摘要
针对大型电力系统输电能力计算问题 ,提出了一种改进的 PV曲线求取方法 ,它较好地考虑了受电侧负荷增长方式与发电侧发电机功率调度方式。在追踪 PV曲线的过程中 ,改进的局部参数化方法被用于消除功率传输极限点附近潮流方程的病态现象。所提出的电压定步长下降控制思想提高了曲线的追踪效率 ,实现了自适应步长控制。 50
A modified PV curve tracing method is proposed in this paper for the calculation of power transfer capability of large-scale systems. This method can easily take into account the way of load changing in receiving areas and the mode of power dispatch among generators in sending areas. A local parameterization method is modified to trace the PV curve, which perfectly eliminates the illness of power flow equations near the power transfer limit. In addition, a simple method called constant step voltage decline is presented to implement the auto-adaptive step length control. The effectiveness of this modified method is testified by a 500-bus example system. This project is supported by National Key Basic Research Fund of China (No. G1998020303) and National Natural Science Foundation of China (No. 59777012).
出处
《电力系统自动化》
EI
CSCD
北大核心
2001年第2期9-12,44,共5页
Automation of Electric Power Systems
基金
国家重点基础研究专项经费资助! (G19980 2 0 30 3)
国家自然科学基金! (5 97770 12 )资助项目
关键词
电压稳定
输电能力
PV曲线
电力系统
潮流计算
Adaptive control systems
Busbars
Electric load management
Large scale systems
Voltage control
