Patent CZ-297154-B6 (CZ)
Title: Compensation method of endangering currents emitted from traction drive of rail vehicle power circuit into railroad circuit and circuit arrangement of a compensator for making the same
Inventor: BUBELA TOMAS
IPC: B60L9/00
Filed: 2004-12-07
Abstract: The invented method of compensating endangering currents emitted from traction drive of a driving rail vehicle power circuit into a railroad circuit is characterized in that instantaneous amplitudes, frequencies as well as phases of driving currents (HP) are indicated of a driving rail vehicle (HV) sensor (C1) along with endangering currents (OP) being generated by a traction drive (TP), whereby based on this information being processed in both a first control unit (RIA) and a second control unit (RIB) compensation currents are generated in an inverter (INV) after the driving currents (HP) and the endangering currents are evaluated and after information about these currents have been supplied to the inverter (INV). Said compensation currents correlate with the endangering currents (OP) as far as appropriate instantaneous amplitude, frequency and phase are concerned, wherein said compensation currents (KP) are supplied to a power circuit (SO) of the traction drive (TP) in phase opposition relative to the phase of the endangering currents (OP) to thereby causing compensation or significant suppression of the endangering currents (OP) in the power circuit (SO) and thus in the railroad circuit (KO) below required limit. In a compensator circuit used for carrying out the method the first terminal (C1-1)of the sensor (C1) is connected to both the eighth terminal (RIA-8) of the first control unit (RIA) and to the sixth terminal (RIB-6) of the second control unit (RIB), while said sensor (C1) second terminal (C1-2) is connected to both the seventh terminal (RIA-7) of the first control unit (RIA) and the fifth terminal (RIB-5) of the second control unit (RIB), whereby the first terminal (TS-1) of a trolley collector (TS) is connected to both the first terminal (TP-1) of the traction drive (TP) and the first terminal (TJ-1) of a transformer unit (TJ) while the second terminal (TP-2) of the traction drive (TP) is connected to both the second terminal (TJ-2) of the transformer unit (TJ) and the first terminal , (R-1) of the driving vehicle (HV) frame (R) while the third terminal (TJ-3) of the transformer unit (TJ) is connected to the second terminal (INV-2) of the inverter (INV), while the fourth terminal (TJ-4) of the transformer unit (TJ) is connected to the first terminal (INV-1) of the inverter (INV), whereby the fifth terminal (INV-5) of the inverter (INV) is connected to both the tenth terminal (RIA-10) of the first control unit (RIA) and the eight terminal (RIB-8) of the second control unit (RIB), while the sixth terminal (INV-6) of the inverter (INV) is connected to both the ninth terminal (RIA-9) of the first control unit (RIA) and the seventh terminal (RIB-7) of the second control unit (RIB), whereby the third port (INV-3) of the inverter (INV) is connected to the second port (RIA-2) of the first control unit (RIA) while the fifth port (RIA-5) of the first control unit (RIA) is connected to the second port (RIB-2) of the second control unit (RIB), whereby the third terminal (RIA-3) of the first control unit (RIA) is connected to the first terminal (A-1) of a first output control element (A) while the fourth terminal (RIA-4) of the first control unit (RIA) is connected to the second terminal (A-2) of the first output control element (A) while the third terminal (RIB-3) of the second control unit (RIB) is connected to the first terminal (B-1) of a second output control element (B) while the fourth terminal (RIB-4) of the second control unit (RIB) is connected to the second terminal (B-2) of the second output control element (B), whereby the first terminal (VKPR-1) of a final control element (VKPR) of traction regulation is connected to the second terminal (NZ-2) of a power supply unit (NZ) while the second terminal (VKPR-2) of the final control element (VKPR) of traction regulation being series-connected with a switch (a) of the first output control element (A) and with a switch (b) of the second output control element (B) is connected to the first terminal (NZ-1) of the power supply unit (NZ), whereby the first terminal (NZ-1) of the power supply unit (NZ) being also series-connected with a switch (vkpr) of the final control element (VKPR) of traction regulation is connected to the first terminal (RT-1) of a traction controller (RT) optionally to the second terminal (RT-2) of the traction controller (RT) in dependence on the status of the traction controller final control element (VKPR) while the third terminal (RT-3) of the traction controller (RT) is connected to the second terminal (NZ-2) of the power supply unit (NZ), whereby the fourth port (INV-4) of the inverter (INV) is connected to both the first port (RIA-1) of the first control unit (RIA) and to the first port (SS-1) of the engineer's cab (SS) while the sixth port (RIA-6) of the first control unit (RIA) is connected to both the first port (RIB-1) of the second control unit (RIB) and the second port (SS-2) of the engineer's cab (SS).