Parameter Identification and Self-Commissioning in AC Motor Drives: A Technology Status Review

Abstract

In high-performance control of ac machines through variable frequency drives, the knowledge of machine parameters plays a decisive role. The accuracy with which machine parameters can be known is directly related to the time and effort put in testing and commissioning process. In the ever-demanding industrial environments, the time spent on parameter identification translates into loss of production. To reduce commissioning times, research in this direction has focused on automatizing the identification procedure without loss of accuracy. This paper reviews different lines of research adopted over the past few decades for machine parameter identification. Parameter estimation of ac machines is considered because of their widespread applications from servomechanisms to traction to aviation. The surveyed works include self-commissioning schemes that have become an integral part and salient feature of modern electric drives. This feature enables the drives to automatically identify machine parameters and tune the control loops.

An Effective Model-Free Predictive Current Control for Synchronous Reluctance Motor Drives

“…For a fair comparison, the model-based predictive current control should be supported by proper motor parameters self-commissioning procedures [8], [9], [18], [19] or online parameter estimator algorithms [20]- [22].…”

Current-Controller-Free Self-Commissioning Scheme for Deadbeat Predictive Control in Parametric Uncertain SPMSM

“…Self-commissioning, as an important subcategory of offline parameter identification, is able to provide accurate parameters of a PMSM [18]- [22]. But some of the existing methods may need assistance from a current closed-loop controller (a proportional integral (PI) controller or a hysteresis controller).…”

Inductance Testing for IPM Synchronous Machines According to the New IEEE Std 1812 and Typical Laboratory Practices

“…The value of L d , for example, from a short circuit test, would allow L q to be determined separately. A general review of different methods for inductance testing is provided in [36]. Other work has been done to compare a few different approaches [4], [37]- [39].…”