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A three-level control system, method and computer storage medium of an svg device

A three-level control and three-level modulation technology, applied in circuit devices, flexible AC transmission systems, output power conversion devices, etc. time, the effect of the best control effect

Active Publication Date: 2021-01-15
武汉武新电气科技股份有限公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the operation of the SVG device, the main controller needs to exchange and control the data of each power unit, the control task is huge, and the conventional control system architecture is not competent

Method used

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  • A three-level control system, method and computer storage medium of an svg device
  • A three-level control system, method and computer storage medium of an svg device

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Embodiment Construction

[0040]The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples cited are only used to explain the present invention, and not used to limit the scope of the present invention.

[0041]Such asfigure 1 As shown, a three-level control system for an SVG device, the SVG device includes a power module composed of multiple power units cascaded; the three-level control system includes a central control module, a split-phase control module, and fiber board-level control Module; the central control module, the phase-separated control module, the optical fiber board-level control module and the power module are cascaded in sequence.

[0042]Specifically, there are three phase separation control modules, which are A phase control module, B phase control module, and C phase control module. The optical fiber board-level control module includes multiple A-phase fiber board-level control modules and multiple The B-phase fiber bo...

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Abstract

The invention relates to the field of SVG device control, in particular to a three-level control system and method for an SVG device and a computer storage medium. The SVG device comprises a power module formed by cascading a plurality of power units. The three-level control system comprises a central control module, a split-phase control module and an optical fiber board-level control module. Thecentral control module, the split-phase control module, the optical fiber board-level control module and the power module are sequentially cascaded. The power unit module of the whole device is reasonably and efficiently managed through the three-level control system, and the three-level control system has a better control effect compared with a conventional control system. The three-level control system has the obvious control advantage that the control delay is lower and is mainly embodied in a completely parallel working mode between split-phase controllers and between optical fiber plates, so that the speed of the control system is greatly increased, and the control delay of the control system is reduced.

Description

Technical field[0001]The invention relates to the field of SVG device control, in particular to a three-level control system, method and computer storage medium for SVG devices.Background technique[0002]With the increasing demand for static var generators (SVG) in new energy sites such as offshore wind power, high-voltage, large-capacity SVG has become the preferred technology to meet site needs. The 10kV direct-mounted SVG is connected to the 35kV power grid through a step-up transformer to meet some on-site needs. However, due to the increase in reactive power capacity, it becomes difficult to manufacture the step-up SVG. At the same time, the cost soars and the cost performance drops sharply. Therefore, the launch of 35kV direct-mounted SVG is imperative. With the same current, the capacity of 35kV direct-mounted SVG is 3.5 times that of 10kV direct-mounted SVG, and the larger capacity can meet the current large-capacity reactive power demand site.[0003]Current SVG devices are im...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/18H02M1/092
CPCH02J3/1842H02M1/092Y02E40/10
Inventor 方四安席自强杜小刚
Owner 武汉武新电气科技股份有限公司
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