Black start method, device and equipment of hybrid generating microgrid

Abstract

The invention discloses a black start method, device and equipment of a hybrid generating microgrid. The black start method comprises the steps of obtaining the number, the type and the power-supply power of distributed power sources which can be started to supply power currently; judging total power of emergency equipment which needs to be restored into operation in a current blackout area, wherein information of the emergency equipment is pre-registered in a control system and is divided into a plurality of priorities according to the emergency degree; determining a safe start environment and starting a boosting transformer of an AC bus docked to a large power grid; and distributing the power-supply power of the distributed power sources to the emergency equipment according to the priorities. According to the black start method, device and equipment, objects of the emergency equipment are preset and the priorities are set for the emergency equipment to adapt the condition of unstablepower supply of the hybrid generating microgrid in black start, so that the hybrid generating microgrid can firstly provide the existing power-supply power to the emergency equipment with high priorities, thereby maintaining the order of a power supply area and quickly restoring power supply.

Description

technical field [0001] The invention relates to the technical field of microgrids, in particular to a black start method, device and equipment for hybrid power generation microgrids. Background technique [0002] With the implementation of the national rural revitalization strategy plan and the adjustment of the energy structure and other major trends of the times, promoting the development of the micro-grid field of the smart grid and improving the development and utilization of new energy in rural areas is an important direction and important content to promote the reform of energy production and utilization. [0003] At present, the micro-grid has a certain amount of surplus power in the grid-connected state. When the large power grid suddenly loses power, the micro-grid can realize black start to provide reverse power supply to the large power grid, but it is difficult to do it when the micro-grid switches to black start. Stable power supply for the entire area, so the b...

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Problems solved by technology

[0003] At present, the micro-grid has a certain amount of surplus power in the grid-connected state. When the large power grid suddenly loses power, the micro-grid can realize black start to provide reverse power supply to the large power grid, but it is difficult to do it when the micro-grid switches to black start. Stable power supply for the entire area, so the black start scheme of the traditional microgrid is not ideal

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