Method and a system for monitoring and regulating the power consumed by a transport system
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United States of America Patent
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Jul 8, 2008
Grant Date -
Dec 18, 2003
app pub date -
Apr 18, 2003
filing date -
May 3, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A method of monitoring and regulating the power and the energy consumed by a transport system including electrically propelled vehicles, said transport system including a power supply system including one or more power supply substations connected to an external electrical power supply network, said power supply substation or substations supplying energy to traction substations supplying power to power supply line sections having vehicle-mounted current pick-up means connected thereto, each vehicle carrying a power converter which is supplied with power by said current pick-up means and which monitors the power supplied to a traction motor of said vehicle, which method includes the following steps: measuring the instantaneous electrical power and/or energy drawn from the external electrical power supply network by said power supply substation or substations, and if the power or energy drawn from the external network tends to exceed an assigned threshold, sending one or more vehicles a set point acting on the converter on board said vehicle to reduce temporarily the power and/or the speed of rotation of the traction motor.
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