This chapter is dedicated to outline the control system design of the multi-lane electromechanical actuator. The development process is repetitive and has to be modified as new elements are included or more sophisticated models are considered at different stages of the design. This chapter presents an overview of how this is achieved, by considering lumped and three-phase servo models driving inertial and aerodynamic loads.

Chapter Contents:

• 4.1 The lumped model
• 4.1.1 Unity feedback system
• 4.1.2 Ground test
• 4.2 Initial design
• 4.2.1 Four motors driving own inertia (without gearbox)
• 4.2.2 Motors driving inertial load via gearbox
• 4.2.3 Actuator driving inertial and aerodynamic loads via gearbox
• 4.2.4 Inclusion of velocity feedback
• 4.2.5 The integral controller
• 4.3 Design modification
• 4.4 Advanced design stage
• 4.5 The loads model
• 4.5.1 Inertial load contribution
• 4.5.2 The aerodynamic loading
• 4.5.3 Mathematical model equations
• 4.5.4 Simulated load torques
• 4.6 Gearbox ratio selection

Inspec keywords: electromechanical actuators; control system synthesis

Other keywords: aerodynamic loads; multi-lane electromechanical actuator; inertial loads; lumped servo models; three-phase servo models; control system design

Subjects: Control system analysis and synthesis methods; Electromechanical actuators; Control gear and apparatus