Black-start method and apparatus of power grid

A black-start, power grid technology, applied in the direction of flexible AC transmission system, AC network load balancing, single-network parallel feeding arrangement, etc. The effect of normal operation and short power transmission time

Active Publication Date: 2017-07-28
CHINA ELECTRIC POWER RES INST +2
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Problems solved by technology

[0005] The invention provides a black start method and device for a power grid, the purpose of which is to use a battery energy storage system to formulate a black start scheme to overcome the defects of self-excitation and long power transmission time in the traditional black start scheme, so as to comply with the requirements of battery energy storage. The development trend of large capacity and large scale

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  • Black-start method and apparatus of power grid
  • Black-start method and apparatus of power grid
  • Black-start method and apparatus of power grid

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[0041] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0043] The invention provides a power grid black start method, the system recovery method is serial recovery, that is, firstly restore the power supply of the high-voltage and possible medium-v...

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Abstract

The invention relates to a black-start method and apparatus of a power grid. The black-start method of a power grid includes the steps: utilizing a cell energy storage power station in a fault area to determine a black-start power supply in the fault area; and controlling the control mode of the black-start power supply, and starting a set which is started preferentially. The technical scheme provided by the black-start method and apparatus of a power grid utilizes the cell energy storage system to make a black-start scheme, and overcomes the defect that self excitation and long power transmission time easily occur in a traditional black-start scheme so as to conform to the development trend of high capacity and large scale of energy storage of cell.

Description

technical field [0001] The invention relates to the technical field of energy storage operation control, in particular to a black start method and device for a power grid based on a battery energy storage power station. Background technique [0002] The so-called black start is the recovery after the power system is completely stopped. It means that after the entire power grid suffers a large-scale power outage due to a large disturbance or fault, it uses a unit with self-starting capability inside the system or a power source outside the system to connect to the power grid. Line support is used to gradually restore the system, and finally realize the process of restoring the entire power system to normal operation. [0003] Self-starting ability refers to the ability of the unit to start from the shutdown state within a specified time and have the ability to send power to the system without external power supply. The energy storage power station has self-starting capabilit...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38H02J3/32
CPCH02J3/32H02J3/38Y02E40/10Y02E70/30Y04S10/52
Inventor 李建林薛宇石徐少华田春光吕项羽惠东
Owner CHINA ELECTRIC POWER RES INST
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