【作者】 吴渭；

【导师】 邢岩；

【作者基本信息】 南京航空航天大学 ， 电力电子与电力传动， 2003， 硕士

【摘要】 随着用电设备对供电质量的要求越来越高，不间断电源获得了广泛的应用，与此同时UPS的数字化控制成为其发展趋势之一。 文中对UPS逆变器数字化PID控制进行了理论分析和仿真，在此基础之上提出了逆变器电压瞬时值和有效值双闭环的控制方案。设计了用于逆变器数字化控制的采样调理电路，结合TMS320F240的硬件资源，通过软件实现了UPS系统的缓起动和市电跟踪，并改进了逆变器电压瞬时值控制，通过引入输出电流中心值检测，对反馈电压进行补偿，解决了逆变器输出的偏磁问题。 研究了UPS的监控技术，设计了基于TMS320F240和89C51双CPU的UPS监控系统，通过软件实现了UPS系统的故障检测及处理、人机接口和网络通信监控功能。 实验验证了设计方案的可行性和实用性，为以后的研究工作建立了重要的基础。更多还原

【Abstract】 With information technology developing more and more UPS are used. The digital control tends to be one of the promising methods in the UPS control technologyThis thesis discusses the theories of digital control of UPS. The PID control of output voltage feedback is easy to give attention to static and dynamic performance of the control system. Output performance of inverter of UPS is improved when RMS of output voltage feedback is added to PID control system. The hardware and software is designed in order to achieve the digital PID control of inverter of UPS.Supervision based on DSP and MCU for UPS is discusses in this thesis also,which includes malfunction monitoring and protecting,communication between UPS and PC. And the hardware and software of supervision for UPS is designed.Analysis,simulations and experiments have verified the system’s feasibility and practicability. The research in the thesis has paved a way for the further research and application in the digital control of UPS.更多还原