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Issue 7 • July-2016
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IEEE Power Electronics Society
Year: 2016 | Volume: 31 | Issue: 7
Sensorless Control for High-Speed Brushless DC Motor Based on the Line-to-Line Back EMF
Publication Year: 2016,Page(s):4669 - 4683
Cited by: Papers (104)
A sensorless control method for a high-speed brushless DC motor based on the line-to-line back electromotive force (back EMF) is proposed in this paper. In order to obtain the commutation signals, the line-to-line voltages are obtained by the low-pass filters. However, due to the low-pass filters, wide speed range, and other factors, the actual commutation signals are significantly delayed by more...Show More
Stationary Frame Fault-Tolerant Current Control of Polyphase Permanent-Magnet Machines Under Open-Circuit and Short-Circuit Faults
Publication Year: 2016,Page(s):4684 - 4696
Cited by: Papers (50)
The paper presents a stationary frame control strategy to achieve optimal current control for star-connected polyphase permanent-magnet machine under asymmetric phase faults, namely, phase open circuit (OC) and phase short-circuit (SC) condition. Current regulation under these faults is particularly challenging because optimal torque control strategy generates nonsinusoidal current references with...Show More
Detection and Discrimination of Open-Phase Fault in Permanent Magnet Synchronous Motor Drive System
Publication Year: 2016,Page(s):4697 - 4709
Open-phase fault in permanent magnet synchronous motor (PMSM) drive system occurs as the phase winding is disconnected or one leg of the inverter bridge fails. It may generate large electromagnetic torque ripple and serious mechanical vibration. Therefore, a rapid fault detection method is greatly required to identify this fault at early stage and prevent damage to the system. This paper develops ...Show More
High-Resistance Connection Detection in Permanent Magnet Synchronous Machine Using Zero-Sequence Current Component
Jun Hang;Jianzhong Zhang;Ming Cheng;Bangfu Zhang;Shichuan Ding
Publication Year: 2016,Page(s):4710 - 4719
Cited by: Papers (32)
This paper focuses on the development of an online method for diagnosing high-resistance connection (HRC) in delta-connected permanent magnet synchronous machine (PMSM) using zero-sequence current component (ZSCC). The development of this method begins with the establishment of the mathematic model of the PMSM with the HRC. Based on the model, a ZSCC-based method is proposed to diagnose the HRC. T...Show More
High-Precision Rotor Position Detection for High-Speed Surface PMSM Drive Based on Linear Hall-Effect Sensors
Publication Year: 2016,Page(s):4720 - 4731
Cited by: Papers (77)
Accurate rotor position detection is essential for the surface permanent magnet synchronous motor (SPMSM) drive system to realize the stable and reliable operation. In this paper, two linear hall-effect sensors are utilized to detect the rotor position. However, the estimated errors in the measured signals, especially the harmonic components, impact on the accuracy of the rotor angle estimation si...Show More
Turn-On Optimization for Class D Series–Parallel LCC-Type Constant Current High-Power LED Driver Design Based on Traditional Fluorescent Control IC
Publication Year: 2016,Page(s):4732 - 4741
Cited by: Papers (6)
This research investigated a method to optimize the start-up performance of a dimmable light-emitting diode (LED) driver based on half-bridge Class D series-parallel LCC topology. This LED driver is designed for outdoor or high bay applications with 347-480 Vac input voltage. The total maximum output power is 100 W with a wide tunable output current range (from 50 to 800 mA). The wide load range m...Show More
High Switching Performance of 1700-V, 50-A SiC Power MOSFET Over Si IGBT/BiMOSFET for Advanced Power Conversion Applications
Samir Hazra;Ankan De;Lin Cheng;John Palmour;Marcelo Schupbach;Brett A. Hull;Scott Allen;Subhashish Bhattacharya
Publication Year: 2016,Page(s):4742 - 4754
Cited by: Papers (193)
Due to wider band gap of silicon carbide (SiC) compared to silicon (Si), MOSFET made in SiC has considerably lower drift region resistance, which is a significant resistive component in high-voltage power devices. With low on-state resistance and its inherently low switching loss, SiC MOSFETs can offer much improved efficiency and compact size for the converter compared to those using Si devices. ...Show More
Analysis and Suppressing Method for the Output Voltage Harmonics of Modular Multilevel Converter
Publication Year: 2016,Page(s):4755 - 4765
Cited by: Papers (40)
