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And the reasonable proposal for the construction the region electrical power system was put forwardThe power load forecast is the basis of the power system planning.With the actual planning of regional development,uses a scientific and effective load forecasting methods forecast plans the local load electric quantity,is an important work to the regional power system planning.This dissertation uses the BP algorithm, proposed a double hidden layer structure artificial neural network to the forecast ultra-short-term power system load.After the simulation with the actual data,the method which this dissertation proposed compared to the traditional linear extrapolation Prediction method average absolute percent error of 2.5 percentage points,ten minute load forecasts achieve the average absolute percentage error are smaller than 2.5%accuracy.

本文利用人工神经网络BP算法，提出了一种双隐层结构的电力系统超短期负荷预测方法，经过对实际数据的仿真实验，本文提出的神经网络超短期负荷预测方法比传统的线性外推法预测平均绝对百分误差降低2.5个百分点，十分钟负荷预测达到平均绝对百分误差小于2.5%的精度。

For increasing the electric power quality of power system,a power quality management system based on electric power Wide-area Net is established,which is a classified and destributed management system,divided into three layers,that is terminal layer;local net power quality data management system;and central data management system,the WAN is used as a communication medium between layers.

摘 要：为了提高电力系统供电的电能质量，江苏电网已建立了一套网络型电能质量管理系统。该系统是一个分层、分布管理系统，系统分成三层，即监测终端、地区电网电能质量数据管理系统和中心数据管理系统，以广域网为层间通信介质。

In recent years, SiC FET power transistor and GaN high electron movability power transistor represent the third generation semiconductor-wide bandgap semiconductor power devices, have advantages of high breakdown voltage, high power density, as well as high output power, high operation efficiency, high operation frequency, wide instant aneous bandwidth, operation in high temperature environment and strong ability of resisting radiation.

近年来以SiC场效应功率晶体管和GaN高电子迁移率功率晶体管为代表的第三代半导体－宽禁带半导体功率器件具有击穿电压高、功率密度高、输出功率高、工作效率高、工作频率高、瞬时带宽宽、适合在高温环境下工作和抗辐射能力强等优点。

This is a professional production the company of new and high technology of equipment of instrument of test of electric power of management high pressure, equipment of test of high pressure of main development electric power and power source, electric power checks instrument appearance, wattmeter to measure an instrument to wait for a product, apply extensively at a variety of industries such as electric power, irrigation works, oil.

这是一家专业生产经营高压电力测试仪器设备的高新技术企业，主要开发电力高压试验设备及电源、电力测试仪器仪表、电力计量仪器等产品，广泛应用于电力、水利、石油等多种行业。

As the junction of transimmting and distributing power, the power transformor is at the core of power network, so its reliability works on power energic quality for amoutful consumers, and the safety of power system even.

电力变压器是传输、分配电能的枢纽，是电力网的核心元件，其可靠运行不仅关系到广大用户的电能质量，也关系到整个系统的安全程度。

Through the static analysis, we think that traditional power is a protogenetic power; Tibetan Buddhism is a peculiar religion form that Indian Buddhism blended into the indigenous culture of Tibetan, it has doctrine, sandhana, ceremony and so on, and forms the religion power of worshipping living Buddha as base. The state power forms in the patriarchal clan system society, but it is thought political coercive power, even violence in the XunHua Tibetan area.

通过静态的分析，我们认为传统部落权力依靠循化藏区内对传统部落制度的文化价值认同的惯性得以维持和延续，是一种原生的权力形态；藏传佛教是印度佛教融入到藏族本土文化之中形成的一种独特的宗教形态，具有教义、修行到仪轨等一整套神秘主义的色彩和强化宗教认同的神圣化的意识形态，由此形成了以活佛崇拜为基础的宗教权力；王朝国家权力形成于以汉族为主体的宗法社会之中，它的强制力的一面依靠传统的宗法制度而被塑造成具有神权色彩的政治权威，然而在循化藏区由于文化认同的关系，王朝国家的政治权威被还原为政治强制力乃至于暴力。

to overcome some disadvantages of low precision,slow dynamic response,unconvenience parameter adjust existing in high-power ultrasonic power supply,it applies intelligent control composed of 8089 microcontroller is proposed.the article introduces the modulation principle of spwm,the composition of high-power ultrasonic power system applying the single chip computer to realize the soft of phase lock loop,the mechanism of work and the software thought.it realizes the low loss,high power factor and the whole performance of the circuit is developed.

