云南电网考虑负荷近区平衡的节能优化调度动态稳定性分析  

Energy-saving Optimized Dispatching Dynamic Stability Analysis Considering Load Balanced Nearby in Yunnan Power Grid

作　　者：陈聪[1,2] 陈堃[3] 葛志超[1] 李骏[1] 郑涛[1] 

机构地区：[1]三峡大学电气与新能源学院,湖北宜昌443002 [2]云南省电力设计院,云南昆明650011 [3]武汉大学电气工程学院,湖北武汉430072

出　　处：《陕西电力》2014年第6期55-59,共5页Shanxi Electric Power

基　　金：国家自然科学基金项目资助(60971028);中央高校基本科研业务费专项资金资助项目(201120702020014)

摘　　要：以云南电网2013年汛期丰大运行方式作为研究对象,在只考虑节能降耗的开机方式下进行了电网动态稳定分析,发现该运行方式下存在多处弱阻尼的内部电网低频振荡风险。结合系统潮流分布,在节能调度的基础之上提出了一种适当利用火电机组平衡近区负荷的优化调度方法,并在该方法下对电网动态稳定性进行分析。结果表明,考虑负荷近区平衡的节能优化调度新方法能有效提升云南电网的阻尼水平,降低电网发生低频振荡的风险。Taking summer peak load operation mode of Yunnan power grid in 2013 as the research object,the dynamic stability of power grid considering the energy saving and consumption reduction is analyzed.It is found that there are several risks of weaklydamp low-frequency oscillations internal grid under this operation mode.Combining with the load flow distribution of system,an optimal dispatching method of properly using thermal power to balance the nearby load is proposed on the basis of energy-saving generation dispatching.The dynamic stability of power grid by using this method is analyzed.The results show that the new method of energy-saving optimal dispatching which considering nearby load balance can promote the level of damp in Yunnan power grid and reduce the risk of low frequency oscillation of power grid.

关 键 词：节能优化调度 动态稳定 负荷近区平衡 低频振荡 

分 类 号：TM73[电气工程—电力系统及自动化]