# IEEE Transactions on Energy Conversion

## Issue 3 • Sept. 2018

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## Filter Results

Displaying Results 1 - 25 of 71

Publication Year: 2018, Page(s):C1 - C4
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• ### IEEE Power & Energy Society

Publication Year: 2018, Page(s): C2
| PDF (60 KB)
• ### Analysis and Experimental Investigation of the Improved Distributed Electronic Load Controller

Publication Year: 2018, Page(s):905 - 914
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Stand-alone microhydro systems based on the self-exited induction generator (SEIG) are popular in developing countries. However, an electronic based controller is required to maintain the quality (voltage and frequency) of the generated power within an acceptable range. Conventionally, this controller is designed using a phase-controlled thyristor circuit (or more recently using a dc chopper circu... View full abstract»

• ### On-Load Analysis of Saturated Surface Permanent Magnet Machines Using Conformal Mapping and Magnetic Equivalent Circuits

Publication Year: 2018, Page(s):915 - 924
Cited by:  Papers (1)
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This paper presents an iterative method based on conformal mapping and magnetic equivalent circuits for on-load analysis of saturated surface permanent magnet machines with integer slot and fractional slot windings. Magnetic saturation is taken into account by defining additional point wires in the stator slots and interpolar region between the magnets. The added point wires create magnetomotive f... View full abstract»

• ### A Diagnosis Algorithm for Multiple Open-Circuited Faults of Microgrid Inverters Based on Main Fault Component Analysis

Publication Year: 2018, Page(s):925 - 937
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This paper presents a new open-circuit fault diagnosis algorithm for multiple switch of microgrid inverter in different load change condition. From the analysis of the waveform features and frequency composition for the main fault component under the different switch states, a low frequency sampling principle of the main fault component is developed. For the proposed fault diagnosis algorithm, fir... View full abstract»

• ### Diagnosis and Mitigation of Sensor Malfunctioning in a Permanent Magnet Synchronous Generator Based Wind Energy Conversion System

Publication Year: 2018, Page(s):938 - 948
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An approach for diagnosis and mitigation of sensor malfunctioning in a permanent magnet synchronous generator based direct-drive variable speed wind energy conversion system (WECS) is presented in this paper. Malfunctioning of current sensors causes erroneous grid- and machine-side current measurements, which significantly affect the operation of grid- and machine-side controllers, and in turn, pe... View full abstract»

• ### A Novel Fourth-Order Generalized Integrator Based Control Scheme for Multifunctional SECS in the Distribution System

Publication Year: 2018, Page(s):949 - 958
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This paper presents a novel fourth-order generalized integrator using a frequency locked loop (FOGI-FLL) based control algorithm for a single-stage three-phase grid-interfaced solar energy conversion system (SECS) with the distribution static compensation (DSTATCOM) capabilities. The proposed FOGI-FLL control algorithm suffices multifarious power quality objectives in the distribution network such... View full abstract»

• ### Vibration Suppression for Flux-Switching PM Machines

Publication Year: 2018, Page(s):959 - 969
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The flux switching permanent magnet (FSPM) machines are widely studied in recent years due to their robust rotor structure, good flux-weakening capability, good heat dissipation, etc. Nevertheless, they always suffer from serious vibration and noise as a result of the doubly-salient structure. In this paper, the analytical expression of the air-gap electromagnetic force in regular FSPM machines is... View full abstract»

• ### Power-Angle Synchronization for Grid-Connected Converter With Fault Ride-Through Capability for Low-Voltage Grids

Publication Year: 2018, Page(s):970 - 979
Cited by:  Papers (1)
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In this paper, the power-angle synchronization control of a grid-tied bidirectional dc–ac converter is investigated for low-voltage grids. The power flow equations for the low-voltage grid are analyzed and compensators are designed to ensure the decoupled control of active and reactive power. The proposed control system operates without the need for a phase-locked loop during balanced and unbalanc... View full abstract»

• ### A${H_\infty }$Robust Active and Reactive Power Control Scheme for a PMSG-Based Wind Energy Conversion System

