Received 'Invention Award' at the FY2026 National Invention Awards
Mitsubishi Electric Corporation has received the 'Invention Award' at the FY2026 National Invention Awards, hosted by the Japan Institute of Invention and Innovation, for its 'Motor Equipment Diagnostic Technology for Low-Cost Plant Maintenance.' The technology accurately detects malfunctions by calculating fluctuations in current power spectrum peaks using existing sensors, contributing to improved maintenance efficiency at reduced costs.
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- 📰 Published: May 27, 2026 at 02:50
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Mitsubishi Electric Corporation has received the 'Invention Award' at the FY2026 National Invention Awards, hosted by the Japan Institute of Invention and Innovation, for its technology concerning the 'Motor Equipment Diagnostic Technology for Low-Cost Plant Maintenance.' The award ceremony will be held on Monday, June 15th, at The Okura Tokyo.
■ Overview of the Award
'Motor Equipment Diagnostic Technology for Low-Cost Plant Maintenance'
In manufacturing sites, motor equipment that powers fans, pumps, and compressors is essential for maintaining productivity. However, the decline in specialized technicians and losses from sudden equipment failure are significant challenges. Previously, vibration sensors were used, but implementation costs were a barrier. While methods using current sensors existed, shifts in current power spectrum peak positions due to operating conditions led to false diagnoses.
We have established a calculation method to theoretically determine the fluctuation range of peak positions caused by operating conditions, achieving high-precision fault diagnosis. By applying this technology to motor control centers, it can automatically detect mechanical failures, rotor bar defects, belt breakage, layer shorts, and torque anomalies from current and voltage data. As no wiring work is required and it can be implemented simply by adding software, it contributes to cost reduction. This technology is adopted in the 'Mitsubishi Motor Diagnostic Multi-Motor Controller' released in 2020.
■ Overview of the Award
'Motor Equipment Diagnostic Technology for Low-Cost Plant Maintenance'
In manufacturing sites, motor equipment that powers fans, pumps, and compressors is essential for maintaining productivity. However, the decline in specialized technicians and losses from sudden equipment failure are significant challenges. Previously, vibration sensors were used, but implementation costs were a barrier. While methods using current sensors existed, shifts in current power spectrum peak positions due to operating conditions led to false diagnoses.
We have established a calculation method to theoretically determine the fluctuation range of peak positions caused by operating conditions, achieving high-precision fault diagnosis. By applying this technology to motor control centers, it can automatically detect mechanical failures, rotor bar defects, belt breakage, layer shorts, and torque anomalies from current and voltage data. As no wiring work is required and it can be implemented simply by adding software, it contributes to cost reduction. This technology is adopted in the 'Mitsubishi Motor Diagnostic Multi-Motor Controller' released in 2020.
FAQ
三菱電機が令和8年度全国発明表彰で受賞した賞は何ですか？
「発明賞」を受賞しました。受賞対象は「安価にプラント保守を実現するモータ設備診断技術の発明」です。
この技術はどのような課題を解決しますか？
従来の振動センサによる導入コスト問題や、周波数解析における誤診断の課題を解決します。追加工事不要で既設センサから自動検知が可能です。
本技術が対象とする異常の種類は何ですか？
機械系異常、回転子バー異常、ベルト断線、レヤショート、トルク異常など、複数種類の異常を自動で正確に検知可能です。
本技術はどの製品に採用されていますか？
2020年に発売開始した「三菱モータ診断機能付マルチモータコントローラ」に採用されています。
表彰式はいつどこで行われますか？
令和8年6月15日（月）に、The Okura Tokyo（オークラ東京）にて行われます。