PID Control of Inverted Pendulum Using Lab VIEW

Abstract: Today control theory over intelligent system is well developed to provide a sophisticated design technique for practical control systems. Moreover, computers are fast and powerful, as well as reliable and implementable software packages such as LabVIEW have considerably reduced the computational hindrances for designing, simulating and implementing sophisticated controllers. This paper presents the implementation of PID control of inverted pendulum using LabVIEW. LabVIEW is the reliable stand-alone hardware control processor and Windows independent software. The proposed algorithm shows high capabilities in learning. We show that this algorithm can be effectively applied to develop a LabVIEW VI to control the position of cart and pendulum & move it through a sequence of position as desired using the PID control algorithm. We can use the analog output to control the DC servo motor position to bring the pendulum to the reference zero position. In other words, we can bring the pendulum to the vertically erect position. For the feedback or the input device, we can use the encoder. The experimental implementation of the algorithm on the freestanding cart-mounted inverted pendulum evaluates the effectiveness and results of the proposed algorithm.

Keywords: Control systems, LabVIEW, PID, Inverted Pendulum.