Outputs (7)

An Improved Control Strategy of PM-Assisted Synchronous Reluctance Machines Based on an Extended State Observer (2022)
Presentation / Conference Contribution
Li, D., Gu, C., Wang, S., Zhang, H., Gerada, C., Camilleri, R., & Zhang, Y. (2022, October). An Improved Control Strategy of PM-Assisted Synchronous Reluctance Machines Based on an Extended State Observer. Presented at 2022 IEEE Transportation Electrification Conference and Expo, Asia-Pacific (ITEC Asia-Pacific), Haining, China

PM-Assisted synchronous reluctance machines (PMSynRM) show large speed fluctuations and poor dynamic response when encountering a large disturbance. Additionally, the PI controller is not capable of eliminating steady-state errors when disturbances a... Read More about An Improved Control Strategy of PM-Assisted Synchronous Reluctance Machines Based on an Extended State Observer.

Sensorless control of IPMSM using a discrete-time super twisting observer by high-frequency current injection in low speed region (2022)
Journal Article
Xu, Z., & Gerada, C. (2022). Sensorless control of IPMSM using a discrete-time super twisting observer by high-frequency current injection in low speed region. Energy Reports, 8(Suppl 15), 650-657. https://doi.org/10.1016/j.egyr.2022.10.166

Control of interior permanent magnet synchronous motors (IPMSMs) has been extensively attempted without any position sensor. At extremely low speeds, sensorless operation would not rely on the fundamental model-based sensorless methods since the situ... Read More about Sensorless control of IPMSM using a discrete-time super twisting observer by high-frequency current injection in low speed region.

Dynamic power decoupling for low-voltage ride-through of grid-forming inverters (2022)
Journal Article
Ji, F., Xu, Z., & Gerada, C. (2022). Dynamic power decoupling for low-voltage ride-through of grid-forming inverters. Energy Reports, 8(Supplement 15), 247-258. https://doi.org/10.1016/j.egyr.2022.10.083

In grid-forming technologies, the power controllers emulate the operation of synchronous generator. The frequency regulation, power-decoupling and virtual inertia are mostly achieved on the basis of small-signal models. However, the transient power a... Read More about Dynamic power decoupling for low-voltage ride-through of grid-forming inverters.

Mitigation of AC Winding Losses for Aircraft Propulsion Motors (2022)
Presentation / Conference Contribution
Hebala, A., Nuzzo, S., Connor, P. H., Volpe, G., Gerada, C., & Galea, M. (2022, October). Mitigation of AC Winding Losses for Aircraft Propulsion Motors. Presented at IECON 2022 – 48th Annual Conference of the IEEE Industrial Electronics Society, Brussels, Belgium

In this paper, the AC copper losses are investigated and mitigated for different permanent magnet synchronous motor designs. AC copper losses can represent a substantial share of the total loss in electrical machines. In an application such as aerosp... Read More about Mitigation of AC Winding Losses for Aircraft Propulsion Motors.

Magnetic Field and Radial Force Analysis of Six-Phase Rotary Machine (2022)
Journal Article
Dong, Z., Yan, L., & Gerada, C. (2022). Magnetic Field and Radial Force Analysis of Six-Phase Rotary Machine. Guidance, Navigation and Control, 02(03), Article 2250011. https://doi.org/10.1142/s273748072250011x

Six-phase permanent magnet synchronous machine and the control system are also widely used in industry, precision instruments and aerospace. However, most PMSMs employ magnet patterns either in alternatively radial magnetization or Halbach array, whi... Read More about Magnetic Field and Radial Force Analysis of Six-Phase Rotary Machine.

Electromechanical Characteristics Analysis under DSISC Fault in Synchronous Generators (2022)
Journal Article
He, Y.-L., Qiu, M.-H., Yuan, X.-H., He, X.-L., Wang, H.-P., Jiang, M.-Y., Gerada, C., & Wan, S.-T. (2022). Electromechanical Characteristics Analysis under DSISC Fault in Synchronous Generators. Machines, 10(6), Article 432. https://doi.org/10.3390/machines10060432

This paper studies the electromechanical characteristics of synchronous generators under dynamic stator interturn short circuit (DSISC). First, the air gap magnetic flux density (MFD) of the generator under normal and DSISC fault was obtained. Then,... Read More about Electromechanical Characteristics Analysis under DSISC Fault in Synchronous Generators.

Electromagnetic Torque Fluctuating Properties under Dynamic RISC Fault in Turbogenerators (2022)
Journal Article
He, Y., Qiu, M., Yuan, X., Wang, H., Jiang, M., Gerada, C., & Wan, S. (2022). Electromagnetic Torque Fluctuating Properties under Dynamic RISC Fault in Turbogenerators. Energies, 15(10), Article 3821. https://doi.org/10.3390/en15103821

This paper analyzes the electromagnetic torque (EMT) fluctuation characteristics in synchronous generators under rotor interturn short-circuit (DRISC) fault. The novelty of this paper is that the DRISC fault is proposed based on the intermittent inte... Read More about Electromagnetic Torque Fluctuating Properties under Dynamic RISC Fault in Turbogenerators.