Black start method, device and equipment of hybrid generating microgrid

A technology of black start and micro-grid, applied in the field of micro-grid, can solve the problem that it is difficult to achieve stable power supply in the whole area, and it is not ideal

Inactive Publication Date: 2019-10-18
鹤山市绿湖生物能源有限公司
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  • Abstract
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  • Claims
  • Application Information

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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 powe...

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  • Black start method, device and equipment of hybrid generating microgrid
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  • Black start method, device and equipment of hybrid generating microgrid

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Embodiment Construction

[0037] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. It should be noted that, if there is no conflict, various features in the embodiments of the present invention may be combined with each other, and all of them are within the protection scope of the present invention.

[0038] First of all, the hybrid microgrid involved in the embodiment of the present invention should include distributed power sources that can be switched to V / f mode, that is, distributed power sources with constant frequency and constant voltage, and distributed power sources with PQ mode. After the power grid is powered off, the distributed power supply in V / f mode starts and make...

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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...

Claims

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Application Information

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IPC IPC(8): H02J3/38H02J3/00
CPCH02J3/383H02J3/005H02J3/381H02J3/388Y02E10/56
Inventor 陆立明
Owner 鹤山市绿湖生物能源有限公司
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