用于间歇性电源高渗透电网规划的安全性评估方法  

A Security Assessment Method for Power Grid Planning Under High Penetration of Variable Generation

作　　者：杨海涛[1] 吴国旸[1] 陈西颖[1] 贺庆[1] 宋新立[1] 

机构地区：[1]中国电力科学研究院,北京市100192

出　　处：《电力系统自动化》2012年第24期15-20,共6页Automation of Electric Power Systems

基　　金：国家高技术研究发展计划(863计划)资助项目(2011AA05A105)~~

摘　　要：讨论了电力系统稳定性与安全性的从属关系,指出电网静态安全约束、暂态稳定约束和全过程安全评估宜分别在电网规划的不同步骤中考虑,提出了间歇性电源高渗透电网规划方案安全性评估流程。指出电力系统连锁反应事件部分过程具有开放的复杂巨系统的一些特性,其中一部分过程在仿真中难以准确模拟,需进行简化处理,而另一部分过程的前后事件之间具有强因果关系,这部分过程可采用改进的仿真软件进行模拟。提出了计及故障前发电系统状态的电网全过程风险评估计算方法,使用该方法,可将稳定设施费用和停电风险损失计入电网规划方案的综合年费用中,对方案进行安全性和经济性综合比较选择。Following a discussion of the affiliation of stability and security, it is pointed out that the static security constraints, transient stability constraints and whole process security assessment should be dealt with under different procedures in power grid planning. The procedure of security assessment for power grid planning under high penetration of variable generation is presented. It is pointed out that part of the courses of the cascading events is typical of the open complex giant system and should be simplified since it cannot be exactly simulated. The other part of the courses is with strong cause and effect relationship between the preceding and succeeding events and can be simulated by improved simulation software. By taking into account the pre-fault states of the generation system, the whole process risk assessing method is presented. With the method, the costs of stabilizing facilities and the power cut losses will be included in the composite annual costs for comparing and choosing the planning schemes. This work is supported by National High Technology Research and Development Program of China （863 Program） （No. 2011AA05A105）.

关 键 词：电网规划 间歇性电源 高渗透率 安全性评估 连锁反应 复杂系统 

分 类 号：TM715[电气工程—电力系统及自动化]