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电网技术  2010 

可控整流器型静止无功补偿装置可行性研究

, PP. 81-86

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Abstract:

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。

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