The increasing proportion of DC and new energy sources leads to a decrease in the frequency regulation capability of the power system. It is necessary to have a new energy frequency regulation to ensure frequency stabilization after high-capacity DC blocking. A new energy primary frequency regulation program is proposed, including the parameters of deadband, limit, and modulation rate. The optimal deadband parameters are given in terms of steady state frequency fluctuation, frequency difference response, and new energy equipment performance. The optimal limiting parameters are determined based on the simulation of high frequency scene and low frequency scene. Modulation rate parameters are rectified based on the relationship between deadband, limit, and modulation rate. Finally, a primary frequency regulation program for wind farms and photovoltaic stations is proposed.

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New Energy Primary Frequency Regulation Program Under High Percentage New Energy Conditions

  • Lei Zhou,
  • Zhiguang Huang,
  • Hui Huang,
  • Yanqiang Shi,
  • Zhaowei Li,
  • Yijing Zhang,
  • Jinwen Sun,
  • Jiachen Liu

摘要

The increasing proportion of DC and new energy sources leads to a decrease in the frequency regulation capability of the power system. It is necessary to have a new energy frequency regulation to ensure frequency stabilization after high-capacity DC blocking. A new energy primary frequency regulation program is proposed, including the parameters of deadband, limit, and modulation rate. The optimal deadband parameters are given in terms of steady state frequency fluctuation, frequency difference response, and new energy equipment performance. The optimal limiting parameters are determined based on the simulation of high frequency scene and low frequency scene. Modulation rate parameters are rectified based on the relationship between deadband, limit, and modulation rate. Finally, a primary frequency regulation program for wind farms and photovoltaic stations is proposed.