50Hz Starting Voltage Sun Power Solar Panel MPPT Controller General Type 12V or 24V 600V High Frequency

         Beijing X-Solar Energy Co., Ltd. was found in 2020, and headquartered in Beijing. It's a science and technology innovative energy enterprises with the main business of future cell R&D, flexible photovoltaic modules, building photovoltaic module production, high-end equipment manufacturing, production line delivery, and AI-CITY wisdom energy management services.

          In July 2023, the company's first demonstration factory, Jiangsu X-Solar Green-building Technology Co., Ltd., was established in Jiangyin CNBM Jetion Industrial Park. Meanwhile, Jiangsu YuanTeng FengSheng Intelligent Manufacturing Technology Co., Ltd., a wholly-owned equipment company of the company, delivered the world's first "three-in-one" automatic production line for Jiangyin base. The production line can be compatible with the production of three categories: X-Solar Light shadow series (flexible PV modules), X-Solar Light rhyme series (building PVtile modules), X-Solar Light Curtain series (building PV wall modules), and customized products. X-Solar PV series products have the advantages of integrating architectural aesthetics, complying with design specifications and creating energy value, which have been widely recognized and praised by customers in domestic and overseas.

        In 2024, the company has added two regional centers in Shanghai and Guangzhou of China, and set up the Hong Kong X-Solar Future Energy Research Institute, and overseas sales companies in Australia, Italy, Germany, Saudi Arabia and Argentina. The company has launched a global layout to provide sustainable energy products and services to many countries, and has contributed to the "carbon neutrality and carbon peak".

1. Basic Concept Category

• Question: What is a micro inverter for solar power generation?

• Answer: A micro inverter for solar power generation is an electronic device used in solar power generation systems. It is mainly used to convert the direct current (DC) electrical energy generated by photovoltaic (PV) panels into alternating current (AC) electrical energy for supply to household or commercial power grids. Compared with traditional centralized inverters, it is modular, and each PV panel is equipped with a micro inverter, enabling each PV panel to work independently.

• Question: What is the general power of micro inverters?

• Answer: The power of micro inverters is generally below 1 kilowatt.

• Question: What is the working principle of micro inverters?

• Answer: Firstly, the DC electrical energy generated by PV panels is transmitted to the micro inverter through cables. Then, the maximum power point tracker (MPPT) in the micro inverter monitors the output voltage and current of the PV panels to ensure the extraction of the maximum possible power. Next, the micro inverter converts the DC electrical energy into AC electrical energy and adjusts the output voltage and frequency to match the standard voltage and frequency of the household or commercial power grid (such as 230V/50Hz in Europe and 120V/60Hz in the US). Finally, the micro inverter ensures that the generated AC electrical energy is synchronized with the grid and automatically stops working when the grid voltage is unstable or there is a power outage to ensure safety.

2. Advantages and Characteristics Category

• Question: What are the main advantages of micro inverters?

• Answer: First, they have high efficiency. They can achieve independent maximum power point tracking (MPPT) for each PV module, improving the overall power generation efficiency. Second, they have high reliability. Since each module is independently inverted, the failure of a single inverter does not affect the normal operation of other modules. Third, they have high flexibility. They can be flexibly configured according to the installation location and orientation of PV modules to adapt to different installation environments. Fourth, they have high safety. The output voltage is relatively low, reducing the risk of electric shock, and DC side isolation can be achieved. Fifth, they are easy to monitor and manage. The built-in communication interface facilitates connection to intelligent monitoring systems for real-time monitoring of each PV module.

• Question: Why is it said that micro inverters can improve power generation efficiency?

• Answer: Because it conducts independent MPPT control for each PV module and is not affected by other modules. Even if some modules are shaded or have large performance differences, it can ensure that each module is in the best working state and maximize the conversion of solar energy into electrical energy, reducing power losses caused by module mismatch or shading issues.

• Question: Where is the good performance of micro inverters in weak light conditions reflected?

• Answer: Micro inverters have a low starting voltage, usually only about 20V, and can work normally under weak light conditions, thus maintaining good power generation performance under different light conditions.

3. Application Scenarios Category

• Question: What application scenarios are micro inverters suitable for?

• Answer: They are mainly suitable for residential rooftop PV systems, commercial building PV systems, agricultural PV systems, distributed photovoltaic power generation systems, off-grid PV systems, mobile PV systems, building-integrated photovoltaic (BIPV) systems, and photovoltaic energy storage systems.

• Question: What are the benefits of installing micro inverters on residential rooftops?

• Answer: They can make full use of rooftop space, are easy to install, and do not affect the building's aesthetics. Their high power generation efficiency and reliable performance can provide a stable power supply for households and reduce energy costs.

• Question: What advantages do micro inverters have for complex rooftops?

• Answer: For complex rooftops with different orientations (such as east, west, and north), micro inverters can independently control each module, better adapt to the light differences of modules in different orientations, and make full use of solar energy in different directions. However, string inverters may not perform well in such situations.

4. Technical Parameter Category

• Question: What is the general conversion efficiency of micro inverters?

• Answer: The conversion efficiency of different brands and models of micro inverters will vary. Generally, it is above 90%, and some high-performance products can reach 95% or even higher.

• Question: What are the output voltage and frequency of micro inverters?

• Answer: The output voltage is usually 220V or 110V (depending on the power grid standards in different regions), and the output frequency is generally 50Hz or 60Hz.

• Question: What are the requirements for the protection level of micro inverters?

• Answer: They usually need to have a certain protection level, such as IP65 or above, to ensure that they can be waterproof, dustproof, and moisture-proof in outdoor environments, ensuring the normal operation and service life of the inverters.

5. Installation and Maintenance Category

• Question: Is the installation of micro inverters complicated?

• Answer: Relatively speaking, it is not complicated. It is small in size and can be directly installed on the back of PV panels or on brackets without the need for additional installation space, reducing cable length and losses.