摘要：传统皮带控制系统由高压开关、变压器、低压组合开关等设备连接组合而成，分别放置在不同的列车上，占用距离较长，限制了设备的灵活性，加上各设备间接线繁琐、技术相对不公开，给维修带来极大不便。随着近些年变频和软起动技术的日益成熟，对皮带调速控制的要求越来越高。基于这种趋势，本文设计了皮带控制系统的变频一体化应用。将高压开关、变压器、低压组合开关等高度集成化、一体化，并对皮带实现变频调速控制。控制系统采用了工业中比较成熟的PLC控制，并利用西门子的ProfiBus-DP总线技术，大大增加了控制的可靠性和稳定性。

关键词：皮带控制；一体化；变频

The integrative design of belt control system with frequency conversion

Abstract：Traditional belt control system connected by high-voltage switch，transformer，low-voltage combination switch and other equipments，were placed on a series of train，taking long distance，limiting the flexibility of the equipment. Due to the complex connection between different equipment and few share of technology，it brings great inconvenience to maintenance. With the recent frequency conversion and soft starting technology becoming more mature in recent years，the need of the belt speed control is increasing. Based on this trend，the paper designs the integrative application of belt control system with frequency conversion. Combined with high-voltage switch，transformer，low-voltage combination switch and other equipments，it realizes the control to belt system by frequency conversion. Taking a comparatively mature industrial PLC control in control system and using ProfiBus-DP technology of Siemens，which greatly enhance the reliability and stability of the control.

Key words：belt control integration frequency conversion

前言

目前，煤矿井下皮带控制一般由高压开关、变压器和低压组合开关等构成，实现设备的驱动、启停、综合保护等功能控制。然而，高压开关、变压器和低压组合开关分属于不同的技术领域，技术门槛比较高，一般会由不同的厂家来提供。因此，只能将它们放在一个个的平板列车上连接组合起来，这样距离就会比较长，而采煤时需要经常移动这些设备，就使得运输时十分麻烦。由于这些设备来自不同的厂家，接口兼容性较差，连线就会相对繁琐，一旦发生什么故障，就会需要厂家们共同配合解决，不利于设备的维护。在这种背景下，将高压开关、变压器和低压组合开关等设备整合成一体化已经成为煤矿行业未来发展的一种趋势。

受地质、机电设备等条件的影响，井下皮带运输机需要频繁被启动。……