LOW VOLTAGE APPARATUS ›› 2020, Vol. 594 ›› Issue (9): 50-56.doi: 10.16628/j.cnki.2095-8188.2020.09.010

• DC Converting Technology • Previous Articles     Next Articles

Control Strategy of Virtual Diesel Generator Set for Shipboard Inverter

ZHAN Hangxing, LIU Luhui, XIAO Xiongbo, LIN Yunfeng   

  1. National Key Laboratory of Science and Technology on Vessel Integrated Power System, Naval University of Engineering, Wuhan 430033, China
  • Received:2020-05-18 Online:2020-09-30 Published:2020-10-18

Abstract:

Aiming at the problems of excessive overshoot and long steady-state adjustment time during loading and unloading,and the need to switch control strategies during grid connection and disconnection when the inverter and diesel generator (DG) sets are operated in parallel.A simplified virtual diesel generator control strategy is proposed.In this paper,a mathematical model of the control strategy of a virtual diesel generator set (VDGS) is established,and the influence of control system parameters on system stability is analyzed.Based on MATLAB/Simulink modeling simulation,the results show that the proposed control strategy can significantly reduce the overshoot during loading and unloading,reduce the adjustment time,and there is no need to switch the control mode during grid connection and disconnection.

Key words: inverter, virtual diesel generator set, small signal model, overshoot, steady-state adjustment time

CLC Number: