A Saber-based inverter simulation method and device

By using a Saber-based inverter simulation method, the sensitivity of inverter power devices and peripheral circuit parameters was analyzed, solving the problem of low inverter efficiency and achieving efficient inverter design and reduced energy loss.

CN115600379BActive Publication Date: 2026-06-30CHINA FAW CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA FAW CO LTD
Filing Date
2022-09-22
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing technologies make it difficult to effectively adjust the power device characteristics and peripheral circuit parameters of inverters to improve inverter efficiency, reduce energy loss, and affect the driving range and lifespan of electric vehicles.

Method used

An inverter simulation method based on Saber is adopted. By generating an initial simulation test circuit, time-domain simulation is performed to obtain the total loss, switching loss, and conduction loss of the power device model. By replacing the simulation test circuit, the sensitivity of each characteristic curve to loss is analyzed, and design adjustments are made.

Benefits of technology

It enables rapid and accurate improvement of inverter efficiency, reduction of losses, and meeting of system efficiency requirements, thereby improving the efficiency of simulation design.

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Abstract

This application provides a Saber-based inverter simulation method, which includes: generating an initial simulation test circuit; performing time-domain simulation based on the initial simulation test circuit to obtain the total loss, switching loss, and conduction loss of the power device model; transforming the initial simulation test circuit to obtain a replacement simulation test circuit, and performing sensitivity testing on the obtained replacement simulation test circuit based on the total loss, switching loss, and conduction loss of the power device model to obtain the sensitivity of each initial curve; and adjusting the power device design based on the obtained total loss, switching loss, conduction loss of the power device model, and the sensitivity of each original curve. This method can guide the design of power devices and other parameters in the circuit, effectively improving R&D efficiency and quickly achieving the goals of improving inverter efficiency, reducing losses, and meeting system efficiency requirements.
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