An intelligent uninterruptible power supply system

Abstract

The invention discloses an intelligent uninterruptible power supply system, which includes a filter, a rectifier, aninverter, a relay contact, a static switch, a charging protection module, a storagebattery pack and a microprocessor, the microprocessor is respectively connected with the charging protection module, the touch screen, the interface module, the rectifier, the inverter and the relay control circuit, the rectifier is respectively connected with the charging protection module and the filter, and the filter is respectively connected with the main power supply and the static switch. The system is uniformly controlled by the microprocessor, the structure is greatly simplified, and the integration level and the working reliability of the whole system are greatly improved; synchronous conversion between the main power supply and the UPS can be effectively realized through the control of the microprocessor; the communication between the power supply and the touch screen is realized by applying the serial port of the microprocessor, so that the use is more convenient; intelligent control over the storage battery pack is achieved through control of the microprocessor, and compared with a continuous floating charge mode, the service life of the storage battery pack is effectively prolonged.

Description

technical field [0001] The invention relates to a power supply, in particular to an intelligent uninterruptible power supply system. Background technique [0002] With the continuous development of society, electrical equipment has higher and higher requirements for power supply quality. In order to ensure the safety of electrical equipment, an uninterruptible power supply (UPS) is highly valued. Among them, the backup square wave output UPS voltage is widely used because of its small size, light weight, relatively cheap price, high operating efficiency and low noise. However, the traditional backup square wave UPS adopts analog circuit control, the structure is complex, it is difficult to upgrade, it is difficult to implement some advanced control algorithms, and there are some shortcomings in performance. For example, the in-phase switching function is not implemented in most analog controls, so there is a danger of short-circuiting the AC during the switching process, w...

AI Technical Summary

Problems solved by technology

However, the traditional backup square wave UPS adopts analog circuit control, the structure is complex, it is difficult to upgrade and replace, it is difficult to realize some advanced control algorithms, and there are some shortcomings in performance.

For example, the in-phase switching function is not implemented in most analog controls, so that there will be a risk of short circuit in the AC during the switching process, it is inconvenient to communicate with the computer, and it is impossible to realize real-time monitoring and other defects.

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