| 引用本文: | 周建华,袁 越.含风电场电力系统的Cornish-Fisher级数概率潮流计算[J].电力自动化设备,2011,31(12): |
| ZHOU Jianhua,YUAN Yue.Probabilistic load flow calculation based on Cornish-Fisher expansion for power system with wind farm[J].Electric Power Automation Equipment,2011,31(12): |
|
| 摘要: |
| 利用基于Cornish-Fisher级数展开的方法研究了含风电场电力系统的概率潮流分布问题。该方法以半不变量为纽带，构建了待求变量和已知变量之间的直接耦合关系；以确定性的潮流计算为出发点，得到了具有较高精度的概率潮流分布结果。仿真计算表明：与基于蒙特卡洛仿真抽样法的概率潮流计算方法相比，在保证计算结果精度的前提下，该方法能有效提高计算速度。 |
| 关键词: 电力系统 风电 并网 概率潮流 计算 蒙特卡洛仿真 Cornish-Fisher级数展开 输电线路 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金资助项目（51077041） |
|
| Probabilistic load flow calculation based on Cornish-Fisher expansion for power system with wind farm |
|
ZHOU Jianhua, YUAN Yue
|
|
College of Energy and Electrical Engineering，Hohai University，Nanjing 210098，China
|
| Abstract: |
| The probabilistic load flow distribution of power system with wind farms is calculated based on Cornish-Fisher expansion，which constructs the immediate relationship between unknown and known variables with the cumulant as a link and takes a deterministic load flow calculation as the starting point to generate the probabilistic load flow distribution function with high accuracy. Simulative results show that，compared with the Monte Carlo simulation sampling method，the proposed method enhances significantly the computational speed while maintains the computational accuracy. |
| Key words: electric power systems wind power grid connection probabilistic load flow calculations Monte Carlo simulation Cornish-Fisher expansion electric lines |
