Optimization method for power system grid reconfiguration considering microgrid as black start power supply

A technology of network structure reconfiguration and optimization method, which is applied in the field of power system and can solve problems that need to be improved

Active Publication Date: 2021-03-02
POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

It can be seen that the existing methods for power system grid reconfiguration considering the microgrid as a black start power supply need to be improved

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  • Optimization method for power system grid reconfiguration considering microgrid as black start power supply
  • Optimization method for power system grid reconfiguration considering microgrid as black start power supply
  • Optimization method for power system grid reconfiguration considering microgrid as black start power supply

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[0095] The accompanying drawings are for illustrative purposes only, and should not be construed as limitations on this patent; in order to better illustrate this embodiment, certain components in the accompanying drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art It is understandable that some well-known structures and descriptions thereof may be omitted in the drawings. The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0096] The present invention proposes a power system grid reconfiguration optimization method considering the microgrid as a black start power supply, and its implementation process includes the following detailed steps:

[0097] Step 1. Input power system topology parameters and electrical characteristic parameters;

[0098] Step 2. Determine the objective function of the grid reconstruc...

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Abstract

The present invention relates to a power system grid reconfiguration optimization method considering the micro-grid as a black-start power supply, comprising the steps of: inputting power system parameters; constructing with the goal of maximizing the power generation capacity of the recovery system and minimizing the load loss in the micro-grid Considering the microgrid as a black start power source for the grid reconfiguration optimization model; determine the constraints of the grid reconfiguration optimization model considering the micro grid as a black start power source; construct a comprehensive path evaluation index based on node importance and path recovery time, To optimize the recovery path of the unit to be recovered; the combination of bee colony algorithm and quantum theory is used to solve the model. The grid reconstruction strategy proposed by the present invention using a micro-grid with a high proportion of renewable energy as a black-start power supply has certain feasibility and effectiveness. In the case of insufficient conventional black-start resources in the system, using the microgrid as the black-start power supply can provide starting power for non-black-start units, restore non-black-start units quickly, and achieve the purpose of network structure 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q50/06H02J3/38
CPCG06Q10/04G06Q50/06H02J3/381H02J2203/20Y02E40/70Y04S10/50
Inventor 龙霏林建熙李力赵昱宣韩畅林振智文福拴
Owner POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD
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