Next Article in Journal
Green Energy Fuelling Stations in Road Transport: Poland in the European and Global Context
Previous Article in Journal
Flexible Demand Side Management in Smart Cities: Integrating Diverse User Profiles and Multiple Objectives
Previous Article in Special Issue
Quasi-Static Tractor Implement Model for Assessing Energy Savings in Partial Electrification
 
 
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Control Range and Power Efficiency of Multiphase Cage Induction Generators Operating Alone at a Varying Speed on a Direct Current Load

Faculty of Electrical and Computer Engineering, Cracow University of Technology, Warszawska 24 Str., 31-155 Cracow, Poland
Energies 2025, 18(15), 4108; https://doi.org/10.3390/en18154108 (registering DOI)
Submission received: 29 June 2025 / Revised: 26 July 2025 / Accepted: 30 July 2025 / Published: 2 August 2025
(This article belongs to the Special Issue Advanced Technologies for Electrified Transportation and Robotics)

Abstract

The aim of the article is to determine the control range of a multiphase squirrel cage induction generator with more than three stator phases, operating in a wide range of driving speeds. The generator produces an output DC voltage using a multiphase converter operating as a PWM rectifier. The entire speed range is divided into intervals in which the sequence of stator phase voltages and, in effect, the number of pole pairs, is changed. In each interval, the output voltage is regulated by the frequency and amplitude of the stator voltages causing the highest possible power efficiency of the generator. The system can be scalar controlled or regulated using field orientation. Generator characteristics are calculated based on the set of steady-state equations derived from differential equations describing the multiphase induction machine. The calculation results are compared with simulations and with the steady-state measurement of the vector-controlled nine-phase generator. Recognizing the reliability of the obtained results, calculations are performed for a twelve-phase generator, obtaining satisfactory efficiency from 70% to 85% in the generator speed range from 0.2 to 1.0 of the assumed reference speed of 314 rad/s. The generator producing DC voltage can charge an electrical energy storage system or can be used directly to provide electrical power. This solution is not patented.
Keywords: steady state characteristics of multiphase induction generators; power efficiency of multiphase induction generator; multiphase induction generator control steady state characteristics of multiphase induction generators; power efficiency of multiphase induction generator; multiphase induction generator control

Share and Cite

MDPI and ACS Style

Drozdowski, P. Control Range and Power Efficiency of Multiphase Cage Induction Generators Operating Alone at a Varying Speed on a Direct Current Load. Energies 2025, 18, 4108. https://doi.org/10.3390/en18154108

AMA Style

Drozdowski P. Control Range and Power Efficiency of Multiphase Cage Induction Generators Operating Alone at a Varying Speed on a Direct Current Load. Energies. 2025; 18(15):4108. https://doi.org/10.3390/en18154108

Chicago/Turabian Style

Drozdowski, Piotr. 2025. "Control Range and Power Efficiency of Multiphase Cage Induction Generators Operating Alone at a Varying Speed on a Direct Current Load" Energies 18, no. 15: 4108. https://doi.org/10.3390/en18154108

APA Style

Drozdowski, P. (2025). Control Range and Power Efficiency of Multiphase Cage Induction Generators Operating Alone at a Varying Speed on a Direct Current Load. Energies, 18(15), 4108. https://doi.org/10.3390/en18154108

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Article metric data becomes available approximately 24 hours after publication online.
Back to TopTop