期刊论文

Energy Optimal Control Strategy of Power Conversion System under Unbalanced Grid Voltage

中文

湖南大学学报(自然科学版)

1674-2974

2023

50

04

165-175

10.16339/j.cnki.hdxbzkb.2023226

国家自然科学基金资助项目（51977014）~~；

本校为第一机构

针对电压不平衡时储能变流器（Power Conversion System, PCS）出现网侧电流波形畸变严重且峰值过大等问题，提出了电网电压不平衡下储能变流器能量最优控制策略.该策略通过控制目标参数k、电网电压不平衡度与瞬时功率波动、网侧电流不平衡度和网侧电流峰值的关系图深入分析了参数k、电网电压不平衡度对系统能量运行的影响，并在此基础上侧重抑制电流幅值及抑制功率波动两个控制目标，加入寻优算法，提出k参数仅在[-1,0]内选择的电流限幅储能变流器能量最优控制策略.仿真实验结果表明：该策略能通过k参数和电流限幅策略更加快速有效地将电流峰值限制在最大允许峰值，并且进一步减小功率波动，提...

Aiming at the problems of serious distortion and excessive peak value of grid-side current waveform in power conversion systems(PCS)under unbalanced voltage,this paper proposes an energy optimal control strategy for PCS under unbalanced grid voltage.The control strategy...MORE Aiming at the problems of serious distortion and excessive peak value of grid-side current waveform in power conversion systems(PCS)under unbalanced voltage,this paper proposes an energy optimal control strategy for PCS under unbalanced grid voltage.The control strategy deeply analyzes the influence of parameter k and gr...