Solar Tracker Protection Adapter for Motor Overcurrent Isolation
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Solution Overview
Problem
Existing solar panel tracking systems lack specific protection against overcurrent and overvoltage, leading to potential damage to motors and control panels, especially in older systems without modern protective circuits, resulting in costly repairs and maintenance.
Innovation Solution
An overload protection adapter is integrated into the motor wiring and motor driver control board, featuring inline fuse connectors or circuit breakers that disconnect the circuit when excessive current is detected, providing protection against overvoltage and overcurrent conditions, and can be easily retrofitted into existing systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If modern control systems incorporate circuit protection or circuit breakers, then protection against excessive current flow is improved, but device complexity and cost increase
Solution Approach 1:
The invention divides the protection function into separate modular components (fuse holder, circuit breaker, diode) that can be independently selected and installed. This segmentation allows the system to gain protection capabilities without requiring a complete redesign of the control system, thereby improving reliability while managing complexity through modularity.
Solution Approach 2:
The patent introduces intermediary protective components (fuse, circuit breaker, diode) that act as mediators between the motor circuit and the control board. These intermediaries absorb or block excessive current and voltage spikes, protecting the control system without requiring the control board itself to have complex built-in protection circuits.
2Reliability
If fuse harnesses are installed to protect motor and control panel, then protection capability is improved, but ease of installation and maintenance deteriorates
Solution Approach 1:
The protection system is segmented into discrete, pre-assembled components (fuse holder with fuse, circuit breaker unit, diode) that can be independently installed and replaced. This segmentation enables maintenance personnel to replace individual protective components without disturbing the entire wiring harness or control system, significantly improving ease of maintenance.
Solution Approach 2:
The invention extracts the protective function from the main control system and implements it as separate, removable components. The fuse holder, circuit breaker, and diode can be individually accessed and replaced without dismantling the control panel or motor wiring, making installation and maintenance straightforward while maintaining robust protection capability.
3Reliability
If protection circuits are built into control board, then protection reliability is improved, but adaptability to older systems deteriorates
Solution Approach 1:
The protection functionality is extracted from the control board and implemented as external, standalone components (fuse holder, circuit breaker, diode) that can be installed in the motor wiring circuit. This extraction allows the same protection scheme to be applied to both modern control boards with built-in protection and older systems without such features, significantly improving adaptability while maintaining protection reliability.
Solution Approach 2:
The invention creates a universal protection solution that can be applied across different control system generations. The external protective components (fuse, circuit breaker, diode) serve multiple functions: protecting against overcurrent, voltage spikes, and reverse polarity, and can be installed on both modern and legacy systems without requiring system-specific modifications, thereby achieving broad compatibility.
Data Source
AI summary
An overload protection adapter incorporated into the control panel of a solar tracking array, the adapter being operable to interface between a motor wiring and a motor control panel. The adapter is operable to be incorporated into new and existing solar tracking array systems and provides over voltage and current protection to the motor and control panel circuits.