大电网暂态稳定概率评估方法及风险指标研究  

Transient stability probability assessment and risk indexes for large scale power systems

作　　者：黄龙祥[1] 苗世洪[1] 赵峰[1] 裘微江[2] 侯俊贤[2] 

机构地区：[1]华中科技大学强电磁工程与新技术国家重点实验室,湖北武汉430074 [2]中国电力科学研究院,北京100192

出　　处：《电力自动化设备》2013年第11期105-110,共6页Electric Power Automation Equipment

基　　金：国家自然科学基金资助项目(51377068);国家高技术研究发展计划(863计划)资助项目(2011AA05A119);国家电网公司大电网重大专项资助项目(SGCC-MPLG001(026)-2012)~~

摘　　要：考虑到传统确定性分析方法的局限性和现行多能源接入电力系统的复杂度,从风险角度出发,计及多重不确定因素建立元件和系统故障概率模型。基于蒙特卡洛模拟和时域仿真进行系统暂态稳定概率评估,在构建包含功角、电压、潮流等在内的单次抽样风险指标体系的同时,提出一种有效量化系统应对暂态扰动能力的暂态稳定全局性概率和风险裕度指标。新英格兰10机39节点等系统的算例评估结果验证了所提算法的可行性。Due to the limitations of traditional deterministic analysis and the complexity of power system integration for multiple existing power sources,a probability model considering multiple uncertainties is built from the perspective of risk for the faults of elements and system.The probability of system transient stability is assessed based on Monte Carlo simulation and time-domain simulation.While a risk index system is built for the single sampling containing power angle,voltage,power flow,etc.,an overall probability of transient stability and a risk margin index are proposed,which can effectively quantify the ability of system coping with the transient disturbance.Results of assessment for New England 10-generator 39-bus system verify the feasibility of the proposed method.

关 键 词：电力系统 暂态稳定 概率模拟 风险 蒙特卡洛法 指标 抽样 

分 类 号：TM711[电气工程—电力系统及自动化]