Publication

Abstract : The horizontally integrated power system includes separate entities, namely generation, distribution and transmission companies, and independent system operator. The new framework introduces market to trade the contracted power among the market players. The market forms single buyer, poolco, bilateral and hybrid model. This paper focuses on power transaction in the hybrid market. Under hybrid model, the market players can participate in both auction and bilateral contract. Each generating unit meets a portion of the spot market and bilateral contract power in an area. This participation is represented in terms of hybrid participation factor. The paper presents the determination of hybrid participation factor based on the total contracted power of a generating unit. The system stability and reliability are ensured with the help of ancillary services, one of which is load follower. This service maintains system frequency and power through transmission line steady by adjusting the generation with respect to the contract breach. The determined participation factors are included in the schematic of two-area load follower system to analyze the power of generating unit and transmission line. The obtained results are compared with the tabulated powers to prove for the effective operation of load follower incorporating the participation factors.