新能源并网系统引发的复杂振荡问题及其对策研究  

Study on Complex Oscillation Problems Caused by Grid Connection Systems of New Energy Sources and Countermeasures

作　　者：马超[1] 张敏[1] MA Chao;ZHANG Min(NARI Technology Co.,Ltd.,Nanjing 210000,China)

机构地区：[1]国电南瑞科技股份有限公司,江苏南京210000

出　　处：《电工技术》2024年第9期51-53,共3页Electric Engineering

摘　　要：受电力电子变流器的交互作用等因素影响,新能源并网系统存在复杂的振荡问题,因此分析了新能源并网系统引发的复杂振荡问题,并进行对策研究。结合振荡机制,分析了新能源并网系统引发的振荡问题主要表现形式,结合分析结果,将保持新能源并网系统稳定的前提——具有稳定的流形作为核心,构建合理的阻尼控制器,实现对振荡的抑制。在测试结果中,设计抑制对策下对应的有功功率振荡幅度最小,发生振荡的次数也最少,与对照组相比具有明显优势。Affected by the interaction of power electronic converters and other factors,there exist complex oscillation problems in grid connection system of new energy sources.Combined with the oscillation mechanism,the main manifestations of the oscillation problem caused by grid connection systems of new energy,and the analysis results are combined to maintain the stability of the new energy grid-connected system,which is to have a stable manifold as the core,and a reasonable damping controller is constructed to realize the suppression of the oscillation.In the test results,the corresponding active power oscillation amplitude is the lowest,and the number of oscillations is the smallest,which has obvious advantages compared with the control group.

关 键 词：新能源并网系统 振荡 流形 阻尼控制器 振荡抑制 

分 类 号：TU262[建筑科学—建筑设计及理论]