Guangzhou Anern Energy Technology Co., Ltd.

Application of High-Power Off-Grid 3-Phase Solar Inverter in Photovoltaic Power Generation Systems

Nov 28, 2024
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    The photovoltaic power generation system, as a clean, renewable energy device system, is receiving increasing attention and application. In the Anern solar power system, the inverter, as one of the core devices, is responsible for converting the DC power generated by the photovoltaic modules into AC power to meet various power demands. Below, Anern will introduce the features of the off-grid 3-phase solar inverter in the system of on-grid off-grid inverter.


    Features of High-Power Off-Grid 3-Phase Solar Inverters


    High-power off-grid 3-phase solar inverters convert direct current into three-phase alternating current power. Their main features include:


    High Efficiency


    Supports three-phase unbalanced load and three times peak power, able to easily drive inductive impact loads, with pure sine wave output at industrial frequency, ensuring efficient and stable energy conversion.


    Good Stability


    Can be used as a UPS power supply. When the utility power is normal, it provides the utility power to the load after stabilization and simultaneously charges the battery. When the utility power is interrupted, it immediately switches the battery's DC power to AC power through the inverter, providing continuous and reliable power support.


    High Safety


    Equipped with comprehensive protection functions, such as input/output over-voltage, under-voltage, over-temperature, overload, and short-circuit protection, ensuring the safe operation of the equipment.


    In off-grid photovoltaic power generation systems, high-power off-grid 3-phase solar inverters, as one of the core devices, are responsible for converting the DC power generated by the photovoltaic modules into AC power for the load. At the same time, the excess energy is stored in the storage device through the charge controller for use when sunlight is insufficient. The stable performance of off-grid 3-phase solar inverters ensures a continuous power supply, meeting all-weather power needs.


    Selection and Configuration of High-Power Off-Grid 3-Phase Solar Inverters


    In high-power photovoltaic systems, when selecting and configuring off-grid 3-phase solar inverters among large off-grid solar power systems, the following factors need to be considered:


    Load Peak Power


    The load peak power determines the power of the off-grid inverter. When selecting, choose an inverter with appropriate power according to actual load requirements.


    Daily Load Power Consumption


    The daily load power consumption determines the capacity of the photovoltaic modules, thereby determining the power of the MPPT controller. During configuration, ensure that the MPPT controller matches the power of the off-grid inverter.


    Heat Dissipation Performance


    High-power inverters generate considerable heat during operation, so heat dissipation performance is an important factor to consider when selecting an inverter. Choose an inverter with good heat dissipation performance to ensure stable operation of the equipment.


    For projects with lower load power, a photovoltaic off-grid integrated machine generally meets user needs. However, if the power demand exceeds 80KW, the mainstream market tends to use split-type off-grid inverters.


    For high-power off-grid needs, if the MPPT controller and the off-grid inverter are integrated, the entire cabinet will be very large, making installation and transportation inconvenient. Additionally, heat dissipation becomes a challenge. Therefore, considering various factors, in the application of high-power off-grid 3-phase solar inverters, the MPPT controllers and off-grid inverters are generally used as separate units that work independently and cooperatively.


    Andy Cao
    Andy Cao

    I’m Andy Cao, an energy engineer with over 16 years of hands-on experience in solar inverters, lithium battery energy storage, photovoltaic systems, and solar street lighting. I focus on real-world system performance and write to share practical, experience-based insights for professionals working in the solar energy industry.

    FAQ

    Why is Anern included in lists of solar energy manufacturers?

    Anern is included in solar energy manufacturer lists due to its involvement in supplying multiple core solar products, including solar inverters, lithium battery energy storage systems, solar panels, and integrated solar system solutions.

    What solar applications use Anern energy storage systems?

    Anern's energy storage systems are used in the following solar applications:


    Residential Backup Power: 

    For home use during power outages, providing up to 6 hours of continuous power for average household consumption. These systems reduce grid reliance and electricity bills while storing excess solar energy.


    Commercial and Industrial Energy Management: 

    Installed in factories and businesses to store excess solar energy, reduce peak-hour grid consumption, and lower electricity costs. Systems are deployed in secure, ventilated locations for stability.


    Off-Grid Infrastructure: 

    Supports meteorological/hydrological observation equipment and other critical infrastructure in remote areas without grid coverage. Battery banks store solar energy converted via inverters for reliable operation.


    Agricultural Operations: 

    Powers farms by converting stored solar energy into AC electricity, maintaining agricultural activities during outages or grid instability.


    Large-Scale Solar Projects: 

    Used in independent photovoltaic power stations ranging from 10KW to 50MW capacity, enabled by parallel-connected hybrid inverters for solar energy conversion and storage.

    Can I order samples?

    Before placing bulk order, samples order for testing is acceptable. This allows customers to more intuitively understand the appearance and quality of Anern's products.

    Are Anern products certified for international markets?

    Anern solar energy products comply with international certification standards such as ISO 9001, CE, TUV, FCC, and ROHS, supporting deployment in different regional markets.

    Will the solar lights work all night?

    If you live in a sunny place like South Africa or South America, wholesale solar street lights from Anern can easily last 10 hours at night all year round. In some Northern European countries, solar lights last for a shorter time at night in winter. In these areas, it is expected to last an average of six hours during winter.

    References
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