采用SVG技术治理三相电压不平衡
Application of SVG Technology in Three-phase Voltage Imbalance Treatment
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- 引用格式:
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吴昌汉,端木君,冀杰,李雨桐.采用SVG技术治理三相电压不平衡[J].天然气与石油,2013,31(6):0.doi:
.Application of SVG Technology in Three-phase Voltage Imbalance Treatment[J].Natural Gas and Oil,2013,31(6):0.doi:
- DOI:
- 作者:
- 吴昌汉1 端木君1 冀 杰1 李雨桐2
- 作者单位:
- 1.西气东输管道公司，2.西南石油大学研究生院
- 关键词:
- 电能质量；三相电压不平衡；负序；SVG
Power quality; Three-phase unbalance; Negative sequence; SVG
- 摘要:
- 受电气化铁路牵引负载的影响，上级电网供电电源质量降低，三相电压不平衡度超标，导致变电站保护动作、站内停电、往复式压缩机出现电机轴承振动高报警，甚至出现电机轴承损坏及轴裂纹。对三相电压不平衡的危害进行分析，研究电能质量的治理方案。经过现场连续监测，测量取得电网输入三相电压不平衡参数，通过采用静止无功发生器SVG（Static Var Generator）治理电源三相电压不平衡，并补偿系统无功，治理效果良好。
Due to the effect of traction loads of electrified railways, quality of network power supply is reduced and three-phase voltage unbalance exceeds relative standard, which results in substation protection, high alarm of reciprocating compressor motor bearing vibration, even motor bearing damage and axial cracking. Asymmetrical three-phase power network parameters are obtained through continuous on-site monitor, adopted is the SVG (static var generator) to control power supply three-phase voltage unbalance and provide reactive compensation, accordingly, power supply quality has been improved greatly.
