Study on the Joint Optimization Mode of Electric Energy and Regulation Market

  Method  Regulation auxiliary service pricing adjustment model and the joint clearing model of electric energy and regulation market considering the difference of fast and slow regulation resources and regulation performance was proposed in this paper， which were applied to the simulation of a real power grid to compared with domestic electric energy - regulation step clearing market. Two typical scenarios were set up in wet season and dry season. The clearing of regulation resources， the influence on the electricity purchase cost in the spot market and the active degree of regulation market were studied in detail.

  Result  In the stepwise clearing mode， the rapid regulation resource has obvious advantages and causes the increase of electricity purchase cost in the electricity market. In the electricity-regulation joint optimization model， the clearing results of fast and slow regulation resources are affected by the pricing adjustment strategy and the increase rate of electricity purchase costs in the power market is smaller than that in the stepwise model， and the clearing price and fluctuation degree in the regulation market are higher than that in the stepwise clearing mode model.

  Conclusion  The combined optimization mode of electric-regulation modulation with reasonable price adjustment strategy is helpful to realize reasonable competition among units with different regulation performance and stimulate market vitality.