直流功率调制对黑龙江电网功角稳定性的作用分析  

Study of Rotor Angle Stability of Heilongjiang Power Grid by HVDC Power Modulation

作　　者：张帆 韩民晓 刘晋 徐洪涛 边二曼 Zhang Fan;Han Minxiao;Liu Jin;Xu Hongtao;Bian Erman(North China Electric Power University Beijing 102206 China;State Grid Heilongjiang Electric Power Corporation Haerbin 150000 China)

机构地区：[1]新能源电力系统国家重点实验室(华北电力大学),北京102206 [2]国网黑龙江省电力有限公司,哈尔滨150000

出　　处：《电气工程学报》2018年第4期38-45,共8页Journal of Electrical Engineering

摘　　要：以黑龙江电网为研究对象，当南送吉林、辽宁电网的交流通道发生故障时，将导致原来流向吉林、辽宁的潮流沿哈南-华民方向汇人扎鲁特，增加了潮流通道的等效阻抗，给黑龙江电网带来功角稳定性问题。本文利用扎青直流的功率调制来改善黑龙江电网的功角稳定性，提出利用Prony分析法对直流调制器进行参数整定，讨论了调制增益的变化对系统稳定性的影响。研究结果对实际电网运行中功角稳定性的改善具有一定的参考价值。When fault occurs in AC channel which sent electric power from Heilongjiang to Jilin and Liaoning, the unbalance of power and the increase of transfer impedance will bring a great challenge to the rotor angle stability of the Heilongjiang grid. HVDC modulation has been considered to improve the rotor angle transient stability. The Prony method is used to tune the DC power modulator, and the influence of the variation of modulation gain on the stability of the system is also discussed. The study results are expected to be helpful for the operation of Heilongjiang power grid.

关 键 词：高压直流输电 黑龙江电网 直流功率调制 PRONY分析 功角稳定 

分 类 号：TM712[电气工程—电力系统及自动化]