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- Reiko Raute, Carl Caruana, Joseph Cilia, C . Spiteri Staines, Mark Sumner
- 2007 European Conference on Power Electronics and…
- 2007

The inherent back EMF and the saliency of AC machines can be utilized to identify the rotor/flux position. A novel technique, which takes both of these effects into account is proposed in this paper. No additional test signals are injected into the machine and the difficulties in sensing the machine terminal voltage at low speed is eased. Only three… (More)

- Alexander Micallef, Maurice Apap, C . Spiteri Staines, J. M. Guerrero Zapata
- 2012 3rd IEEE International Symposium on Power…
- 2012

This paper focuses on the islanded operation of microgrids. In this mode of operation, the microsources are required to cooperate autonomously to regulate the local grid voltage and frequency. Droop control is typically used to achieve this autonomous voltage and frequency regulation. However, droop control has real and reactive power sharing limitations… (More)

- C . Spiteri Staines, G. M. Asher, Mark Sumner
- IEEE Transactions on Industry Applications
- 2006

This paper considers the position and speed estimation at low- and zero-frequency operations in standard delta-connected cage induction machines (IMs). A rotor-slot detection technique is used, where test vectors are injected during the pulsewidth-modulation (PWM) periods and the resulting zero-sequence-current derivatives (ZSCDs) are measured using a… (More)

- Kevin Spiteri, C . Spiteri Staines, Maurice Apap
- 2008 3rd International Symposium on…
- 2008

This paper describes the development of a 1.9 kVA bi-directional power flow matrix converter for the control of a three phase induction motor. The advantages of such a converter are that power flow is inherently bidirectional so that four-quadrant operation is automatically achieved, it draws sinusoidal input current and no large reactive components are… (More)

- C . Spiteri Staines, G. M. Asher, K. Bradley
- Conference Record of 1998 IEEE Industry…
- 1998

This paper describes a new method for estimating the incremental rotor position for an induction machine without using a shaft sensor. The method assumes a saturated induction motor having an engineered cage saliency spanning one pole pitch. The voltage source inverter driving the machine is also used to inject a high frequency signal which is needed to… (More)

- Daniel Zammit, C . Spiteri Staines, PV Inverters
- 2014

This paper presents a comparison between Proportional Integral (PI) and Proportional Resonant (PR) current controllers used in Grid Connected Photovoltaic (PV) Inverters. Both simulation and experimental results will be presented. A 3kW GridConnected PV Inverter was designed and constructed for this research. Keywords—Inverters, Proportional-Integral… (More)

- J.B. Bartolo, C . Spiteri Staines, Carl Caruana
- 2008 3rd International Symposium on…
- 2008

This paper considers the general principles of saliency tracking in AC machines. Special attention is given to pulse type injection for the extraction of a rotor or flux position signal. The saliency is tracked by measuring the current derivative resulting from voltage 'test' vector application. Results show tracking of 'saturation' saliency on a standard… (More)

- C . Spiteri Staines, G. M. Asher, Mark Sumner
- Conference Record of the 2004 IEEE Industry…
- 2004

This paper considers the position and speed estimation at low and zero frequency operation in standard delta connected cage induction machines. A rotor slot detection technique is used where test vectors are injected during the PWM periods and the resulting zero sequence current derivatives are measured using a nonintegrating Rogowski coil. The rotor… (More)

- C . Spiteri Staines
- Midwives chronicle
- 1983

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