基于RPC的同相供电系统供电运行能量多维控制研究  

Multi-dimensional Control of Power Supply Operation Energy in Cophase Power Supply System Based on RPC

作　　者：崔晓[1] 熊宇[1] 柳贵东 曾贵娥[1] CUI Xiao;XIONG Yu;LIU Guidong;ZENG Gui’e(Faculty of Electronic and Information Engineering,Guangdong Baiyun University,Guangzhou 510450,China)

机构地区：[1]广东白云学院电气与信息工程学院,广州510450

出　　处：《电源学报》2024年第5期213-219,共7页Journal of Power Supply

基　　金：广州市科创委资助项目(201804010134);广东省教育厅特色专业资助项目(CXQX-ZL201901)。

摘　　要：为确保高速铁路安全、可靠、经济运行,提出高速铁路同相供电系统供电运行能量多维控制方法。分析供电系统组成结构与供电过程,利用潮流控制器补偿该系统功率,确保系统稳定运行;结合三相不平衡程度、电压电流波形畸变等指标构建运行能量的最佳负载模型,使传输能量损失降到最低;经过对2个供电臂电流的有功与无功补偿,消除负序电流;制定铁路功率调节器控制策略,获得降压变压器变化情况,保障直流侧电压稳定;再使用比例积分控制器获取电流理想值,得出控制信号,实现供电运行能量多维控制。仿真实验证明,所提多维控制方法能提高三相电流平衡程度,达到均压稳定效果。To ensure the safe,reliable and economic operation of high-speed railway,a multi-dimensional control method for the power supply operation energy of high-speed railway cophase power supply system is proposed.The composition structure and power supply process of the power supply system are analyzed,and a power flow controller is used to compensate the power of the system,thus ensuring its stable operation.Combined with indicators such as threephase imbalance degree and distortion of voltage and current waveforms,the optimal load model of operation energy is constructed to minimize the loss of transmission energy.Through the active and reactive power compensation for current in two power supply arms,the negative-sequence current is eliminated.A control strategy for the railway power conditioner is formulated,and the changes in the step-down transformer are obtained to ensure a stable DC-side voltage.Afterwards,a proportional integral controller is used to obtain the ideal value of current and get the control signal,thus realizing the multi-dimensional control of power supply operation energy.Simulation results show that the proposed multi-dimensional control method can improve the three-phase current balance degree and achieve an effect of voltage sharing stability.

关 键 词：高速铁路 同相供电系统 运行能量 多维控制 铁路功率调节器 

分 类 号：TM922[电气工程—电力电子与电力传动]