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Power supply networking coordination control method and device, control equipment and storage medium

A technology of coordinated control and power supply, applied in the field of microgrid, can solve problems such as poor stability, and achieve the effect of solving poor stability

Inactive Publication Date: 2020-01-03
GUANGDONG POWER GRID CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The application provides a power network coordination control method, device, control equipment and storage medium, which are used to solve the technical problem of poor stability of the existing power network coordination control method

Method used

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  • Power supply networking coordination control method and device, control equipment and storage medium
  • Power supply networking coordination control method and device, control equipment and storage medium
  • Power supply networking coordination control method and device, control equipment and storage medium

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Embodiment Construction

[0047] The embodiment of the present application provides a power network coordination control method, device, control device and storage medium, which are used to solve the technical problem of poor stability of the existing power network coordination control method.

[0048] It should be noted that the self-optimizing decentralized control strategy adopted by the existing power network coordination control method, such as figure 1 As shown, its self-optimizing control strategy is a complete closed-loop control, and its primary frequency control and secondary frequency control do not sample the actual frequency of the power grid, nor do they adjust the frequency reference value in combination with the actual frequency of the connected power grid. When there is a large deviation between the actual frequency of the power grid and the theoretical frequency, frequency control is prone to out of control, and when multiple emergency power supply equipment is connected to the same mi...

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Abstract

The invention provides a power supply networking coordination control method and device, control equipment and a storage medium. The method comprises the steps: the actual frequency of a power grid isobtained; according to the difference between the preset rated frequency and the actual frequency of the power grid, a secondary frequency variable quantity is obtained; and an emergency power supplyfrequency reference value is obtained based on the sum of the primary frequency variable quantity and the secondary frequency variable quantity obtained after low-pass filtering, wherein the primaryfrequency variable quantity is obtained through a linear droop control mode. The actual power grid frequency of the microgrid connected with the emergency power supply is obtained; and secondary control is carried out based on the actual power grid frequency, so that the problem that frequency control is out of control easily when a large deviation exists between the actual power grid frequency and the theoretical frequency is avoided, and the technical problem of poor stability of an existing power supply networking coordination control method is solved.

Description

technical field [0001] The present application relates to the field of micro-grid technology, and in particular to a method, device, control device, and storage medium for coordinated control of a power supply network. Background technique [0002] Electric energy plays an extremely important role in national economic development and social life, and people have higher and higher requirements for the stability, safety and reliability of power supply. However, due to the characteristics of centralized power generation, long-distance power transmission and large power grid interconnection in the power system, it is easy to cause large-scale power outages due to the destruction of natural disasters. If emergency power supply measures are not taken, it will seriously affect the normal production and life of the society. [0003] The existing coordinated control method of emergency power supply usually adopts the self-optimized decentralized control strategy, but the primary freq...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/06H02J3/24H02J3/00
CPCH02J3/24H02J9/06
Inventor 张俊峰梁晓兵梅成林张毅超吴晓宇赵艳军唐景星王钤杨跃陈敏
Owner GUANGDONG POWER GRID CO LTD
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