Tag: Power converters
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Thyristor Power Converters: Function, Applications, Advantages & Disadvantages
Thyristors are semiconductor devices that tend to stay ‘ON’ once turned ON, and tend to stay ‘OFF’ once turned OFF. A momentary event is able to flip these devices into either ON or OFF states, where they will remain that way on their own, even after the cause of the state change is taken away.…
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AC to AC Power Converters with Intermediate DC Link: Types, Features & Applications
This category of AC drives that is often referred to as “Variable Frequency Inverters” is one of the most extensively used drives in industrial motor control applications. Generally, the concept of these inverter drives can be summarized into three parts: We have two main classifications of these AC drives that are based on the aforementioned…
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How cycloconverter is used as a direct frequency converter
The cycloconverter provides direct ac to ac transformation with control over both the output voltage magnitude and output frequency. It employs phase-angle-controlled bridges to synthesize voltages. The most common form is the three-phase to three-phase converter illustrated below: Each output needs two three-phase thyristor bridges. One bridge is used to synthesize positive voltages at the…