An auxiliary service and electric energy market sequential clearing method

Abstract

The invention discloses an auxiliary service and electric energy market sequential clearing method. The method comprises the following steps: establishing a 96-time safety constraint unit combinationmodel of an operation day; calculating a day-ahead startup unit combination in a 96-time period of the operation day under the minimum power purchase cost under the constraint condition of the safetyconstraint unit combination; according to the frequency modulation service sorting price of the day-ahead startup unit combination in the scheduling auxiliary service market and the standby auxiliaryservice price of the standby auxiliary service provider in the standby auxiliary service market, determining unit frequency modulation output in each time period and unit standby capacity in each timeperiod; further, a further approach is provided, under the constraint condition of safety constraint economic scheduling, calculating to obtain a 96-time period safety constraint economic dispatchingmodel of the operation day; therefore, the reserved capacity is provided for the frequency modulation auxiliary service and the standby auxiliary service in the day-ahead electric energy market clearing process, the performability of a clearing result of the day-ahead scheduling plan is guaranteed, and the day-ahead starting unit output plan is more suitable for the condition of the market starting stage.

Description

technical field [0001] The invention relates to the technical field of electric power market, in particular to a sequential clearing method for auxiliary services and electric energy market. Background technique [0002] With the advancement of electricity market reform, the construction of electricity spot market is gradually put on the agenda. At present, eight regions including the South (starting from Guangdong) have started the construction and exploration of the electric power spot market as the first batch of electric power pilots. In the electricity market environment, the traditional power generation plan is transformed into the calculation of electricity transactions between buyers and sellers, that is, the electricity market is cleared. In addition to the electric energy market, the power market also has a frequency regulation auxiliary service market and a backup auxiliary service market to ensure the safe and stable operation of the power grid. At this stage, ...

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Problems solved by technology

But in fact, the electric energy market and the ancillary service market cannot be completely separated. The day-ahead electric energy market needs to consider providing reserved capacity for frequency modulation ancillary services and backup ancillary services during the clearing process, otherwise it is difficult to guarantee the clearing results of the day-ahead dispatch plan the enforceability of

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