Cuckoo algorithm-based virtual power plant optimized dispatching method

Abstract

The invention provides a cuckoo algorithm-based virtual power plant optimized dispatching method. The method comprises the following steps of 1) collecting and inputting data, wherein the data comprises electricity price prediction data, fan output prediction data, contract parameters, penalty parameters, gas turbine parameters, pumped storage power station parameters and the like; 2) constructinga virtual power plant economic dispatching optimization model, and preliminarily solving the model by adopting the optimization software; 3) inputting network constraint conditions, including power distribution network grid parameters, power flow constraint parameters and the like, and constructing a virtual power plant safety dispatching model; 4) carrying out the solving operation by adopting the cuckoo algorithm; 5) outputting a result. Compared with the prior art, the method realizes the effective management of a large-scale distributed power supply, an energy storage device, a controllable load and the like based on the virtual power plant technology. Therefore, on the premise that the economical efficiency and the reliability of a dispatching scheme are ensured, the calculation complexity is reduced. Meanwhile, the calculation time is reduced.

Description

technical field [0001] The invention belongs to the field of power supply dispatching in electric power systems, in particular to a virtual power plant optimization dispatching method based on the cuckoo algorithm. Background technique [0002] In recent years, fossil fuels have become increasingly scarce and environmental pollution has intensified. In order to solve the above problems, renewable energy power generation, especially wind power and photovoltaic power generation, has developed rapidly. Although the power generation reserves of renewable energy are huge and clean, they often have strong randomness, and grid connection alone will have a great impact on the grid, which is not conducive to the stable operation of the grid. In the electricity market environment, the market activities of wind farms are very risky, and their actual power generation often deviates from the bidding power, thus suffering from imbalance penalties, so they are at a disadvantage in the comp...

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Problems solved by technology

However, in fact, the optimal solution of economic dispatch is very likely to violate the power flow constraints of the power grid, causing problems such as overloading of lines and node voltage out-of-bounds, and causing harm to the safe operation of the power grid.

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