Simulation calculation method for Nash equilibrium point of electricity market including multiple load agents

Abstract

The invention discloses a simulation calculation method for a Nash equilibrium point of an electricity market including multiple load agents. The electricity market is simulated based on a conjectured supply function equilibrium (CSFE) model, and profit of a load agent company comes from a result formed by subtracting the cost used by the load agents for scheduling electricity price type and excitation type load resources from a subsidy given by an electricity company after bid success. Based on features of electricity price type and excitation type loads, the cost of the load agents is a secondary function of output of the load agents, a bidding strategy limit compensation price is a primary function of the output, a bidding coefficient is determined by response conjecture variables of the agents for the market, the agents dynamically adjust their own bidding strategies through learning, after full competition, finally, the market reaches the Nash equilibrium point, an algorithm performs analog simulation on a bidding process of each time, the market gaming process when the multiple load agents appear in a specific market is fully represented, a clearing price of a market final balance state is obtained, and guidance is provided for construction of the electricity market and evaluation of resource utilization efficiency.

Description

technical field [0001] The invention belongs to the technical field of smart grids, in particular to a simulation calculation method for a Nash equilibrium point in a power market with multiple load agents. Background technique [0002] With the increasingly prominent structural contradictions of the national economy, the peak load of the power grid continues to rise, and the peak-to-valley difference of the power grid is gradually expanding. In some areas, the imbalance between power supply and demand is very serious, which seriously affects the safe and stable operation of the power system. In order to meet the ever-increasing load demand, the country has to invest hundreds of billions of yuan in the construction of peak-shaving power plants every year, but the annual utilization hours of power generation and transmission equipment for peak-shaving demand are low, and the average cost is relatively high. Satisfying short-term peak power consumption will lead to rising cost...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the current situation that the construction of load agents and many power distribution companies in the current electric power market has just started, the present invention provides an agent Nash equilibrium point simulation method for a fully competitive electric power market with multiple load agents. The market game process during the load agency can obtain the clearing price of the final equilibrium state of the market, and provide guidance for the construction of the electricity market and the evaluation of resource utilization efficiency

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