【正文】 chnology and AC electric drive control technology,AC drive system based on power electronic converter can be realized, especially the development of the large scale integrated circuit and puter control,the performance of AC speed regulation has made great progress,so that mine hoist has been rapid development.At present, the mining hoist is generally used for coal mine coal transportation between surface an underground, and the transportation of materials, monly used in mine hoist has two kinds: one kind is hoist single rope winding mine, another is the tworope friction hoist. This paper chooses is to mine hoist power supply and control method for a parative study of the advantages and disadvantages, and focus on the parison of several control methods of mine hoist, get a better control method.For the work environment is bad, speed control system in frequent starting, braking, acceleration and deceleration, and must adapt to load on the downhill and bumpy road conditions, so the requirements for big motor starting torque, strong overload capacity, initial starting torque of speed control system is small and overload ability is not strong, so in order to adapt to the coal demand development, the speed control system based on slip frequency control appeared , and then the AC speed regulation system based on fieldoriented vector control appeared in our eyes . The work of this paper is pared with the three kinds of control modes to study, so that we can clearly know what kind of speed control mode is the best. The advantages and disadvantages of different scheme are different, the changing speed control mode and result in a smooth starting, speed and reliability, no impact, the traction force is large enough, small energy consumption, simple operation, high ratio of performance to price, improve safety, braking performance and other advantages, it is of great benefit for the coal mine production.The main work of this thesis is to choose the different power supply modes to make a parison of their advantages and disadvantages, and performance characteristics by paring three kinds of control mode, so that the speed field oriented control system can adapt to the present coal mine environment and the requirement of production capacity. Through the description of its principle and advantage, and prospective control mode of future hoist new is the main work of this paper. In this paper, parative study for the power supply mode is on a narrow coal mine power supply system, relates to security, resource conservation to reduce consumption, better use of available resources for maximum benefit. Focus on the operation principle of the three kinds of control mode ,bring people are acquainted with the hoist working characteristics in deepening ,It makes control methods have a better way for the development of matting for the future hoist motor, paring three kinds of control mode, so that we can clearly know the advantages of what kind of control mode, what kind of a way to have any weaknesses, whether can promote domestic hoist speed control mode through the development of a new and better speed control mode practice. Vector control mode is the most obvious manifestation in three control, bined with the most cuttingedge knowledge, can carry on the control through various forms, DSP, chip microputer , PLC can be used for the speed control