LIGHTWEIGHT, HIGH-EFFICIENCY AND HIGH-RELIABILITY MOTOR FOR HAPS

SOFTBANK AND NIDEC HAVE JOINTLY developed a lightweight, high-efficiency, and high-reliability axial flux-type motor for High Altitude Platform Stations (HAPS). This newly developed motor also meets the specifications required for Sunglider, the unmanned aircraft system (UAS) developed by HAPSMobile, a subsidiary of SoftBank. The jointly developed motor boasts lightweight, high efficiency and high performance that enable UAS for HAPS to endure long flight times solely on solar power and high thermal dissipation that keeps them performing stably in the stratosphere’s hypobaric environment. In addition, with the use of the magnetic circuit design technology, which Nidec has long nurtured in its small precision motor development, together with an optimised magnet arrangement to maximise magnetic field strength, a special design that encapsulates magnets in a rotor to improve reliability, and a unique, patentsapplied motor assembly method for better performance, the HAPS motor has achieved a torque density of 12.5Nm/kg, despite its low weight. www.nidec.com

Pump Motor For Thermal Power Station

MENZEL ELEKTROMOTOREN HAS manufactured a motor with a special flange for a condensate extraction pump in a combined heat and power plant. The original motor, which was over 30 years old, had to be matched precisely in all mechanical and electrical interfaces.

Works included the manufacture of a flange with special dimensions for vertical installation and repositioning of the main terminal box. The energy supply company, already a customer of Menzel Italy, awarded the order because Menzel could fully confirm all technical requirements.

Menzel’s MEBKGR series comprises high-voltage squirrel cage motors with a good price-performance ratio. For the current application, the manufacturer designed a 4-pole motor with size 500, www.menzel-motors.com

6000V nominal voltage, 1100kW nominal output, protection class IP55 and cooling type IC 411 (fin cooling with external fan). Menzel took the motor all the way through to commissioning, which was carried out to the customer’s satisfaction.