摘要
近年来,新能源的并网发电量越来越大,在这一背景下,需要通过技术措施提高电网的稳定性和电能质量。三电平静止无功补偿器对以上目标的实现具有重要作用,而传统的电压电流双闭环脉冲量输入控制策略存在一定的缺陷,不能适应大功率场景。文章重点分析了模型预测电流控制策略中的多步预测控制算法,将其应用于三电平静止无功补偿器。经过仿真,该控制策略显著降低了电网电流总谐波失真和开关频率,实用性更强。
In recent years,the grid connected power generation of new energy has been increasing.In this context,it is necessary to improve the stability and power quality of the power grid through technical measures.The three-level static reactive power compensator plays an important role in achieving the above goals.The traditional voltage and current dual closed-loop pulse input control strategy has certain shortcomings and cannot adapt to high-power scenarios.The research process focuses on analyzing the multi-step predictive control algorithm in the model predictive current control strategy and applying it to three-level static reactive power compensators.After simulation,this control strategy significantly reduces the total harmonic distortion and switching frequency of the power grid current,making it more practical.
作者
宋元军
强盛
SONG Yuanjun;QIANG Sheng
出处
《电力系统装备》
2024年第9期69-71,共3页
Electric Power System Equipment
关键词
三电平静止无功补偿器
控制策略
仿真分析
three-level static reactive power compensator
control strategy
simulation analysis
