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International Journal of Automotive Technology > Volume 21(4); 2020 > Article
International Journal of Automotive Technology 2020;21(4): 823-831.
doi: https://doi.org/10.1007/s12239-020-0080-1
Hao Chen, Chao Wang, Xi Chen, Xiaomin Lian
Tsinghua University
PDF Links Corresponding Author.  Xiaomin Lian , Email. lianxm@tsinghua.edu.cn
To solve the contradiction between interior space and demand for electricity of vehicle, this paper brings forward the dual-generator parallel power system (DPPS). However, it is difficult to control the voltage and balance output power between two different types of generators simultaneously. Thus, feed-forward control has been developed to accomplish decoupling the target current of two generators, and proportional-integral-differential (PID) controllers, with its stability being discussed, are also designed to track desired values. Based on structural analysis of DDPS, the simulation model is built in MATLAB/Simulink to prove the preliminary feasibility of the scheme and provide a reference for the real system. Finally, bench tests have been performed involving the dynamic change in the reference voltage, engine rotating speed, and load, to verify the effectiveness of the proposed method. The results show that it can achieve synchronous control of the output voltage and current ratio of two generators in DPPS.
Key Words: Dual-generator parallel power system, Balancing power, Feed-forward decoupling, PID, Synchronous control
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