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| Control Method of Power Flow with Adjustable Inductor |
| Jiang Yu, Wang Heng, Zheng Qunying, Zhang Zhigang |
| State Key Laboratory of Power Transmission Equipment & System Security and New Technology Chongqing University Chongqing 400044 China |
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Abstract The relationship between the line current and the vertical inserting voltage, vertical to the line current, and the parallel inserting voltage, parallel with the bus voltage, is analyzed. The amplitude and phase angle of the line current can be adjusted by adjusting the vertical inserting voltage and the parallel inserting voltage respectively, on which a novel control strategy about power flow of the line is presented. The active power and reactive power are controlled independently in the static reference frame by using the proposed power flow control strategy. In addition, a device suited for the proposed control strategy is also proposed and the voltage supplied by the proposed device is equivalent to the sum of two controllable voltage components independently, one of which is parallel to the bus voltage and another is vertical to the line current. Furthermore, the proposed device is composed of transformers, adjustable inductors and capacitor. The proposed device can be applied in the power system in reliability and economic greatly. And the paper illustrates how to choose the key components contained in the proposed device and describes the power flow range through the line controlled by the device.
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Received: 25 October 2010
Published: 07 March 2014
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[1] Schauder C D. Development of a 100Mvar static condenser for voltage control of transmission system[J]. IEEE Transactions on Power Delivery, 1995, 10(3): 1486-1496.
[2] Gyugyi L, Schauder C D, Sen K K. Static synchronous series compensator: a solid-state approach to the series compensation of transmission lines[J]. IEEE Transactions on Power Delivery, 1997, 12(1): 406-417.
[3] Schauder C D, Hamai D M, Edris A. Operation of the unified power flow controller (UPFC) under practical constrants[J]. IEEE Transactions on Power Delivery, 1998, 13(2): 630-639.
[4] Sen K K, Sen M L. Introducing the family of Sen transformer: a set of power flow controlling transformer[J]. IEEE Transactions on Power Delivery, 2003, 18(1): 149-157.
[5] 程路, 陈乔夫, 张宇, 等. 基于变压器可控负载原理的新型消弧线圈[J]. 电力系统自动化, 2006, 30(21): 77-80.
[6] 江渝, 林泽科, 刘和平, 等. 变压器式可控电抗器在线状态的控制方案[J]. 重庆大学学报, 2010, 33(1): 67-72.
[7] 邓占锋, 王轩, 周飞, 等. 超高压磁控式并联电抗器仿真建模方法[J] 中国电机工程学报, 2008 36(28): 108-113. |
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2011, Vol. 26 
