Simulation and Deduction Technology for the Result of Spot Transactions for Cascade Hydropower Stations

Abstract

In order to adapt to the process of constantly deepening China’s electricity market reform, this paper presents a simulation and deduction technology for the result of spot transactions for cascade hydropower stations. Combining with the market modes, transactions rules and scheduling, and production modes in Sichuan, China, the transaction results were simulated and deduced from four perspectives. Based on complex hydraulic and electric connections of cascade hydropower stations (CHSs), and multi-dimensional non-linear constraints, a simulation and deduction model for spot market transaction of CHSs was established and the block multi-sequential algorithm with specified outputs was designed for calculation. The results of spot transactions of eight CHSs in the Dadu River Basin in southwestern China on a certain day were selected for verification of this method. The calculated results show that the method proposed in this paper can identify the bidding risk in a spot transaction. It provides an assistant decision support for the declaration of the bidding in spot transactions of CHSs and satisfies the mode of production of market-based production in the prevailing electricity market environment.