pwm交流斩控技术的交流稳压电源设计论文

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1、课程设计名称：《电力电子技术》设计论文题目：PWM交流斩控技术的交流稳压电源简单设计专业：电气工程及其自动化班级：姓名：学号：19课程设计任务书一、设计题目：PWM交流斩控技术的交流稳压电源简单设计二、设计任务三、设计计划：第一天选择课程设计题目,确定课程设计任务第二天根据课程设计任务进行查阅资料第三天进行整理资料及进行设计第四天进行可行性分析第五天进行电脑录入输出四、设计要求指导教师：教研室主任：时间：年月日19摘要近几年来，随着我国经济建设的发展，通信设备和通信网点在全国各地迅速增长，通信手段越来越先进。在各种程控数字交换

2、设备和数字传输网得到广泛应用的同时，对系统供电设施的要求也越来越高。目前，国内的各类程控电源已相继投入市场，通信电源系统正在逐步向集中监控、少人职守或无人职守的方向发展[1]。早期的供电方式为集中供电，即供电设备集中和供电负载集中。这种方式的优点是：整流器、蓄电池、监控和配电设备都集中放置在配电室，各种电压的电池组都放置在电池室，因而供电容量大，且无须考虑电池兼容问题，供电设备的干扰也不会影响主通信设备。但是此种方式也有很多缺点：设备体积和重量较大，供电线路笨重，系统扩容困难。为改进这些不足，分散供电方式逐渐得到广泛的使用。所

3、谓分散供电，就是指供电设备有独立于其他供电设备的负载，即负载分散或电池与负载都分散。此种方式的优点包括：占地面积小，节省材料，较低的损耗，运行维护费用低，供电可靠性高等等。无论哪种方式供电，程控数字交换设备一般都以直流电源供电为主。直流电源又由基础电源和机架电源构成。基础电源是指包括整流器、蓄电池、监控和配电设备在内的直流供电系统。机架电源则是指交换机上的插件电源。对于基础电源来讲，为产生所需要的各种直流电压（一般为-48V，也有少量采用-24V），都需要将工频电网的单相220V或三相380V交流电压进行AC/DC和DC/DC

4、变换。因此，变换器性能的好坏直接关系到整个通信电源系统的供电质量。本设计利用PWM交流斩控技术,对传统的交流稳压电源进行了改进,性能照以往的稳压电源有了很大的提高。19目录1宗述·····························································12系统校正中的基本问题··········································12.1被控对象·····················································1

5、2.2性能指标····················································12.3系统带宽的确定··············································23串联综合法校正原理············································33.1原理概述·····················································33.2公式推导··························

6、···························33.2.1传递函数计算··············································33.2.2相角裕度计算19··············································53.3总结求法······················································74校正实例·····················································

7、···84.1设计要求·····················································84.2设计步骤·····················································85结论···························································106设计体会·······················································11参考文献··········

8、···············································1219第一章前言1．1应用背景和选题目意义随着高新技术的发展，越来越多的高精密负载对输入电源，特别是对交流输入电源的稳压精度要求越来越高。但是，由于电力供求矛盾的存在，市电电网电压