Visual Line Switching System for PV Power Safety
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Solution Overview
Problem
Conventional line switching systems for power supply systems lack interconnectivity between power conditioner apparatuses and power generation systems, leading to inefficient and unsafe manual switching, with users often unaware of the entire power supply system layout, increasing the risk of faulty wiring and electrical hazards.
Innovation Solution
A line switching system that includes a display device to visualize the power supply system and a control unit to automatically switch between power generation systems and power conditioner apparatuses, eliminating the need for manual intervention and ensuring safe and efficient operation by controlling switches based on user inputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual switching between power generation systems and power conditioner apparatus is used, then device complexity is reduced, but reliability deteriorates due to increased risk of faulty wiring and electrical hazards
Solution Approach 1:
The patent introduces a control unit as an intermediary between the user and the switching system. The control unit receives switching requests, determines the appropriate switching plan, and automatically controls the switches, thereby eliminating the need for users to manually handle complex wiring while ensuring safe and reliable operation.
Solution Approach 2:
The switching system performs self-service by automatically executing switching operations based on power generation amount predictions and user preferences. The system monitors its own state, determines optimal switching configurations, and carries out the switching without external manual intervention, improving both safety and reliability.
2Reliability
If automatic control switching is implemented, then reliability improves by eliminating manual intervention, but device complexity increases due to control units and display devices
Solution Approach 1:
The control unit performs multiple functions: it predicts power generation amounts, determines switching plans, controls switches, and interacts with the display device. By consolidating these diverse functions into a single multi-functional control unit, the system achieves high reliability without proportionally increasing overall complexity.
Solution Approach 2:
The patent merges the control logic, switching decision-making, and execution control into a single integrated control unit. This consolidation simplifies the overall system architecture while maintaining the reliability benefits of automatic control, as the merged unit handles all control tasks that would otherwise require separate components.
3Ease of operation
If users manually manage power supply systems without visual interface, then ease of operation is maintained, but loss of information increases as users are unaware of system layout
Solution Approach 1:
The display device provides real-time feedback to users by visually representing the power supply system layout, current switching states, and power generation amounts. This feedback loop keeps users informed about system status without requiring them to physically inspect or understand the complex wiring, maintaining ease of operation while eliminating information loss.
Solution Approach 2:
The display device creates a visual copy or representation of the physical power supply system. Instead of requiring users to directly observe or understand the physical layout, the system provides an accurate visual model that displays all relevant information about system configuration and status, eliminating information loss while keeping operation simple.
Data Source
AI summary
A line switching system is a line switching system which switches line of a power supply system including: a plurality of PV panels which generate power using renewable energy; at least one PCS which conditions supplied power to output the conditioned power to a power system; and a first switch which connects any one of the PV panels and the PCS, wherein the line switching system includes a display device which displays an image corresponding to the power supply system and receives an operation on the image from the user, and a control unit which is configured to switch between conduction and non-conduction between a plurality of PV panels and the PCS by controlling the first switch according to the operation received by the display device.