I have a project about single axis solar tracker control system simulation based on PID Controller with simulink. So far, I already manage to derive transfer function for the actuator (electro-pneumatic actuator). But I can't find transfer function for the 'plant', that is solar panel, which need stroke displacement as input and solar panel tilt angle as the output. Does anyone here know how to find it or have any journal/article reference about this?
My Journal Reference: https://node1.123dok.com/dt01pdf/123dok_us/001/644/1644219.pdf.pdf?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=7PKKQ3DUV8RG19BL%2F20230318%2F%2Fs3%2Faws4_request&X-Amz-Date=20230318T084731Z&X-Amz-SignedHeaders=host&X-Amz-Expires=600&X-Amz-Signature=d9637a1541d93a937a4583059f1ba247e8ada8bf8a3b54845420d34f774f173d