期刊文献+

考虑电压稳定约束的最优潮流 被引量:18

Optimal Power Flow Considering Voltage Stability Constraints
下载PDF
导出
摘要 采用指数负荷模型研究了有载调压变压器对系统最优潮流的影响。在阐述电压稳定性L指标的基础上,将L指标引入传统最优潮流中形成电压稳定约束的最优潮流,运用原-对偶内点法求解该模型。算例结果表明,该模型鲁棒性较好,能更加真实地反映系统实际运行情况。不同静态负荷模型对系统电压稳定性和经济性有一定的影响,系统电压稳定性的提高是以牺牲经济性为代价的,在考虑电压稳定性时,有载调压变压器的加入可以有效降低系统燃料费用,平抑系统有功出力和燃料费用的波动,将波动维持在一个较小的范围内。 By use of more precise exponential load model, the effect of on-load tap-changing transformer (OLTC) on optimal power flow (OPF) is analyzed. After expounding the L-index of voltage stability, this index is led into traditional OPF to form voltage stability constrained optimal power flow (VSCOPF), and primal-dual interior point method is used to solve this model. Applying this model to IEEE 30-bus system, obtained results show that the proposed model possesses better robustness and can reflect actual operation conditions of power system more factually. Different static load models greatly influence both voltage stability and economy of power system and the improvement of system voltage stability is at the expense of system economy. When voltage stability is taken into account, application of OLTC can effectively reduce the fuel cost of the system, abate the fluctuation of both active power output and fuel cost and confine the fluctuation in a smaller range.
作者 顾承红 艾芊
出处 《电网技术》 EI CSCD 北大核心 2006年第16期29-34,共6页 Power System Technology
基金 国家自然科学基金资助项目(50595412)~~
关键词 电力系统 最优潮流(OPF) 电压稳定 内点法 L指标 指数模型 power system optimal power flow(OPF) voltage stability interior point method L-index exponential model
  • 引文网络
  • 相关文献

参考文献25

二级参考文献237

共引文献558

同被引文献220

引证文献18

二级引证文献163

;
使用帮助 返回顶部