Power Module Signal Correlation for Multi-System Charge Control
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Solution Overview
Problem
In power systems with adjacent power conditioners, existing technologies require user designation to select between multiple signals, increasing operational complexity and costs due to the need for additional communication facilities.
Innovation Solution
A charging/discharging control method and device that utilize a receiver and controller to calculate the relationship between received signals and input voltage, selecting the signal with the highest correlation for controlling power modules without user intervention, thereby reducing complexity and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless communication is used for signal transmission between central management devices and power conditioners, then communication flexibility and ease of installation are improved, but signal interference and control ambiguity increase when multiple power systems are adjacent
Solution Approach 1:
The patent implements a feedback mechanism where the power conditioner monitors received signals from multiple central management devices, calculates relationship degrees between signals and actual operating parameters, and uses this feedback to automatically select the most appropriate signal source, thereby resolving signal interference issues while maintaining wireless communication flexibility
Solution Approach 2:
The system enables self-service by allowing the power conditioner to autonomously determine which central management device's signal to follow based on calculated relationship degrees, eliminating the need for manual user designation and automatically handling signal selection in multi-system environments
2Measurement precision
If manual signal designation is required from user when multiple signals are received, then control precision is improved, but operational complexity and setup time increase
Solution Approach 1:
The power conditioner automatically performs signal selection by calculating relationship degrees between received signals and its actual operating state, eliminating the need for manual user intervention while maintaining precise signal selection based on operational parameters
Solution Approach 2:
The system changes the selection criterion from manual user designation to automatic calculation based on relationship degree parameters between signals and operating parameters, enabling precise automated signal selection without increasing operational complexity
3Adaptability or versatility
If additional communication facilities are deployed to manage multiple signals, then signal management capability is improved, but system cost and infrastructure complexity increase
Solution Approach 1:
The existing wireless receiver in the power conditioner is made multi-functional by enabling it to receive and process signals from multiple central management devices simultaneously, eliminating the need for additional dedicated communication facilities while improving signal management capability
Solution Approach 2:
The power conditioner autonomously manages multiple incoming signals by calculating relationship degrees and automatically selecting the appropriate signal source, providing enhanced signal management capability without requiring additional communication infrastructure
Data Source
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AI summary
A charging/discharging control method and a charging/discharging control device, when controlling a power module connected to any of a plurality of power systems, receive a signal broadcast for each of the power systems via a receiver included in the power module, calculate a degree of relationship between the acquired signal and an input voltage inputted to the power module for each of the power systems, and control the power module based on the signal relating to the power system having the degree of relationship greater than or equal to a prescribed threshold.