摘要
摘要:提出了一种通过晶闸管开关装置直接调节电容两端电压来调节电容无功的方法,介绍了该方法的原理及其装置接线。还提出了换级控制方法,建立了换级控制的数学模型,并对典型换级过程进行了仿真分析。仿真结果表明,在最差的换级情况下,换级电流过载很小,经功率传输分析及与其它补偿方法比较后得知,该方法具有较好的技术性能,且装置造价较低。
The authors proposed a method to directly regulate the voltage across the capacitor by thyristor switching device and presented the working principle and wiring of the proposed method. In addition, this paper put forward a changing method for different voltage taps in the secondary winding of the auxiliary transformer, established a mathematical model for the tap changing up to 9 orders and conducted a simulation for typical tap changing process. The simulation results show that under the most serious condition the current of tap changing is rather small. The comparison between the proposed method and other reactive power compensating methods indicates that the proposed method may possesses better performance and lower cost of construction.
出处
《电网技术》
EI
CSCD
北大核心
2004年第16期64-68,共5页
Power System Technology
关键词
电力系统
无功补偿
数学模型
电容
接线原理
Auxiliary equipment
Costs
Electric potential
Electric power systems
Electric transformers
Networks (circuits)
Reactive power
Thyristors
