Research on Control Method of Four Rotor UAV Based on Classical PID Control System

Abstract

In recent years, four rotor unmanned aerial vehicle (UAV) has been widely used in the field of power inspection. The four rotor UAV has the characteristics of small size, low manufacturing cost, fast moving speed and so on. It is very convenient to use in various complex and inaccessible places. With the increasing strength of related control technology, the stability, functionality and safety performance of four rotor UAV have been significantly improved. In order to further verify the adaptability of the four rotor UAV to the field of power inspection. In this paper, the flight state control method of multi rotor UAV is studied. The principle of proportion integration differentiation (PID) control is analyzed. The position controller and attitude controller in the PID control system are designed. On this basis, a four rotor UAV Control System based on classical PID control method is constructed. Finally, the designed control system is simulated. The results show that the position control parameters and attitude angle control parameters in the PID control system are the key to ensure the stable operation of the system. The classical PID control system can meet the needs of UAV for simple flight tasks. However, for the application scenarios that require UAV to perform complex actions, the control method of four rotor UAV needs to be further improved. The research results play a guiding role in expanding the application field of UAV.