Electric power system net rack reconstruction optimization method capable of considering microgrid as black-start power supply

Abstract

The invention relates to an electric power system net rack reconstruction optimization method capable of considering a microgrid as a black-start power supply. The method comprises the following stepsthat: inputting electric power system parameters; taking the maximum recovery of the power generation capacity of the system and the minimization of a load loss amount in the microgrid as targets toconstruct a net rack reconstruction optimization model capable of considering the microgrid as the black-start power supply; determining the constraint condition of the net rack reconstruction optimization model capable of considering the microgrid as the black-start power supply; on the basis of a node importance degree and path recovery time, constructing a synthesis path evaluation index to optimize the recovery path of a unit to be recovered; and jointly combining a bee colony algorithm with a quantum theory to solve the model. A net rack reconstruction strategy which adopts the microgridwhich contains high-ratio renewable energy sources as the black-start power supply has certain feasibility and effectiveness. Under a situation that the conventional black-start resources of the system are insufficient, the microgrid can be taken as the black-start power supply to provide starting power for non-black-start units, and the non-black-start units can be quickly recovered to achieve apurpose of net rack reconstruction.

Description

technical field

[0001] The invention relates to the field of power systems, in particular to a power system grid reconfiguration optimization method considering a microgrid as a black start power supply. Background technique

[0002] With the development of computer control technology and the application of various power system automatic devices, the automation level and intelligence of the power system have been greatly improved, and the system's ability to resist interference and deal with failures has been significantly enhanced. A large number of intermittent renewable energy sources such as wind power and photovoltaics are connected to the power system, which significantly increases the installed capacity of the system. Due to the intermittent and fluctuating characteristics of renewable energy, as its proportion in power generation capacity and power generation is getting higher and higher, the operating environment of the power system is more complex, with more uncert...

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