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Method of detecting state of power cable in inverter system

A technology for power cables and inverters, which is applied in the field of detecting the status of power cables in an inverter system, can solve problems such as motor failure, and achieve the effect of avoiding accidents and reducing the probability of detection errors.

Active Publication Date: 2015-03-18
LSIS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] However, since the method described above only senses the current level, it has the potential to fail due to the speed of the motor and the sampling period

Method used

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  • Method of detecting state of power cable in inverter system
  • Method of detecting state of power cable in inverter system
  • Method of detecting state of power cable in inverter system

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Embodiment Construction

[0037] The following merely illustrates the principles of the invention. Accordingly, those skilled in the art may invent various means which realize the principles of the present invention and which are included within the concept and scope of the present invention although not clearly shown or described in the specification. Likewise, all conditional terms and examples enumerated in the specification are intended only for the purpose of understanding the concept of the present invention in principle, and thus, it should be understood that the present invention is not limited to the specifically enumerated examples and states.

[0038] Likewise, it should be understood that all detailed descriptions reciting specific embodiments, as well as principles, views and embodiments of the present invention, are intended to include their structural and functional equivalents. Likewise, these equivalents should be understood to include both now known equivalents as well as equivalents ...

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Abstract

A method of detecting the states of power cables in an inverter system supplying power generated from an inverter to a motor by using three phase power cables is provided. The method includes: calculating the location of a current space vector for a first period when the first period arrives; using the calculated location of the current space vector for the first period to calculate the predicted location of the current space vector for a second period; calculating the actual location of the current space vector for the second period when the second period arrives; comparing the calculated predicted location with the actual location; and detecting the states of the three phase power cables according to a comparison result.

Description

[0001] Cross References to Related Applications [0002] This application claims priority under 35 U.S.C. 119 and 35 U.S.C. 365 to Korean Patent Application No. 10-2013-00104839 filed on September 2, 2013, the entire contents of which are hereby incorporated by reference. technical field [0003] The present disclosure relates to an inverter system, and more particularly, to a method of detecting the status of a power cable within an inverter system that can detect a disconnection of a high voltage cable connecting the inverter to a motor. Background technique [0004] An inverter system as a motor controller for eco-friendly vehicles is an electrical / electronic assembly (ESA) that functions to convert high-voltage direct current (DC) power into alternating current (AC) or DC power for controlling a motor. ) or electrical / electronic components. Therefore, the inverter system is an important component belonging to the electric motor of the vehicle. [0005] Also, permanent ...

Claims

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Application Information

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IPC IPC(8): G01R31/02G01R31/08H02P23/00H02P21/00H02P21/22H02P23/07H02P23/16H02P27/04H02P27/08
CPCH02M1/32G01R31/021H02P6/12G01R31/343H02M7/5387G01R31/041H02P29/0241G01R31/67G01R31/58G01R19/0092G01R19/10G01R19/16528G01R31/083G01R31/088
Inventor 姜溶镇
Owner LSIS CO LTD
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