In recent years, railway power conditioner (RPC) has been used to improve the power quality of a traction power system. In engineering application of RPC, mismatches between parameters used in controller and actual values are inevitable, which will increase the difficulty of current controller design and deteriorate compensation performance. In this paper, a passivity-based control (PBC) system is studied for multilevel RPC to enhance its tolerance for mismatches. According to the topology of multilevel RPC, equivalent electrical and mathematical models are developed. To employ PBC, Euler_Lagrange system model of RPC is established by Park ( αβ/dq ) transformation, and the passivity of RPC and stability of PBC are proved. On this basis, the robustness of PBC is analyzed and criteria for damping selection are derived. Finally, simulation and experiments have been carried out to verify the structure and control method in the paper.

中文翻译：

---

多级铁路功率调节器无源控制的分析、设计与实现


近年来，铁路功率调节器（RPC）已被用于改善牵引电力系统的电能质量。在RPC的工程应用中，控制器所使用的参数与实际值的不匹配是不可避免的，这将增加当前控制器的设计难度并恶化补偿性能。本文针对多级 RPC 研究了一种基于被动性的控制（PBC）系统，以增强其对失配的容忍度。根据多级RPC的拓扑结构，建立了等效的电气和数学模型。针对PBC的应用，通过Park(αβ/dq)变换建立了RPC的Euler_Lagrange系统模型，并证明了RPC的无源性和PBC的稳定性。在此基础上，分析了PBC的鲁棒性，并推导了阻尼选择的准则。最后通过仿真和实验验证了本文的结构和控制方法。