| TSC装置投切过程分析 |
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| 引用本文： | 农为踊,程汉湘. TSC装置投切过程分析[J]. 电力电容器与无功补偿, 2012, 0(6): 26-29 |
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| 作者姓名： | 农为踊 程汉湘 |
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| 作者单位： | 河源供电局电力调度控制中心;广东工业大学自动化学院 |
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| 摘 要： | 对低压配电系统中的无功补偿电容器,一般采用晶闸管进行动态投切。文中对晶闸管的投入和切除过程的数学模型进行了详细的分析推导。理论推导结果证明无论晶闸管切除次序如何,3台电容器上的残压始终为线电压峰值的1.366、1、0.366倍;V1、V2晶闸管两端的电压始终在一定的范围变化。该结果为抑制投切过程中产生的过电压问题及TSC装置中晶闸管的参数选择提供了理论依据。
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| 关 键 词： | 晶闸管投切电容器(TSC) 投切过程分析 过电压 |
Switching Process Analysis of TSC Device |
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| NONG Wei-yong,CHENG Han-xiang. Switching Process Analysis of TSC Device[J]. Power Capacitor $ Reactive Power Compensation, 2012, 0(6): 26-29 |
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| Authors: | NONG Wei-yong CHENG Han-xiang |
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| Affiliation: | 1 Electric Power Dispatching Control Center of Heyuan Power Supply Bureau,Heyuan 517000China; 2 School of Automation,Guangdong University of Technology,Guangzhou 510006,China) |
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| Abstract: | Thyristors are usually used to switch reactive power compensation capacitor at low voltage distribution system.In this paper,the mathematical model for switching on and off process of thyristors is analyzed and derivated in detail.It is proved by the theoretically derivated result that the residual voltage on 3 units of capacitors is 1.366,1 and 0.366 times of the peak of line voltage respectively,regardless of switching sequence of the thyristors;and the voltage on both sides of V1 and V2 thyristors are always within a definite variation.The result provides a theoretical basis for restraining overvoltage in switching process and for rating parameter selection of thyristors in TSC device. |
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| Keywords: | thyristor switched capacitor(TSC) analysis of switching process overvoltage |
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