A large-scale new energy consumption level evaluation method and system

Abstract

The invention discloses a large-scale new energy consumption level evaluation method and a large-scale new energy consumption level evaluation system. The method comprises the steps: obtaining the operation data of a power grid, wherein the operation data comprises time sequence data and unit data; determining a required capacity and an equivalent load according to the time series data; extractingan upper limit moment of the load power, a lower limit moment of the load power, an upper limit moment of the demand capacity, a lower limit moment of the demand capacity, an upper limit moment of the equivalent load power and a lower limit moment of the equivalent load power in a set time, wherein the moments are unit time in the set time; arranging the extracted moments from small to large in sequence to obtain a compressed time sequence; extracting time series data corresponding to the compressed time series to obtain compressed time series data; compressing corresponding data in the unitdata according to the compression ratio of the compressed time sequence; and carrying out new energy consumption capability evaluation based on time sequence simulation according to the processed timesequence data and unit data. The calculation data volume can be compressed, and the calculation scale is reduced. The calculation speed is increased.

Description

technical field [0001] The invention relates to the technical field of energy consumption assessment, in particular to a large-scale new energy consumption level assessment method and system. Background technique [0002] New energy has the characteristics of random fluctuations on multiple time scales. As the penetration level gradually increases, it becomes more difficult for the grid to absorb new energy. A scientific and reasonable assessment of the new energy capacity of the power grid is not only helpful to the planning and development of wind farms, but also to solve the problem of wind curtailment from the source. [0003] Using the method of timing simulation, aiming at the annual maximum balanceable wind power, comprehensively considering factors such as wind power output characteristics, load characteristics, unit peak-shaving characteristics, thermoelectric coupling characteristics of different types of heating units, start-up mode and grid transmission capacity,...

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Problems solved by technology

[0004] China's provincial power grid covers a large area and has a complex grid structure. It takes a long time to establish a detailed grid topology and carry out long-term scale time-series production simulations.

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