Hybrid uninterruptible power supply system

Abstract

The invention discloses a hybrid uninterruptible power supply system. A generator is connected with a rapid power dump device. A diesel engine is connected with the generator by a clutch. A battery is connected with a bidirectional transducer which is connected with an electric / generator device. The rapid power dump device is connected in series into a path formed by an input power supply and post load equipment. When the input power supply fails or is interrupted, the path formed by the input power supply and the post load equipment is rapidly interrupted. When the input power supply is normal, the input power supply charges the battery by the generator, the electric / generator device and the bidirectional transducer. When the input power supply fails, the battery is discharged, and provides energy for the post load equipment by the bidirectional transducer, the electric / generator device and the generator, and simultaneously, the starting of the diesel engine is finished. After the diesel engine is normally started, the battery stops supplying power, and the diesel engine drives the generator to supply the power to the post load equipment. The hybrid uninterruptible power supply system provided by the invention supplies timely and reliable uninterruptible power to the post load equipment.

Description

technical field [0001] The invention relates to an uninterruptible power supply system, in particular to a hybrid uninterruptible power supply system. Background technique [0002] With the development of science and technology, the application of large-scale computers, data centers and medical equipment, etc. is becoming more and more extensive. At the same time, various nonlinear loads are increasing, and the requirements for the quality of power grid power supply are getting higher and higher. More and more electrical facilities that are sensitive to power supply quality need uninterruptible power supply to prevent immeasurable losses due to power outages, such as large data centers, data processing centers of banking telecommunication systems, base stations of telecommunication systems, satellite control and detection Any short-term power outage of the medical equipment used in the operation of the center and hospital will cause incalculable losses to users, equipment an...

AI Technical Summary

Problems solved by technology

As the main component that provides power to the load, the DC motor has the advantages of mature technology, high reliability and small output impedance, but because the main component is a mechanical structure, the maintenance cost is high and the response to transient frequency is slow.

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