Publication Year: 2018, Page(s):980 - 990
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This paper presents a new${H_\infty }$based robust control scheme applied to a permanent magnet synchronous generator (PMSG) based wind energy conversion system (WECS) to regulate the active and reactive power. During the operation, parameters of the PMSG may vary which may lead to variation in the WECS dynamics, thus, the cont... View full abstract»

• ### A Direct PWM Voltage Controller of MPPT & Sizing of DC Loads for Photovoltaic System

Publication Year: 2018, Page(s):991 - 1001
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In a photovoltaic (PV) system, the appropriate voltage regulation is essential to guarantee the maximum power operation. In this paper, a direct pulse width modulation controller based on a single gain (k) is presented. This controller directly estimates the duty cycle (D) through gaink,and simultaneously its mathematical operation contains the pr... View full abstract»

• ### Control of a Three-Phase Hybrid Converter for a PV Charging Station

Publication Year: 2018, Page(s):1002 - 1014
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Hybrid boost converter (HBC) has been proposed to replace a dc/dc boost converter and a dc/ac converter to reduce conversion stages and switching loss. In this paper, control of a three-phase HBC in a Photovoltaic (PV) charging station is designed and tested. This HBC interfaces a PV system, a dc system with a hybrid plug-in electrical vehicles, and a three-phase ac grid. The control of the HBC is... View full abstract»

• ### An Improved Torque Density Synchronous Reluctance Machine With a Combined Star–Delta Winding Layout

Publication Year: 2018, Page(s):1015 - 1024
Cited by:  Papers (1)
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This paper investigates the performance of synchronous reluctance motors when the stator is equipped with a combined star–delta winding layout. The conventional star winding is used as a benchmark in this study to compare different possible single-layer winding layouts. Among these different winding layouts, those which maximize the fundamental magneto-motive force component are selected. A simple... View full abstract»

• ### Analysis and Comparative Study of Flux Weakening Capability in Fractional-Slot Concentrated Windings

Publication Year: 2018, Page(s):1025 - 1035
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This paper presents a detailed investigation of the winding inductance and the flux weakening capability in fractional-slot motors equipped with concentrated windings. An analytical model has been developed for evaluating the winding inductance by merging existent theories. Subsequently, a simple factor called weakening factor, which is proportional to thed-axis inductance and the... View full abstract»

• ### Analysis of High-Frequency Resonance in DFIG-Based Offshore Wind Farm via Long Transmission Cable

Publication Year: 2018, Page(s):1036 - 1046
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During the past two decades, the doubly fed induction generator (DFIG) based wind farm has been under rapid growth, and the increasing wind power penetration has been seen. Practically, these wind farms are connected to the three-phase ac grid through long transmission cable which can be modeled as several Π units. The impedance of this cable cannot be neglected and requires careful investigation ... View full abstract»

• ### An Intelligent-Based Fault-Tolerant System for Solar-Fed Cascaded Multilevel Inverters

Publication Year: 2018, Page(s):1047 - 1057
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This paper presents an intelligent-based fault-tolerant system for a solar photovoltaic (PV) inverter. Artificial neural network based controller is used to monitor, detect, and diagnose the faults in solar PV panels, battery, semiconductor switches, and inverters. The cascaded multilevel inverter is connected across the combination of solar PV panel and battery for dc–ac conversion. The major adv... View full abstract»

• ### Metamodeling of Rotating Electric Machinery

Publication Year: 2018, Page(s):1058 - 1071
| | PDF (1937 KB) | HTML

This work sets forth an approach whereby a system designer can rapidly estimate the size versus loss characteristics of a class of electric machinery, and the impact of this tradeoff at the system level. In essence, the methodology provides the first physics-based multiobjective scaling law for a Pareto-optimal front capturing the tradeoff between size and loss as a function of speed and requireme... View full abstract»

• ### Planetary Gear Fault Detection Based on Mechanical Torque and Stator Current Signatures of a Wound Rotor Induction Generator

Publication Year: 2018, Page(s):1072 - 1085
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In this paper, an approach for tooth localized fault detection in the sun gear of a planetary gear, using the measured mechanical torque and the stator current of a wound rotor induction generator (WRIG), is proposed. A theoretical background is developed to demonstrate that the faulty sun gear produces periodic fault signatures in the mechanical torque and consequently fault-related frequencies i... View full abstract»

