| Rapid economic development and the living standards improvement requires us to follow the power industry should the pace of economic and social development, follow the trend of the times, efforts to improve the quality and level of supply. The power industry should follow economic and social development pace and the trend of the times, made efforts to improve the quality and level of electricity. Reserve capacity is an important guaranty to ensure reliability of power supply, in the market environment, it should gradually break away from The traditional allocation of reserve capacity and gradually find a goal which could improve the economic efficiency of reserve allocation.This article discusses, the two ways in reserve allocation in the market conditions, which are only considering the generation side of the spare reserve allocation and Interruptible load to participate in the reserve capacity allocation. Firstly, this article analyzed the classification form of spare capacity, composition and cost-benefit analysis, concluded that reserve capacity can be traded as a commodity in the market. And then analysis the optimization model of only consider the generation side of the reserve capacity, to the maximum social benefit as the objective function, obtained through an example that the method has superior economic compared with the traditional method. Finally, analyzed the model of interruptible load to participate in the reserve capacity allocation, and analyzed the scope of each model and the advantages and disadvantages. Established optimization model which join Interruptible load and standby generation side together, this model made grid companies to purchase reserve allocation in the minimum cost. Through a model validated that in the same case of the grid reliability, the cost of purchasing reserve of integrated optimization model is less than the other two ways.By the argument of the paper can be drawn that, in the market environment, economic instruments should be assigned to allocate the reserve, this is not only made the resources of reserve allocate in a rational way, but also could optimize the economic benefits. |