不同目标的励磁系统调差系数优化整定差异分析  

Different Target Optimization Setting of Difference Adjustment Coefficient of Generator Excitation System

作　　者：周毅博[1] 安军[1] 徐兴伟[2] 张师[1] 李铭[1] 

机构地区：[1]东北电力大学电气工程学院,吉林省吉林市132012 [2]国家电网公司东北分部,辽宁省沈阳市110181

出　　处：《陕西电力》2014年第11期82-85,93,共5页Shanxi Electric Power

摘　　要：发电机励磁系统调差系数优化整定可以改善区域电网的电压水平。目前,调差系数优化整定的目标不一。以某一实际电网为对象,基于该电网的历史运行数据,分析不同目标函数下调差系数优化结果的差异,通过比较不同调差系数优化整定值对电网运行品质的影响,得到了不同优化目标,不同整定周期的调差系数优化结果。结果表明,以月为整定周期,设置合理的调差系数,既能改善电网电压波动水平,同时可以降低网损,带来可观的经济效益,以网损最小和电压波动标准差最小为目标的调差系数优化结果相近。The optimization setting with difference adjustment coefficient of generator excitation system can improve the voltage level of regional power grid.At present,the optimization setting target for the difference adjustment coefficient of generator excitation system is not unified.Taking an actual grid as an example,the paper analyzes the difference among optimization results from different optimization target with difference coefficient based on the grid historical data.Through the analysis and comparison on the effect of the different adjustment coefficient optimization on power grid operation quality,the different optimization goals and different adjustment coefficient optimization results are obtained.The results show that the active power loss and the voltage fluctuation amplitude can be reduced by setting the suitable difference coefficient every one month.The optimized results with the difference coefficients of both least network loss and voltage standard deviation are similar.

关 键 词：励磁系统调差系数 无功优化 电压控制 

分 类 号：TM713[电气工程—电力系统及自动化]