高速铁路典型牵引变电所电能质量测试与评估

Measurement and Evaluation of Power Quality for Typical Traction Substations of High Speed Railways

利用专业的电能质量测试装置,对国内某高铁线路上典型牵引变电所开展电能质量综合测试,结合实测数据,基于相关标准定量评估了该典型牵引变电所谐波、负序、电压偏差等电能质量指标及牵引网电压波动特性;此外,对比了平衡接线变压器与既有Vx变压器对牵引变电所负序电流的抑制效果,为电气化铁路电能质量的综合治理提供了参考依据。

In this paper,the power quality of a typical traction substation on a high-speed railway line in China was comprehensively tested by a professional power quality testing device. Combined with the measured data,the power quality indexes about harmonics,negative sequence and voltage deviation were quantitatively evaluated based on relevant standards. The suppression effect of negative sequence current of balanced connection transformer and existing Vx transformer in traction substation were compared in this paper,which provided references for comprehensive treatment of power quality of electric railway.