Research On Transaction Unit Of Hydropower Participation In Electricity Market In South China Power Grid And Coordinated Mechanism

In accordance with the decisions of electric power system reform, under the leadership of State Electricity Regulatory Commission, the electricity market of China South Power Grid is moving forward actively and steadily. Because of the complexity of hydropower participation in electricity market, at present hydropower competing mechanism does not be built in electricity market scheme and regulation in China South Power Grid. And hydropower does not participate in market competition for the moment.As clean regenerative energy, hydropower is a main part of power industry in China. High-effectively making use of hydroelectric resources rationally is an important measure of construction resources saving, environment friendly society. In order to expand the competitor range in China South Power Grid, optimize resources collocation and power construction investment by market mechanism, promote hydropower development in west and electricity in west transported to east to benefit harmony economy development in South China, it should have to study on hydropower participation in electricity market.So in the thesis, the necessary and predominance of hydropower participation in electricity market is analyzed. And especially the characteristic, structure, operation and trade mode is analyzed. The problems that hydropower is confronted with when it participates in electricity market are overall considered based on the characteristic of China South Power Grid and the goal of constructing a unification but open, competing for ordered and high-effect impartial business system under government overseeing and also from the situation of history and current. Principle, main market part, market mode and rule, coordination of hydropower and thermoelectricity, coordination between different provinces and so on are all studied. Many solving schemes for every problem are put forward. After studying advantage and disadvantage of every scheme and comprehensive comparison, reasonable scheme is recommended.1 Based on principle and design mode of market competition, the mode of hydropower and thermoelectricity competing on same pool, single quantity price and part of stations and limited electricity is fixed on in the first stage.2 Because of the uncertainty of market need and output of hydropower, the risk of middle and long term business is huge. But in order to make full use of hydropower and afford measures for hydropower avoiding market risk and flexibly choosing exchange unit, power generation right business, day ago competition business are studied.3 Hydropower station as the business unit to compete in market in initial stage is recommended after studying the different exchange units. Coordination scheme of the cascade stations in competition business and competition electricity proportion also are studied.4 It sets a trans-provincial virtual price coordinating coefficient for the different economy development level and different electricity price of provinces. And the coordinating coefficient is fixed on and simulation analyzed.5 In last of the thesis, the market competition rule and competition effect is studied.