电力弹簧稳态运行范围及越限失灵机理分析

发布时间：2018-03-09 21:27

本文选题：电力弹簧　切入点：稳态运行范围　出处：《电力系统自动化》2017年14期 　论文类型：期刊论文

【摘要】：在介绍电力弹簧的研究背景和基本原理的基础上,通过相量图法对电力弹簧稳态调节能力进行详细分析,得到电力弹簧稳态运行范围,同时分析电力弹簧越限失灵的机理,给出了网侧电压越限条件下的关键负载电压设定值优化计算方法。若网侧电压在稳态运行范围内波动,经电力弹簧调节,可使关键负载电压幅值稳定到标准值;若超出稳态运行范围,即发生越限,则受电力弹簧调节能力限制,关键负载电压稳定值会发生偏离,甚至会发生电力弹簧失灵情况。通过优化网侧电压越限情况下的关键负载电压设定值计算方法,考虑关键负载电压允许小范围波动,可以保证电力弹簧在网侧电压越限情况下依旧正常工作,从而扩大电力弹簧稳定运行范围。最后,通过仿真实验对分析结果进行了验证。
[Abstract]:On the basis of introducing the research background and basic principle of power spring, the steady-state regulating ability of power spring is analyzed in detail by phasor graph method, and the operating range of power spring steady-state is obtained, and the mechanism of power spring overstepping failure is analyzed at the same time. The optimal calculation method of the critical load voltage setting value under the condition of grid side voltage overstepping is given. If the grid side voltage fluctuates in the steady operation range, the amplitude of the critical load voltage can be stabilized to the standard value by the power spring adjustment. If it is beyond the range of steady operation, the limit will be exceeded, and the voltage stability of the critical load will deviate due to the limitation of the power spring's regulating ability. Even power spring failure will occur. By optimizing the calculation method of critical load voltage setting when the grid side voltage exceeds the limit, the critical load voltage can be allowed to fluctuate in a small range. It can ensure that the power spring can still work normally under the condition of the grid side voltage exceeding the limit, so as to expand the power spring's stable operation range. Finally, the analysis results are verified by simulation experiments.
【作者单位】：电力传输与功率变换控制教育部重点实验室(上海交通大学);先进输电技术国家重点实验室(全球能源互联网研究院);国网上海市电力公司科学研究院;
【基金】：国家重点研发计划资助项目(2016YFB0900504) 国家电网公司科技项目“基于电力弹簧的微电网新型运算模式原理、设计与控制技术研究”~~
【分类号】：TM712;TM732

【相似文献】