Method, apparatus and computer program product for verifying control logic of inverter

By setting the direct axis voltage, alternating axis voltage and simulated motor angle, performing villain transform and space vector modulation, and using the three-phase inductance resistance model to detect the three-phase current, the control logic verification problem when the inverter drives the motor is solved, and fast and accurate inverter testing is achieved to avoid motor damage.

CN120276403APending Publication Date: 2025-07-08BOSCH AUTOMOTIVE SYSTEMS (WUXI) CO LTD
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Patent Information

Application Number
CN202410020917.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-01-05
Publication Date
2025-07-08

AI Technical Summary

Technical Problem

When the inverter drives the motor, the switching device cannot be controlled correctly, resulting in the motor being unable to be driven correctly, and may even be damaged, and it is difficult to distinguish between motor problems or inverter problems.

Method used

By setting the direct-axis voltage and the intersection-axis voltage, simulating the motor angle, performing villain transform and space vector pulse width modulation, generating three-phase pulses, and using the three-phase inductance resistance model to simulate the motor, detecting the sinusoidality of the three-phase current to verify the inverter's control logic.

Benefits of technology

The inverter and motor are decoupled, and the control logic of the inverter is quickly and accurately verified, which avoids motor damage, and does not rely on the real motor angle, so that the inverter performance can be tested under different conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present disclosure presents a method, an apparatus, and a computer program product for verifying control logic of an inverter. A direct-axis voltage and a quadrature-axis voltage corresponding to a rotating coordinate system of an electric machine can be set, and the inverter is suitable for driving the electric machine. A simulated electrical angle for simulating a motor angle of the motor may be set. An anti-Park transform may be performed on the direct-axis voltage and the quadrature-axis voltage according to the simulated electrical angle to generate an alpha-axis voltage and a beta-axis voltage corresponding to a stationary coordinate system of the motor. The alpha-axis voltage and the beta-axis voltage may be space vector pulse width modulated to generate a three-phase pulse. The three-phase pulse may be applied to the inverter to produce a three-phase current. The rationality of the control logic of the inverter can be verified according to the three-phase current.
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