Multifunctional converter based on dual-DSP

Abstract

The invention provides a multifunctional converter based on dual-DSP. The multifunctional converter comprises a main power circuit and a control circuit. The main power circuit comprises a three-phaseuncontrollable rectifier, a power-on flexible charging loop, a filter circuit, an H-bridge inverter circuit, a three-phase full-bridge inverter circuit and a drive circuit; the control circuit comprises a CPU minimum system, an analog acquisition and conditioning circuit, a discrete magnitude input and output circuit and a position detection and decoding circuit. As for characteristics of a three-level type synchronous motor, an exciter in a starter generator and a main electricity generator can be powered to achieve the starting function of an aero-engine, and meanwhile, the device can powerthe permanent-magnet synchronous motor to achieve the electric drive function of the actuation system on the motor; partial sharing of the main power circuit is achieved, the control circuit partially adopts the dual-DSP and CPLD configured CPU minimum system, according to different instructions, different PWM pulse signals are generated to the drive circuit, and then the inverter circuits are driven to output and power different motors.

Description

technical field [0001] The invention relates to a power converter, in particular to a dual-DSP-based multifunctional converter for aviation. Background technique [0002] Aircraft weight is an important indicator, which is closely related to aircraft flight safety, performance, manufacturing cost, operating cost, etc. Effective control and weight reduction of aircraft empty weight can not only reduce R&D and manufacturing costs, but also provide Flexible loading space, and can improve the flight stability of the aircraft. At present, the high-power electric starting systems of aero-engines at home and abroad have begun to adopt the scheme of brushless starting / power generation. Usually, a starter controller is used to drive a three-stage motor in China to start an aeroengine. Power generation integration. However, the actuation systems on the aircraft for the control of flaps, ailerons, spoilers, and fuselage doors are currently equipped with additional motor controllers,...

AI Technical Summary

Problems solved by technology

However, the actuation systems on the aircraft for the control of flaps, ailerons, spoilers, and fuselage doors are currently equipped with additional motor controllers, which causes the complexity of the control network and communication network, and makes the aircraft airborne The weight and volume of the equipment are relatively large, which reduces the reliability of aircraft operation

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