A solar photovoltaic power generation system consists of solar panels, solar controllers, battery energy storage units, inverters, cables and load terminals. Among them, solar panels and battery energy storage units constitute the power system; controllers and inverters form the control protection system; and DC loads and AC loads make up the system terminals.

The inverter, short for power electronic converter, is a device that can convert direct current (DC) into alternating current (AC). Its main function is to transform the DC generated by solar panels into AC to meet the needs of the power grid. In this process, the performance of the photovoltaic inverter plays a crucial role in the efficiency, reliability, and stability of the photovoltaic power generation system.

Technical Challenges of Photovoltaic Inverters:

• Efficient Conversion: Photovoltaic inverters need to efficiently convert the DC generated by solar panels into AC and inject energy into the power grid as efficiently as possible. Optimizing the design of electronic components and control algorithms is necessary to reduce energy and heat losses.

• Temperature Management: Photovoltaic inverters generate heat during prolonged operation, and high temperatures can impact the performance and lifespan of components. Therefore, effective heat dissipation systems and temperature monitoring mechanisms are crucial to ensure the stability and reliability of photovoltaic inverters.

• Reliability and Lifespan: Photovoltaic inverters must withstand various harsh conditions such as temperature fluctuations, humidity, and corrosion. Improving the reliability and extending the lifespan of photovoltaic inverters is a significant technical challenge.

• Network Stability: Photovoltaic inverters need to operate synchronously with the power grid to ensure effective energy injection and grid stability. However, changes and disturbances in the power grid may affect the operation of photovoltaic inverters, leading to voltage and frequency instability. Therefore, photovoltaic inverters need to possess the capability for fast response and precise control to adapt to the grid's requirements and maintain stable operation.

• Size and Weight: Photovoltaic inverters typically need to be installed in limited spaces, making size and weight a challenge. Reducing the size and weight of photovoltaic inverters can lower installation and transportation costs and enhance the system's flexibility and scalability.

Typical Products:

In response to the thermal management and reliability requirements for inverters, CollTech has introduced the following solutions:

Applications also include:

❶ Ferrite core bonding

❷ Thermal conductive silicone grease

❸ Coating adhesive

❹ Component fixation and reinforcement

❺ Thermal conductive filling material

❻ Sealant

❼ Potting compound

❽ Connector reinforcement

Thermal Conductive Silicone Grease: N-Sil 8628

• High thermal conductivity, low thermal impedance

• Outstanding high-temperature aging resistance

• Excellent screen printing performance

• Extremely low thermal weight loss

• Easy to rework

For more information, please contact us.