可控整流器型静止无功补偿装置的可行性研究  

Feasibility Research on Controlled Rectifier Type of Static Var Compensator

作　　者：郭捷[1] 江道灼[1] 李海翔[2] 杨铭富[3] 杨贵玉[1] 

机构地区：[1]浙江大学电气工程学院,浙江省杭州市310027 [2]浙江省电力公司,浙江省杭州市310007 [3]金华电业局,浙江省金华市321017

出　　处：《电网技术》2010年第7期81-86,共6页Power System Technology

摘　　要：从理论上分析了可控整流器型无功补偿装置电路拓扑的可行性,即在触发角接近90°的整流桥直流侧通过直流电抗器短接不会发生断流或过流。分析了装置进行无功补偿的机制,即整流桥吸收无功功率与直流侧平均电流近似成正比。对装置及其控制系统进行了建模,并以此为依据提出了控制器设计的基本要求。对装置电路进行了仿真,并通过小模型样机实验验证了该装置的可行性。这种可控整流器型静止无功补偿装置容量不受电抗值的限制,结构紧凑,可以大幅减少交流电抗器的数量并降低有功损耗,有进一步研究和应用的前景。The feasibility of circuit topology of controlled rectifier type of static var compensator （SVC） is theoretically analyzed，that is, the cutoff or over-current will not occur when the DC side of the controlled rectifier is short-circuited through an inductance while the trigger angle is close to 90°. The mechanism of reactive power compensation of controlled rectifier type of SVC, i.e., the reactive power absorbed by rectifier bridge is in direct proportion to the average current at DC side approximately, is analyzed. The controlled rectifier type of SVC and its control system are modeled and on this basis the basic requirements for the design of the controller are made. The circuit of controlled rectifier type of SVC is simulated and through prototype experiments the feasibility of this device is verified. The controlled rectifier type of SVC is not restricted by the value of reactance and its structure is compact, it makes the numbers of AC reactor as well as the active power loss reduced by a wide margin, therefore it is worthy to be further researched for the controlled rectifier type of SVC.

关 键 词：静止无功补偿装置 相控整流器 晶闸管控制电抗器 触发相位角 小模型样机实验 

分 类 号：TM76[电气工程—电力系统及自动化]