Controller Display for Electricity Storage System Connection State
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Users face difficulty in determining the proper connection state between a solar cell module and an electricity storage system, leading to poor user convenience due to complex installation locations and wiring configurations.
Innovation Solution
A controller with a control circuit that changes the display content based on the connection state between the solar cell module and the bidirectional inverter via a DC bus, including a first DC/DC converter connected to a storage battery and a bidirectional inverter, and a second DC/DC converter between the solar cell module and the bidirectional inverter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the solar cell module and DC/DC converter are properly connected, then the storage battery can be charged with electric power generated by the solar cell module, but the user cannot easily check the connection state due to complex installation locations and wiring
Solution Approach 1:
The patent introduces a controller as an intermediary device that mediates between the complex electrical connection (solar cell module to DC/DC converter) and the user. The controller monitors the connection state internally and presents this information in a simplified, user-friendly manner through its interface, allowing users to check connection status without needing to physically inspect complex wiring and installation locations.
2Reliability
If the wiring and installation location are complex, then the system can function properly, but it becomes difficult for users to check the connection state
Solution Approach 1:
The controller implements a feedback mechanism that continuously monitors the connection state between the solar cell module and DC/DC converter, and provides real-time status information to the user through its interface. This feedback system allows users to detect and measure the connection state indirectly through the controller's display or indicators, eliminating the need to physically inspect complex wiring and installation locations.
Data Source
AI summary
A controller in an electricity storage system that includes a first DC/DC converter connected to a storage battery, and a bidirectional inverter connected to the first DC/DC converter. The controller includes a control circuit which changes a content to be displayed by a display, according to whether the electricity storage system is in a predetermined state in which a first PV is connected to the bidirectional inverter via a DC bus.