Thông tin tài liệu
JOLRNAL OF SCIENCE* TECHNOLOGY * No 83B - 201 NEW APPROACH OF SPACE VECTOR PWM FOR INDUCTION MOTOR CONTROL BASED ON F P G A - V H D L TECHNOLOGY PHUONG P H A P DIEU CHE VECTOR KHONG GIAN DIEU KHIEN D O N G CO KHONG DONG BO TREN CO SO CONG NGHE FPGA-VHDL Le Minh Phuong Ho Chi Minh City I 'niversily ofTechnologyABSTRACT This paper presents a realization of the space-vector pulse-width modulation (SVPWM) strategy of three-phase inverter motor control voltage source for Induction motor (IM) control systems That has been developed using the ready-to-use field-programmable gate array (FPGA) technology and combined hardware description language (VHDL) Besides theoretical pulse-width modulation and space vector motor control algorithms for three phase Induction motors which are presented In ttie paper, the authors also describe the programmed algorithm of vector space modulation, which is applicable to FPGA-VHDL In particular, the paper has proposed the new algorithm for determining deadtime for IGBT semiconductor, which is adjusted free by users The control and adjusted parameters are variable by using the software Interface between computer and FPGA, which is programmed on Visual Basic The proposed SVPWM control scheme can be realized using FPGA (Spartan 3E) from Xllinx and hardware description language on ISE 8.21 software for control systems three-phase Induction motors Experimental test results demonstrate good performances of conttol systems Keywords: Induction motor, FPGA, space-vector PWM, three-phase voltage source inverter TOM T A T Bii bio trinh bay vlec thwc hiin giii thuit diiu chi rdng xung vec-ta khdng gian cho bd biin tin pha nguin ip diiu khiin ddng ca khdng ding bd bing dch sir dung cdng nghe hiin dai vi mach ciu triic ming phin tir logic mi ngwdi dung cd thi lip trinh dwgc (FPGA) kit hgp sir dung ngdn ngir lip trinh phin cirng (VHDL) Ngoii ly thuyit diiu chi rgng xung vec-tg khdng glan vi giii thuit diiu khiin ddng eg khdng ddng bd pha dwgc trinh biy bii bao, tic gla da md ti chi tiit giii thuit lap trinh diiu chi vec-ta khdng gian ip dung cho FPGA-VHDL Die biit, bai bio da di xuk thuit tain xic dinh thdi gian deadtime hoan toan mdi cho dc khda ban din IGBT vi cho phip diiu chlnh dc gii tri niy theo ngwdi sir dung Vlec diiu khiin va hieu chinh cic thdng si thirc hien ntid phin mim giao dien giiTa miy tinh vi FF'GA dwgc lip trinh bing ngdn ngw Visual Basic Cic giii thuit vi thuit tgin di xuit bii bio kiim chwng bing chwang trinh dwgc lip tren ngdn ngw phin cirng hd trg bdi phin mim ISE 8.21 vdi thwc nghiem sir dung card Spartan 3E hang Xllinx irng dtjng cho he truyin ddng ddng co khdng ddng bd ba pha High speed, very large number of components, large number of supported protocols, and addition of ready-to-use intellectual property cores make programmable devices the preferred choice of implementation and even deployment mass production quantities of Power Electronics [3] I INTRODUCTION Nowadays, most -\C drives and universal pulse-width modulation (PW M) inverters today adopt microprocessor-based digital control strategy The most common principle of this kind is the constant \ / f principle which requires that the magnitude and frequency of the voltage applied to the stator of a motor maintain a constant ratio [I] To easy design control svstem induction motor and reliable a request about very high witching frequency of power inverters is used the ready-to-use fieldprogrammable gate array |2| In this paper, the application of FPGA to the SVPWM technique realization for threephase voltage source inverter and control induction motor by V/f principle is described, the experimental results are presented The topology of control circuit is shown in figure I 54 JOLRNAL OF S C I E N C E * TECHNOLOGY * No B - a i l Where a=exp(j2Tt/3) The space vector is a simultaneous representation of all the threephase quantities It is a complex variable and is function of time in contrast to the phases Phase to common point voltage depends on the fuming off signal for the switch ^P[j (4) Where Vdc is the DC-link voltage and Figure Base space vectors Components aP of the voltage vectors are gained from abc voltages by using Clark's transformation: ^^T:\ w Kt -I H" 1'^ \ M, \jr s*-,iii,.>\^t Oi i n , n ^ u n j u i ^U O J O - iUl In this paper, the design and implementation of sine processor programming algorithm bv VHDL are presented This survey has for goal to implant the processor in a small FPGA area, high-speed generation and high precision IV CONCLUSIONS This paper presents the design and implementation of a programmable SVPWM control employing the FPGA technology A static RAM-based FPGA was used to implement the proposed scheme An applicafion FPGA for SVPWM technique allow to prove Power Electronic Devise, such voltage source inverters and increase switching frequency of power electronic switches These experimental results are provided to verify the implemented SVPWM control IM The constructed SVPWM can generate a wide range of PWM output voltages and frequencies REFERENCES Meyer-Baese Digital Signal Processing with Field Programmable Gate Arrays, Springer-Verlag, Berlin Heidelberg, 2004 Phan Quoc Dzung, Le Minh Phuong, Pham Quang Vinh, Nguyen Minh Hoang, Tran Cong Binh, "New Space Vector Control Approach for Four Sw itch Three Phase Inverter (FSTPI)", PEDS'07, Bangkok, Thailand Jozsef Vasarhelyil, Maria Imecs, Csaba Szabo, loan lov Incze FPGA Implementation Vector Control of Tandem Converter Fed Induction Machine Kharrat M.W, Masmoudin., Kamounl FPGA-based Sine processor For Field Oriented Control of Induction Motor N A Azii and L Y Teng, P Y Lim Implementation of a Single-carrier Multilevel PWM Technique Using Field Programmable Gate Array (FPGA), PEDS'07, Bangkok, Thailand Author's address: Le Minh Phuong- Tel.: (+84) 988.572.177, Email: Imphuong/S^hcmut.edu.vn Faculty of Electrical -Electronics Engineering Ho Chi Minh City University of Technology No 268, Ly Thuong Kiet, Dist 10, Ho Chi Minh City •sl) ... result in basic space vectors r, ^ r, (Table II), O''f, '' « =-l''ele^>^P[j (4) Where Vdc is the DC-link voltage and Figure Base space vectors Components aP of the voltage vectors are gained from... ^ Vdc Name VO VI V2 V3 V4 V5 V6 V7 ''1 ''- (7) Because the voltage vectors V| and V, are basic vectors and '',i and V- are zero vectors, this aives ^''•li^.i^ '' r '' 7", (8) where Ts is the sw itching... time for \ '' and V2 respectively Table2 Basic space vectors and vectors zero State l„ 11''^,,, dl = [l''o
Ngày đăng: 08/12/2022, 21:26
Xem thêm:
