨pi"rjƒr."vk院v"mk羽o"p<pi"n逢嬰pi"ejq"d瓜"8k隠w"mjk吋p0
-A嘘k" x噂k" rj逢挨pi" rjƒr" j{uvgtguku" 5" v亥pi<" v衣k" zƒe n壱r." e»pi" uw医v" vƒe" f映pi uvcvqt"fcq"8瓜pi" vj医r"j挨p"pjk隠w"uq"x噂k"rj逢挨pi"rjƒr"RYO, vj運k"ikcp"swƒ"8瓜" e栄c e»pi" uw医v" vƒe" f映pi stator i亥p" pj逢" d茨pi" 2" *pjcpj" j挨p" pj隠w" uq" x噂k" rj逢挨pi" rjƒr"
PWM)."e栄c"e»pi"uw医v"rj違p"mjƒpi"n "4u *d茨pi"x噂k"rj逢挨pi"rjƒr"RYƠ. V衣k"zƒe"n壱r"
(9-10s), ej‒pj" n羽ej" 8瓜" x丑v" n嘘" vt‒p" e栄c" e»pi" uw医v" vƒe" f映pi uvcvqt" x噂k" ikƒ" vt鵜" 8員v"
(403OY+"uq"x噂k"8瓜"x丑v"n嘘"f逢噂k"vj医r"j挨p"pjk隠w"uq"x噂k"rj逢挨pi"rjƒr"RYO *i亥p"pj逢" mj»pi"e„"ej‒pj"n羽ej."vtqpi"mjk"e栄c"RYO"n "407"n亥p+. Rj逢挨pi"rjƒr"p {"e„"u嘘"n亥p" 8„pi"e逸v"e栄c"mj„c"eqpxgtvgt"vtqpi"o瓜v"ejw"m "ecq"i医r"9"n亥p"uq"x噂k"RYỌ"f磯p"8院p" e»pi"uw医v"8k隠w"mjk吋p"ecq"j挨p"pjk隠w"uq"x噂k"RYO0Rj逢挨pi"rjƒr"p {"e„"8瓜"ofiq"f衣pi e栄cf”pi"tqvqt."f”pi"uvcvqt"x "ƒr"tqvqt"vj医r"pj医v"vtqpi"5"rj逢挨pi"rjƒr0
-"A嘘k"x噂k"rj逢挨pi"rjƒr"j{uvgtguku"5"v亥pi"m院v"j嬰r"RK<"v衣k"zƒe"n壱r."e»pi"uw医v" vƒe"f映piuvcvqt"fcq"8瓜pi"vj医r"j挨p"pjk隠w"uq"x噂k"rj逢挨pi"rjƒr"RYO"x vj医r"j挨p"o瓜v"
chút so x噂k"rj逢挨pi"rjƒr"4 *30:8'"uq"x噂k"30;3' pj逢"8«"v pj"荏"o映e"607"ej逢挨pi"6),
vj運k"ikcp"swƒ"8瓜"e栄c e»pi"uw医v"vƒe"f映pi uvcvqt"i亥p"pj逢"d茨pi"2 *d茨pi"x噂k"rj逢挨pi" rjƒr"4+."e栄c"e»pi"uw医v"rj違p"mjƒpi"i亥p"d茨pi"2"*pjcpj"pj医v"vtqpi"dc"rj逢挨pi"rjƒr+.
68
vt鵜"8員v"*403OY+"uq"x噂k"8瓜"x丑v"n嘘"f逢噂k"vj医r"pj医v"vtqpi"5"rj逢挨pi"rjƒr*2026'"pj逢"8«" v pj"荏"o映e"607"ej逢挨pi"6+. Rj逢挨pi"rjƒrp {"e„"u嘘"n亥p"8„pi"e逸v"e栄c"mj„c"eqpxgtvgt ecq"pj医v"vtqpi"dc"rj逢挨pi"rjƒr (i亥p"d茨pi"x噂k"rj逢挨pi"rjƒr"4).
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[1] S. Masoud Barakati, Applications of Matrix Converters forWind Turbine Systems (VDM Verlag Dr. Muller, Germany, 2008).
[2] U0"Mtqjp."ÐVjg"ykpf"gpgti{"rkqpggtÏRqwn"nc"Eqwt.Ñ"Vjg"FcpkujYkpf"Vwtdkpg"
Manufacturers Association, http://webasp.ac-aix-marseillẹfr/rsi/bilan/action_0405 /13LduRempart/Doc/Doc_page/ windpower.pdf (2008).
