Affiliations: [a] School of Electrical Information Engineering, Henan University of Engineering, Zheng Zhou 451191, P.R. China | [b] Electric Power Research Institute, State Grid Henan Electric Power Company, Zhengzhou 450000, P.R. China
Correspondence:
[*]
Corresponding author: Yang Zhang, School of Electrical Information Engineering, Henan University of Engineering, Zheng Zhou 451191, P.R. China and Electric Power Research Institute, State Grid Henan Electric Power Company, Zhengzhou 450000, P.R. China. E-mail: zhangyang025@seu.edu.cn
Abstract: With the merits of permanent magnet (PM) machine combining the possibility of controllable flux by field windings, hybrid excitation synchronous machine (HESM) is a novel candidate for wide speed range regulation application. The HESM with claw pole topology incorporates the advantages of the hybrid excited synchronous machine and claw pole machine. In this paper, the topology, operating principle and basic mathematical model of HESM are analyzed and established, respectively. Then, the control model of the HESM is deduced on the basis of the space vector control method, and the operating performance of the HESM across its entire operating range is also investigated. A new adaptive control strategy for the HESM drive system is proposed and designed on the basis of analyzing the influences of the flux-weakening coefficient, respectively, which can operate in both flux-enhancing and flux-weakening conditions. The correctness and effectiveness of the proposed adaptive control strategy and drive system design are verified by simulation and experimental results, which demonstrate that the adaptive control strategy maximizes the range of speed regulation while exhibits the high efficiency.
Keywords: Hybrid excitation, speed region control, wide speed range adjusting, vector control
