基于TMS320 DSP的动态不间断电源UPS的研究

发布时间：2018-01-19 22:19

本文关键词： 不间断电源 UPS 数字化 DSP 逆变电源　出处：《杭州电子科技大学》2012年硕士论文　论文类型：学位论文

【摘要】：UPS(Uninterruptible Power Supply),即不间断供电电源,是一种含有储能装置(常用蓄电池储能),以逆变器为主要组成部分的恒压、恒频电源装置,主要用于给计算机系统或其他电力电子设备提供优质且不间断的电力供应。目前,UPS电源已经被广泛应用到各个行业,而且随着电子元器件和控制技术的不断创新和发展,UPS的技术也越来越新,型号也越来越多。UPS的控制技术逐渐由传统的基于模拟电路或低档次单片机控制发展到基于DSP(数字信号处理器)的全数字化控制。未来,输入功率因数自动校正技术、智能化故障自诊断检测技术、智能化电池充放电管理及电池性能预测技术、远程网管型UPS集中监控等技术将广泛的应用于智能化UPS电源中,这是UPS电源未来的发展方向。本文以UPS技术的实际应用为背景,在深入了解UPS电源的基本原理、结构、特点及其相关理论知识等基础上,以TI公司生产的数字信号处理芯片TMS320F2812DSP为控制器核心,设计了一种基于DSP的在线式数字化UPS电源。通过对该系统的设计,更进一步的了解了UPS电源的一些关键技术的研究与开发应用。本文首先对UPS电源的分类、基本概念、发展前景、工作原理、相关理论、技术指标进行了简单的介绍,描述了UPS电源中常用电路的基本组成与工作原理,并分别举例加以说明。对UPS电源中的关键技术脉宽调制技术(PWM)、功率因数修正和谐波抑制技术进行了深入的研究和分析,并提出了几种谐波抑制方案。在理论分析的基础之上给出了系统的总体设计框图和软硬件设计方案。本硬件系统的主控制芯片CPU为数字信号处理器TMS320F2812,文中对DSP芯片的功能和特点作了简要介绍,硬件系统主要由整流滤波电路、功率因数校正电路、逆变电路、蓄电池充电电路和保护电路、采样调整电路等几部分组成,对每个电路模块的设计及原理作了详细的讲解。软件设计主要是DSP控制部分,其中软件设计包括主程序以及各个中断子程序,文中给出了各个程序设计的流程图。最后对UPS电源控制系统性能进行了简单的测试,结果表明系统能正常工作本课题所设计的数字化UPS电源具有很强的实用性,可用于单机计算机和一些低功率电子设备的应急供电,具有体积小、重量轻、安全无污染等特点。对于大功率的电子设备,只需要对电源系统做相应的修改即可满足使用需求。本课题将故障检测电路加入系统中,使UPS具有一定的故障检测功能,并加入了市电旁路设计,这也是本设计的一个创新点。最后对本课题所完成的工作做了总结,在对未来工作展望的同时,也提出了该系统硬件和软件上的局限之处和未来所需要进一步完善的功能,以便进行后续的UPS网络化和智能化的开发。
[Abstract]:UPS(Uninterruptible Power supply, or uninterruptible power supply, is an energy storage device (commonly used for storage battery). A constant voltage and constant frequency power supply device with inverter as its main component is mainly used to provide high quality and uninterrupted power supply to computer system or other power electronic equipment. UPS power supply has been widely used in various industries, and with the continuous innovation and development of electronic components and control technology, UPS technology is becoming more and more new. More and more models of UPS control technology from the traditional analog circuit or low-grade single-chip computer control to DSP-based digital control. Input power factor automatic correction technology, intelligent fault self-diagnosis and detection technology, intelligent battery charge and discharge management and battery performance prediction technology. Remote network management UPS centralized monitoring technology will be widely used in intelligent UPS power supply, which is the future development direction of UPS power supply. In this paper, the practical application of UPS technology as the background, on the basis of in-depth understanding of the basic principle, structure, characteristics and related theoretical knowledge of UPS power supply. Based on the digital signal processing chip (TMS320F2812DSP) produced by TI Company, an on-line digital UPS power supply based on DSP is designed. Further understand the UPS power supply of some key technology research and development and application. In this paper, the classification of UPS power supply, basic concepts, development prospects, working principles, related theories, technical indicators were briefly introduced. This paper describes the basic composition and working principle of the common circuits in UPS power supply, and gives examples to illustrate the key technology of UPS power supply, pulse width modulation (PWM). Power factor correction and harmonic suppression techniques are deeply studied and analyzed. On the basis of theoretical analysis, the overall design block diagram and hardware and software design scheme of the system are given. The main control chip CPU of this hardware system is digital signal processor (TMS3). 20F2812. In this paper, the functions and characteristics of DSP chip are briefly introduced. The hardware system is mainly composed of rectifier filter circuit, power factor correction circuit, inverter circuit, battery charging circuit and protection circuit. The design and principle of each circuit module is explained in detail. The software design is mainly DSP control part, and the software design includes the main program and each interrupt subroutine. The flow chart of each program is given in this paper. Finally, the performance of UPS power supply control system is simply tested, and the result shows that the system can work normally. The digital UPS power supply designed in this paper has strong practicability. It can be used in the emergency power supply of single computer and some low-power electronic equipment. It has small volume and light weight. For high-power electronic equipment, we only need to make corresponding modifications to the power supply system to meet the needs of the use. The subject of fault detection circuit into the system. The UPS has certain fault detection function and adds the design of municipal power bypass, which is also an innovation point of this design. In the end, the paper summarizes the work done in this paper, and puts forward the limitations of the system hardware and software and the further improvement of the function in the future while looking forward to the future work. In order to carry on the following UPS network and intelligent development.
【学位授予单位】：杭州电子科技大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TN86;TP368.12

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