中国电力2018，Vol.51Issue(6)：107-112,6.DOI:10.11930/j.issn.1004-9649.201801020
最优乘子法及其在交直流电网潮流计算中的应用
Optimal Multiplier Method and its Application in Power Flow Calculation for AC/DC Power Grids
方朝雄1
作者信息
- 1. 国网福建省电力有限公司经济技术研究院,福建福州 350003
- 折叠
摘要
Abstract
The optimal multiplier method has been widely applied to practical power system problems, due to its high convergence reliability, the superior performance in dealing with ill-conditioned power flow, and the ability to find the least square solution for infeasible power flow equations. In this paper, the steady-state equivalent model of voltage source converters (VSCs) in the rectangular coordinate system is established, transforming the power flow calculation problem of AC/DC power grids into cracking a set of quadratic equations, which decouples the model and solution methodology of power flow calculation, and reduces the complexity of the corresponding computer programs. To deal with non-convergence issue in large-scale AC/DC power flow calculation, a unified iteration model is proposed to improve the convergence performance considering multi-slack generators and multi-generator coordinated voltage regulation. Simulation results of Fujian power grid with the Xiamen VSC-HVDC project validate the effectiveness of the proposed models and methods.关键词
电压源换流器/交直流电网/潮流计算/二次方程组/最优乘子法Key words
voltage source converter/AC/DC power grid/power flow calculation/quadratic equations/optimal multiplier method分类
信息技术与安全科学引用本文复制引用
方朝雄..最优乘子法及其在交直流电网潮流计算中的应用[J].中国电力,2018,51(6):107-112,6.
