摘要
针对企业低压侧配电网大量感性无功设备消耗无功功率的情况而导致电能质量下降的问题,企业普遍采用并联电容器进行无功功率补偿,难以保证精度且可能伴随谐振发生。而DSTATCOM可以连续动态输出无功,但其成本较高,难以做到大容量运用。为实现高能耗企业低压配电网电气节能的目的,提出了一种兼顾DSTAT-COM快速无功补偿及TSC低成本大容量无功补偿优势的混合型无功补偿器。该系统由一台较小容量的DSTAT-COM和较大容量的多组TSC构成,其中DSTATCOM能实现快速连续无功调节,TSC实现无功的分级调节,二者协同工作实现低成本快速无级无功调节,仿真和实验结果表明了所提控制策略的正确性和有效性。
For the purpose of decline of power in low-voltage grid of high energy consumption enterprises,a hybrid var compensator is put forward by combining advantages of a fast of DSTATCOM and low-cost of TSC.The system consists of a smaller capacity DSTATCOM and larger capacity groups TSC,for reactive power can be regulated rapidly and continuously by DSTATCOM,TSC regulated by different levels,the above two work together to achieve low-cost and fast regulation.The simulation and experimental results show the proposed strategy is accurate and effective.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2010年第3期769-774,共6页
High Voltage Engineering
基金
国家自然科学基金(60774043)
湖南省教育厅优秀青年基金(08B071)~~
