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A virtual synchronous generator control method, device and terminal equipment

A generator control and virtual synchronization technology, applied in circuit devices, photovoltaic power generation, electrical components, etc., can solve problems such as unstable operation of microgrid systems, and achieve the effect of improving operation stability

Active Publication Date: 2021-12-03
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a virtual synchronous generator control method, device and terminal equipment to solve the problem of unstable operation of the microgrid system in the prior art when the performance parameters of each virtual synchronous generator are different. question

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  • A virtual synchronous generator control method, device and terminal equipment
  • A virtual synchronous generator control method, device and terminal equipment
  • A virtual synchronous generator control method, device and terminal equipment

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Embodiment Construction

[0031] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0032] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

[0033] An embodiment of the present invention provides a virtual synchronous generator control method, which is applied to a microgrid system with at least one virtual synchronous generator unit, figure 1 The structure of the microgrid system is shown.

[0034] see f...

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Abstract

The present invention is applicable to the technical field of micro-grid control, and provides a virtual synchronous generator control method, device and terminal equipment, including: obtaining the performance parameters of each virtual synchronous generator unit in the micro-grid system, and calculating the micro-grid system according to the performance parameters The total virtual inertia and the weights corresponding to each performance index; calculate the positive ideal solution and negative ideal solution according to each performance parameter and weight, and further calculate the comprehensive evaluation index of each virtual synchronous generator unit; finally calculate according to the comprehensive evaluation index and total virtual inertia Virtual moment of inertia of each virtual synchronous generator unit. Through the virtual synchronous generator control method provided in this embodiment, when the performance parameters of each virtual synchronous generator are different, the corresponding virtual inertia can be reasonably determined for each virtual synchronous generator, and the operation stability of the microgrid system can be improved. .

Description

technical field [0001] The invention belongs to the technical field of micro-grid control, and in particular relates to a virtual synchronous generator control method, device and terminal equipment. Background technique [0002] The installed capacity of photovoltaic power generation systems in the power grid is increasing, but the photovoltaic power generation system itself does not have inertia, so when the photovoltaic power generation system is connected to the power grid through a power electronic converter, the total inertia capacity of the entire system will decrease. For this problem, virtual synchronous generator control is used to achieve friendly grid connection when photovoltaic and energy storage devices operate in coordination. [0003] The optical storage unit under the control of the virtual synchronous generator will be constrained by the relevant performance parameters of the system during operation, such as the state of charge of the energy storage, the ch...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/38H02J3/40H02J3/28
CPCH02J3/28H02J3/381H02J3/40H02J2300/24Y02E10/56
Inventor 孟建辉赵彭辉王毅
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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