On-line type digital electricity generating system with UPS function

Abstract

The invention relates to a motor, and in particular belongs to an online digital generator system with UPS function. The technical proposal adopted by the invention is as follows: the invention consists of a commercial power controllable rectifier circuit with one end connected with commercial power input and a by-pass control circuit and the other end connected with a back-up battery charging management circuit, a back-up battery pack, a generator controllable rectifier circuit and a common inverter circuit; the back-up battery charging management circuit is connected with the back-up battery pack; the generator controllable rectifier circuit is connected with a generator; the common inverter circuit is connected with the by-pass control circuit; and the by-pass control circuit is connected with a display control circuit and output. The online digital generator system has the advantages of having function of online adjusting the quality of a power supply, and solving the phenomena frequently occurring in electric network, such as electric surge, high-voltage spike pulse, transient overvoltage, voltage sag, electrical wire noise, frequency deviation, sustained low voltage, commercial power interruption and so on.

Description

technical field [0001] The invention relates to a motor, in particular to an online digital generator system with UPS function. technical background [0002] In recent years, with the development of social informatization, places such as highway toll stations, banks, schools, securities, medical, military, aerospace and other places have become more and more demanding on the quality of power supply, and in some places even It is the case of momentary power failure. As a result, an online UPS with the ability to adjust power quality and provide backup power is essential. Since the online UPS backup power supply needs to be equipped with a battery pack, if the UPS backup power supply time is long, the battery capacity is large, the battery pack is huge, and the price is expensive, and the maintenance cost of the battery pack is correspondingly high. If the battery pack capacity is reduced UPS backup power supply time is not long enough. [0003] In some occasions, in order ...

AI Technical Summary

Problems solved by technology

Usually, there are two ways to use these two backup power sources: the first way is the combination of rotating and static, because the rotating generator part in the online UPS is a DC charging motor, when the UPS uses the battery to discharge, the motor does not start, only When the battery capacity is consumed to a certain limit, it starts to run and charge the battery pack. This mode generally needs to be equipped with a large-capacity battery, and the maintenance cost of the battery is relatively high.

The second way is the independent operation mode. In this way, it is inevitable that there will be a short-term power failure due to the midway switching of two power sources (UPS switching to the generator). This is not advisable in some occasions where power failure is not allowed, and this kind of The separate operation mode has low reliability, low degree of automation, and cannot achieve the purpose of energy saving and emission reduction

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