摘要
电力系统负载变化下,储能变流器具有动态特性,导致总谐波失真(THD)值一直较高,对此,本文提出了基于直觉模糊S-粗决策模型的储能变流器双环控制方法。通过简化储能变流器的电路,建立传递函数,描述储能变流器动态特性,将动态输出电压输入到直觉模糊S-粗决策模型中,迭代求解最优控制方案,进而设计电流内环、电压外环的双环控制策略。实验测试表明,该方法在实践应用中表现出了较低的THD值,储能变流器运行稳定性较好,具有良好的应用前景。
Under load changes in the power system,energy storage inverters have dynamic characteristics,resulting in consistently high THD values.To address this,this paper proposed a dual loop control of energy storage inverter based on intuitionistic fuzzy S-rough decision model.Simplified the circuit of the energy storage inverter,described the dynamic characteristics of the energy storage inverter through a transfer function,input the dynamic output voltage into the intuitionistic fuzzy Srough decision model,iteratively solve the optimal control scheme,and then design a dual loop control strategy of current inner loop and voltage outer loop.Experimental tests have shown that this method exhibits low THD values in practical applications,with good stability in the operation of energy storage inverters and promising application prospects.
作者
于重阳
YU Chongyang(Longyuan Eastern-Inner Mongolia New Energy Co.,Ltd.,Chifeng 024000,China)
出处
《大电机技术》
2025年第4期94-98,共5页
Large Electric Machine and Hydraulic Turbine
关键词
变流器控制
储能变流器
双环控制
直觉模糊S-粗决策模型
inverter control
energy storage inverters
dual loop control
intuitive fuzzy S-rough decision model
