论传统UPS供电系统的改革（下）

The Reforms of Traditional UPS Power Supply System （II）

传统的UPS供电系统存在着可靠性、电流谐波干扰、成本和能源消耗、系统的配置灵活性和可扩展性以及使用维护难度等若干问题，所有这些问题都是由传统UPS设计理念和系统架构决定的，而传统设计理念的症结又可归结为备用能源的选用和配置方法问题。文中在回顾传统UPS产生和发展过程的基础上，讨论了对UPS应具备功能的一些误导和误解，并从能源配置的角度出发，提出了新的改革思路，新的改革方案将使UPS供电系统发生根本性的变革。

The traditional UPS power supply system has many shortcomings, such as low reliability, flexibility and scalability, high cost and energy consumption. It can be easily disturbed by current harmonics and is difficult to maintain. The traditional selection and configuration method of spare power determines the traditional UPS designing concept which gives rise to the problems mentioned above. This paper reviews the development of traditional UPS and discusses some misunderstandings of UPS functionalities. Then the paper proposes a new idea of UPS reformation in terms of energy configuration, which may thoroughly change UPS power supply system.