Reactive power compensation for grid byPacked-U-Cell inverter using model predictive control strategy with intelligent multi-objective scheme

2021 ◽  
pp. 1-14
Author(s):  
Mohd. Anas Anees ◽  
Mohammad ◽  
Kaif Ahmed Lodi ◽  
Mahetab Alam ◽  
Ripon K. Chakrabortty ◽  
...  

This paper proposes a model predictive control strategy for 15 level Packed-U-Cell inverter that satisfies multiple-objectives of low current total harmonic distortion (THD), capacitor voltage balances, supply of desired active and reactive power, as well as lower switching and lower voltage stresses on the switching devices. The proposed device performs well under dynamic conditions and can successfully track the current command during step changes in the power demand. A detailed modeling is presented and discussed. MATLAB/Simulink is used for obtaining the simulation results, and the results are validated in the real time by using a hardware-in-the-loop (HIL) Typhoon 402 real-time emulator.

2014 ◽  
Vol 960-961 ◽  
pp. 1356-1360 ◽  
Author(s):  
Yu Zhou ◽  
Zhi Yong Dai ◽  
Qiang Gang Wang ◽  
Ling Ye ◽  
Nian Cheng Zhou

This paper studies the instantaneous output power characteristics of photovoltaic inverters and its flexible power control strategy under unbalanced grid faults. Then the optimal parameters model of the power control is established with minimum integrated fluctuation amplitude of the active and reactive power as a goal when the constraint of the output current harmonic distortion of photovoltaic inverters is taken into account. Finally, the optimal power control of photovoltaic inverters based on dead-beat current tracking is realized and the feasibility of the proposed control strategy is verified with the power system transient software PSCAD/EMTDC.


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