All Outputs (77)

Optimized space-vector-modulated quasi Z-source NPC inverter for solar PV application (2019)
Journal Article
Effah, F. B., Okyere, P. Y., Wheeler, P., Watson, A., & Clare, J. (2019). Optimized space-vector-modulated quasi Z-source NPC inverter for solar PV application. Carpathian Journal of Electrical Engineering, 13(1), 17-29

An optimized space vector modulation technique for controlling a quasi Z-source NPC inverter for solar photovoltaic application is presented in this paper. The presented algorithm optimizes the number of switching transitions over a switching cycle b... Read More about Optimized space-vector-modulated quasi Z-source NPC inverter for solar PV application.

THREE-LEVEL INDIRECT MATRIX CONVERTER WITH TWO SERIES Z-SOURCE NETWORKS. (2019)
Journal Article
Boafo Effah, F., Okyere, P., Sani Ellis, M., Wheeler, P., Watson, A., Clare, J., & Ojo, J. (2019). THREE-LEVEL INDIRECT MATRIX CONVERTER WITH TWO SERIES Z-SOURCE NETWORKS. Carpathian Journal of Electrical Engineering, 13(1), 61-76

In previous articles, the concept of series Z-source network has been extended to conventional indirect matrix converter to raise the voltage gain to unity and beyond. In this paper, this idea is modified and applied to a three-level indirect matrix... Read More about THREE-LEVEL INDIRECT MATRIX CONVERTER WITH TWO SERIES Z-SOURCE NETWORKS..

Moving discretized control set model-predictive control for dual-active bridge with the triple-phase shift (2019)
Journal Article
Chen, L., Lin, L., Shao, S., Gao, F., Wang, Z., Wheeler, P. W., & Dragicevic, T. (2020). Moving discretized control set model-predictive control for dual-active bridge with the triple-phase shift. IEEE Transactions on Power Electronics, 35(8), 8624-8637. https://doi.org/10.1109/TPEL.2019.2962838

Triple-phase shift (TPS) is commonly utilized to enhance the efficiency of the dual-active-bridge (DAB) converters. However, the small-signal model of the circuit varies with operating mode, terminal voltage ratio, and power. In order to address this... Read More about Moving discretized control set model-predictive control for dual-active bridge with the triple-phase shift.

Multi-modular scalable DC-AC power converter for current injection to the grid based on predictive voltage control (2019)
Presentation / Conference Contribution
Toledo, S., Rivera, M., Maqueda, E., Ayala, M., Pacher, J., Romero, C., Gregor, R., Dragicevic, T., & Wheeler, P. (2019, December). Multi-modular scalable DC-AC power converter for current injection to the grid based on predictive voltage control. Presented at 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference (COBEP/SPEC 2019), Sao Paolo, Brazil

Increasing world electrical energy demand make necessary to develop new efficient and reliable schemes for power injection to the existing grid under distributed generation frames. In this work a novel DC-AC control scheme is proposed, which is based... Read More about Multi-modular scalable DC-AC power converter for current injection to the grid based on predictive voltage control.

Integrating a Single Z-Source Network with a Modular Multilevel Converter for Voltage Boosting (2019)
Presentation / Conference Contribution
Khera, F. A., Wheeler, P. W., & Klumpner, C. (2019, December). Integrating a Single Z-Source Network with a Modular Multilevel Converter for Voltage Boosting. Presented at 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference (COBEP/SPEC 2019), Sao Paolo, Brazil

This paper proposes the integration of a Z-source network with the modular multilevel converter (MMC) to add voltage boosting capability to a voltage step down converter. To limit the increase in complexity, the proposed Z-source modular multilevel c... Read More about Integrating a Single Z-Source Network with a Modular Multilevel Converter for Voltage Boosting.

Reliability Analysis of aircraft starter generator drive converter (2019)
Presentation / Conference Contribution
Harikumaran, J., Buticchi, G., Galea, M., Costabeber, A., & Wheeler, P. (2019, December). Reliability Analysis of aircraft starter generator drive converter. Presented at 2019 - 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference (COBEP/SPEC), Sao Paolo, Brazil

Under the more electric aircraft (MEA) theme, many aircraft systems are being electrified. In a previous research work, an electric starter generator system for aircrafts was implemented. This paper presents the reliability of the drive converter-a 3... Read More about Reliability Analysis of aircraft starter generator drive converter.

