Development of risk-constrained optimal bidding straegies for generation companies in electricity markets with contract for difference;

At the aim of minimizing the power grid company s purchasing electric power cost,an optimal model is set up under the contract for difference,which the grid company can buy power in contract,spot,reserve and interruptible load trade markets.

Based on the operation regulations of East China Power Market and the principle of enterprise profit maximization,the rational price bidding strategy model for units was developed by using features of the contract for difference and unit variable cost.

In such a method,the strongly coupled connected components are broken by introducing equivalent constraints and tearing part of the constraints,and a solving sequence which only includes basic geometric elements is obtained.

In accordance with the inherited characteristics and demands of Zhejiang province electricity transmission network,the analytical system of contract for differences is established based on the decomposition algorithm of electric energy ofdecisive contract and at present applied to the Zhejiang province generation power market.