| 摘要 |
FIELD: radio engineering, communication.SUBSTANCE: invention relates to systems for controlling brushless dc electric motors for rotating a radar antenna and can be used in controlled electric drives. The technical result is achieved due to that the system for controlling a brushless dc electric motor for rotating a radar antenna, which comprises an inverter, a brushless dc electric motor, a velocity sensor, a reducing gear, transceiving devices, an antenna sheet bending sensor, a velocity correcting device, an inverter control unit and a driver unit, includes a beam-forming system and an analogue-to-digital converter and, respectively, new connections between components, which enable to balance the space scanning speed when the wind load on the antenna sheet varies. Constant space scanning speed achieved owing to electronic anti-phase beam scanning with the rotational speed of the antenna improves the reliability of tracking high-speed targets. Limiting the rotational speed of the antenna based on the allowable bending value, achieved through corresponding connections between the inverter, brushless dc electric motor, velocity sensor, reducing gear, antenna sheet bending sensor, velocity correcting device, inverter control unit and driver unit, reduces the rated power of the electric motor and improves efficiency of the controlled electric drive.EFFECT: improved tactical-process and performance characteristics of the system for controlling the brushless dc electric motor for rotating a radar antenna.1 dwg |
