System principle

Work Mode Explanation

1.         During Sufficient Sunlight:

•            The solar photovoltaic (PV) system primarily powers the load directly.

•            Meanwhile, excess electricity is used to charge the battery for future use.

2.         During Insufficient Sunlight:

•            The solar PV system continues to operate, but the generated electricity may not be sufficient to meet the load demand.

•            At this point, the energy storage battery discharges to supplement the power requirements.

•            The solar PV system and the battery simultaneously supply power to the load, ensuring stable operation.

3.         When the Battery Is Low:

•            When the battery charge drops to a predefined low threshold, the system will automatically or manually start the diesel generator.

•            The diesel generator supplies power to the load through a rectifier module (possibly an AC/DC converter).

•            At the same time, the output of the rectifier module is connected to the battery for charging.

Implementation Strategies

1.         System Monitoring and Control:

•            A central control system is required to monitor the status of the solar energy, battery, and load.

•            The control system should be able to automatically switch energy sources to ensure continuous power supply to the load.

2.         Battery Management:

•            Use a smart battery management system (BMS) to monitor the charging and discharging status of the battery.

•            The BMS should prevent overcharging and over-discharging of the battery to extend its lifespan.

3.         Diesel Generator Maintenance:

•            Regularly inspect and maintain the diesel generator to ensure it starts and runs properly when needed.

•            Stock up on sufficient fuel to meet expected runtime.

4.         Rectifier Module Selection:

•            Choose an efficient and reliable rectifier module to minimize energy losses during power conversion.

5.         Safety Considerations:

•            Ensure that the entire system complies with relevant electrical safety standards.

•            Implement appropriate protective measures, such as overcurrent, overvoltage, and short-circuit protection.

6.         Energy Efficiency Optimization:

•            Use high-efficiency PV modules and batteries to reduce energy losses.

•            Consider adopting energy management techniques, such as maximum power point tracking (MPPT), to improve the efficiency of photovoltaic power generation.

7.         Environmental Impact Assessment:

•            Before deploying the system, assess its impact on the environment, including noise, emissions, and ecological effects.

•            Take measures to reduce negative impacts, such as using low-noise generators and environmentally friendly fuels.

8.         Economic Analysis:

•            Consider the long-term operating costs and maintenance costs when designing the system.

•            Compare the costs and efficiency of different energy sources to select the most economical solution.