Frequency adaptive proportional + multi-resonant output voltage control strategy for parallel operating distributed generation units

2016 ◽  
Author(s):  
Abdelhakim Saim ◽  
Rabah Mellah ◽  
Azeddine Houari ◽  
Ali Djerioui ◽  
Mohamed Machmoum
Keyword(s):  
Distributed Generation ◽  
Control Strategy ◽  
Output Voltage ◽  
Voltage Control ◽  
Voltage Control Strategy

scholarly journals Distributed Imitation-Orientated Deep Reinforcement Learning Method for Optimal PEMFC Output Voltage Control

2021 ◽  
Vol 9 ◽  
Author(s):  
Jiawen Li ◽  
Yaping Li ◽  
Tao Yu
Keyword(s):  
Reinforcement Learning ◽  
Control Strategy ◽  
Output Voltage ◽  
Proton Exchange Membrane ◽  
Control Method ◽  
Voltage Control ◽  
Proton Exchange ◽  
Gradient Algorithm ◽  
Voltage Control Strategy ◽  
The Stability

In order to improve the stability of proton exchange membrane fuel cell (PEMFC) output voltage, a data-driven output voltage control strategy based on regulation of the duty cycle of the DC-DC converter is proposed in this paper. In detail, an imitation-oriented twin delay deep deterministic (IO-TD3) policy gradient algorithm which offers a more robust voltage control strategy is demonstrated. This proposed output voltage control method is a distributed deep reinforcement learning training framework, the design of which is guided by the pedagogic concept of imitation learning. The effectiveness of the proposed control strategy is experimentally demonstrated.

scholarly journals A Reactive Power-Voltage Control Strategy of an AC Microgrid Based on Adaptive Virtual Impedance

Energies ◽  
2019 ◽  
Vol 12 (16) ◽  
pp. 3057
Author(s):  
Yao Liu ◽  
Lin Guan ◽  
Fang Guo ◽  
Jianping Zheng ◽  
Jianfu Chen ◽  
...  
Keyword(s):  
Distributed Generation ◽  
Control Strategy ◽  
Reactive Power ◽  
Reference Value ◽  
Voltage Control ◽  
Power Sharing ◽  
Voltage Reference ◽  
Voltage Control Strategy ◽  
Voltage Recovery ◽  
Virtual Impedance

As an effective carrier of distributed generation, a microgrid is an effective way to ensure that distributed power can be reasonably utilized. However, due to the property of line impedance and other factors in a microgrid, reactive power supplied by distributed generation units cannot be shared rationally. To efficiently improve reactive power sharing, this paper proposes a reactive power-voltage control strategy based on adaptive virtual impedance. This method changes the voltage reference value by adding an adaptive term based on the traditional virtual impedance. Meanwhile, a voltage recovery mechanism was used to compensate the decline of distributed generation (DG) output voltage in the process. MATLAB/Simulink simulations and experimental results show that the proposed controller can effectively improve the steady state performance of the active and reactive power sharing. Finally, the feasibility and effectiveness of the proposed control strategy were verified.

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