Predictive Voltage Control Operating at Fixed Switching Frequency of a Neutral-Point Clamped Converter (2019)
Presentation / Conference Contribution
Herrera, F., Cárdenas, R., Rivera, M., Riveros, J. A., & Wheeler, P. (2019, December). Predictive Voltage Control Operating at Fixed Switching Frequency of a Neutral-Point Clamped Converter. Presented at 2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference (COBEP/SPEC), Sao Paulo, Brazil

Uninterruptible power supply units are system formed by power electronics converters to supply sinusoidal voltages to feed critical loads. In this paper, a fixed switching frequency model predictive control strategy is presented for the control of th... Read More about Predictive Voltage Control Operating at Fixed Switching Frequency of a Neutral-Point Clamped Converter.

Modulated Model Predictive Current Control for PMSM Operating With Three-level NPC Inverter (2019)
Presentation / Conference Contribution
Wang, Q., Rivera, M., Riveros, J. A., & Wheeler, P. (2019, December). Modulated Model Predictive Current Control for PMSM Operating With Three-level NPC Inverter. Presented at 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference (COBEP/SPEC 2019), San Paolo, Brazil

In finite control set model predictive control (FCS-MPC) strategy only one basic voltage vector is to be selected in per periodic time, which causes big current ripple as well as the torque ripple of permanent magnet synchronous motor (PMSM). To solv... Read More about Modulated Model Predictive Current Control for PMSM Operating With Three-level NPC Inverter.

The Voltage Source Inverter (2019)
Presentation / Conference Contribution
Gutierrez, R., Rivera, M., & Wheeler, P. (2019, November). The Voltage Source Inverter. Presented at 2019 IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON), Valparaiso, Chile

This paper presents the Voltage Source Inverter. On this paper it will be discussed its topology, mathematical model, switching states and the characteristic curves of the inverter. Moreover, the authors will analyze the concept of “dead time”, aimin... Read More about The Voltage Source Inverter.

Architectures for Microgrids Interconnection (2019)
Presentation / Conference Contribution
Diaz, F., Rivera, M., & Wheeler, P. (2019, November). Architectures for Microgrids Interconnection. Presented at 2019 IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON), Valparaiso, Chile

Progress requires greater global energy interconnection. This paper presents an overview of the topologies and control techniques applied to microgrids, by means of an updated bibliographic research and the most relevant articles on the use of power... Read More about Architectures for Microgrids Interconnection.

Model Predictive Control in Three-Phase Inverters (2019)
Presentation / Conference Contribution
Perez-Guzman, R. E., Rivera, M., Vicencio, N., & Wheeler, P. W. (2019, November). Model Predictive Control in Three-Phase Inverters. Presented at 2019 IEEE Chilean Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON), Valparaiso, Chile

Model-based predictive control is a recent alternative to improve the quality of the output in power converters. In this research, predictive current control is implemented in a voltage source inverter, operating at a variable switching frequency and... Read More about Model Predictive Control in Three-Phase Inverters.

Predictive Control Strategies in Power Converters (2019)
Presentation / Conference Contribution
Perez-Guzman, R. E., Rivera, M., & Wheeler, P. W. (2019, November). Predictive Control Strategies in Power Converters. Presented at 2019 IEEE Chilean Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON), Valparaiso, Chile

Model-based predictive control (MPC) is an attractive solution for controlling power converters. In this article the most recent investigations related to predictive control are addressed and the solutions proposed by the researchers are shown, illus... Read More about Predictive Control Strategies in Power Converters.

Present and Future of the Chilean Electrical Grid (2019)
Presentation / Conference Contribution
Diaz, F., Rivera, M., Chavez, H., & Wheeler, P. (2019, November). Present and Future of the Chilean Electrical Grid. Presented at 2019 IEEE Chilean Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON), Valparaiso, Chile

This paper presents a description of the current reality of the Chilean electricity sector and its future. The vision and its advancements in Chile are matter of observation to develop a clearer picture for maintaining and increasing the penetration... Read More about Present and Future of the Chilean Electrical Grid.

