EMC problems of power electronic converters

... currents of power electronic converters. ” [PhD thesis] University of West Bohemia, Plzeň, Czech Republic, 2004 (in Czech) [8] KŮS, V.; DRÁBEK, P Low Frequency Interference of Softstarters on Power ... dynamic changes of circuit quantities – voltage changes of supply source, converter load changes, change of thyristor firing pulses, etc At first, the impact of phase volta...

Ngày tải lên: 29/08/2017, 14:57

... bị điều tiết ba pha chỉnh lưu cầu ba pha điều khiển đầy đủ từ quan điểm tương thích điện điện (EMC) giao thoa tần số thấp Chủ đề báo hài không đặc trưng Các thành phần tần số nảy sinh điều kiện

Ngày tải lên: 29/08/2017, 14:57

... ENGNG3070 Power Electronics Devices, Circuits and Applications TOPOLOGIES OF POWER ELECTRONIC CONVERTERS 3.1 Introduction Power electronic converters (PECs) are static devices, ... to the subdivision of power electronic converters into four categories: AC to DC converters (rectifiers), DC to AC converters (inverters), DC to DC converters and AC to AC converter...

Ngày tải lên: 17/12/2013, 14:15

... over -compensation make power losses on the network increase Thus, it is necessarily to control parameters and switching compensation devices according to the changing of loads The controlling of compensation ... compensation devices could be implemented by power electronics structures controlling the firing angle of thyristor In the next section, we introdu...

Ngày tải lên: 05/03/2014, 14:20

... DYNAMIC ELECTRO- THERMAL MODEL OF POWER ELECTRONIC BUILDING BLOCK IN MICRO GRID: MODELING, ANALYSIS AND SIMULATION HUANHUAN WANG (M.Eng(Hons.), B.Eng, Xi’an Jiao Tong Univ., Xi’an, China) ... proposed dynamic electro- thermal model is playing vital roles in the design and simulation of PEBB systems, requiring thermal control and efficiency improv...

Ngày tải lên: 09/09/2015, 10:06

... INVESTIGATIONS INTO DESIGN AND CONTROL OF POWER ELECTRONIC SYSTEMS FOR FUTURE MICROPROCESSOR POWER SUPPLIES Ravinder Pal Singh (B.Tech(Hons), IIT Kharagpur, India) A THESIS SUBMITTED FOR ... requirements, the design of next generation VRMs need a thorough understanding of the performance and design trade-os The supply voltage of the microprocessor w...

Ngày tải lên: 11/09/2015, 10:06

... boost and buck- boostderived dc-dc power converters CHAPTER LITERATURE SURVEY OF SOLUTIONS TO DYNAMIC RESPONSE PROBLEMS OF BOOST AND BUCK- BOOSTDERIVED DC-DC POWER CONVERTERS 2.0 Introduction In ... belonging to stepup and step-up/down category of SMPS are considered for investigation 1.2 Boost and Buck -Boost- Derived DC-DC Converters Single-switch boost...

Ngày tải lên: 16/09/2015, 15:54

... of AC/ DC mode (Output inductance Lout of DC /AC mode): Lin = 6.74mH • Input capacitance of AC/ DC mode (Output capacitance Cout of DC /AC mode): Cin = 3.76uF • DC capacitor: Cdc = 600uF For AC/ DC ... relationship omitted for AC/ DC operation This capacitor block will be added to standard cell if the cell works in DC /AC mode Hence, the following para...

Ngày tải lên: 29/09/2015, 12:52

... “Plug-n-Play” using standard cells 1.2.2 Conceptual Design of A Universal Power Electronic Cell Power electronic converters can be broadly classified as DC/ DC, DC/ AC, AC /DC and AC/ AC converters We can ... applications: a )DC to AC inverter, b )AC to DC converter, c )DC to AC motor controller, d )AC to DC 18 boost converter and e )DC to DC boost...

Ngày tải lên: 29/09/2015, 12:55

... the required rms value of the fundamental harmonic of the output phase to neutral voltage of the AC-AC voltage controller Induction machine Fig 6.5: Speed control of an induction machine by stator ... power supply source for V/f control of induction motors The second one, current source inverter (CSI), is beyond the scope of interest here Principle of operation of...

Ngày tải lên: 11/07/2014, 05:20

... tranzito công suất loại BUT 90 có thông số sau: Mã hiệu UCE ,V UCE0 , V UCE sat , V IC, A IB , A toff, às ton, às ts, às Pm, W 26 BUT 90 200 125 1,2 50 0,4 1,2 1.5 250 Chọn đi-ot (D1 ữ D4) Biểu

Ngày tải lên: 02/08/2014, 09:21

... 837.2265 12 2.2908 1. 6245 12 2.23 81 938.4743 17 4.7545 −0.0 318 ⎥ ⎥ −0.2 013 ⎥ ⎥ −0.9993 16 4.6 412 558.5089 14 .6500 ⎥ ⎥ 0.03 71 [G] = ⎢ ⎢ ⎢ ⎢ ⎢ ⎢ ⎢ ⎢ ⎣ −0 .14 96 14 .6574 512 .9538 ⎥ ⎥ ⎦ ⎡ ⎤ ⎢ 15 .6558 ... modeling approach for advanced electronic packages 12 2 .1 A schematic of multilayered microprocessor package 16 2.2 A schematic of top-level metal for signal ....

Ngày tải lên: 14/09/2015, 14:12

... ⎢ H (2) (·) ⎢ ⎢ ⎢ ⎢ H (2) (·) ⎢ ⎢ ⎢ ⎢ ⎢ ⎢ (2) ⎢H ⎢ 2N −1 (·) ⎣ (2) H2N (·) (2) −H1 (·) (2) H2 (·) ··· (2) H0 (·) (2) −H1 (·) (2) H2 (·) (2) (2) ··· H1 (·) H2 (·) (2) (2) H2N (·) ... H2N (·) (2) H2 (·) (2) −H1 (·) (2) H2 (·) ⎤ ⎥ ⎥ (2) −H2N −1(·) ⎥ ⎥ ··· (2) ··· H2N −1(·) (2) −H2N −1(·) 61 (2) H1 (·) ⎥ ⎥ ⎥ ⎥ ⎥(3.99) ⎥ ⎥ ⎥ ⎥ ⎥ ⎥ ⎦ H0 (·) with the argument (·) for the Hankel ... results and m...

Ngày tải lên: 14/09/2015, 14:12

... functions as being those of PPWG-III to Chapter Modeling for Multilayered Power- Ground Planes 99 enforcing Ez and Hz , and those of PPWG-I and II to enforcing Eφ and Hφ By III performing the testing ... coefficients for scattered fields are put to the L.H.S of (4.55) and all the remaining terms to the R.H.S: M3 M1 p=0 m=0 M3 M2 p=0 m=0 M3 M1 p=0 m=0 M3 M2 be,II m p=0 m=0...

Ngày tải lên: 14/09/2015, 14:12

... m t T t 0 ⎥ Tt ⎦ (5.53) ⎤ ⎥ Tt ⎦ (5. 54) Chapter Hybrid Modeling of Signal Traces in Power Distribution Network 5 .4 147 Modeling of Entire Signal Traces in Power Distribution Network As we discussed ... effects between them and the traces The dielectric material for all substrates is FR4 with a dielectric constant of 4. 4 and loss Chapter Hybrid Modeling of Sign...

Ngày tải lên: 14/09/2015, 14:12