All Outputs (77)

A Control Algorithm Based on the Conservative Power Theory for Cooperative Sharing of Imbalances in 4-Wire Systems (2018)
Journal Article

© 1986-2012 IEEE. A cooperative control scheme based on the conservative power theory (CPT) is proposed, which can share imbalances in three-phase four-wire droop-controlled systems. By utilizing the CPT, the balanced, unbalanced, and distorted compo... Read More about A Control Algorithm Based on the Conservative Power Theory for Cooperative Sharing of Imbalances in 4-Wire Systems.

A DC-DC boost converter with a wide input range and high voltage gain for fuel cell vehicles (2018)
Journal Article

In fuel cell vehicles, the output voltage of the fuel cell source is typically much lower than the voltage required by the DC bus and also this output voltage drops significantly as the output current increases. In order to match the output voltage o... Read More about A DC-DC boost converter with a wide input range and high voltage gain for fuel cell vehicles.

Influence of an inverter based DG on a double-ended fault location scheme (2018)
Journal Article

This paper describes the influence of Distributed Generation (DG) on a double ended fault location based on measuring the high frequency fault transients. The additional non-fundamental frequency current components from DG will influence the accuracy... Read More about Influence of an inverter based DG on a double-ended fault location scheme.

Hybrid switched-capacitor/switched-quasi-Z-source bidirectional DC-DC converter with wide-voltage-gain range for hybrid energy sources EVs (2018)
Journal Article

In this paper, a hybrid switched-capacitor/ switched-quasi-Z-source bidirectional dc-dc converter is proposed for electric vehicles (EVs) with hybrid energy sources, which has a wide voltage gain range in the bidirectional energy flows. Compared with... Read More about Hybrid switched-capacitor/switched-quasi-Z-source bidirectional DC-DC converter with wide-voltage-gain range for hybrid energy sources EVs.

An independently controlled energy storage to support short term frequency fluctuations in weak electrical grids (2018)
Journal Article

This paper proposes the use of Energy Storage (ES) to support frequency fluctuations in weak grids powered by low-power synchronous generators (SGs). Traditionally, large synchronous generators rely on high inertia and governor control to guarantee t... Read More about An independently controlled energy storage to support short term frequency fluctuations in weak electrical grids.

Predictive frequency-based sequence estimator for control of grid-tied converters under highly distorted conditions (2018)
Journal Article

This paper proposes a novel frequency-based predictive sequence estimator that allows for the isolation of voltages and currents harmonic components needed for the control of grid-tied converters. The proposed method relays on an enhanced Sliding Goe... Read More about Predictive frequency-based sequence estimator for control of grid-tied converters under highly distorted conditions.

An enhanced hybrid switching-frequency modulation strategy for fuel cell vehicle three-level DC-DC converters with quasi-Z source (2018)
Journal Article

For fuel cell vehicles, the fuel cell stack has a soft output characteristic whereby the output voltage drops quickly with the increasing output current. In order to interface the dynamic low voltage of the fuel cell stack with the required constant... Read More about An enhanced hybrid switching-frequency modulation strategy for fuel cell vehicle three-level DC-DC converters with quasi-Z source.

Wide voltage-gain range asymmetric H-bridge bidirectional DC-DC converter with common ground for energy storage systems (2018)
Journal Article

A wide-voltage-conversion range bidirectional DC-DC converter is proposed in this paper. The topology is comprised of one typical LC energy storage component and the special common grounded asymmetric H-bridge with four active power switches/anti-par... Read More about Wide voltage-gain range asymmetric H-bridge bidirectional DC-DC converter with common ground for energy storage systems.

Observer-based pulsed signal injection for grid impedance estimation in three phase systems (2018)
Journal Article

This paper addresses the estimation of the grid impedance and the control of grid-tied converters by combining pulsed-signal injection and observer based techniques. A Luenberger based observer is used for controlling the grid-side current of an LCL... Read More about Observer-based pulsed signal injection for grid impedance estimation in three phase systems.

A switched-capacitor bidirectional DC-DC converter with wide voltage gain range for electric vehicles with hybrid energy sources (2018)
Journal Article

A switched-capacitor bidirectional DC-DC converter with a high step-up/step-down voltage gain is proposed for electric vehicles (EVs) with a hybrid energy source system (HESS). The converter presented has the advantages of being a simple circuit, a r... Read More about A switched-capacitor bidirectional DC-DC converter with wide voltage gain range for electric vehicles with hybrid energy sources.

