| 支路潮流越限控制的虚拟支路法 |
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| 引用本文： | 苗峰显,白雪峰,郭志忠. 支路潮流越限控制的虚拟支路法[J]. 电力系统自动化, 2009, 33(14): 32-36 |
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| 作者姓名： | 苗峰显 白雪峰 郭志忠 |
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| 作者单位： | 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 |
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| 基金项目： | 哈尔滨工业大学科研创新基金(HIT.NSRIF.2008.54) |
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| 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。
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| 关 键 词： | 置换定理 支路潮流 灵敏度 虚拟支路 电压稳定 阻塞控制 |
| 收稿时间： | 2009-03-10 |
| 修稿时间： | 2009-07-09 |
A Virtual Branch Method for Branch Power Flow Off-limit Analysis |
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| MIAO Fengxian,BAI Xuefeng,GUO Zhizhong. A Virtual Branch Method for Branch Power Flow Off-limit Analysis[J]. Automation of Electric Power Systems, 2009, 33(14): 32-36 |
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| Authors: | MIAO Fengxian BAI Xuefeng GUO Zhizhong |
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| Affiliation: | MIAO Fengxian,BAI Xuefeng,GUO Zhizhong(Harbin Institute of Technology,Harbin 150001,China) |
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| 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 ... |
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| Keywords: | substitution theorem branch power flow sensitivity virtual branch voltage stability congestion control |
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