Application of dry-type transformers in renewable energy systems

With the increasing global attention to environmental protection and sustainable development, renewable energy has developed rapidly, Among them, distributed photovoltaic power generation and wind power generation have become important components. These power generation methods do not require water and can be installed in places where the land is not suitable for agriculture, so they have high application value. It is estimated that by 2040, at least 40% of electricity generation will come from renewable energy, which will greatly reduce current carbon dioxide emissions.

Advantages of dry-type transformers

Dry-type transformers have significant advantages in renewable energy systems, mainly including the following points:

1. High safety and reliability

Dry-type transformers adopt an oil-free design, which eliminates the oil leakage and fire risks that may exist in oil-immersed transformers. In addition, dry-type transformers have good weather resistance and corrosion resistance. So it can operate stably under harsh environmental conditions and ensure the safety and reliability of renewable energy systems.

2. Efficient energy conversion

Dry-type transformers can achieve efficient voltage conversion in renewable energy systems. By optimizing the design and using high-performance materials, dry-type transformers can reduce energy losses during the conversion process and improve overall power generation efficiency. This is of great significance for reducing costs and improving energy utilization.

3. Easy maintenance and environmental protection

Dry-type transformers have a simple structure and are easy to maintain. Since they do not require oil cooling, the trouble of regular replacement and treatment of transformer oil is eliminated. At the same time, dry-type transformers generate less noise and vibration during operation, and have relatively low impact on the environment, which is in line with the development concept of green environmental protection.

Specific applications

1. Application in photovoltaic power generation

In photovoltaic power generation systems, dry-type transformers are mainly used to convert the direct current generated by photovoltaic cells into alternating current for access to the power grid. Photovoltaic power generation systems usually include photovoltaic cells, inverters, and dry-type transformers. Photovoltaic cells convert solar energy into direct current, inverters convert direct current into alternating current. And dry-type transformers are responsible for boosting the alternating current and connecting it to the power grid. Dry-type transformers suitable for distributed photovoltaic power generation need to meet specific design requirements, such as asymmetric loads and voltages, the presence of direct current in the windings, and other issues.

2. Application in wind power generation

Dry-type transformers also play an important role in wind power generation. The electric energy generated by wind turbines needs to be stepped up and transformed by transformers so that it can be efficiently connected to the power grid. Due to the limitations of the power and voltage levels of wind turbines, multiple inverters need to be connected to the same number of step-up transformers. Dry-type transformers can adapt to load changes caused by changes in wind speed and ensure the stable operation of the power system.

With the continuous advancement of renewable energy technology and the expansion of the market scale, the application prospects of dry-type transformers in renewable energy systems will be broader. In the future, the design and construction of photovoltaic isolation transformers and wind power transformers will become an important part of the evolution of smart grids. At the same time, in order to meet the requirements of renewable energy systems for high efficiency, reliability, and environmental protection, dry-type transformers will continue to adopt new materials, new processes, and new technologies for improvement and optimization.