Real-time transaction predicting, coordinating and optimizing method in both grid and provincial levels in generalized connection line mode

Abstract

The invention discloses a real-time transaction predicting, coordinating and optimizing method in both grid and provincial levels in the generalized connection line mode. The provincial electricity buying and selling demands, provincial electricity buying and selling capabilities, the electricity buying and selling demands of a main control area and electricity buying and selling capabilities of the main control area in a future period are calculated, the abandoned wind power quantity is combined, inter-province electricity buying and selling demands and capabilities are obtained, inter-province transaction demand information is pushed to provincial power grids timely on the basis of a message pushing function of a real-time transaction platform, and the accuracy of inter-province transaction demand and the timeliness of transaction signing are ensured.

Description

technical field [0001] The invention relates to a network-province two-level real-time transaction prediction coordination optimization method under the generalized tie line mode, which belongs to the technical field of power system scheduling automation. Background technique [0002] In recent years, the installed capacity of new energy in Northwest China has grown at an average annual rate of 67%, of which wind power has an average annual growth rate of 54% and photovoltaics has an average annual growth rate of 211%. , of which 28.71 million kilowatts of wind power and 18.97 million kilowatts of photovoltaic power, the northwest has become the region with the largest installed capacity of wind power and photovoltaic power in the country. Northwest new energy power generation has an average annual growth rate of 59%, of which wind power and photovoltaic power generation have an average annual growth rate of 47% and 159% respectively. As of the end of November 2015, Northwe...

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Problems solved by technology

[0007] 1. The generation method of inter-provincial transaction demand relies on manual judgment, and cannot fully consider the curtailed wind power caused by the limited network security section

[0008] 2. The user analyzes the backup demand, starting from the actual operation of the current power grid, and cannot make accurate predictions for a period of time in the future

[0009] 3. The network-province two-level coordinated dispatching operation mode under the generalized tie-line mode makes it impossible for users to know in real time the backup capacity of the provincial power grid and the main control area regulation and control unit for a period of time in the future

[0010] 4. The current transaction matching process is completed by telephone communication. The matching process takes a long time and is not efficient. There may be cases where the transaction is not signed in time or the transaction volume is not signed properly, resulting in a large execution deviation

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