ICGST- ACSE Journal

ACSE
 Volume (6), Issue (4) ICGST
 
Novel Direct Power Control for Compensating Voltage Unbalance and Load Fluctuations in PWM Rectifiers
 
S. R. HADIAN-AMREI  and  H. Iranmanesh
 
Nuclear Science & Technology Research Institute (NSTRI)
Nuclear Science Research School, Tehran, P.O.BOX:11365-3486, Iran

Abstract:

The DPC (Direct Power Control) strategy was intensively utilized and investigated on grid-connected PWM (Pulse Width Modulation) bi-directional rectifiers. Particularly, the VF-DPC (Virtual Flux oriented DPC) that grid-side voltage transducers and hysteresis band controllers are replaced by virtual flux estimators and PWM modulator; attracts more interests due to its robustness, simple implementation, decoupled active and reactive power control, etc. Nevertheless, for employing the active filtering (AF) capability of PWM rectifier under large line voltage unbalance and harmonic distortion, some complicated techniques along with precise and fast ADC converters should be used. In this paper, a novel control strategy is proposed based on good specifications of V-DPC (Voltage oriented DPC) with compensation and reconstruction of line voltages in order to improve the current waveform under distorted and unbalanced line voltage conditions even with normal precision and speed on-chip ADC of general purpose DSP or microcontroller devices, and experimental results are presented to validate the proposed strategy.

Keywords:  Direct Power Control, Virtual Flux, Voltage Unbalance, PWM rectifier.

(Full Paper, 644 KB)

Biographies:

Seyed Reza Hadian Amrei, was born in Sari, Mazandaran province, Iran on August 16, 1966. He received B.E. (Electronics) degree in 1989 from Tehran University, Tehran, Iran and M. Sc. (Biomedical Engineer) degree in 2000 from Amir Kabir University, Tehran, Iran. From 1990 to 2002 he worked as Expert and Research worker in Electronics department, National Iranian Research Center, Tehran, Iran. He received the Ph.D. degree in Electrical Engineering in 2006 at Harbin Institute of Technology, Harbin, China. He is member of various professional societies of IEEE. Presently he is working at Electronics Department at AEOI, Iran. His research areas include Grid-connected VSC, Harmonics and Interharmonics in grid-connected VSI, Passive and active filtering for grid-connected converters, Power electronic converters, Sliding mode and non-linear control strategies. His works have been published in international journals and conference including IEEE.

Hamid Iranmanesh, was born in Tehran, Iran on April 14, 1980. He received B.E. (Electrical) degree in 2002 from Noushirvani Institute of Technology University of Mazandaran, Iran and M. Sc. (Control) degree in 2005 from University of Kerman (SBUK), Iran. Presently he is working at Electronics Department at AEOI, Iran. His areas of interest are power system optimization, Power electronics, Fuzzy systems, Artificial intelligence. He has authored and co-authored more than 5 technical papers in the international journal and conferences.

BibTex:

@ARTICLE{P1110639001,

AUTHOR = { S.R.HADIAN-AMREI and H.Iranmanesh },

TITLE = {Novel Direct Power Control for Compensating Voltage Unbalance and Load Fluctuations in PWM Rectifiers },

JOURNAL = {ICGST International Journal on Automatic Control and Systems Engineering, ACSE},

YEAR = {2006},

VOLUME = {06},

ISSUE = {IV},

PAGES={39--45}

}

(Full Paper, 644 KB)