Power Conversion Device Output Suppression Communication
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Solution Overview
Problem
Power management apparatuses face challenges in determining the state of output suppression of dispersed power sources due to varying settings on power conversion apparatuses, making it difficult to manage power effectively in consumer facilities.
Innovation Solution
A power conversion apparatus with a first communication unit to receive output suppression messages from an external server and a second communication unit to transmit predetermined messages with setting information to a power management apparatus, using a standardized format like ECHONET Lite, enabling the power management apparatus to understand and display the type and schedule of output suppression.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If power conversion apparatuses use varying settings for output suppression, then they can operate with flexible local configurations, but power management apparatuses cannot accurately determine the state of output suppression
Solution Approach 1:
The patent applies parameter changes by standardizing the message format parameters between power conversion apparatuses and power management apparatuses. Specifically, it defines a standardized message structure including message ID, version, and information elements that consistently represent output suppression settings across different devices and manufacturers, enabling accurate information transmission while preserving local configuration flexibility
Solution Approach 2:
The patent implements universality by creating a universal message format that can be used across all power conversion apparatuses regardless of manufacturer or model. The standardized format with defined information elements serves multiple functions: transmitting output suppression settings, maintaining local configuration flexibility, and enabling accurate state determination by power management apparatuses
2Measurement precision
If power conversion apparatuses transmit detailed setting information, then power management apparatuses can accurately determine output suppression state, but communication data volume increases
Solution Approach 1:
The patent extracts only the essential information elements needed for output suppression state determination from the complete device settings. The message format includes specifically selected information elements such as output suppression setting, suppression type, and suppression schedule, excluding unnecessary detailed configuration data while maintaining sufficient accuracy for power management purposes
Solution Approach 2:
The patent changes the parameter representation by using standardized, compact message formats with defined information elements. Instead of transmitting complete device configuration data, it transmits only the relevant parameters (message ID, version, information elements) in a standardized structure, reducing data volume while maintaining measurement precision
Data Source
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AI summary
A power conversion apparatus according to a first aspect comprises: a first communication unit configured to receive, from an external server, an output suppression message instructing output suppression of a dispersed power source; and a second communication unit configured to perform communication of a predetermined message having a predetermined format with a power management apparatus. The predetermined format includes an information element capable of storing setting information indicating a setting related to the output suppression of the dispersed power source. The second communication unit is configured to transmit, to the power management apparatus, the predetermined message including the setting information as the information element.