• 概述

矿井提升机电控系统，采用先进的矢量控制变频调速技术完成提升机的四象限控制，用于由鼠笼电机或绕线电机转子短接拖动的各种提升机。既可用于新矿井安装，又可用于老矿井改造，是一套性能在国内居靠前水平的矿山提升机电控系统。特别是在多绳、多水平、双机、斜井等复杂运行场合，其优越性更为明显。

Summarize

The mine hoist electromechanical control system adopts the advanced vector control frequency conversion speed regulation technology to complete the four-quadrant control of the hoist, which is used for all kinds of elevators driven by the squirrel cage motor or the rotor of the winding motor. It can be used for both the installation of new mines and the transformation of old mines. It is a set of mine hoisting electromechanical control system with the highest performance in China. Especially in the multi-rope, multi-level, dual machine, inclined shaft and other complex operating occasions, its advantages are more obvious.

• 功能特点

系统由主控制台、调速系统、外部测控元器件组成。

主控台是该电控系统中的核心设备，采用技术先进、性能可靠的西门子PLC可编程控制器，运用现场总线方式，完善地处理了安全回路双线制和全部提升工艺要求的控制问题，同时还是用公司自行研制生产的多种检测、控制模块和显示仪表完成了提升机运行过程中应有的逻辑控制，时间和速度控制，按行程的速度给定、PID速度闭环控制和各种情况下的安全保护等控制功能。

调速系统可以是高压变频柜、直流调速柜、低压变频柜，采用进口西门子、ABB或国内一线品牌作为主要部件，实现了高转矩、高精度、宽调速范围驱动，配合制动单元及电阻形成两象限运行，还可以采用具有能量回馈电网功能的变频器，形成四象限运行变频柜，具有良好的节能效果。变频器输入功率因数高，电流谐波成分少，无需功率补偿和谐波抑制设备。该产品具有低速输出转矩大，过载能力强，保护功能齐全，维护简单，可靠性高等特点。通过各种故障检测电路，可以保障变频器及电机可靠安全运行。

外部测控元器件由速度测控部分、压力测控部分、位置测控部分、深指测控部分组成。

采用性能优越的进口可编程控制器作为主要控制器件，两套PLC相互冗余，构成安全回路双线制;多种控制方式:自动开车、常规开车、低速开车、半速开车、应急开车

保护功能:提升容器过卷保护;减速段过速10%保护;等速段超速15%保护提升容器接近井口速度超过2m/s;错向保护;深指失效保护;通讯错误;

主回路过电压或接地;电机定子、转子回路故障;制动油路系统故障;轴编码器失效;钢丝绳滑动超限;润滑油欠压;润滑油超温;制动系统油温偏高;主机轴瓦过热;信号电源接地、欠压;制动油故障;闸瓦磨损、闸盘偏摆、弹簧疲劳等。

Functional characteristics

The system consists of main console, speed control system and external measurement and control components.

The main control board is the core equipment of the electronic control system, which adopts the advanced technology and reliable performance of Siemens PLC programmable controller, and uses the fieldbus mode to perfectly deal with the control problems of the safety loop dual-wire system and all the upgrading process requirements. At the same time, it also uses a variety of detection, control modules and display instruments developed by the company to complete the logical control, time and speed control, speed setting according to the stroke, PID speed closed-loop control and security protection in various cases.

The speed control system can be a high voltage frequency conversion cabinet, DC speed control cabinet, low voltage frequency conversion cabinet, using imported Siemens, ABB or domestic first-line brands as the main components, to achieve high torque, high precision, wide speed control range drive, with the brake unit and resistance to form a two-quadrant operation, you can also use a frequency converter with energy feedback power grid function to form a four-quadrant operation frequency conversion cabinet. It has good energy-saving effect. Inverter input power factor is high, current harmonic components are less, no power compensation and harmonic suppression equipment. The product has the characteristics of low speed output torque, strong overload capacity, complete protection function, simple maintenance and high reliability. Through various fault detection circuits, the reliable and safe operation of the inverter and motor can be guaranteed.

The external measurement and control component is composed of speed measurement and control part, pressure measurement and control part, position measurement and control part and deep indication measurement and control part.

The imported programmable controller with superior performance is used as the main control device, and two sets of PLCS are redundant to form a double-wire system of safety loop. A variety of control methods: automatic driving, conventional driving, low speed driving, half speed driving, emergency driving

Protection function: Improve container overvolume protection; 10% over-speed protection in deceleration section; 15% overspeed in the constant velocity section of the protection lifting vessel approaching the wellhead at a speed exceeding 2m/s; Wrong direction protection; Failure protection; Communication errors;

Main loop overvoltage or ground; Motor stator, rotor loop failure; Brake oil circuit system failure; Shaft encoder failure; Wire rope slip out of limit; Lubricating oil underpressure; Lubricating oil overtemperature; Brake system oil temperature is high; Main engine bearing overheat; Signal power supply grounding, undervoltage; Brake oil failure; Brake shoe wear, brake disc deflection, spring fatigue, etc.