送端弱系统对特高压直流工程调试和运行的影响

发布时间：2018-03-31 08:37

本文选题：特高压直流输电工程　切入点：送端弱系统　出处：《中国电力》2014年10期

【摘要】：特高压直流系统输送容量大、无功消耗大、控制复杂,而弱送端系统网架和电源构成简单,直流故障或扰动给电网运行控制带来诸多问题,分析特高压直流工程弱送端系统在电网安全稳定运行、直流启动与功率升降、过电压、机网协调等方面诸多问题,给出了相应的控制策略,并结合复奉特高压直流工程系统调试情况提出了弱送端系统特高压直流工程调试项目优化、电网运行方式和稳定控制措施、电压/无功控制、直流线路保护配置等方面需注意的问题及相应控制措施,同时分析了在特高压直流工程弱送端系统运行时的一些其他现象,文中结论对特高压直流工程规划、建设和运行具有一定的指导意义。
[Abstract]:The UHV DC system has the advantages of large transportation capacity, large reactive power consumption, complex control, and simple grid structure and power supply structure of the weak terminal system. DC fault or disturbance brings many problems to the operation and control of the power network. This paper analyzes the problems of the weak terminal system of UHVDC project in the safe and stable operation of the power grid, DC start-up and power rise and fall, overvoltage, coordination of the power network and so on, and gives the corresponding control strategy. Combined with the debugging of HVDC system in Fufeng UHVDC project, the optimization of UHV DC project debugging project, the operation mode and stable control measures of power grid, the voltage / reactive power control, and the voltage / reactive power control are put forward. The problems needing attention in the protection configuration of DC line and the corresponding control measures are discussed. At the same time, some other phenomena in the operation of the weak terminal system of UHVDC project are analyzed, and the conclusion is drawn that the UHV DC project is planned. Construction and operation have certain guiding significance.
【作者单位】：华北电力大学电气与电子工程学院;中国电力科学研究院;
【分类号】：TM721.1

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