This study proposes a segmented subsidy mechanism suitable for microgrid load interruption management. The mechanism is in the form of a fixed subsidized tariff, where the grid pays the microgrid a tariff subsidy and the microgrid pays the users at a variable subsidized tariff, which is used to subsidize the losses of the users' participation in load interruptions. The study obtained a variable subsidized tariff model and a microgrid load interruption revenue model based on the least squares fitting method, and proposed three load interruption management strategies, namely, free interruption, fixed interruption time, and fixed interruption power, so that participating parties can choose flexibly. A flock optimization algorithm is used to solve the problem of maximum interruption revenue of a typical microgrid containing interruptible loads with a segmented subsidy mechanism. Example results verify the feasibility and effectiveness of the proposed strategy.
To maintain the supply and demand balance of the power grid in a clean and efficient manner, the cost of carbon emissions from electricity consumption is considered in the power market and a market-oriented source load interactive trading environment is constructed. A carbon emission accounting model for electricity consumption, a coordinated electricity carbon market approach, a cost accounting method for carbon emissions from electricity consumption, and a response market profit analysis method are proposed for the participation of load entities in regulation and response trading. Through the coupling of elastic electricity prices, the unbalanced electricity quantity that needs to be regulated and responded to is analyzed, Realize the function of tracking, regulating, and adjusting settlement electricity prices in response to demand. The proposed electricity carbon market synergy mechanism and method have been verified through examples to couple unbalanced electricity consumption, change electricity consumption costs and carbon emission benefits, and incentivize load entities to participate in regulatory responses. This provides a market-oriented price control method and market return analysis method for incorporating load elastic resources into the scope of regulation, improving the economic and environmental benefits of regulation.
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