支路潮流越限控制的虚拟支路法

MIAO Fengxian; BAI Xuefeng; GUO Zhizhong

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支路潮流越限控制的虚拟支路法

更新时间：2025-08-13

- 支路潮流越限控制的虚拟支路法
- Automation of Electric Power Systems Vol. 33, Issue 14, Pages: 32-36(2009)
- 作者机构：
  
  哈尔滨工业大学电气工程及自动化学院,黑龙江省,哈尔滨市,150001
- 作者简介：
- 基金信息：
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- Published：2009
- 稿件说明：
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MIAO Fengxian, BAI Xuefeng, GUO Zhizhong. [J]. Automation of electric power systems, 2009, 33(14): 32-36.
DOI：

MIAO Fengxian, BAI Xuefeng, GUO Zhizhong. [J]. Automation of electric power systems, 2009, 33(14): 32-36. DOI：

摘要

为解决支路潮流越限问题，提出了支路潮流越限控制的虚拟支路法。通过对潮流越限支路并联虚拟支路法，使原潮流越限支路的电流降低到目标电流水平。虚拟支路导纳参数由目标分流系数、潮流越限支路导纳及戴维南等效阻抗共同确定。基于置换定理，将虚拟支路用含参数的虚拟功率源置换，将虚拟支路的切除问题转化为虚拟支路两端点注入功率的增长问题。根据支路视在功率对节点功率的灵敏度，逐步计算最小代价的控制方案。IEEE算例仿真显示该方法可将越限支路电流降低到目标电流水平，验证了其可行性和有效性。

Abstract

A virtual branch control method is proposed to solve the branch power flow off-limit problem. By adding a shunt virtual branch to the branch experiencing branch power flow off-limit， the original off-limit current of the branch can be reduced to a target level of branch current. The admittance of the virtual branch can be obtained by target shunting coefficient， Thevenin's equivalent impedance and admittance of the branch of power flow off-limit. Based on substitution theorem， the virtual branch is replaced by a parameterized virtual power source. Thus， the remove problem of virtual branch is turned to injection power increase problem on the two buses connected by the virtual branch. Based on sensitivity of the apparent power of the branch with respect to bus injection power， the minimum cost control scheme for branch of power flow off-limit can be obtained. The simulation results of the New England 39-bus test system show that the current of the branch of power flow off-limit descends to target level of current. The feasibility and efficiency of the proposed algorithm are validated.

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