High-speed direct-drive drivetrain for semi-physical simulation of engines

Abstract

The invention provides a high-speed direct-driven transmission system for engine semi-physical simulation, which comprises at least one high-speed driving motor and a motor controller, wherein each high-speed driving motor is coupled to a corresponding target load through a coupling; and the motor controller is coupled to each of the at least one high-speed driving motor, and controls each of the high-speed driving motors to drive the corresponding target loads with the corresponding target rotating speed.

Description

technical field [0001] The invention relates to the fields of semi-physical simulation and motor control, in particular to a high-speed direct-drive transmission system used for semi-physical simulation of engines. Background technique [0002] For the semi-physical simulation tester of the aero-engine, in addition to the mathematical model of the engine body, other components such as sensors, fuel systems, electronic controllers, actuators, etc., all use real airborne components. However, for the drive of PMA (permanent magnet alternator) motor, N1 (low-voltage rotor physical speed) speed sound wheel, N2 (high-voltage rotor physical speed) speed sound wheel, and fuel pump, since there is no real engine body, it is necessary to design corresponding The drive system provides high-speed drive speed and torque. In addition, since the PMA motor, N2 speed tone wheel, and fuel pump are driven by the same shaft in the actual engine, they rotate synchronously according to a certain...

AI Technical Summary

Problems solved by technology

Different engines need to simulate different transmission signals in terms of quantity, speed and torque requirements. The commonly used drive system generally adopts the structure of transmission gearbox + low-speed motor, and outputs to each load after changing the transmission ratio of the gearbox. This method exists Disadvantages such as the complex design of the transmission gearbox, which increases the design cost of the tester

There are many coupling loads with the transmission gearbox. Once the gearbox fails, the entire tester is basically unusable, which is not conducive to the maintenance and use of the tester.

For different stages of an engine model, once the transmission ratio of the mechanical system changes, the gearbox needs to be redesigned, and the versatility is poor

In addition, a high-power motor is required to drive the gearbox, and the noise is relatively large, which has an adverse effect on the environment of the laboratory

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