Weighting Factor Design in Model Predictive Control for Power Converters (2019)
Presentation / Conference Contribution
Perez-Guzman, R. E., Rivera, M., & Wheeler, P. W. (2019, November). Weighting Factor Design in Model Predictive Control for Power Converters. Presented at 2019 IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON), Valparaiso, Chile

Model-based predictive control is an important multi-objective control strategy in power converters, but it must be properly designed. This research shows different alternatives to improve the cost function in model-based predictive control. For this... Read More about Weighting Factor Design in Model Predictive Control for Power Converters.

Implementation of Predictive Control in a Three-Phase Neutral Point Clamped Inverter (2019)
Presentation / Conference Contribution
Perez-Guzman, R. E., Herrera, F., Rivera, M., Riveros, J., & Wheeler, P. W. (2019, November). Implementation of Predictive Control in a Three-Phase Neutral Point Clamped Inverter. Presented at 2019 IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON), Valparaiso, Chile

In recent years, multilevel converters have established themselves as an efficient technology for the conversion of medium and high power. This research presents a NPC multilevel inverter topology, using two new control strategies: classical predicti... Read More about Implementation of Predictive Control in a Three-Phase Neutral Point Clamped Inverter.

Direct Power Control of Modular Multilevel Matrix Converter for Flexible AC Transmission System Applications (2019)
Presentation / Conference Contribution
Wheeler, P., Duran, A., Rojas, F., Diaz, M., & Ibaceta, E. (2019, November). Direct Power Control of Modular Multilevel Matrix Converter for Flexible AC Transmission System Applications. Presented at 2019 IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON), Valparaiso, Chile

The Modular Multilevel Matrix Converter (M3C) has been proposed as an appropriate alternative for high-power machines due to characteristics such as modularity, medium-voltage operation, high power quality and reliability. However, complex control sy... Read More about Direct Power Control of Modular Multilevel Matrix Converter for Flexible AC Transmission System Applications.

Wind Energy Development and Technology in the World: A Brief Overview (2019)
Presentation / Conference Contribution
Elizondo, J. L., Rivera, M., & Wheeler, P. (2019, November). Wind Energy Development and Technology in the World: A Brief Overview. Presented at 2019 IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON), Valparaiso, Chile

A brief overview of wind energy 2018 market status with short- and long-term projections will be presented, as well as the wind turbine technologies and market share. Furthermore, clean energy goals from the governments of Denmark, Mexico and Chile w... Read More about Wind Energy Development and Technology in the World: A Brief Overview.

Experimental Validation of a quasi Z-Source Modular Multilevel Converter with DC Fault Blocking Capability (2019)
Journal Article
Khera, F., Klumpner, C., & Wheeler, P. (2021). Experimental Validation of a quasi Z-Source Modular Multilevel Converter with DC Fault Blocking Capability. IEEE Journal of Emerging and Selected Topics in Power Electronics, 9(2), 1951-1965. https://doi.org/10.1109/jestpe.2019.2955859

This paper considers the design methodology and the modulation of the quasi Z-source modular multilevel converter (qZS-MMC) with half bridge sub-modules and evaluates its performance in voltage boosting mode for medium voltage applications. The qZS-M... Read More about Experimental Validation of a quasi Z-Source Modular Multilevel Converter with DC Fault Blocking Capability.

Predictive Voltage Control of the Direct Matrix Converter applied to Grid Current Injection (2019)
Presentation / Conference Contribution
Toledo, S., Rivera, M., Dragicevic, T., Caballero, D., Wheeler, P., & Gregor, R. (2019, November). Predictive Voltage Control of the Direct Matrix Converter applied to Grid Current Injection. Presented at IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON 2019)), Valparaiso, Chile

Predictive control applied to direct matrix converter provide a feasible option to control the output voltage of a generation system with good performance. In this work a predictive voltage control strategy is proposed as the inner loop control of an... Read More about Predictive Voltage Control of the Direct Matrix Converter applied to Grid Current Injection.

Control Techniques for a Single-Phase Matrix Converter (2019)
Presentation / Conference Contribution
Rojas, S., Rivera, M., & Wheeler, P. (2019, November). Control Techniques for a Single-Phase Matrix Converter. Presented at 2019 IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON), Valparaiso, Chile

The direct single-phase matrix converter (SPMC) is a topology composed only of switches. This feature makes it extremely important to have complete control of the six bidirectional switches that make up it. This is why this article presents a compari... Read More about Control Techniques for a Single-Phase Matrix Converter.