Dual-output motor control unit for an electromechanically actuated nose landing gear

Employing ´more electric´ architectures for the modern aircraft may lead to more beneficial environmental impacts and improved reliability as well as reduced maintenance cost for airline operators. Therefore, the aircraft industry, governmental organizations and research institutes have focused there attention towards ¿power-by-wire¿ or ¿more electric¿ architectures in which electrical power moves aircraft flight surfaces. In this paper power electronic technology used in the ¿power-by-wire¿ type nose landing gear system is investigated for future more electric aircraft. Furthermore, use of a dual-output power converter concept for an electromechanically actuated nose landing gear system is analyzed. The design, construction and testing of the above mentioned power converter with higher technology readiness level is described in detailed. Finally, the test results from the nose landing gear ground demonstration unit are presented.