| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for regulating the power demanded by a rail motor. <P>SOLUTION: The system comprises a current collector means cooperating with a catenary to which direct current power is supplied by power supply substations dispersed along a railroad track. The method comprises a step to measure the catenary voltage Vcat at the rail motor, a step to measure the catenary current Icat at the rail motor, a step to evaluate the no-load voltage Vcat<SB>0</SB>of the substation supplying power to the catenary to which the rail motor is connected, a step to evaluate the maximum power available to the catenary based on the following expression with R as the resistance of the catenary: Pmax=(Vcat<SB>0</SB>)<SP>2</SP>/4* R, and a step to limit the power demanded by the rail motor to the power limit Plim less than or equal to the calculated maximum power Pmax. <P>COPYRIGHT: (C)2004,JPO</p> |
