中文摘要：

为实现电气化铁路负序和无功综合治理,建立了基于V/v变压器的铁路电能质量控制系统（V/v-railway power quality manage system,V/v-RPQMS）。结合比例谐振（proportional resonant,PR）控制器的特性,设计了V/v-RPQMS控制策略。研究表明：该方法通过将同步坐标系下的有功电流和无功电流分量转换到静止坐标系下进行调节,能实现V/v-RPQMS有功、无功功率的独立调节以及有功功率快速双向变换传输;与采用比例积分（proportional integral,PI）控制器的矢量控制相比,该策略避免了多次坐标变换,简化了控制算法;控制模型不存在耦合项和前馈补偿项,提高了系统的鲁棒性。仿真和实验结果表明所提控制策略性能良好,能显著改善V/v牵引供电系统电网侧电能质量。

英文摘要：

To compensate the negative-sequence and reactive power in the electric railway traction power supply system, we proposed a novel railway power quality manage system based on V/v traction transformers （V/v-RPQMS）. According to principle of proportional resonant （PR） controller, we proposed the control strategy of the V/v-RPQMS. In this method, the active and reactive current components in the vector control strategy are adjusted after transforming into a stationary coordinate to realize the V/v-RPQMS independent regulation of active and reactive power and the active power bidirec- tional transmission. Compared with the vector control using proportional integral （PI） controller, this strategy does not need repeated coordinate transformation but simplify the control algorithm; because no coupling term and feed-forward compensation exist, the robustness of the control system is improved. Finally, simulation and experimental results show that the proposed control strategy has a good dynamic and static performance, and it can significantly improve the grid-side power quality.