Solar power converters were used to convert the electrical energy from the solar arrays to a stable and reliable power source. The development of power semiconductor technology results in easier conversion between AC and DC. Hence, the use of solar energy is emphasized increasingly and regarded as an important resource of power energy at present. A DC-to-DC converter is an electronic circuit or electromechanical device that converts a source of direct current (DC) from one voltage level to another. At present, power shortage has become a huge problem in many countries, due to cumulative load demand which cannot be met by conventional energy power generation.
These challenging situations lead researchers to focus on non-conventional energy sources to extract electric power. In order to extract the electric power, DC–DC converters are adopted at the primary stage to increase the efficiency of power conversion. This converter is suitable for use when the array voltage is high and the battery voltage is low. DC-DC converters of different types are used in the solar energy system to investigate the performance of the converters. In DC-DC converter, the efficiency is considered as major characteristic, more commonly for battery based systems. The feature of DC-DC converter includes a wide range of voltage conversion and protection against overvoltage.
Rising focus on new approaches for power conservation, need for power saving architecture and need for higher efficiency are some of the primary factors driving the growth of global DC to DC converters in solar energy market. The immense surge in the DC-DC Converter market demand is majorly attributed to the growing focus on new opportunity for power conservation along with the development of innovative power-saving architectures. Most of the DC-DC converters help to reduce energy consumption, extends the operating time of battery powered systems and thus minimizes the costs of all kind of systems in operation. Inability of DC-DC converter to switch-off at the time of no-load situation is one of the factors hampering the global market. Selection of ideal DC-DC converter is also an important factor since it has an influence on overall performance of the solar system. Efforts are being taken by many companies to upgrade their research and development activities to introduce innovations in this field.
The global market is segmented on the basis of circuit type and region. On the basis of circuit type, the DC to DC converter in solar energy market is segmented into buck, boost and buck-boost. The boost converter is used to step up the voltage when the input voltage is lower than the output voltage and the buck converter is used to step down the voltage. A DC-DC boost converter produces an output voltage which is always greater in magnitude than the input voltage. These two are operated based on the requirement. The buck–boost DC–DC converter is capable of achieving optimal operation regardless of the load value with negotiable performance efficiency. A high step-up dc-dc converters are widely employed in many renewable energy system applications. Geographically, the DC to DC converters in solar energy global market can be segmented into North America, Europe, Asia-Pacific, Latin America and Middle East & Africa
Some of the key players operating in the global DC to DC converters in solar energy with most significant development are Texas Instruments, General Electric, Eaton, Cosel Co.,Ltd, Ericsson, FDK Corporation, STMicroelectronics, Artesyn Embedded Technologies, TDK-Lambda Corporation and Bel Fuse, Inc. among others.
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