CONTROL SYSTEM FOR REGULATING BUS VOLTAGE FOR AN ELECTRIC SHOVEL
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United States of America Patent
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Issued Date -
Jun 14, 2012
app pub date -
Dec 9, 2010
filing date -
Dec 9, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A control system for regulating a bus voltage used to power an electric shovel. The system includes a controller for controlling motions of the shovel and for providing a measurement of bus voltage of a bus. The system also includes a shunt resistor located in a current path of the bus and a current transducer for providing a current measurement based on current flowing through the shunt resistor. A converter is then used to regulate the bus voltage of the bus in response to the current and voltage measurements. The system may be retrofitted into older generation shovel drive and control systems.
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