Power flow distribution and its control technology for spot network with multi low-voltage sources parallel supply

被引：6

作者：

Zhang, Zhihua ^{[1
]}

Xu, Bingyin ^{[2
]}

Zhao, Yanlei ^{[2
]}

Liu, Yi ^{[3
]}

机构：

[1] College of Information and Control Engineering, China University of Petroleum

[2] College of Electrical and Electronic Engineering, Shandong University of Technology

[3] Shengli Oil Production Plant of Sinopec Shengli Oilfield

来源：

Dianli Xitong Zidonghua/Automation of Electric Power Systems | 2014年 / 38卷 / 02期

关键词：

Distribution networks; Reverse power flow; Series compensating voltage; Spot network with multi low-voltage sources parallel supply; Unified power flow controller (UPFC);

D O I：

10.7500/AEPS201209040

中图分类号：

学科分类号：

摘要：

In the spot network with multi low-voltage sources parallel supply, some sources might run with reverse power, making it impossible to ensure the system operating criteria. To solve the above problem, a power flow control method of the low-voltage bus is proposed. The law of power flow distribution is analyzed and the relation between the source output and the source voltage, system equivalent impedance and low voltage load is deduced. And the condition for reverse output is analyzed theoretically. To meet the operating condition of real-time parallel supply, the power flow control model of the low-voltage bus is proposed based on the principle of balanced source output, which gives the relationship between the source output and series compensating voltage. Finally, an experimental system is designed with the unified power flow controller (UPFC) with the validity of the proposed control method proved by experimental results. © 2014 State Grid Electric Power Research Institute Press.

引用

页码：59 / 63

页数：4

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