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Micro-net control device

A control device and micro-grid technology, applied in the direction of single-network parallel feeding arrangement, etc., can solve the problems of poor practicability, difficulty in realizing micro-grid centralization, coordinated control, etc.

Inactive Publication Date: 2011-08-17
云南电力试验研究院(集团)有限公司
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AI Technical Summary

Problems solved by technology

However, for the grid-connected control of the micro-grid, there is still a lack of integrated devices with micro-grid island detection, micro-grid mode switching control, and synchronous grid-connected control of the micro-grid and its synchronous generators, making it difficult to achieve centralized and coordinated control of the micro-grid
At the same time, the existing synchronizing devices are designed for high-voltage power generation systems, and are not very practical for low-voltage systems such as microgrids

Method used

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Embodiment Construction

[0019] like figure 1 , the present invention adopts DSP+MCU structure, is connected with MCU2 by DSP1 through RS232 communication; DSP1 connects analog quantity input interface 4 through A / D channel, connects frequency acquisition interface 5 through counter through filter shaping 6; DSP passes I / O pin Connect the digital input interface 8 and the digital output interface 9. The DSP of the present invention is connected with the Ethernet interface 10 and the external storage 7 through the bus control unit. The switching value input interface connected with the DSP1 of the present invention has 24 switching value input channels, and the switching value output interface has 16 switching value output channels. The analog quantity input interface formed by the invention connected with the DSP has 8 AC voltage analog input channels and 8 AC current analog input channels. The MCU2 of the present invention is connected with the display unit 11 , the keys 12 and the RS485 port 13 . ...

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Abstract

The invention relates to a micro-net control device, wherein a DSP (digital signal processor) (1) is connected with an MCU (micro-programmed control unit) (2) through RS232 communication; the DSP is connected with an analog quantity input interface (4) through an A / D channel and connected with a frequency acquisition interface (5) by utilizing a counter through filtering and shaping; and the DSP (1) is respectively connected with a switching value input interface (8) and a switching value output interface (9) through I / O pins. The micro-net control device provided by the invention integrates the main control functions of a micro-net and has the obvious advantages of high automaticity, high control accuracy and integrative functions.

Description

technical field [0001] The invention relates to a control device in the field of distributed power generation, in particular to a microgrid control device. Background technique [0002] As a way of distributed power generation application, microgrid is now in the stage of engineering application promotion. However, for the grid-connected control of the micro-grid, there is still a lack of integrated devices with micro-grid island detection, micro-grid mode switching control, and synchronous grid-connected control of the micro-grid and its synchronous generators, making it difficult to achieve centralized and coordinated control of the micro-grid . At the same time, the existing synchronizing devices are designed for high-voltage power generation systems, and are not practical for low-voltage systems such as microgrids. Contents of the invention [0003] The purpose of the present invention is to overcome the above-mentioned existing deficiencies, and propose a micro-grid...

Claims

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Application Information

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IPC IPC(8): H02J3/40
Inventor 严玉廷
Owner 云南电力试验研究院(集团)有限公司
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