Dynamic Response in Multiphase Electric Drives: Control Performance and Influencing Factors

Speed variable electric drives play a key role in the evolution of electrical mobility. The dynamic performance of these systems is a crucial feature for security purposes. For this reason, a large number of works are focused on identification of the most appropriate control technique to satisfy a transient scenario. In this regard, the dynamic abilities of linear and direct controllers were analysed for three-phase drives. Although some insights about their transient performance were obtained, there are yet some issues to be solved. For instance, speed response was typically omitted, some influencing factors were neglected or the multiphase case was carried out. Considering this information, this work proposes a comparative analysis of the dynamic performance of the most popular regulation strategies for a six-phase electric drive. This study analyses speed, current and voltage responses to achieve an overall view of the system performance. Two concepts were employed to simplify the comprehension of the dynamic behavior of a regulation strategy: reaction time and response capacity. Experimental results are employed to confirm the impact of the different agents on a transient situation.

Automated summary

Speed variable electric drives are crucial for the development of electrical mobility, with their dynamic performance being a key consideration for safety. This study proposes a comparative analysis of different regulation strategies for a six-phase electric drive, analyzing the responses of speed, current, and voltage to gain an overall understanding of system performance.