Research On Market Power Performance Of Generation Companies In The Transmission Constrained Electricity Markets

Speculations of electricity market members could weaken the equitableness of competition,hence,in order to supervise and manage the behavior,it is necessary to study the market power of generations companies.The paper set up a model about the random anticipant value for bidding strategy of the generation companies with transmission congestion,on account of the biding strategy to study the impact of transmission congestion.The model has a two-level structure,the upper layer is the model to maximize the anticipant value of benefit,and the under layer is market clearly price model based on the nodal boundary price theory.According to the trait of the model,the paper raises a mixed optimize method concluding Monte Carlo,particle swarm optimization algorithm and twice plan algorithm,Monte Carlo to simulate the bid of opponents,PSO to divide the model to maximize the anticipant value of benefit,twice plan algorithm to divide the market clearly price model.On basis of that,the paper studies the transmission impact for market power of generations companies under the circumstances of bidding by oneself and combined bidding strategies.Final,it is testified available to use both the model and methods by a IEEE 30-bus system.