Ankara High Frequency Uninterruptible Power Supply Processing

What is an uninterruptible power supply (UPS) system?

Power distortions such as power interruptions, voltage sags and swells, voltage spikes, and voltage harmonics can cause severe impacts on sensitive loads in the electric systems. Uninterruptible power supply (UPS) systems are used to provide uninterrupted, reliable, and high-quality power for these sensitive loads.

What is a rotary UPS system?

Rotary UPS systems use the stored kinetic energy in the electric machines to provide power to the load when a power outage occurs. There are different configurations for rotary UPS systems. The simplest topology consists of an AC motor and an AC generator, which are mechanically coupled.

What is a ferroresonant standby UPS system?

This topology is called ferroresonant standby UPS system. The transformer also acts as a low-pass filter that cancels out switching frequency from the output voltage of the DC/AC inverter. On the other hand, the transformer stores electromagnetic energy in the core and acts as a buffer when a power outage occurs.

What is a hybrid static/rotary UPS system?

Hybrid static/rotary UPS systems combine the main features of both static and rotary UPS systems. They have low output impedance, high reliability, excellent frequency stability, and low maintenance requirements . Typical configurations of hybrid static/rotary UPS are depicted in Fig. 18.11. They are usually used in high-power applications.