[3] T0"Jqhhocpp"cpf"R0Owvuejngt."ÐVjg"kpÞwgpeg"qh"eqpvtqn"uvtcvgikgu"qp"vjg"gpgti{"
capture of wind vwtdkpgụÑ"Crrnkecvkqp"qh"Gngevtkecn"Gpgti{"*4222+, pp. 886Î893. [4̲" " U0" Ocuqwf" Dctcmcvk." ÐYkpf" vwtdkpg" u{uvgou<" jkuvqt{." uvtwevwtg.cpf" f{pcoke" oqfgn.Ñ"kp"Handbook of renewable energy technology, 1nd ed., vol. 1. Ạ F. Zobaa and R. C. Bansal, Ed. Australia: World scientific, 2011, pp. 21-51.
[5] P. Migliqtg." L0" xcp" Fco" cpfC0" Jwumg{." ÐCeqwuvke" Vguvu" qh" UocnnYkpf" Vwtdkpgucv.Ñ http://www.wind.appstatẹedu/reports/NRELAcousticTestsofSmallWi- ndTurbines.pdf (2007).
[6] L.H. Hansen, L. Helle, F. Blaabjerg, Ẹ Ritchie, S. Munk-Nielsen, H. Bindner, P. Sørensen and B. Bak-Lgpugp." ÐEqpegrvwcn" uwtxg{" qh" igpgtcvqtu" cpf" rqygt" gngevtqpkeu" hqt" ykpf" vwtdkpgụÑ" Tku¼ National Laboratory, Roskilde, Denmark, December 2001.
[7] Ọ Carlson, J. Hylcpfgt"cpf"M0"Vjqtdqtị"ÐUwtxg{"qh"xctkcdng"urggf"qrgtcvkqp"qh" ykpf" vwtdkpgụÑ European Union Wind Energy Conf., Goeteborg, Sweden, May 1996, pp. 406Î409.
[8] O0"Kfcp."F0"Nkqt"cpf"I0"Ujcxkx."ÐC"tqdwuv"eqpvtqnngt"hqt"c"pqxgn"xctkcdng"urggf"
wind turbine transokuukqp.Ñ"L0"Uqnct"Gpgti{"Gpikpggtkpi"342"*3;;:+"469Î252. [9] U0"Djqyokm"cpf"T0"Urgg."ÐYkpf"urggf"guvkocvkqp"dcugf"xctkcdng"urggf"ykpf" rqygt" igpgtcvkqp.Ñ Proc. 24th Annual Conf. of the IEEE, vol. 2, 31 AugustÎ4 September 1998, pp. 596Î601.
71
[10] M.G. Simoes." D0M0" Dqug" cpf" T0L0" Urkgign." ÐHw¦¦{" nqike" dcugf" kpvgnnkigpv"
control of a variable urggf" ecig" ocejkpg" ykpf" igpgtcvkqp" u{uvgọÑ" KGGG" Vtcp0"
Power Electronics 12 (1997) 87Î95.
[11] S0Ycpi"cpf"N0"Ejcpị"ÐCp"kpvgnnkigpv"oczkowo"rqygt"gzvtcevkqp"cniqtkvjo"
for inverter-based xctkcdng" urggf" ykpf" vwtdkpg" u{uvgoụÑ" KGGG" Vtcpu0" Rqygt"
Electronics 19 (2004) 1242Î1249.
[12] C0"Oknngt."G0"Ownlcfk"cpf"F0U0"¥kpigt."ÐC"xctkcdng"urggf"ykpf"vwtdkpg"rqygt" eqpvtqn.Ñ"KGGG Trans. Energy Conversion 12 (1997) 181Î186.
[13] L. Xu and E0" Ygk." ÐVqtswg" cpf" tgcevkxg" rqygt" eqpvtqn" qh" c" fqwdn{" hgf"
induction machine by rqukvkqp" ugpuqtnguu" uejgog.Ñ" KGGG" Vtcpu0" Kpfwuvt{"
Applications 31 (1995) 636Î642.
[14] Y0"Nw"cpf"D0V0"Qqk."ÐOwnvkvgtokpcn"NXFE"u{uvgohqt"qrvkocn"ceswkukvkqp"qh"
power in wind-farm wukpi"kpfwevkqp"igpgtcvqtụÑ"KGGG"Vtcpu0"Rqygt"Gngevtqpkeu"39"
(2002) 558Î563.