system, provides us with a more broad stage to realize.For the special environment of coal mine, the safety requirements are quite high, mine hoist used in mine coal transportation between surface an underground, and the transportation of materials, work in the hub of the main passage, so in the dangerous environment of coal mine ,we must take a series of safety protection measures, offer a safety environment for the equipment running, to ensure the safety of staff. Due to hoist operation heat larger and brake sometimes sparks prone , and the power supply voltage is relatively high, from the 380V power supply system prior to now to the development of 1140V power supply system the mainstream, so the safety measures in coal mine is essential. So this paper involve introduce of the explosion, electromagnetic shielding, grounding, cooling and other related knowledge. By parison of the power supply and the parative study of the three kinds of control methods, let’s us know the advantages and disadvantages of voltage is not the same as well as the advantages and disadvantages of different control methods, I believe that through this parison, for the future of coal mine production and motor speed control is good, there is a certain significance for coal mine safety and efficiency.Keywords: mine hoist。因?yàn)楸疚膶?duì)防爆、電磁屏蔽、接地、散熱等相關(guān)知識(shí)都有所涉及介紹，讓我們加強(qiáng)了煤礦安全生產(chǎn)的重要性。對(duì)于煤礦這個(gè)特殊的環(huán)境，其安全要求相當(dāng)高，礦用提升機(jī)用于煤礦井上井下的運(yùn)輸，工作在最主要的樞紐通道中，所以其工作在煤礦這種爆炸危險(xiǎn)環(huán)境相當(dāng)高的地方，必須對(duì)其設(shè)備采取一系列的安全防爆措施，使得設(shè)備運(yùn)行在安全的環(huán)境中，保證工作人員的安全。重點(diǎn)對(duì)三種控制方式的運(yùn)行原理和相關(guān)只是進(jìn)行了介紹，使我們有一個(gè)清晰的認(rèn)識(shí)以便對(duì)將來(lái)提升機(jī)或者電機(jī)的調(diào)速控制方式發(fā)展有一個(gè)更好的鋪墊，對(duì)比三種控制方式，使得我們可以清楚的知道哪一種控制方式的優(yōu)點(diǎn)，哪一種方式有什么缺點(diǎn)，是否能夠通過(guò)不斷的實(shí)踐的出一種新的更優(yōu)的調(diào)速控制方式來(lái)促進(jìn)國(guó)內(nèi)的提升機(jī)調(diào)速控制方式的發(fā)展。通過(guò)對(duì)其運(yùn)行原理和取得的優(yōu)勢(shì)進(jìn)行說(shuō)明，并對(duì)將來(lái)的提升機(jī)新的控制方式的前瞻是本文的主要工作。不同的方案的優(yōu)缺點(diǎn)不同，不過(guò)一次次的更換調(diào)速控制方式使得提升機(jī)具有了起動(dòng)平滑，調(diào)速可靠，無(wú)沖擊，牽引力夠大，能量消耗小，操作簡(jiǎn)單，性價(jià)比高，安全性提高，制動(dòng)性能提升等優(yōu)點(diǎn)，這對(duì)于煤礦生產(chǎn)來(lái)說(shuō)有很大的好處。由于煤礦工作環(huán)境惡劣，調(diào)速系統(tǒng)處于頻繁的起動(dòng)、制動(dòng)、加減速等狀態(tài)，還要適應(yīng)負(fù)載上下坡和顛簸路況等情況，因此要求電動(dòng)機(jī)起動(dòng)轉(zhuǎn)矩大，過(guò)載能力強(qiáng)，最初的調(diào)速系統(tǒng)起動(dòng)轉(zhuǎn)矩并不大并且過(guò)載能力也不強(qiáng)，所以為了適應(yīng)不斷發(fā)展的煤礦需求，從而出現(xiàn)了基于轉(zhuǎn)差頻率控制的調(diào)速系統(tǒng)，緊接著又出現(xiàn)了基于磁場(chǎng)定向的矢量控制的交流調(diào)速系統(tǒng)。目前我國(guó)的煤礦企業(yè)的礦用提升機(jī)一般用于進(jìn)行煤礦井上井下煤炭的運(yùn)輸，以及物資的運(yùn)輸，常用的礦用提升機(jī)有兩種：一種是單繩纏繞式礦用提升機(jī)，另一種則是多繩摩擦式礦用提升機(jī)。使得最初的礦用提升機(jī)性能不高，電路損耗相對(duì)較大，運(yùn)營(yíng)成本高，運(yùn)行可靠性低，并且維修費(fèi)用高，企業(yè)效益低。華北科技學(xué)院畢業(yè)設(shè)計(jì)（論文）礦用提升機(jī)供電與控制方式的畢業(yè)設(shè)計(jì)目 錄設(shè)計(jì)總說(shuō)明： IDesign General Description: III第一章 緒論 1 課題研究背景及意義 1 電機(jī)控制方式的發(fā)展現(xiàn)狀 3 本課題研究的主要內(nèi)容 6 本章小結(jié) 6第二章 供電方式的比較研究 7 配電系統(tǒng) 7 TN系統(tǒng) 7 TT系統(tǒng) 8 IT系統(tǒng) 9 供電方式的比較研究 9 380V與660V供電系統(tǒng)比較 9 660V與1140V供電技術(shù)比較 11 本章小結(jié) 13第三章 控制方式工作原理 14 基于滑差電磁離合器的調(diào)速方式 14 滑差電磁離合器的工作原理 14 滑差電磁離合器的調(diào)速原理 15 滑差電磁離合器的性能特點(diǎn) 16 基于轉(zhuǎn)差頻率控制的調(diào)速方式 17 轉(zhuǎn)差頻率控制的基本原理 17 轉(zhuǎn)差頻率控制的基本規(guī)律 20 低頻電壓補(bǔ)償 22 電壓空間矢量調(diào)制（SVPWM） 22 基于矢量控制的調(diào)速方式 27 三相異步電動(dòng)機(jī)數(shù)學(xué)模型 27 坐標(biāo)變換 29 三相異步電動(dòng)機(jī)在兩相坐標(biāo)系上的狀態(tài)方程 32 矢量控制