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Using Regenerative Converter Units to Recover Over Voltage Energy in AC Drive Systems
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From Hitachi America, Ltd. / Industrial Systems Division
Regeneration occurs in an AC variable frequency drive system when the load overhauls the motor. This can occur when trying to decelerate the load, or when some external force causes the motor to overhaul, causing the motor to act like a generator. The energy contained in the rotating equipment flows into the drive, and is manifested as increased DC bus voltage in the inverter. Products & Services
AC motor starters are used to turn-on and turn-off electric motors and motor-controlled equipment. They use solid-state or electromechanical technologies, and are designed for single-phase or three-phase motors.
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Learn more about AC Motor Starters
Motor starters and contactors are motor-starting devices. They combine a contactor with overload protection and are designed for starting AC or DC motors.
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Learn more about Motor Starters and Contactors
AC motor drives interface controllers to AC motors. They match the control signals (voltage and power levels) as well as the signal type (analog or digital). They also provide power conversion, amplification, and the sequencing of waveform signals.
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Learn more about AC Motor Drives
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Topics of Interest
Both regeneration and dynamic braking (DB) slow down a rotating DC motor and its load, but when should one method be chosen over another, or when possibly should both be used? There are significant...
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Alternating-Current Motors
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Ac induction motors are designed to produce their rated power at a certain speed at a specific line voltage, line frequency, and ambient temperature. These motors will also operate at a...
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Energy, which is being generated during the braking process of fast rotations or heavy masses, used to be converted into useless heat by means of bulky brake resistors. Today, innovative drive...
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