An EMC Design Method for UAV Steering Gear Control Drive System

Abstract

An electromagnetic compatibility design method for an unmanned aerial vehicle steering engine control driving system is synchronous with development and verification processes of an unmanned aerial vehicle steering engine control driving system, and comprises interference source analysis and determination, sensitive circuit analysis and determination, electromagnetic compatibility scheme design and software anti-interference design, wherein the electromagnetic compatibility scheme design is the key point of the electromagnetic compatibility design of the unmanned aerial vehicle steering enginecontrol driving system, and comprises the overall layout design of the control driving system, the grounding design, the isolation design, the PCB wiring and grounding design, the electromagnetic shielding design and the connecting cable shielding design. The unmanned aerial vehicle steering engine control driving system designed and verified through the method has the extremely low electromagnetic radiation level and the extremely high electromagnetic interference resistance, meanwhile, the stable and reliable working capacity in the complex electromagnetic environment is guaranteed, and therefore good electromagnetic compatibility is achieved.

Description

technical field [0001] The invention relates to the technical field of design of an unmanned aerial vehicle steering gear control drive system, in particular to an electromagnetic compatibility design method for the unmanned aerial vehicle steering gear control drive system. Background technique [0002] Most of the existing civilian UAVs are multi-rotor structures. The mechanical structure of multi-rotor UAVs is simple, and the control is relatively easy, but they have the disadvantages of slow speed, small carrying capacity, and short endurance time. The civil field with carrying capacity and long-term battery life is not competent; and for fixed-wing UAVs, its flight attitude control is realized through the actions of the wing ailerons, vertical tails, and elevating tails, while the wing ailerons, vertical tails, The movement of the elevating tail needs to be controlled by the steering gear, so the UAV steering gear control drive system is a key subsystem of the fixed-win...

AI Technical Summary

Problems solved by technology

[0002] Most of the existing civilian UAVs are multi-rotor structures. The mechanical structure of multi-rotor UAVs is simple, and the control is relatively easy, but they have the disadvantages of slow speed, small carrying capacity, and short endurance time. The civil field with carrying capacity and long-term battery life is not competent; and for fixed-wing UAVs, its flight attitude control is realized through the actions of the wing ailerons, vertical tails, and elevating tails, while the wing ailerons, vertical tails, The movement of the elevating tail needs to be controlled by the steering gear, so the UAV steering gear control drive system is a key subsystem of the fixed-wing UAV, but because of its high development difficulty, there is currently no fixed-wing UAV steering gear on the market. Control-driven commercial products, thus affecting the development of civilian fixed-wing UAV products

[0003] In addition, civilian fixed-wing UAVs will be equipped with electronic equipment such as optoelectronics and radars during use, so they have the characteristics of a complex electromagnetic environment. If the EMC design of the UAV steering gear control drive system is poor, it is easy to cause UAVs Electromagnetic interference is generated between the steering gear control drive system and the electronic equipment such as optoelectronics, radar, and communication equipment, which affects the normal flight control of the fixed-wing UAV. In severe cases, it may even cause the fixed-wing UAV to crash out of control. The electromagnetic compatibility design of the UAV steering gear control drive system is one of the necessary design tasks to ensure that the UAV steering gear control drive system works reliably and stably in complex electromagnetic environments; at the same time, the UAV steering gear control drive system As an independently sold subsystem, the system itself should have a low level of electromagnetic radiation in order to achieve good electromagnetic compatibility with other systems of the customer; systematic revelation

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