Power monitoring device, power monitoring system, and power monitoring method
WO2026062817A1PCT designated stage Publication Date: 2026-03-26MITSUBISHI ELECTRIC CORP
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2026-03-26
AI Technical Summary
Technical Problem
Existing power consumption optimization systems in railway vehicles do not account for the factors causing fluctuations in power consumption, making it difficult to effectively reduce power consumption.
Method used
A power monitoring device and system that calculates power consumption per unit time and outputs a fluctuation index, which identifies the factors causing power fluctuations, by acquiring voltage and current values from a power converter and integrating them with occupancy rates and operational commands.
Benefits of technology
Enables precise identification of power consumption factors, facilitating targeted measures to reduce power consumption and optimize energy usage in railway vehicles.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure JP2024033429_26032026_PF_FP_ABST
Abstract
A power monitoring device (41) comprises a data acquisition unit (51), a power amount determination unit (53), and an output unit (54). The data acquisition unit (51) acquires the value of a voltage applied to a power source (91), the value of a current flowing to a primary terminal (1a), and a variation index that is a physical quantity indicating a factor of variation in power consumed by a power conversion device (1). The power amount determination unit (53) derives a power consumption amount, which is the amount of power consumed by a railway vehicle per unit time, from the voltage value and the current value when current flows from the power source (91) toward the power conversion device (1). The output unit (54) outputs the power consumption amount and the variation index in a target period that includes a plurality of unit times.
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Citation Information
Patent Citations
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