• ### A Novel Dynamic Switching Table Based Direct Power Control Strategy for Grid Connected Converters

Publication Year: 2018, Page(s):1086 - 1097
Cited by:  Papers (1)
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Direct power control (DPC) has gained much attention for medium-voltage applications due to its fast power control capability. However, a conventional static switching table based DPC can lead to unsatisfactory response when the converter is connected to an electric grid because it is commonly designed assuming ideal and constant voltages of the grid and the dc link. Therefore, the actual grid vol... View full abstract»

• ### Continuous Time Formulation for Magnetic Relaxation Using the Steinmetz Equation

Publication Year: 2018, Page(s):1098 - 1107
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This paper sets forth a new magnetic core loss model to predict core loss in electric machines and power electronic magnetic components. It introduces an alternative method to model magnetic relaxation using a continuous waveform formulation, which significantly improves the accuracy of core loss prediction for arbitrarily complex flux density waveforms. The proposed method is experimentally valid... View full abstract»

• ### Design and Analysis of a Five-Phase SPM Machine Considering Third Harmonic Current Injection

Publication Year: 2018, Page(s):1108 - 1117
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This paper analytically derives the optimal third harmonic current to improve the output torque in five-phase surface-mounted permanent magnet (SPM) machines under the constraints of the same peak/rms value. The relationship between the output torque and the third harmonic current is established and its optimal value for maximizing the output torque is derived. It is found that the optimal third h... View full abstract»

• ### Predictive Control of Bidirectional Voltage Source Converter With Reduced Current Harmonics and Flexible Power Regulation Under Unbalanced Grid

Publication Year: 2018, Page(s):1118 - 1131
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This paper proposes a simplified and improved model predictive current control (MPCC) scheme for grid-connected bidirectional voltage source converter (GC-BVSC) when the unbalanced grid voltages occur. In conditions of unbalanced grid voltage, the current harmonic components of the GC-BVSC increase significantly, and twice grid-frequency ripple exist in both active power and reactive power, which ... View full abstract»

• ### Optimal Charge Pattern for the High-Performance Multistage Constant Current Charge Method for the Li-Ion Batteries

Publication Year: 2018, Page(s):1132 - 1140
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In this paper, a method is introduced to find out the optimal charge pattern (OCP) of the multistage constant current (MSCC) charge method based on the equivalent circuit model of a Li-ion battery. Unlike the conventional methods, the proposed one does not require several kinds of time-consuming and labor-intensive experiments. The OCP can be simply calculated by the developed equations with the r... View full abstract»

• ### Multiphysics Design of a V-Shape IPM Motor

Publication Year: 2018, Page(s):1141 - 1153
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In this paper, a multiphysics model is proposed for a multi-V-shape interior permanent magnet motor with concentrated winding. This paper develops a nonlinear magnetic model that computes the flux density in the motor. The analytical model includes several novel aspects: it takes into account the local saturation near the iron bridges, it proposes a method for modeling the concentrated tooth windi... View full abstract»

• ### Considerations on the Effects That Core Material Machining Has on an Electrical Machine's Performance

Publication Year: 2018, Page(s):1154 - 1163
Cited by:  Papers (2)
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An often-overlooked aspect during the development process of electrical machines is the validity and accuracy of the machine material properties being used at the design stage. Designers usually consider the data provided by the material supplier, which are measured on material in an unprocessed state. However, the fact that the machining processes required to produce the finished product (e.g., t... View full abstract»

## Aims & Scope

The IEEE Transactions on Energy Conversion includes in its venue the research, development, design, application, construction, installation, operation, analysis and control of electric power generating and energy storage equipment (along with conventional, cogeneration, nuclear, distributed or renewable sources, central station and grid connection). The scope also includes electromechanical energy conversion, electric machinery, devices, systems and facilities for the safe, reliable, and economic generation and utilization of electrical energy for general industrial, commercial, public, and domestic consumption of electrical energy.

Full Aims & Scope

## Meet Our Editors

Editor-in-Chief
Juri Jatskevich
University of British Columbia