Iterative Learning Control for Nonlinear Weighing and Feeding Process

Table 1

Some notations used in this paper.

Symbol	Definition
	The time and batch index, respectively
	The time period in a batch and the total number of batches, respectively
	The set of real number
	The identity matrix and the zero matrix with appropriate dimensions, respectively
	The output frequency and input voltage of the inverter, respectively
	The motor speed
	The feeding rate
	The weight of the material in the weighing hopper