An Optimal Dispatch Method for Reactive Power Auxiliary Services Applied in Power Market Environment

Abstract

The invention discloses a reactive power auxiliary service optimal dispatching method applied in the electric power market environment. Firstly, the reactive power auxiliary service cost analysis is carried out, including the reactive power auxiliary service cost on the power grid side and the reactive power auxiliary service cost on the power generation side. The cost of power auxiliary service is only composed of fixed cost and variable cost. The cost of reactive power auxiliary service on the power generation side is mainly the generator cost, which is composed of capacity cost and opportunity cost. Then, according to the cost of reactive power auxiliary service, the generator compensation The curve is analyzed and divided into three areas, and the optimal scheduling of corresponding reactive auxiliary services is realized for different areas. The invention is of great significance to the better operation of the power grid company, and reflects that the correct reactive power price can promote the economic benefits of the power grid, and the correct reactive power investment can also stimulate the reinvestment of reactive power equipment to maintain sufficient reactive power in the system Reserve, increase the safety and stability margin of the system, and benefit the development of the electricity market.

Description

technical field [0001] The invention relates to the field of research on reactive power auxiliary services in electric power markets, in particular to an optimal scheduling method for reactive power auxiliary services applied in an electric power market environment. Background technique [0002] Generally speaking, the acquisition of auxiliary services in the electricity market can be mainly through compulsory means and market means. Obtaining mandatory means is that the system operation department can force power plants to provide power market auxiliary services. The fundamental way to obtain market means is to provide commercialized power market auxiliary services through the establishment of a competitive market, which is widely used. [0003] The California electricity market in the United States points out that the independent system operator (ISO) obtains reactive power capacity from the generator set through a long-term contract; and, the California Independent Tradi...

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Problems solved by technology

[0004] The above studies on foreign power markets did not involve a detailed analysis of reactive power auxiliary service cost schemes, did not give a detailed method of subsidizing reactive power generation in power plants, and did not give a reactive power auxiliary that is suitable for the power market. Service Transaction Rules

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