| 摘要 |
A generator braking compensator comprises one or more rotors 2 mounted on the shaft of a generator 1 that is driven by a prime mover 8. The compensator rotor has flux sources 5 that are magnetically repulsed by flux pulses produced in stationary compensating coils 3 that are in series between the output of the generator 1 and its load, producing pulsed force vectors to compensate for pulsed braking experienced by the generator rotor. Two compensator coils 3 can be in series, producing two pulses per generated half-wave and be positioned such that the force vectors produced are synchronised with and oppose generator braking force vectors. The prime mover can be a wind, steam or water turbine but in a test rig it can be a motor 8. The compensator can be retrofitted to an existing generator and the invention aims to reduce the torque required to turn a generator shaft when supplying current to a load due to the Lenz effect. |
