AC Solar Module Communication for Off-Grid Backup
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Solution Overview
Problem
Traditional solar power systems are primarily fixed and lack mobility, requiring them to operate within a local electricity grid and unable to function independently as a mobile power source.
Innovation Solution
A solar power system comprising alternating-current (AC) modules with a communication apparatus that allows for both Off-grid and On-grid operations, enabling the AC modules to provide backup power to electronic loads and function as a mobile power generator by connecting to the local grid or being carried on vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional fixed solar power systems are used, then they can generate electricity reliably within the local electricity grid, but they lack mobility and cannot operate independently outside the grid
Solution Approach 1:
The solar power system is designed to perform multiple functions by supporting both On-grid and Off-grid operating modes through a universal AC module architecture. The system can automatically adapt between grid-connected operation and standalone power generation, eliminating the need for separate fixed and mobile systems.
Solution Approach 2:
The system incorporates dynamic switching capability between different operating modes (On-grid and Off-grid) through the communication apparatus that receives control signals and adjusts system operation accordingly. This dynamic adaptability allows the system to transition from fixed grid-dependent operation to mobile independent operation.
2Ease of operation
If solar power systems are designed for mobility, then they can be carried on vehicles or by users, but they face challenges in providing stable power output and grid integration
Solution Approach 1:
The communication apparatus establishes a feedback control loop between the control device and the AC module, enabling real-time monitoring and adjustment of power output. The control device sends control signals based on system status and grid conditions, ensuring stable power generation even in mobile configurations.
Solution Approach 2:
The system performs preliminary synchronization and communication setup before power generation begins. The communication apparatus pre-establishes control protocols and system parameters, ensuring that when the system transitions to power generation mode, the output is immediately stable and properly integrated with the grid or load.
3Adaptability or versatility
If AC modules operate in Off-grid mode, then they can provide backup power to electronic loads, but they require independent control and communication capabilities
Solution Approach 1:
The control circuit and communication apparatus are merged into an integrated control system within the AC module. This combination consolidates multiple functions (power management, communication, control signaling) into a unified device, reducing overall system complexity while enabling Off-grid backup power capability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system provides reliable backup power to electronic devices in Off-grid mode and functions as a mobile power source, replacing traditional power sources like batteries or diesel generators, while maintaining stability through parallel connections and anti-islanding protection.
Implementation Method 1
The at least one alternating-current module includes a solar panel and an alternating-current inverter electrically connected with the solar panel
Data Source
AI summary
A solar power system includes at least one alternating-current module and a communication apparatus. Each alternating-current module includes a solar panel and an alternating-current inverter. The communication apparatus connects to the alternating-current module and controls stand-alone power-generating operations on the alternating-current module. The communication includes a module connector and a control circuit. The module connector is configured for connecting with the alternating-current module. The alternating-current module can be parallel-connected on a household power grid selectively. The communication apparatus can transmit a stand-alone power-generating command to the alternating-current module. The alternating-current inverter may cancel an anti-islanding protection procedure thereon according to the stand-alone power-generating command.