Research on model calibration method for energy consumption evaluation of cluster motor system

Abstract

In practical engineering, the conventional energy consumption calculation method of the motor system is facing many problems, such as difficulty in data acquisition, deviation of model parameters and so on. In order to ensure and improve the accuracy and evaluation ability of the energy consumption model, a calibration method based on parameter identification theory is proposed in this paper. Using the Levenberg-Marquardt algorithm, the rated efficiency, rated variable loss and constant loss parameters of the single and cluster motor systems are identified, and the correction model for the calculation of motor energy consumption is established. Taking a typical three machine cluster motor system as an example, a real physical experiment platform is built to obtain real running data. The example shows that the energy consumption model correction method proposed in this paper has strong engineering practicability, which provides an effective technical means for energy consumption assessment and energy saving transformation of motor energy system.