New electric air compressor technology doubles hydrogen fuel cell power output

Recently, Aeristech of the United Kingdom announced that it is developing a new type of electric air compressor technology, which can double the output of hydrogen fuel cells. This not only helps automakers improve the overall performance of the vehicle, but also allows the fuel cell to be more compact in size, further improving the fuel cell packaging process and overall weight.

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Aeristech's electric air compressors use an aluminum turbocharged compressor, and the machining tolerances of the compressor meet the tolerance requirements of the mass production of the automotive industry. In addition, the compressor is directly connected to a high-speed motor without the traditional gearbox mechanism. From the design structure adopted by the new electric air compressor, it can be seen that it is quite different from the traditional Roots pump and screw pump supercharger in structural design.

In addition, Aeristech has developed a 10 kW fuel cell air compressor under the financial support of the “Innovative UK” organization, formerly known as the UK Technology Strategy Board. In this project, Imperial College London is responsible for the design of the compressor, in which the compressor can withstand high pressure for a long time under high flow conditions. In addition, the British Intelligent Energy company also participated in the design of the above projects, which is mainly responsible for the integration of the motor starter with the fuel cell and the fuel cell controller during system performance testing.

The output voltage of a fuel cell is generally fluctuating, so conventional motor compressors generally need to be equipped with an intermediate voltage regulator to provide a stable pressure value to the motor compressor, which increases the power consumption of the system. Aeristech's motor control technology can output a constant constant torque, so the pressure output of its motor compressor is not affected by the amount of intake air and input voltage fluctuations, which means it can be directly connected to the fuel cell. powered by.

Aeristech's products also include a 20 kW high performance compressor. The compressor has a control voltage of 400 volts and is primarily used for system testing and demonstration work.

Aeristech has also developed an innovative permanent magnet switch structure. The application of the permanent magnet switch structure can greatly increase the power density of the motor. Aeristech said that the power density of its permanent magnet switch-structured motors is currently the largest on the market. Aeristech's motor control strategy is to separate communication signals from power control signals. This method not only reduces the cost of many critical switching components, but also ensures accurate high-speed control.

The new electric air compressor technology forms the most basic product line of Aeristech, including electric drive superchargers, pure electric turbochargers, fuel cell air boosters and turbine generators. Whether it is a simple bearing or a complex compressor impeller, Aeristech is solely responsible for the design, testing and development of all its products.