基于VB和DLL技术的供水系统变频控制的实现  

Realization of frequency control of water supply system on the basis of VB and DLL

作　　者：解韶峰[1] 李爱莲[1] 

机构地区：[1]包头钢铁学院信息工程学院,包头014010

出　　处：《信息技术》2004年第2期14-15,53,共3页Information Technology

摘　　要：介绍了一种以VB6.0为开发工具,采用DLL技术实现的变频调速供水系统,通过计算机控制变频器进而控制三相异步电机驱动机械装置实现供水系统的自动控制与仿真。本文详细阐述了该系统的构成、工作原理、控制算法、手自动切换方式及数字滤波技术等。系统经运行测试,各项功能、指标均满足实验要求。The paper introduces a kind of realization of frequency control about water supply system on the basis of VB and DLL, with computer controlling frequency converter and with frequency converter controlling three-phase asynchronous motor, which drives mechanism, automatic control and emulation of constant pressure water supply subsystem are achieved. The paper describes the system structure, working principle, control algorithm, manual/auto switch mode and digital filtering technique in detail. The system is launched into application and all performances suit to the demands.

关 键 词：DLL 变频控制 VB 6.0 数据采集 

分 类 号：TP273.5[自动化与计算机技术—检测技术与自动化装置]