Model of aircraft actuator with BLAC motor

The paper deals with a development of control algorithms for electro-mechanical actuator in an aircraft. Contemporary technological developments within the all-electric aircraft concept lead to replacement of existing hydraulic-mechanical circuits by intelligent actuators based on electrical servo drives which increase overall reliability and utility value, decrease operating costs, dimensions and weight. The article is focused on design of complex model of Brushless Alternating Current (BLAC) motor and control algorithms with respect to used two types of rotor position sensor. Commonly used an incremental encoder and discrete Hall sensors for sensing rotor position are chosen. Development includes design and verification of these models and their performance is evaluated. In all tests the initial rotor position was non-zero to prove algorithms´ ability to start up the motor from an arbitrary position.