基于DSP的变电站综合自动化控制系统研究

doi:10.16180/j.cnki.issn1007-7820.2020.09.013

摘要/Abstract

摘要：

传统变电站的自动化系统多采用单片机作为其内部核心处理器,该系统不仅功能简单且对复杂问题的处理能力较差。针对上述问题,文中开发了一套基于DSP的变电站综合自动化控制系统。该系统通过DSP结合通信、计算机等技术对采集到的数据进行分析处理,实现对变电站设备实时运行状态的监视、测量、控制及协调。实验与测试结果表明,该自动化系统能够较好地完成对变电站内二次设备的自动监测和控制等功能,显著提高了站内各电气设备间数据信息的传递与共享效率。

关键词: 数字信号处理, A/D转换, 测控及保护单元, 通信网络, 自动化控制

Abstract:

Traditional substation automation system mostly uses single-chip computer as its internal core processor. This system not only has simple functions, but also has poor ability to deal with complex problems. In order to solve the above problems, a set of substation integrated automation control system based on DSP is developed in this paper. The system can monitor, measure, controls and coordinate the real-time operation status of substation equipment by analyzing and processing the collected data by DSP combined with communication and computer technology. Experiments and test results show that the automation system can better complete the functions of automatic monitoring and control of secondary equipment in substation, and significantly improves the efficiency of data transmission and sharing among electrical equipment in substation.

Key words: digital signal processing, A/D conversion, measurement and control and protection unit, communication network, automatic control

中图分类号:

TP273

陈贵州. 基于DSP的变电站综合自动化控制系统研究[J]. 电子科技, 2020, 33(9): 75-78.

CHEN Guizhou. Research on Substation Integrated Automation Control System Based on DSP[J]. Electronic Science and Technology, 2020, 33(9): 75-78.

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输入电压/V	电压通道	实测值/V	实测误差/%	结论
120	U_A	120.018	0.015	正常
	U_B	120.044	0.037
	U_C	120.031	0.026
80	U_A	80.052	0.065	正常
	U_B	80.026	0.035
	U_C	80.007	0.008
40	U_A	39.914	-0.215	正常
	U_B	39.946	-0.135
	U_C	39.983	-0.043

输入电流/A	电流通道	实测值/A	实测误差/%	结论
6	I_A	5.995	-0.080	正常
	I_B	5.997	-0.050
	I_C	5.993	-0.116
4	I_A	3.998	-0.050
	I_B	3.996	-0.100
	I_C	3.995	-0.125
2	I_A	1.998	-0.100	正常
	I_B	1.999	-0.050
	I_C	1.996	-0.200

项目		技术要求	分析结果	结论
快速瞬变脉冲	遥信	变位20次	显示正确	正常
快速瞬变脉冲	遥控	遥控20次	动作正确	正常
浪涌干扰	遥信	变位20次	显示正确	正常
浪涌干扰	遥控	遥控20次	动作正确	正常
高频干扰	遥信	变位20次	显示正确	正常
高频干扰	遥控	遥控20次	动作正确	正常