调速

This paper introduces the application of the programmable controller,the direct current velocity modulation system,the frequency inverter and the electronic cam switch in chamfering machine.

介绍可编程控制器、直流调速系统、变频器、电子凸轮开关在倒棱机中的应用。

Based on the conception of fuzzy self tuning PD parameters, an approach of retarder control is proposed, which can fuzzy self-tune the parameters of car retarder control system for hump yard according to speed regulating process.

基于参数模糊在线自校正的原理，提出一种对驼峰车辆减速器控制系统控制参数按调速过程进行模糊在线自校正的控制方法。

The simulating results show that the power factor of the system is obviously improved compared with the common cascade control system.

仿真结果表明该系统的功率因数较普通串级调速系统有明显的提高。

But the thyristor cascade speed regulating method has a lower system power factor.

但是晶闸管串级调速方法存在一个突出的缺点，就是系统功率因数较低。

With mechanical and electrical products distributor Eastern Province following brands:"Foshan City, Guangdong Province Star Transmission Limited" mechanical CVT, Worm Gear reducer,-cycloid reducer, high-speed intermittent segmentation;"Zhejiang Province Speed Reducer Factory stars,"the WP, FC models of cast iron Worm Gear Reducer" Zhejiang Huangyan motor plant "the" new turbot "Lvqiao Motors, explosion-proof motor, frequency conversion electrical, brake motors; Nanjing-controlled motor Ltd."Control of the" Iron Motor, YCT speed electromagnetic motor, and other products.

万华机电同东省总代理的产品有如下品牌：&广东省佛山市星光传动有限公司&的机械无级变速器、蜗轮蜗杆减速机、摆线针轮减速机、高速间歇分割器；&浙江省恒星减速机厂&的WP、FC型号的铸铁蜗轮蜗杆减速机；&浙江黄岩电机厂&的&新菱&铝壳电机、防爆电机、变频电机、刹车电机；南京控特电机有限公司的&控达&铸铁电机、YCT电磁调速电机等产品。

Our major products, ZJ series grate reducers, are part of necessary equipment for coal boilers. It is able to serve as the transmission of chain grate of coal boilers with evaporation volume of 1-130 tons per hour. It can also be equipped with other facilities that need large gear ratio and proper output angular movement and speed regulation.

主要产品ZJ系列锅炉炉排减速机，可用于1-130吨/小时蒸发量的链条式锅炉，供链条式炉排传动使用，是燃煤锅炉必备辅机，也可用在要求速比大、能在适当范围内调速，输出扭矩相当的其他设备上。

One motor driving for each spindle,drum wind,output speed adjustable by inverter.the 12 guage united needle for bothinne and outer rotating suitable for producing colors chain fancy yarn,hollow tape yarn.the especial needle can produce two colors spiral yarn and covered yarn.

单锭单电机，槽筒卷绕，输出变频调速，常规配置12槽内外传一个针筒，可加工链环纱，空心带子纱等，特殊订货可加工双色螺旋纱，包芯纱等花式纱。

Fuzzy control is applied to variable-frequency regulating speed of AC induction motor in this thesis, where one kind of fuzzy controller of speed is designed with Mamdani model. Then the slip frequency control system made up of fuzzy controller is simulated, the simulation results show that its performance is better than that of general PI controller.

论文将模糊控制技术应用于感应电机的变频调速，采用Mamdani模糊逻辑模型，设计了一种转速模糊控制器，并对基于模糊控制的感应电机转差频率控制系统进行了数字仿真，结果表明模糊控制的控制性能优于常规的PI调节器。

Since the formation of the company since the output value, profits and taxes increase, the annual average rate of increase of 42%, The products sell well in 30 provinces and cities, and exports in Nigeria and other non-state country, which for Baishan Hydropower, hydropower plant Yunfeng, Taipingwan hydropower plant transformation VVVF 250t crane for the transformation of energy-saving cycle Karamay sewage treatment equipment, scientific and technological progress awardsby Japan Ling electricity companies and the industry's highly praised,"Lu line" brand crane was rated as one country and other goods, an annual output value of 260 million yuan, profits and taxes 26 million yuan.

公司自组建以来，产值、利税大幅度增长，年平均递增率42%，产品畅销全国30个省市，并出口尼日利亚等非州国家，其中为白山水电厂、云峰水电厂、太平湾水电厂改造的250t变频调速起重机，为克拉玛依改造节能循环污水处理设备，获省科技进步奖，受到日本凌电公司和同行业的高度赞扬，&鲁行&牌起重机被国家评为一等品，年产值达2.6亿元，利税2600万元。

The problems of direct current drive system of finishing mill group in wire production line are raised in this paper, and the key to solving the problems is that taking alternating current requency control system instead of direct current drive system is discussed.

针对某钢铁公司第三型钢厂线材生产线精轧机组原直流传动系统存在的问题，通过技术论证，采用交流变频调速系统取代原直流传动系统，不仅使传动系统故障率大为降低，而且产量也大大增加。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。