基于电力系统稳定性及潮流分布相关问题分析

随着国民经济的飞速发展,各种新型能源的接入并网,电力系统与各种新型能源的不断互联,对应各种新型继电保护装置的不断更新,常规潮流计算将极易出现无解、有的求解出现死循环及求解结果出现不符合实际情况,当电力系统出现负荷节点电压越限或者支路有功潮流越限时,会威胁到电力系统的静态安全,需要及时采取校正控制措施消除越限现象。电力系统规模日趋复杂化,网络结构不合理等原因而造成的潮流分布不合理的问题变得越来越突出,对这些不合理的潮流进行控制的要求也变得越来越急迫。

With the rapid development of national economy, the connection of all kinds of new energy sources, the continuous interconnection between power system and all kinds of new energy sources, and accordingly the constant renewal of various new relay protection devices, the conventional power flow calculation will easily have no solution, and some solutions be involved in dead cycle or the solution results will be inconsistent with the actual situation. When the voltage of load node in power system exceeds the limit or the branch active power flow exceeds the limit, the calculation results will not accord with the actual situation, which will threaten the static security of power system. Therefore, it is necessary to take timely corrective control measures to eliminate the phenomenon of over-limit, for the scale of power system is becoming more and more complex, the power flow distribution caused by unreasonable network structure and other reasons become more and more prominent, and the requirements for the control of these unreasonable power flow become more and more urgent.