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Method for system for configuring thermal power generating units to carry out self-healing of power grid

A technology for thermal power units and power grids, applied to electrical components, circuit devices, AC network circuits, etc., can solve the problem of lack of qualitative and quantitative evaluation models and methods for black start capacity, and achieve the improvement of power grid self-healing speed and rapid self-healing The effect of healing

Active Publication Date: 2013-01-30
POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD +1
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  • Abstract
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Problems solved by technology

However, there is still a lack of qualitative and quantitative evaluation models and methods for the influence of FCB unit control characteristics, black start capacity, ramp time and its position in the network on system recovery.

Method used

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  • Method for system for configuring thermal power generating units to carry out self-healing of power grid
  • Method for system for configuring thermal power generating units to carry out self-healing of power grid
  • Method for system for configuring thermal power generating units to carry out self-healing of power grid

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Embodiment Construction

[0026] The present invention will be further described in detail below in conjunction with the examples and drawings, but the implementation of the present invention is not limited thereto.

[0027] Such as figure 1 What is shown is a schematic flow diagram of an embodiment of the method for configuring a thermal power unit to perform grid self-healing according to the present invention, including the following steps:

[0028] S11. Obtain the network structure of the power grid, and determine the bus in the network structure;

[0029] Obtain the network structure of the grid that needs to speed up self-healing, that is, the connection status of all units in the grid, and determine the bus of the network structure.

[0030] S12. Set up a thermal power unit with a fast pressing force function on each of the bus bars, configure different black start capacities for the set thermal power units, and calculate when each bus is configured with a different black start capacity after configuring...

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Abstract

The invention discloses a method for configuring thermal power generating units to carry out self-healing of a power grid. The method comprises the following steps of: acquiring a network structure of the power grid and determining busbars in the network structure; respectively arranging a thermal power generating unit with a rapid voltage output function on each busbar, configuring different black start capacities for the arranged thermal power generating units, calculating the self-healing time of the power grid when different black start capacities are configured to each busbar after the thermal power generating unit is arranged, and determining the busbar and the black start capacity with shortest self-healing time; and arranging the thermal power generating unit on the busbar with the shortest self-healing time and configuring the black start capacity with the shortest self-healing time for the thermal power generating unit. Correspondingly, the invention also provides a system. According to the method and system disclosed by the invention, the positions of the thermal power generating units in the power grid network and the black start capacities needed to be configured for the thermal power generating units can be determined, and therefore the rapid self-healing capability of the power grid under the fault condition is remarkably improved.

Description

Technical field [0001] The invention relates to the technical field of power grid self-healing in a power system, and in particular to a method for configuring a thermal power unit to perform power grid self-healing, and a system for configuring a thermal power unit to perform power grid self-healing. Background technique [0002] The scale of modern interconnected power grids continues to expand, greatly improving the operating performance of the power system and meeting the rapid development of the national economy. At the same time, due to the expansion of power supply scale, the losses caused by grid failure will be even greater. The power system is recognized as the most complex man-made system. As a network structure, local failures may induce chain reactions, leading to large-scale blackouts and even the collapse of the entire power grid. How to prevent large-scale power outages, realize the pre-control of potential risks of the system, and quickly recover after failures ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/38
Inventor 李剑辉马煜华侯云鹤张文峰卢恩覃智君李嘉龙王宁龙霏
Owner POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD
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