摘 要：针对目前大功率超声波电源采用模拟控制电路存在精度低、动态响应慢、参数整定不方便等缺点，采用单片机8089组成智能控制的超声波电源系统。提出了基于spwm技术的双闭环控制策略和应用单片机实现软锁相的工作原理和软件思想，使整个超声波电源实现了低损耗、高功率因数，优化了电路的整体性能。

to overcome some disadvantages of low precision,slow dynamic response,unconvenience parameter adjust existing in high-power ultrasonic power supply,it applies intelligent control composed of 8089 microcontroller is proposed.the article introduces the modulation principle of spwm,the composition of high-power ultrasonic power system applying the single chip computer to realize the soft of phase lock loop,the mechanism of work and the software thought.it realizes the low loss,high power factor and the whole performance of the circuit is developed.

寂寞网民何时&回家吃饭&？基于单片机8089的超声波电源控制技术的研究。裴玖玲屈百达□摘要：针对目前大功率超声波电源采用模拟控制电路存在精度低、动态响应慢、参数整定不方便等缺点，采用单片机8089组成智能控制的超声波电源系统。提出了基于spwm技术的双闭环控制策略和应用单片机实现软锁相的工作原理和软件思想，使整个超声波电源实现了低损耗、高功率因数，优化了电路的整体性能。

Company's products mainly include two parts: i power far for the power supply, communication power, military power supply, custom power supply and other kinds of non-standard; ii battery maintenance battery internal resistance tester Products, a variety of battery capacity and so on-line monitor.

公司产品主要包括两部分：㈠电源远供电源、通信电源、军用电源、各种非标定制电源等；㈡蓄电池维护产品蓄电池内阻测试仪、各种容量的蓄电池在线监测仪等。

Special line: PET bottles to send the wind line, PET bottles transmission line, eight-treasure Li transportation, storage assembly line speed chain, refrigerator-line detection of, stainless steel transmission lines around with CPT, conveyor Store line, groove belt, transportation of finished Line, the size and quality control systems, improve water vat, with tailgate climbing belt, with the assembly line stands, the knife-edge transition belt turn, to roll lines, cell delivery systems, computer assembly lines, power assembly lines, power lines Raceway , To send the wind-line, high-speed sorting lines, transmission lines Raceway, drum line, after the assembly lines overhang, the chemical industry transmission lines, aging transmission lines, Tetra transmission lines, transmission lines plate chain, chain lost keel box line, spiral Chain plate line, spiral belt, a motorcycle transmission lines, motorcycle assembly line, climbing belt, a belt transmission line group, bottles of beer delivery systems, aerodynamic balance suspended, the lines between the pneumatic hoist, automotive transmission lines, light-top Transfer or devices, thermal plastic packet transmission line, stretching line wheel, food delivery lines, transmission lines, transmission lines climbing boxes, fruit cleansing transmission lines, the level of circulating conveyor chain, no power lines Raceway, no power telescopic Raceway lines, lines between the hoist, the letter-box sorting systems, conveyor suspension, tobacco conveyor, the parcel sorting conveyor systems, packet transmission lines, packet transmission line combinations, straight plate section, gravity-shelf access device , Heavy-duty power lines Raceway, heavy-duty conveyor chain, chain of beads to lose face envelope, turning plate, vehicle loading and unloading conveyor, the assembly line, assembly line, automatic transmission storage systems, feeding

特殊流水线：PET瓶风送线，PET瓶输送线，八宝粥输送骊，倍速链储装配线，冰箱检测线，不锈钢输送线，彩管绕带机，仓储输送线，槽型皮带机，成品输送线，尺寸与质量检测系统，大桶水提升设备，带挡板爬坡皮带机，带灯架装配线，刀口过渡转弯皮带机，地滚线，电池输送系统，电脑装配线，动力装配线，动力滚道线，风送线，高速分拣线，滚道线输送系统，滚筒线，后悬装配线，化工行业输送线，老化输送线，利乐包输送线，链板输送线，龙骨链输箱线，螺旋链板线，螺旋皮带机，摩托车输送线，摩托车装配线，爬坡皮带机，皮带输送线组，啤酒瓶输送系统，气动平衡吊，气动线间提升机，汽车输送线，轻型顶升移载装置，热塑膜包输送线，伸缩滚轮线，食品输送线，输送线，输箱爬坡线，水果输送清洗线，水平循环链式输送机，无动力滚道线，无动力伸缩滚道线，线间提升机，信盒分拣系统，悬挂输送机，烟草输送机，邮包输送分拣系统，邮包输送线，邮包组合输送线，直段板式机，重力式货架存取装置，重型动力滚道线，重型链式输送机，珠面链输包线，转弯板式机，装卸车输送机，装配流水线，装配线，自动仓库输送系统，上料机

I hope that this success is just the first in a long series.

我希望这只是成功的开始。

Three dimensional stresses on the interface of tire and soil, tire deflection and soil sinkage are measured.

测试轮胎——沙土界面上的三向应力、轮胎变形和沙土沉陷；建立考虑剪切应力对沙土承载特性产生影响的车轮牵引性能预测模型；分析车轮作用下土壤的纵向稳定性。