摘要
为向电力需求侧管理的实施提供理论参考,采用PSASP仿真软件计算了系统中的7节点算例,分析了各节点的电压功率灵敏度系数,基于灵敏度系数较高的节点电压易受负荷波动的影响、在负荷大量增加的时间段较易失稳的原则确定薄弱节点。结果表明,针对薄弱节点的灵敏度系数可在电力需求侧管理中确定无功补偿装置的安装位置,并可实现当负荷高峰来临前对薄弱节点的重点监测,或作为紧急态势下切除影响电网运行稳定的负荷节点的理论依据,从而改善电网运行能力。
In order to provide theoretical reference for demand side management,simulation software PSASP is applied to calculate 7-node example and the sensitivity coefficients of each node for voltage-power are analyzed.Based on influence of load fluctuation on node voltage with large sensitivity coefficient,weak nodes are determined by considering the unstable period for load increasing.The results show that demand side management for the weak node can determine installation location of reactive power compensation equipment,and focus on monitoring weak node before the advent of peak load,or provide theory evidence for removal of load bus influencing the safety operation of grid under emergency situation.Thus,it improves the capacity of grid operation.
出处
《水电能源科学》
北大核心
2011年第1期162-163,178,共3页
Water Resources and Power
基金
三峡大学青年科学基金资助项目(KJ2008B074)
关键词
需求侧管理
电压稳定
薄弱节点
灵敏度
负荷管理
demand side management
voltage stability
critical point
sensitivity
load management
