Improved Voltage-Vector Sequences on Dead-Beat Predictive Direct Power Control of Reversible Three-Phase Grid-Connected Voltage-Source Converters

2013 ◽  
Vol 28 (1) ◽  
pp. 254-267 ◽  
Author(s):  
Jiabing Hu ◽  
Z. Q. Zhu
Keyword(s):  
Power Control ◽  
Voltage Source ◽  
Voltage Source Converters ◽  
Direct Power ◽  
Direct Power Control ◽  
Voltage Vector ◽  
Three Phase ◽  
Vector Sequences

Direct Power Controlled Three Phase Boost Type PWM Rectifier Based on Novel Switching Vector Table

2011 ◽  
Vol 308-310 ◽  
pp. 1269-1272
Author(s):  
Guang Ye Li ◽  
Jian Ru Wan ◽  
Ming Shui Li
Keyword(s):  
Power Control ◽  
Reactive Power ◽  
Active Power ◽  
Switching Frequency ◽  
Pwm Rectifier ◽  
Direct Power ◽  
Power Fluctuation ◽  
Direct Power Control ◽  
Voltage Vector ◽  
Three Phase

The reactive power is out of control near the fundamental voltage vector in traditional direct power control system, which leads to the current distortion at AC side and the voltage fluctuation at DC side. The mechanisms of the instantaneous active power and the reactive power are analyzed based on the instantaneous power mathematical model of the PWM rectifier. A new direct power control strategy is researched based on novel sector division and novel switching table. This method not only has the advantage of rapid regulation for active power, but also can restrain reactive power fluctuation and reduce switching frequency. Simulative and experimental results verify its feasibility and effectiveness.

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