高比例新能源电力系统频率响应稳定性的电解槽控制策略  

Electrolytic cell control strategy for frequency response stability of high ratio new energy power systems

作　　者：薛易 艾鑫 Xue Yi;Ai Xin(School of Electrical&Control Engineering,Heilongjiang University of Science&Technology,Harbin 150022,China)

机构地区：[1]黑龙江科技大学电气与控制工程学院,哈尔滨150022

出　　处：《黑龙江科技大学学报》2025年第1期147-152,共6页Journal of Heilongjiang University of Science And Technology

基　　金：黑龙江省省属高等学校基本科研业务费项目(2021-KYYWF-1469)。

摘　　要：针对高比例新能源电力系统在遇到不平衡功率干扰后,可能会出现较大的频率变化率和稳态误差的问题,提出了一种基于大容量并网电解槽组的有序功率调节控制策略。在发电不足的个别时段或是电网接入大负荷时,使负荷侧电解槽根据电网频率的变化自适应调整消耗功率,达到源荷平衡的目的,提升高比例新能源电力系统的频率稳定性,搭建IEEE9节点系统验证其可行性。结果表明,采用该控制策略的电解槽使电力系统频率降到最低点的时间提前了0.29 s,最低频率值上升0.24 Hz,减小了频率变化率的绝对值,稳态误差减小了0.20 Hz,高比例新能源电力系统的频率稳定性得到提升,验证了该控制策略的有效性。This paper is an attempt to address the large frequency change rate and steady-state error after encountering unbalanced power interference in high-proportion new energy power system,and proposes an orderly power regulation control strategy based on a large capacity grid-connected electrolyzer group.The study is enabled by the load side electrolzer adaptively adjusting the power consumption according to the change of the power grid frequency to achieves the purpose of source and charge balance for improving the frequency stability of high proportion new energy power systems,when the power generation is insufficient in individual periods or the power grid is connected to a large load;and setting up IEEE9-node system to verify its feasibility.The results show that the electrolytic cell with this control strategy can shorten the time of 29 s when the power system frequency drops to the lowest point,and the lowest frequency value increases by 0.24 Hz,as which the absolute value of the frequency change rate is reduced,and the steady-state error is reduced by 0.20 Hz,which improves the frequency stability of high proportion new energy power systems,and verifies the effectiveness of this control strategy.

关 键 词：高比例新能源电力系统 电解槽 源荷平衡 

分 类 号：TK91[动力工程及工程热物理]