Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61C—LOCOMOTIVES; MOTOR RAILCARS
  • B61C9/00—Locomotives or motor railcars characterised by the type of transmission system used; Transmission systems specially adapted for locomotives or motor railcars
  • B61C9/38—Transmission systems in or for locomotives or motor railcars with electric motor propulsion
  • B61C9/48—Transmission systems in or for locomotives or motor railcars with electric motor propulsion with motors supported on vehicle frames and driving axles, e.g. axle or nose suspension
  • B61C9/50—Transmission systems in or for locomotives or motor railcars with electric motor propulsion with motors supported on vehicle frames and driving axles, e.g. axle or nose suspension in bogies
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
  • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
  • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
  • B60L2220/00—Electrical machine types; Structures or applications thereof
  • B60L2220/50—Structural details of electrical machines
  • B60L2220/54—Windings for different functions
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
  • B60L2220/00—Electrical machine types; Structures or applications thereof
  • B60L2220/50—Structural details of electrical machines
  • B60L2220/58—Structural details of electrical machines with more than three phases
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
  • B60L2270/00—Problem solutions or means not otherwise provided for
  • B60L2270/10—Emission reduction
  • B60L2270/14—Emission reduction of noise
  • B60L2270/145—Structure borne vibrations
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
  • Y02T10/00—Road transport of goods or passengers
  • Y02T10/60—Other road transportation technologies with climate change mitigation effect
  • Y02T10/64—Electric machine technologies in electromobility
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
  • Y02T10/00—Road transport of goods or passengers
  • Y02T10/60—Other road transportation technologies with climate change mitigation effect
  • Y02T10/72—Electric energy management in electromobility

Definitions

• Electric traction vehicles are usually driven by traction motors located on bogies or a carrier, which in turn are fed via converters. Because of the non-sinusoidal supply voltage of their converters, these traction motors generate high pendulum torques in addition to additional losses and radial force waves. The reaction forces of these pendulum torques often lead to deformations of the bogie or the support of the traction motors with sometimes considerable airborne noise emissions.
• the object is achieved by a method according to claim 1 and an electric traction vehicle according to claim 3 or 4.
• the partial winding systems are preferably formed from the odd-numbered 1,3, 5, .. and even-numbered coil groups 2,4,6, .. or from the coil groups 1 to n and n + 1 to 2n, where n are integers. Further combinations of subsystems are also conceivable.
• Optimizing and adapting the pulse pattern is possible at any time, in particular through software exchange.
• other parasitic effects of the converter supply such as radial force waves and additional losses in the rotor, are sometimes considerably reduced depending on the operating mode.
• the disturbing pendulum moment component is usually the one that is close to a mechanical natural frequency, e.g. of the bogie and without compensation would lead to noise emission and thus noise emissions from the locomotive. So it is e.g. It is conceivable to take stock of the frequency spectra when powered by the same pulse pattern when commissioning a locomotive, and to specify new pulse patterns optimized for eliminating the interfering frequencies in those areas where pendulum torque compensation is necessary or desirable.
• FIG. 2 shows a winding arrangement of a traction motor in a four-pole electrical machine.
• FIG. 1 shows a basic illustration of an electric locomotive, not shown in detail, with two bogies 1 and each with their traction motors Ml, M2 or M3, M4, which drive the associated wheel sets or individual wheels 2.
• Each traction motor M1-M4 has two partial winding systems. This
• Part winding systems M1T1-M4T2 form a double star in the stator connection in each traction motor Ml-M4.
• the partial winding systems M1T1-M4T2 of a traction motor M1-M4 are fed by different converters, in particular pulse-controlled inverters PWR1 and PWR2. It therefore feeds PWR1
• Part winding system M1T2, M2T2, M3T1 and M4T1 and the pulse inverter PWR2 feeds the part winding systems M1T1, M2T1, M3T2 and M4T2.
• FIG. 2 shows an embodiment for the winding arrangement of the stator of a four-pole drive motor with 24 slots.
• the 2xP 4 coil groups of one strand are shown.
• the coil groups SGI and SG3 form a partial winding.
• SG2 and SG4 the other partial winding of the strand.
• the series connection of the coil groups SG1, SG3 and SG2, SG4 is shown.
• a parallel connection of these coil groups SG1, SG2 and SG2, SG4 is also possible.
• the natural frequencies are recorded on the locomotives listed, for example, with their bogies 1. This advantageously already takes place during the commissioning phase, so that at this point in time the the required pulse pattern set is stored in the drive control unit. Instead of exchanging or reworking the bogies 1, it is only necessary to adapt the pulse pattern set in the control device 5. Vibration sensors or microphones on the bogie 1 can be used to detect the disturbing natural frequencies and to prove the improvements made.
• the method according to the invention for pendulum torque compensation can be used in particular in the locomotives described in FIG. 1. However, it is not absolutely necessary to use traction motors with double stars. More than two stars per drive motor Ml to M4 are also conceivable.

Landscapes

• Engineering & Computer Science (AREA)
• Transportation (AREA)
• Mechanical Engineering (AREA)
• Power Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Electric Propulsion And Braking For Vehicles (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

ID=31501803

Family Applications (1)

Country Status (4)

Cited By (3)

Families Citing this family (1)

Citations (4)

• 2002
  • 2002-08-19 DE DE10237866A patent/DE10237866A1/de not_active Withdrawn
• 2003
  • 2003-08-05 EP EP03792128A patent/EP1530534A1/de not_active Withdrawn
  • 2003-08-05 PL PL373619A patent/PL200634B1/pl not_active IP Right Cessation
  • 2003-08-05 WO PCT/DE2003/002630 patent/WO2004018275A1/de not_active Ceased

Patent Citations (4)

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