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Research on the Transient Characteristics of Microgrid with Pulsed Load

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  • Jianke Li
  • Jinquan Wang
  • Ye Xu
  • Haitao Zhang
  • Chunming Wang
  • Pengfei Hou
  • Jun Yan

Abstract

Unlike traditional load, pulsed load typically features small average power and large peak power. In this paper, the mathematic models of microgrid consisting of synchronous generator and pulsed load are established. Average Magnitude Difference Compensate Function (AMDCF) is proposed to calculate the frequency of synchronous generator, and, based on AMDCF, relative deviation rate (RDR) which characterizes the impact of pulsed load on the AC side of grid is firstly defined and this paper describes calculation process in detail. Insulated Gate Bipolar Transistor (IGBT) is used as DC switch to control the on/off state of resistive load for simulating pulsed load, the period and duty-cycle of the pulsed load are simulated by setting the gate signal of IGBT, and the peak power of the pulsed load is simulated by setting the resistance. The system dynamic characteristics under pulsed load are analyzed in detail, and the influence of duty-cycle, period, peak power, and filter capacitance of the pulsed load on system dynamic indicators is studied and validated experimentally.

Suggested Citation

  • Jianke Li & Jinquan Wang & Ye Xu & Haitao Zhang & Chunming Wang & Pengfei Hou & Jun Yan, 2015. "Research on the Transient Characteristics of Microgrid with Pulsed Load," Mathematical Problems in Engineering, Hindawi, vol. 2015, pages 1-15, September.
    • Handle: RePEc:hin:jnlmpe:105387
    DOI: 10.1155/2015/105387
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