摘要
鉴于目前地铁车辆辅助供电系统采用扩展供电或交叉供电模式存在设备体积大、噪声大,且当一台辅助逆变器故障时,要切换到减载模式会严重影响到乘客舒适度的问题,开发了并网供电辅助供电系统。以马来西亚安邦线地铁车辆辅变供电系统为例介绍了一种基于功率下垂的辅助逆变器的并网控制设计,对并网控制的原理、实现方法做了详细介绍,并通过试验验证了该系统运行稳定、均流效果良好,满足车辆运行需求,可大大提升供电冗余与和乘客舒适度。
Although, extended power mode and cross power mode were put to use widely in subway auxiliary power system ,there were some problems such as big volume ,high noise level in these two mode. Furthermore ,it affected the travel experience seriously when the power system was switched to light load mode because of one of the auxiliary inverter failed. In terms of these situations, parallel auxiliary power system was developed. Taking Malaysia Ampang extension line project as an example, an grid-connected control design of auxiliary power system was introduced based on power droop method. The grid-connected control theory and application were shown detailly. The system was proved steady with good current sharing performance, which could fully fulfil the demands of subway vehicles and improved the power supply redundancy and travel experience.
出处
《机车电传动》
北大核心
2015年第4期59-63,共5页
Electric Drive for Locomotives
关键词
辅助逆变器
并联控制
下垂特性
锁相
均流
地铁车辆
auxiliary inverter
parallel control
droop characteristic
phase-lock
current sharing
metro vehicle
