The invention discloses a ship direct-current networking electric propulsion system based on a brushless doubly-fed generator. A brushless doubly-fed generator is connected to a common direct-current bus through a rectifier, a diesel generator is connected to a rotating shaft of the brushless doubly-fed generator, and an automatic speed regulation device is connected to the diesel generator; the input end of the rectifier is connected with a power winding PW of the brushless doubly-fed generator, a control winding CW of the brushless doubly-fed generator is connected with one end of a frequency converter, and the other end of the frequency converter is in feedback connection with the power winding PW of the brushless doubly-fed generator. The problems that in a ship direct-current networking electric propulsion system based on a synchronous generator, a diesel engine needs to be adjusted to the synchronous speed through an automatic speed adjusting device for power generation, and due to an electric brush sliding ring, the operation efficiency and safety of the whole electric propulsion system are reduced are solved. The problem that cost and control complexity are increased due to the fact that a controllable rectification module needs to be used in a ship direct-current networking electric propulsion system based on an asynchronous generator is also solved.
本发明公开了一种基于无刷双馈发电机的船舶直流组网电力推进系统,公共直流母线上还通过整流器连接无刷双馈发电机,无刷双馈发电机的转轴上连接有柴油发电机,柴油发电机上连接有自动调速装置,整流器的输入端与无刷双馈发电机的功率绕组PW连接,无刷双馈发电机的控制绕组CW连接有变频器,变频器另一端回馈连接无刷双馈发电机的功率绕组PW,本发明解决了基于同步发电机的船舶直流组网电力推进系统中柴油机需自动调速装置调速至同步速进行发电,以及存在电刷滑环导致整个电力推进系统的运行效率以及安全性降低的问题;解决了基于异步发电机的船舶直流组网电力推进系统中需要用到可控整流模块导致成本和控制复杂性增加的问题。
Ship direct-current networking electric propulsion system
一种船舶直流组网电力推进系统
2021-04-13
Patent
Electronic Resource
Chinese
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern |
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