Method and device for controlling voltage of catenary supplying electric power to rolling stocks

• US 10,166,885 B2
• Filed: 01/16/2015
• Issued: 01/01/2019
• Est. Priority Date: 01/23/2014
• Status: Expired due to Fees

• Current Assignee: Mitsubishi Electric Corporation
• Original Assignee: Mitsubishi Electric Corporation
• Inventors: Voyer, Nicolas
• Primary Examiner(s): Smith, Jason C
• Application Number:
  US15/100,958
• Publication Number:
  US 20160297323A1
• Time in Patent Office: 1,446 Days
• CPC Class Codes: B60L 2200/26 Rail vehicles
• CPC Class Codes: B60L 2240/12 Speed
• CPC Class Codes: B60L 7/18 Controlling the braking effect B60L7/12, B60L7/14, B60L7/16 take precedence
• CPC Class Codes: B60M 3/02 with means for maintaining voltage within a predetermined range in general G05F
• CPC Class Codes: B60M 3/06 Arrangements for consuming regenerative power
• CPC Class Codes: B61L 27/40 Handling position reports or trackside vehicle data

Abstract

The present invention concerns a method and a device for controlling the voltage of a catenary supplying electric power to rolling stocks. A first rolling stock: —detects a traction command or a regeneration command of a second rolling stock in the neighborhood of first rolling stock, —increases the electric power supplied by the first rolling stock to the motor drive of the first rolling stock when a regeneration command of the second rolling stock is detected, —decreases the electric power supplied by the first rolling stock to the motor drive of the first rolling stock when a traction command of the second rolling stock is detected.

Claims

1. Method for controlling the voltage of a catenary supplying electric power to rolling stocks, each rolling stock comprising a motor drive, characterized in that the method comprises the steps executed by a first rolling stock of:

detecting a traction command or a regeneration command of a second rolling stock in the neighborhood of first rolling stock,

increasing the electric power supplied by the first rolling stock to the motor drive of the first rolling stock when a regeneration command of the second rolling stock is detected and if the first rolling stock is in a coasting mode,

decreasing the electric power supplied by the first rolling stock to the motor drive of the first rolling stock when a traction command of the second rolling stock is detected and if the first rolling stock is in a coasting mode.

2. Method according to claim 1, characterized in that the coasting mode is determined according to a profile of the first rolling stock.

3. Method according to claim 2, characterized in that the method comprises further step of transferring a message to the dispatcher if the traction command or the regeneration command of the first rolling stock is detected.

4. Method according to claim 1, characterized in that the step of detecting a traction command or a regeneration command further comprises steps of

monitoring the voltage on the catenary,

detecting a traction command when the monitored voltage is lower than a first threshold,

detecting a regeneration command when the monitored voltage is higher than a second threshold.

5. Method according to claim 1, characterized in that the traction command or the regeneration command is detected by receiving a message from a dispatcher.

6. Method according to claim 5, characterized in that the method comprises further step of transferring a message to the dispatcher if the traction command or the regeneration command of the first rolling stock is detected.

7. Method according to claim 1, characterized in that the method comprises further step of transferring a message to the dispatcher if the traction command or the regeneration command of the first rolling stock is detected.

8. Device for controlling the voltage of a catenary supplying electric power to rolling stocks, each rolling stock comprising a motor drive characterized in that the device is included in a first rolling stock and comprises:

a processor to execute a program; and

a memory to store the program which, when executed by the processor, performs processes of,

detecting a traction command or a regeneration command of a second rolling stock in the neighborhood of first rolling stock,

increasing the electric power supplied by the first rolling stock to the motor drive of the first rolling stock when a regeneration command of the second rolling stock is detected and if the first rolling stock is in a coasting mode,

decreasing the electric power supplied by the first rolling stock to the motor drive of the first rolling stock when a traction command of the second rolling stock is detected and if the first rolling stock is in a coasting mode.