Optimization model for wind power-photovoltaics-energy storage joint system operation in rural area under the coupling of electricity market, carbon market, and green certificate market

Abstract

China encourages the development of user-side distributed new energy, and the rural user-side distributed “new energy + energy storage” system is an important measure to promote the “carbon peaking and carbon neutrality goals” and rural modernization construction. Based on the principle of “Maximum self-use” and “Surplus power is fed to the grid”, distributed new energy can participate in the electricity market, carbon market, and green certificate market to gain profits. This article takes the rural distributed wind power-photovoltaics-energy storage (WP-PV-ES) joint system as the research objective and proposes a two-layer optimization model for its participation in the electricity, carbon, and green certificate market. It solves the decision-making of energy storage unit charging and discharging during the scheduling cycle when the system participates in the electricity market and the distribution of grid electricity used by the system to verify green certificates and CCER. The energy loss caused by the charging and discharging of energy storage units is reflected in the total grid electricity calculation of new energy. The calculation results show that the revenue from participating in CCER transactions for wind power and photovoltaic units is lower than that in green certificate market units. New energy power stations can obtain the maximum revenue by using all the online electricity for green certificate verification.