Uninterruptible power supply with unstable voltage

What is an uninterruptible power supply (UPS)?

The term “uninterruptible” refers to the primary objective of a UPS, which is to always be available and thus uninterrupted. Moreover, a UPS can also function as a filtering system that suppresses fluctuating frequencies and voltage spikes that may occur in the main grid.

Why do we need uninterruptible power supplies?

However, during transmission and distribution, it is subject to voltage sags, spikes and outages that can disrupt computer operations, cause data loss and damage equipment. The uninterruptible power supplies protect the connected equipment from power problems and provide battery backup during power outages.

What is a dynamic uninterruptible power supply?

For large power supplies, a dynamic uninterruptible power supply (DUPS) can be used. The synchronous motor/alternator is connected to the mains power supply through a choke. Flywheel stored the energy. In the event of a line failure, the stored current control keeps the load driven until the power of the flywheel is exhausted.

Can a UPS system provide continuous power during a power outage?

Several recent studies have focused on the design of UPS systems to provide continuous power under normal or abnormal power conditions, including power outages. Such UPS systems use energy storage technologies such as batteries or flywheels to provide power to loads in the absence of applied power.