[15] J.L. Rodriguez-Cogpgfq."U0"Ctpcnvg"cpf"L0E0"Dwtiqụ"ÐCwvqocvke"igpgtcvkqp"
control of a wind hcto" ykvj" xctkcdng" urggf" ykpf" vwtdkpgụÑ" KGGG" Vtcpu0" Gpgti{"
Conversion 17 (2002) 279Î284.
[16] F0"Ug{qwo"cpfO0H0"Tcjocp."ÐVjg"f{pcoke"ejctcevgtkuvkeu"qh"cp"kuqncvgf"ugnh- excited induction igpgtcvqt" ftkxgp" d{" c" ykpf" vwtdkpg.Ñ" Tge0" kp" Rtqe0" KCU" Eqph0."
Industry Applications Conf., Annual Meeting, vol. 2, October 2002, pp. 731Î738. [17] Live Journal, www.windturbinẹlivejournal.com.
[18] L0" Ocvgxqu{cp." ÐYkpf" rqygt" kp" ctgcu" ykvj" nkokvgf" gzrqtv" ecrcdknkv{.Ñ"
Licentiate Thesis Royal Institute of Technology Department of Electrical Engineering Stockholm (2004).
[19] D.S. Zinger and ẸMuljadk." ÐCppwcnk¦gfykpf" gpgti{" kortqxgogpv" wukpi" xctkcdng"urggfụÑ"KGGG Trans. Industry Applications 33 (1997) 1444Î1447.
[20] N0"Fcodtqukq"cpf"D0"Hqtvwpcvq."ÐQpg"uvgr"cjgcf"cfcrvkxg"eqpvtqn"vgejpkswg"
for a wind turbine-u{pejtqpqwu" igpgtcvqt" u{uvgọÑ" Rtqe0" KGEEC-97, Intersociety Energy Conversion Engineering Conf., vol. 3, July 1997, pp. 1970Î1975.
72
[21] W.-S. Chienand and Ỵ-[0"V¦qw."ÐCpcn{uku"cpf"fgukip"qp"vjg"tgfwevkqp"qh"FE- link electrolytic ecrcekvqt"hqt"CE1FE1CE"eqpxgtvgt"crrnkgf"vq"CE"oqvqt"ftkxgụÑ"
Proc. IEEE PESC 98, Power Electronics Specialists Conf., vol. 1, May 1998, pp. 275Î279.
[22] O0Xgpvwtkpk."ÐC"pgy"ukpg"ycxg"kp"ukpg"ycxg"qwv."eqpxgtukqp"vgejpkswg"yjkej"
eliminates reactive gngogpvụÑ"Rtqe0"RQYGTEQP"9"*3;:2+."rr0"G5"3ÎE3 15.
[23] M. Venturini and C0" Cngukpc." ÐVjg" igpgtcnk¦gf" vtcpuhqtogt<" C" pgy"
bidirectional sinusoidal waveform frequency converter with continuously adjustable
kprwv"rqygt"hcevqt.Ñ"Rtqe0"KGGGRGUEÓ:2"*3;:2+."rr0"464Î252.
[24] L. Helle, K.B. Larsen, ẠH. Jorgensen, S. Munk-Nielsen and F. Blaabjerg,
ÐGxcnwcvkqp" qh" oqfwncvkqp" uejgogu" hqt" vjtgg-phase to three-phase matrix
eqpxgtvgtụÑ"KGGG"Vtcpu0"Kpfwuvtkcn"Gngevtqpkeu"73"*4226+"37:Î171.
[25] D0Qqk"cpfO0Mc¦gtcpk."ÐGnkokpcvkqp"qh"vjgycxghqtofkuvqtvkqpu"kp"vjg"xqnvcig- source-converter type ocvtkz"eqpxgtvgt.Ñ"Eqph0"Tge0"KGGG-IAS Annụ Meeting, vol. 3 (1995), pp. 2500Î2504.
[26] L0" Yw." R0" Fqpị" L0O0[cpi" cpf[0T0" Ejgp." ÐC" pqxgn" oqfgn" qh" ykpf" gpgti{" eqpxgtukqp" u{uvgọÑ Proc. DRPT2004, IEEE Int. Conf. on Electric Utility Deregulation and Power Technologies, April 2004, Hong Kong, pp. 804Î809.
[27] U0O0"Dctcmcvk."O0"Mc¦gtcpk"cpf"L0F0"Crngxkej."ÐC"f{pcoke"oqfgn"hqt"c"ykpf"
turbine system kpenwfkpi" c" ocvtkz" eqpxgtvgt.Ñ" Rtqe0" KCUVGF." RGU4229." Lcpwct{"