基于发电机功率分配因子的静态电压稳定预防控制  

Preventive Control for Static Voltage Stability Based on Generation Power Distribution Factor

作　　者：钟浩[1] 吴政球[1] 张小兵[1] 潘力强[2] 张文磊[2] 刘永刚[2] 

机构地区：[1]湖南大学电气与信息工程学院,湖南省长沙市410082 [2]湖南电力公司,湖南省长沙市410007

出　　处：《中国电机工程学报》2011年第34期150-155,共6页Proceedings of the CSEE

基　　金：湖南省科技厅重点项目(2008FJ2004)~~

摘　　要：针对静态电压稳定预防控制实用性的问题,提出一种在线静态电压稳定预防控制算法。该算法引入未来时刻发电机功率分配因子作为电压稳定裕度的控制变量,利用电压稳定裕度对各类控制参数的灵敏度信息,通过集中调度和预选参与调度集等策略,形成预防控制所需要的线性规划模型,给出预防电压失稳的调度方案。算法的优点是可将严重故障和失稳故障放在统一的模型中求解;引入未来时刻发电机功率分配因子作为电压稳定裕度的控制变量,可有效地减少其他控制参数的调整量。对湖南实际电网750节点系统的试验,证明了所提方法的有效性和实用性。In allusion to the practical problems for preventive control,an on-line preventive control algorithm for static voltage stability in large-scale power system was presented.The generation power distribution factor for coming future was introduced as control parameters for static voltage stability margin,based on sensitivity information of loading margin with respect to control parameters,the centralize scheduling strategy and the candidate control group strategy were used to establish a linear programming model for preventive control,and then the control scheme to avoid voltage instability was given.The feature of this algorithm is that serious contingencies and unstable contingencies can be solved in the same mathematical model;The adjusted amount of other control parameters will be reduced through the application of generation power distribution factors in the future.Tests with a practical 750-bus power system indicate that the proposed method is effective and applicable.

关 键 词：线性规划 静态电压稳定 预防控制 分配因子 失稳故障 

分 类 号：TM76[电气工程—电力系统及自动化]