首页>
外国专利>
3 UPS EQUIPPED WITH AUTOMATIC SWITCHING FUNCTION FOR 3 WAY OPERATING MODES BASED ON LINE POWER SOURCE STATE
3 UPS EQUIPPED WITH AUTOMATIC SWITCHING FUNCTION FOR 3 WAY OPERATING MODES BASED ON LINE POWER SOURCE STATE
展开▼
机译：基于电源状态的3种具有自动切换功能的UPS在3种运行模式下均具有自动切换功能
展开▼
页面导航
摘要
著录项
相似文献
摘要
The present invention relates to an uninterruptible power supply device, and more specifically, by automatically selecting and switching the optimum operation mode among three operation modes according to the state of the system power supply, stable power is supplied to the load and high efficiency operation is possible. It relates to an uninterruptible power supply with an automatic switching function of a three-way operation mode based on a system power state. To this end, the present invention measures the RMS voltage and frequency according to the detection of the instantaneous voltage value for each phase of the grid power supply to check whether it is within a preset reference value, and generates the instantaneous voltage value by itself. A system power quality & instantaneous low voltage detector for determining whether or not there is an instantaneous low voltage compared to the voltage; Double conversion mode (or battery discharge mode) according to whether the RMS voltage and frequency measured through the grid power quality & instantaneous low voltage detection unit are within the reference value and determined instantaneous low voltage so that the output power is continuously supplied without abnormalities in the load equipment. ), an operation mode switching & high speed switching control unit for determining switching of any one of an offline standby mode and an offline power quality compensation mode; Inverter & static switch control unit for controlling a static switch that converts power to control an inverter that is supplied to load equipment, and switches to a specific operation mode by a signal from the operation mode conversion & high speed transfer control unit It characterized in that it includes;
展开▼
