摘要
文中提出了一种谐振型功率调节器以综合改善同相供电系统电能质量。谐振型功率调节器由LC谐振器连接背靠背电力变换器与牵引供电系统;该型结构可有效补偿系统不平衡电流,并具备无功功率支撑和谐波补偿功能。文中详述了谐振型功率调节器的运行和补偿机理,提出了基于最小化直流电容电压的LC谐振器的参数设计方案,并提出了谐振型补偿器的控制系统,结合PSCAD/EMTDCDA搭建的仿真模型有效验证了所提系统的有效性。
A resonant railway power conditioner for the co-phase traction power supply system is proposed to improve the power quality. The resonant RPC uses a LC resonant branch between the backto-back converter and the traction supply,which could reduce the unbalance currents by active power transfer and compensate reactive current and harmonics at the same time. The LC coupling impedance and the control system of the resonant RPC is proposed in this paper based on the mathematical models.The simulation is combined with PSCAD/EMTDCDA,and the results show the model effectively validates the effectiveness of the proposed system.
作者
杨哲
YANG Zhe(Xi’an Aeronautical Polytechnic Institute,Xi’an 710089, China)
出处
《信息技术》
2019年第6期144-148,共5页
Information Technology
