TII Energy, a German-based manufacturer in the heavy-load transporter sector, has expanded its product range to meet future green energy requirements. TII has developed flywheel energy storage systems that are used in mechanical energy storage for stationary and mobile use. The short-term storage devices facilitate fast storage and access times with low operating costs. They are suitable for storing braking energy—and its subsequent release—for the acceleration of vehicles or the smoothing of voltage peaks
“[This] is an important strategic step in order to meet the international demand for innovative storage systems for the economical and ecological use of energy,” said Dr. Axel Müller, managing director of the TII Group. “Our flywheel accumulator technology allows energy to be saved and used which otherwise would be lost. Also, its use for the storage and retrieval of dynamic energies for hybrid drives used in heavy load transport and driverless transport systems is groundbreaking.”
The product range is geared toward a variety of industries, including rail network operators, energy suppliers, operators of solar and wind power plants, crane and industrial installations, and service providers in heavy-load logistics. Furthermore, the energy storage solutions can be used for the optimization of uninterruptible power supply systems—such as in hospitals.
A typical TII Energy flywheel storage system consists of a centrifugal mass that is connected to an electric motor-generator combination by means of a shaft. In order to recharge the storage system, the centrifugal mass is set in motion (motor function). The stored rotational energy can then be converted again into electrical energy when required (generator function). The advantages include very short access times, possible deep discharge, a high level of efficiency as short-term storage (up to 95%), low operating costs and excellent environmental compatibility.
“The advantages compared to accumulators are obvious: no toxic substances, a longer service life and improved efficiency,” said Rainer Feldhaus, managing director of TII Energy. “Operators of electric rail network systems can benefit enormously from our energy storage solutions. Currently, huge amounts of energy and money are being wasted in these companies.”
Filed Under: Green engineering • renewable energy • sustainability, Energy management + harvesting, MOTION CONTROL