Single-Switch, Wide Voltage-Gain Range, Boost DC–DC Converter for Fuel Cell Vehicles (2017)
Journal Article

In order to match voltages between the fuel cell stacks and the DC link bus of fuel cell vehicles, a single-switch Boost DC-DC converter with diode-capacitor modules is proposed in this paper. The capacitors are charged in parallel and discharged in... Read More about Single-Switch, Wide Voltage-Gain Range, Boost DC–DC Converter for Fuel Cell Vehicles.

A common ground switched-quasi-Z-source bidirectional DC-DC converter with wide-voltage-gain range for EVs with hybrid energy sources (2017)
Journal Article

A common ground switched-quasi-Z-source bidirectional DC-DC converter is proposed for electric vehicles (EVs) with hybrid energy sources. The proposed converter is based on the traditional two-level quasi-Z-source bidirectional DC-DC converter, chang... Read More about A common ground switched-quasi-Z-source bidirectional DC-DC converter with wide-voltage-gain range for EVs with hybrid energy sources.

A Wide Input-Voltage Range Quasi-Z-Source Boost DC–DC Converter With High-Voltage Gain for Fuel Cell Vehicles (2017)
Journal Article

A quasi-Z-source Boost DC-DC converter which uses a switched-capacitor is proposed for fuel cell vehicles. The topology can obtain a high voltage gain with a wide input-voltage range, and requires only a low voltage stress across each of the componen... Read More about A Wide Input-Voltage Range Quasi-Z-Source Boost DC–DC Converter With High-Voltage Gain for Fuel Cell Vehicles.

Grid impedance estimation for islanding detection and adaptive control of converters (2017)
Journal Article

Power system (grid) impedance is time varying due to the changing structure of the power system configuration and it can have a considerable influence on the control and stability of grid connected converters. This paper presents an online grid imped... Read More about Grid impedance estimation for islanding detection and adaptive control of converters.

Fault detection for PMSM motor drive systems by monitoring inverter input currents (2017)
Journal Article

This paper has proposed a fault detecting method for DC supplied permanent magnet synchronize motor (PMSM) drive systems by monitoring the drive DC input current. This method is based on the fault signal propagation from the torque disturbance on the... Read More about Fault detection for PMSM motor drive systems by monitoring inverter input currents.

Interleaved switched-capacitor bidirectional DC-DC converter with wide voltage-gain range for energy storage systems (2017)
Journal Article

In this paper, an interleaved switched-capacitor bidirectional DC-DC converter with a high step-up/step-down voltage gain is proposed. The interleaved structure is adopted in the low-voltage side of this converter to reduce the ripple of the current... Read More about Interleaved switched-capacitor bidirectional DC-DC converter with wide voltage-gain range for energy storage systems.

Predicting harmonic distortion of multiple converters in a power system (2017)
Journal Article

Various uncertainties arise in the operation and management of power systems containing Renewable Energy Sources (RES) that affect the systems power quality. These uncertainties may arise due to system parameter changes or design parameter choice. In... Read More about Predicting harmonic distortion of multiple converters in a power system.

Historical data based energy management in a microgrid with a hybrid energy storage system (2017)
Journal Article

In a micro-grid, due to potential reverse output profiles of the Renewable Energy Source (RES) and the load, energy storage devices are employed to achieve high self-consumption of RES and to minimize power surplus flowing back into the main grid. Th... Read More about Historical data based energy management in a microgrid with a hybrid energy storage system.

Input-Parallel Output-Series DC-DC Boost Converter With a Wide Input Voltage Range, For Fuel Cell Vehicles (2017)
Journal Article

An input-parallel, output-series DC-DC Boost converter with a wide input voltage range is proposed in this paper. An interleaved structure is adopted in the input side of this converter to reduce input current ripple. Two capacitors are connected in... Read More about Input-Parallel Output-Series DC-DC Boost Converter With a Wide Input Voltage Range, For Fuel Cell Vehicles.

Fault signal propagation through the PMSM motor drive systems (2017)
Journal Article

This paper describes how a mechanical disturbance on the shaft of a variable speed permanent magnet motor (PMSM) is propagated to the supply input side of the drive system, and therefore may be detected by monitoring specific frequency components in... Read More about Fault signal propagation through the PMSM motor drive systems.