dsp的双极性可逆pwm直流调速系统设计.doc

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dsp的双极性可逆pwm直流调速系统设计,dsp的双极性可逆pwm直流调速系统设计2.9万字52页摘要随着时代的不断进步,社会发展越来越信息化、现代化,人们的消防安全意识也在随着增强,近年来,eps供电系统以其特有的优越性和环保性在消防应急照明等场合得到了日益广泛的应用。与eps相比而言,ups除了须具有对负载不间断供电的能力之外,还需要对输入的市电进行稳压、...
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DSP的双极性可逆PWM直流调速系统设计
2.9万字 52页


摘 要
随着时代的不断进步,社会发展越来越信息化、现代化,人们的消防安全意识也在随着增强,近年来,EPS供电系统以其特有的优越性和环保性在消防应急照明等场合得到了日益广泛的应用。与EPS相比而言,UPS除了须具有对负载不间断供电的能力之外,还需要对输入的市电进行稳压、滤波处理,来得到较高质量的电力输出,通常适用于对计算机、通信设备、网络设备等精密仪器的电力供应,以确保设备运行过程中的数据安全,其制作成本较高而EPS不需要对市电进行稳压,一般用于对电能质量要求不高的设备,在市电故障时,作为应急电源供负 载使用,但对系统的可靠性要求较高,其制作成本相对低廉。
本文主要从以下几个方面对EPS系统进行了分析和研究:
1.针对具体应用场合的要求,给出了系统逆变环节、充电环节、切换环节等具体实现方案。
2.为提高系统的负载适应能力,对死区补偿、切换控制方式、逆变系统控制方式等影响系统输出性能和可靠性的诸多因素进行了研究:对冲击性负载的起动控制方式进行了分析,并提出了具体的解决方案。
3.设计了键盘监控子系统,能够实时监控EPS系统的运行状态。
关键词:EPS;SPWM;死区;键盘监控



Abstract
With the continuous progress of the era, the society has taken on more and more modernization. At the same time, the focus of people's fire protection is increasing with it. In recent years, EPS power supply system is widely used in fire fighting and emergent lighting cases because of its predominant performance and good environment protection. compared with EPS, UPS has the capability of providing uninterruptible power for loads, furthermore, to get high quality power of output voltage, it has to deal with the input power, such as stabilizing voltage, filtering ripple, etc. It usually applies to the power provision of precise apparatus like computer, communication equipment and network equipment, etc. as a result, the cost of UPS is higher relatively. While EPS need not stabilize the input power, usually being fit for the loads which do not require high quality power. when the input power is abnormal, it can be used as emergency power. Generally, the requirement of EPS's reliability is high and the cost is low comparatively.
This paper studies the operating principle and basic components of EPS system as following points:
1. According to the request of a given application case, the implement projects of inverting, charging and switching are given in this paper.
2. To improve the adaption capability to all kinds of loads, the factors of affecting system's performance and reliability, including the compensation of dead time, the mode of switching controlling, the controlling method of inverter, etc, are studied. furthermore, the control modes of large starting current loads are researched under the rated voltage and the settlement projects are given accordingly.
3. A liquid display subsystem with the function of keyboard operating is presented in the paper and the user can monitor the system's states through it conveniently.

Keywords: emergency power supply;SPWM;dead area; keyboard monitoring


目 录
摘要 Ⅰ
Abstract Ⅱ
1 概述 III
1.1 现代电力电子技术的发展 1
1.2 EPS供电系统的特点与工作原理 3
2 EPS逆变系统的研究与实现 6
2.1 脉冲宽度调制技术 6
2.2 SPWM逆变电路的谐波分析 11
2.3 逆变系统的硬件组成 12
2.3 逆变系统的数字化控制的实现 20
2.4 死区对输出波形的影响及补偿方法 24
3 PWM变流器的控制方法 26
3.1 逆变器的控制策略 26
3.2 正弦波脉宽调制技术(SPWM) 29
3.3 数字PID的基本原理 32
3.4 PWM逆变器控制策略 34
3.5 PWM整流器控制策略 37
4 EPS切换电路设计和系统的保护 38
4.1 切换电路的控制方式 38
4.2 EPS系统的保护 39
5 EPS键盘监控系统 41
5.1 监控系统的硬件组成 41
5.2 键盘监控系统的软件设计 44
总结 47
参考文献 47
致谢 48


参 考 文 献
[6] 潘新民,王燕芳.微型计算机控制技术[M].北京:电子工业出版社,2003.
[7] 涂时亮,张友德.单片微机控制技术[M].上海:复旦大学出版社
[8] 陈道炼编著.[M]DC-AC逆变技术及其应用.北京:机械工业出版社,2003.11.
[9] 张崇巍,张兴编著.[M]PWM整流器及其控制.北京:机械工业出版社,2003.5.
[10] 徐维祥.单片机原理及应用[M].大连:大连理工大学出版社,1996.
[11] 王兆安.电力电子技术[M].北京:机械工业出版社,2003.
[12] 教育部高等教育司,北京市教育委员会.高等学校毕业设计(论文)指导手册[M].北京:高等教育出版社,经济日报出版社