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Converter monitoring system based on digital signal processor (DSP), advanced reduced instruction set computer (RISC) machine (ARM) and Ethernet communication

A monitoring system and converter technology, applied in electrical components, circuit devices, etc., can solve problems such as insufficient processing capacity of control modules, achieve the effects of convenient debugging and operation, expand flexibility, and reduce processing pressure

Inactive Publication Date: 2013-01-23
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the defects in the prior art, the purpose of the present invention is to provide a converter monitoring system based on DSP, ARM and Ethernet communication, which can collect and send the data obtained by the internal calculation of the converter control module, When a large amount of data needs to be sent from the control module to the host computer, solve the problem of insufficient processing capacity of the control module; improve the control function of the converter monitoring system, and can directly control the controller algorithm through the host computer

Method used

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  • Converter monitoring system based on digital signal processor (DSP), advanced reduced instruction set computer (RISC) machine (ARM) and Ethernet communication

Examples

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Embodiment 1

[0024] Such as figure 1 As shown, this embodiment provides a converter monitoring system based on DSP, ARM and Ethernet communication, including: a data acquisition and conversion module, a control module, an ARM module, and a host computer module. The data acquisition and conversion module collects various physical quantities required by the control module through sensors, converts them from analog to digital, and sends them to the control module through optical fibers. The control module is used to control the converter and communicate with the ARM module, which is mainly realized by DSP and its peripheral circuits. The ARM module runs an embedded operating system, uses multi-thread processing function, communicates with the host computer through Ethernet, processes and sends the data from the control module, interprets and processes the data received from the host computer, and sends a message to the control module Related commands. The upper computer module is used to co...

Embodiment 2

[0034] The difference between this embodiment and Embodiment 1 is that the converter cabinets are increased from one group to four groups, and are operated in parallel.

[0035] The working process of this embodiment:

[0036] 1. The data acquisition and conversion module, the control module, the ARM module, and the upper computer are powered on and started, and run the corresponding software. The ARM module and the host computer LabVIEW monitoring software establish a connection through Ethernet, and the host computer issues control commands to configure the corresponding control parameters and operating modes of the converter.

[0037] 2. Precharge the DC side capacitor in the converter cabinet, and the converter enters the standby state.

[0038] 3. The upper computer issues a start command, the control module starts to run the control algorithm, outputs the control signal, and the converter starts to run.

[0039] 4. The data sent by each data acquisition and conversion ...

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Abstract

The invention provides a converter monitoring system based on a digital signal processor (DSP), an advanced reduced instruction set computer (RISC) machine (ARM) and Ethernet communication. A data acquisition and conversion module is used for converting actual physical quantity into digital quantity which is required by a control module; the control module is used for controlling a converter and communicating with an ARM module; the ARM module is used for communicating with an upper computer and the control module, processing and sending data from the control module by using a multi-thread processing function, and explaining and processing the data which are received by the upper computer; and an upper computer module is used for communicating with the ARM module through the Ethernet and operating a display and operation interface. The converter monitoring system has the advantages that the data which are obtained by internal operation of a converter control module can be acquired and sent; when a great number of data are required to be sent from the control module to the upper computer, the problem of low processing capacity of the control module is solved; and a control function of the converter monitoring system is improved, and a controller algorithm can be directly controlled by the upper computer.

Description

technical field [0001] The invention relates to an embedded system device in the field of wind power generation, in particular to a converter monitoring system based on DSP, ARM and Ethernet communication. Background technique [0002] The existing converter monitoring system is mainly composed of the following parts: sensor module, signal conditioning module, data AD conversion module, signal processing module, upper computer, etc., after the underlying data is processed, it communicates with the upper computer through field bus, etc. Communication, further analysis and display in the host computer. The main functions of the signal processing module of this monitoring system are realized by DSP. The signal processing module and the converter control module are relatively independent, and can realize real-time monitoring of various physical quantities in the converter. The main functions are observation, analysis, recording, etc. The disadvantages of this technology are: on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J13/00
Inventor 常怡然张建文
Owner SHANGHAI JIAO TONG UNIV
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