Inverter

Components Static inverter plant 2

Inverter

Main article: Inverter (electrical)

The inverter is usually installed in a building called the valve hall. Since the mid 1970s solid-state devices such as thyristors are used. Many thyristors are assembled into a module, the thyristor tower. The thyristor towers can stand on insulators on the floor or hang from insulators from the ceiling. Thyristor inverters require voltage from the AC network for commutation, but insulated gate bipolar transistors used in some HVDC designs can provide power to a de-energized AC system.

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Inverter (electrical)

An inverter is an electrical or electro-mechanical device that converts direct current (DC) to alternating current (AC); the resulting AC can be at any required voltage and frequency with the use of appropriate transformers, switching, and control circuits.

Static inverters have no moving parts and are used in a wide range of applications, from small switching power supplies in computers, to large electric utility high-voltage direct current applications that transport bulk power. Inverters are commonly used to supply AC power from DC sources such as solar panels or batteries.

The electrical inverter is a high-power electronic oscillator. It is so named because early mechanical AC to DC converters were made to work in reverse, and thus were "inverted", to convert DC to AC. The inverter performs the opposite function of a rectifier.

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