Although many high-power voltage source converters are of three-phase three-wire type, there may also be other types of configuration with which tripplen harmonics in the ac voltage and/or current are of great concern. This paper analyzes the harmonic characteristic of the output voltage of modular multilevel converter (MMC) in cases where the third-order harmonic voltage and current are inevitabl...Show More
High-Frequency-Link DC Transformer Based on Switched Capacitor for Medium-Voltage DC Power Distribution Application
Biao Zhao;Qiang Song;Jianguo Li;Wenhua Liu;Guowei Liu;Yuming Zhao
Publication Year: 2016,Page(s):4766 - 4777
Cited by: Papers (137)
This paper proposes a practical solution of high-frequency-link dc transformer based on switched capacitor (SCDCT) for medium-voltage dc (MVDC) power distribution application. Compared to the traditional dc transformer scheme, the proposed SCDCT can disconnect from MVDC distribution grid effectively as a dc breaker when a short fault occurs in the distribution, can enhance power transfer capacity,...Show More
Review of Active Power Decoupling Topologies in Single-Phase Systems
Publication Year: 2016,Page(s):4778 - 4794
Cited by: Papers (374)
Active power decoupling methods are developed to deal with the inherent ripple power at twice the grid frequency in single-phase systems generally by adding active switches and energy storage units. They have obtained a wide range of applications, such as photovoltaic (PV) systems, light-emitting diodes (LEDs) drivers, fuel cell (FC) power systems, and electric vehicle (EV) battery chargers, etc. ...Show More
Review of Active Power Decoupling Topologies in Single-Phase Systems
Year: 2016 | Volume: 31 | Issue: 7
Isolated Swiss-Forward Three-Phase Rectifier With Resonant Reset
Marcelo Silva;Nico Hensgens;Jesús A. Oliver;Pedro Alou;Óscar García;José A. Cobos
Publication Year: 2016,Page(s):4795 - 4808
This paper presents a new isolated single-stage pulse-width modulation rectifier system based on the recently presented Swiss rectifier topology providing the isolation by replacing a buck with a forward converter. The principle of operation and a new modulation technique which compensates the reactive power generated by the input filter at light load and maximizes the power factor are discussed. ...Show More
Energy Efficiency Analysis of U-Coil Wireless Power Transfer System
Zhao-Hong Ye;Yue Sun;Xin Dai;Chun-Sen Tang;Zhi-Hui Wang;Yu-Gang Su
Publication Year: 2016,Page(s):4809 - 4817
Cited by: Papers (49)
In order to improve the power transfer efficiency and ensure the space cleanliness of power transfer direction in inductive coupled wireless power transfer (WPT) system, a new U-coil WPT system is proposed. Based on the mutual inductance coupling theory, a new methodology for ensuring that a U-coil system is more energy efficient than a two-coil counterpart is presented in this paper. The theoreti...Show More
Virtual Flux Sensorless Control for Shunt Active Power Filters With Quasi-Resonant Compensators
Publication Year: 2016,Page(s):4818 - 4830
This paper presents a sensorless control strategy for pulsewidth modulated active filters. The complete solution uses only two current sensors, which are located in the grid interface. The compensation is performed by the imposition of sinusoidal current references in the grid, and does not require algorithms for disturbance estimation. The virtual flux concept for grid synchronization and multipl...Show More
Control of Doubly-Fed Induction Generator to Ride-Through Recurring Grid Faults
Publication Year: 2016,Page(s):4831 - 4846
Cited by: Papers (18)
The wind turbine system (WTS) is required to ride-through recurring grid faults by the new grid codes. Under single grid faults, the fault ride-through (FRT) strategy with rotor-side crowbar is normally used for the doubly-fed induction generator (DFIG) WTS. However, under recurring faults, larger transient current and voltage may be produced, and the DFIG may fail to ride-through the second fault...Show More
Secondary-Side-Regulated Soft-Switching Full-Bridge Three-Port Converter Based on Bridgeless Boost Rectifier and Bidirectional Converter for Multiple Energy Interface
Publication Year: 2016,Page(s):4847 - 4860
Cited by: Papers (102)
A systematic method for deriving soft-switching three-port converters (TPCs), which can interface multiple energy, is proposed in this paper. Novel full-bridge (FB) TPCs featuring single-stage power conversion, reduced conduction loss, and low-voltage stress are derived. Two nonisolated bidirectional power ports and one isolated unidirectional load port are provided by integrating an interleaved b...Show More
An Energy Management Scheme With Power Limit Capability and an Adaptive Maximum Power Point Tracking for Small Standalone PMSG Wind Energy Systems
Publication Year: 2016,Page(s):4861 - 4875
Cited by: Papers (50)
