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DSP-based digital excitation controller data acquisition and processing system

A data acquisition and processing system technology, applied in the direction of controlling generators, AC network circuits, electrical components, etc. through magnetic field changes, can solve the problem that data acquisition and processing capabilities cannot meet the needs of the development of excitation controllers, and achieve simplified hardware devices Effect of design, improved speed and accuracy, improved responsiveness

Inactive Publication Date: 2006-05-24
TIANJIN UNIVERSITY OF TECHNOLOGY
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AI Technical Summary

Problems solved by technology

At present, whether it is an analog excitation regulator or a digital excitation controller with a single-chip microcomputer as the core, its data acquisition and processing capabilities cannot meet the needs of the development of the excitation controller.

Method used

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  • DSP-based digital excitation controller data acquisition and processing system
  • DSP-based digital excitation controller data acquisition and processing system
  • DSP-based digital excitation controller data acquisition and processing system

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Embodiment

[0018] Embodiment: a kind of data acquisition and processing system of digital excitation controller based on DSP, it is characterized in that it is by the interface circuit of frequency measurement circuit, preprocessing circuit, analog-to-digital converter ADS8364 and DSP TMS320F2812, exchange data acquisition circuit , switching value acquisition circuit, phase-shifting pulse forming and power output circuit, the output end of the front-end circuit carrying the switching value and analog data signal is connected to the input end of the preprocessing circuit, and the output end of the preprocessing circuit is connected to the input end of the preprocessing circuit. The AC data acquisition circuit is connected to the input end of the switching value acquisition circuit, the output end of the AC data acquisition circuit and the switching value acquisition circuit is connected to the input end of the interface circuit of DSPTMS320F2812, and the data of the data processing circuit...

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Abstract

The system is composed of frequency measurement circuit, preprocessing circuit, interface circuit between ADC and F2812, AC data acquisition circuit, circuit for collecting switching values, phase shifting pulse forming circuit, and power output circuit. Advantages of the invention are: (1) combining with relevant DSP programming, the device simplifies design of hardware; (2) using DSP chip contraposed to area of motor and motion control; (3) AC sampling is adopted in data acquisition unit so as to omit electric quantity transmitter in excitation controller and simplify hardware spending and reduce workload for system maintenance; (4) using data calculating and processing capabilities of DSP to raise speed and precision for collecting data as well as to raise real time response of excitation controller.

Description

(1) Technical field: [0001] The invention belongs to the technical field of data acquisition for an excitation controller of a synchronous generator in a power system, in particular to a DSP-based digital excitation controller data acquisition and processing system for improving the accuracy and speed of data acquisition and processing. (two) background technology: [0002] The excitation regulator is an important part of the synchronous generator system and plays an important role in maintaining the normal operation of the generator and the stable operation of the power system. Its main functions are reflected in the following aspects: (1) Control the terminal voltage of the generator at a given level; (2) Control the distribution of reactive power; (3) Improve the stability of parallel operation of synchronous generators and improve the power system (4) Provide limit and protection functions for generators and improve the sensitivity of relay protection. With the increase...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P9/14H02J3/00
Inventor 周雪松马幼捷吴平安张跃均邵宝福康文广安晓东
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
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