| 摘要 |
FIELD: transport.SUBSTANCE: invention relates to ship building. Proposed power generator comprises main engine connected with main generator and local control system. Main generator is connected with propulsion motor via electric circuit including first circuit breaker, main buses, consuming hardware buses, frequency inverter and extra motor/ Extra motor is connected with additional generator connected via second automatic circuit breaker to busses of consuming hardware. Main and extra generators are three-phase electromagnetic excitation generators equipped with first and second phase current output transducers. Local control system can be connected to top level control system, first and second current phase and voltage transducer mounted at consuming equipment buses. Controlled frequency inverter comprises rectifier and inverter connected in series equipped with intrinsic controller. Current sensors connected with controller data input are built in rectifier power output power circuit and inverter input power circuit. Choke is connected to controlled rectifier power input. Choke other output is connected to phase voltage sensor and to third automatic circuit breaker connected to main buses. Phase voltage sensor is connected with rectifier controller. DC link capacitor accumulator and dc voltage sensor connected to both controllers are built in between rectifier output power circuit and inverter input power circuit current sensor. Controllers are connected to selector of operating conditions connected with local control system.EFFECT: higher efficiency of bus power supply.1 dwg |
