Congestion Management With The Participation Of Load Bidding And The Recovery Of The SVC Cost

Transmission Pricing, the important constitution of the electrical market price scheme, is the essential factor to affect the development of the open transmission access. Under this situation, the newly transmission pricing should be dealt with to promote the development and benefit of the transmission grid. Moreover, this price scheme should provide the correct marginal price of the current grid to take great advantage of the grid and provide the accurate information about its planning. In fact, the spot price deduced by marginal pricing method is the theory basis of the pricing scheme.In the electricity market, spot price can reflect the transmission short run marginal cost varied with the time and location. The article analyses the unbundling of the spot price, and discusses the theory of the spot price based on the LP decoupled model, which set the bases to the following discussion.Because the spot price is fluctuant and the merchandise surplus exists, the complexity of the participation of the third part and the system operation is greatly increased. The article provides the transmission congestion strategy with the participation of the load bidding which can greatly smooth the price.It becomes important to express the reactive cost if the reactive power electricity market is built. The article provides the method to get the corresponding operation cost based on the analysis of SVC capacity available factor in assigned years, which can cover the investment cost completely.