A greener, cleaner future with Solutions from IOXUS.
The looming global energy crisis is calling for renewable and lasting energy sources, which will eventually replace fossil fuels. IOXUS ultracapacitors are an important part of the solution to store and recycle energy. Our systems have the unique ability to temporarily store a large amount of energy and power provided by the cyclical nature of solar, wind, and wave type systems. They also provide peak power delivery when combined with a low-cost alkaline battery, extending battery life by a factor of four. Our ultracapacitors are proven to duplicate the characteristics of, and even out-perform, a lithium-ion battery, without contributing to the growing problem of hazardous waste disposal associated with the batteries used in portable and hand-held devices.
Ultracapacitors have been established as the energy storage medium of choice in wind power applications for years. In 2006, Enercon first commercially integrated them with these systems for the purpose of pitch control and emergency power for these systems. Ultracapacitors proved to be superior to the incumbent battery systems, performing far beyond the batteries’ limitations. They are particularly beneficial in that they maintain a high level of performance in cold temperatures, require little to no maintenance, and have a very long cycle and calendar life. The capacitors are typically placed at schematic points in the pitch control system and the switched mode power supply serves as the charging circuit for the energy storage component, which subsequently powers the motor controllers. Ultracapacitors increase the limited choices of energy storage of a typical pitch control system and maximize efficiency.
At least two functioning systems are required to bring a wind turbine to rest, and a pitch control is a necessary safety feature for situations in which wind speeds are too high or grid connection to the wind turbine is lost. Ultracapacitors help create a more reliable system for these emergency type situations. This is because the power supply is located as part of the rotating assembly or stationary inside the hub, which limits your choice of energy storage. Ultracapacitors are lightweight yet solid, and have faster response times than heavier batteries which require a more significant structure to support their rotation and stave off negative effects of the cold. The requirements of ultracapacitors are much simpler. They only require some protection from moisture, inexpensive balancing circuitry and a designed charge or float voltage to maximize their life.
Ultracapacitors can be contained within another small building near the wind farm, providing the energy storage component for the voltage smoothing interface. Much like in the pitch control application, ultracapacitors provide superior economics in the electronic shock absorber (ESA) application. They have the ability to perform within a wide range of temperatures as opposed to batteries, have a higher efficiency for short term energy storage, and maintain a longer cycle life. They can be kept at any voltage, or even below their rated voltage, allowing them to be flexible to the needs and adapt to the environment on a wind farm. IOXUS ultracapacitors will generate far better ROI than any other energy storage medium when used as energy storage in wind applications, in all phases of a wind turbines life.
– Grid: Provide fast-response for voltage stabilization and frequency regulation.
– Microgrid: Distributed storage to Provide fast-response for voltage stabilization and frequency regulation for grid connected or islanded locations.
– Wind Turbine Pitch Control: Used in blade pitch systems and to help increase reliability and stability to the energy grid.
– Renewable Energy: Provide energy storage for firming the output of renewable installations and increasing grid stability.
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