Electricity: motive power systems – Induction motor systems – Braking
Patent
2000-04-07
2000-12-26
Riley, Shawn
Electricity: motive power systems
Induction motor systems
Braking
318762, H02P 736
Patent
active
061665134
ABSTRACT:
An electric drive apparatus and method for controlling medium-voltage alternating current motors wherein a multi-phase power transformer having multiple secondary windings provides multi-phase power to multiple power cells which provide four quadrant operation. Each power cell has a single-phase output and is controllable by a modulation controller. The power cells are connected in series thus permitting the maximum output voltage for each cell to be less than the maximum line-to-line voltage. Each power cell can have a rectifier portion to convert input AC-to-DC, capacitors, an output DC-to-AC inverter, a regenerative bridge converter connected in parallel with the rectifier portion and a local modulation controller connected to a master controller.
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Development of a Regenerative Three-Phase Multicell Inverter, Jose Rodriguez, Antonio Gonzalez and Cesar Silva, Department de Electronica, Universidad Tecnia Federico Santa Maria, pp. 1-12, undated, No Date.
Riley Shawn
Robicon Corporation
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