Due to its high energy generation capability and minimal environmental impact, wind energy is an elegant solution to the growing global energy demand. However, frequent atmospheric changes make it difficult to effectively harness the energy in the wind because maximum power extraction occurs at a different operating point for each wind condition. This paper proposes a parameter-independent intelli...Show More
DC Microgrids—Part I: A Review of Control Strategies and Stabilization Techniques
Tomislav Dragičević;Xiaonan Lu;Juan C. Vasquez;Josep M. Guerrero
Publication Year: 2016,Page(s):4876 - 4891
Cited by: Papers (974)
This paper presents a review of control strategies, stability analysis, and stabilization techniques for dc microgrids (MGs). Overall control is systematically classified into local and coordinated control levels according to respective functionalities in each level. As opposed to local control, which relies only on local measurements, some line of communication between units needs to be made avai...Show More
Modeling, Modulation, and Control of the Three-Phase Four-Switch PWM Rectifier Under Balanced Voltage
Zhiyong Zeng;Weiyi Zheng;Rongxiang Zhao;Chong Zhu;Qingwei Yuan
Publication Year: 2016,Page(s):4892 - 4905
Cited by: Papers (69)
The modeling, modulation, and control of the three-phase four-switch (TPFS) PWM rectifier are investigated in this paper. Three space vector pulse width modulation methods using different equivalent zero vectors are developed, where sector identification and the trigonometric function are not required. Then, the high-frequency model for the current ripple analysis is proposed, and the effects of t...Show More
A Simple Hysteretic Energy Harvesting Method for Nonneutral AC Switches in Load Automation
Publication Year: 2016,Page(s):4906 - 4915
This paper presents a simple hysteretic method to obtain the energy required to operate the gate-drive, sensors, and other circuits within nonneutral ac switches intended for use in load automated buildings. The proposed method features a switch-mode low part-count self-powered mosfet ac switch that achieves efficiency and load current THD figures comparable to those of an externally gate-driven s...Show More
A MultiWinding Transformer Cell-to-Cell Active Equalization Method for Lithium-Ion Batteries With Reduced Number of Driving Circuits
Publication Year: 2016,Page(s):4916 - 4929
Cited by: Papers (135)
The bidirectional cell-to-cell equalization methods perform well to prevent the series-connected batteries from overcharging and undercharging. However, it remains a challenge to achieve fast equalization and high equalization efficiency with low complexity. To address the issue, we propose a new bidirectional cell-to-cell active equalization method using a multiwinding transformer. The new method...Show More
Ultrahigh Step-up DC–DC Converter for Distributed Generation by Three Degrees of Freedom (3DoF) Approach
Yihua Hu;Jiande Wu;Wenping Cao;Weidong Xiao;Peng Li;Stephen J. Finney;Yuan Li
Publication Year: 2016,Page(s):4930 - 4941
Cited by: Papers (35)
This paper proposes a novel dc-dc converter topology to achieve an ultrahigh step-up ratio while maintaining a high conversion efficiency. It adopts a three degree of freedom approach in the circuit design. It also demonstrates the flexibility of the proposed converter to combine with the features of modularity, electrical isolation, soft-switching, low voltage stress on switching devices, and is ...Show More
Analysis on Load-Adaptive Phase-Shift Control for High Efficiency Full-Bridge LLC Resonant Converter Under Light-Load Conditions
Jae-Hyun Kim;Chong-Eun Kim;Jae-Kuk Kim;Jae-Bum Lee;Gun-Woo Moon
Publication Year: 2016,Page(s):4942 - 4955
Cited by: Papers (120)
Recently, the full-bridge (FB) LLC resonant converter is getting more attention due to its zero-voltage switching of the primary switches, zero-current switching of rectifier diodes, and high power capability. However, the conversion efficiency is degraded under light-load conditions due to the core loss in magnetic components and the switching loss in semiconductor devices. In this paper, a new c...Show More
On Automatic Resonant Frequency Tracking in LLC Series Resonant Converter Based on Zero-Current Duration Time of Secondary Diode
Publication Year: 2016,Page(s):4956 - 4962
In order to achieve higher efficiency for the unregulated LLC series resonant converter, the switching frequency must be equal to the resonant frequency. However, since the converter works in open-loop condition, the switching frequency usually deviates from the resonant frequency in real converter. This paper proposed a new control method to track the resonant frequency of the unregulated LLC ser...Show More
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