中国电源学会电子资源平台

关键词

quasi-Z-source

(10)
integrated charger

(10)
voltage sags/swells

(10)
PV-UPQC

(10)
Adaptive JAYA Optimization

(10)
neutral-point voltage balance

(10)
Multilevel inverter

(10)
current control

(10)
PWM Converter

(10)
LLC resonant converter

(10)
phase shift

(10)
parameter identification

(10)
current harmonics

(10)
switching loss

(10)
single-phase rectifier

(10)
PI controller

(10)
digital control

(10)
three-phase four-wire

(10)
three-level NPC converters

(10)
Neutral-point control margin

(10)

作者

Chen Chen

(10)
Bharatiraja Chokkalingam

(10)
Atif Iqbal

(10)
Ali I. Maswood

(10)
Abdul Azeem

(10)
Mohammad Meraj

(10)
Mohd Tariq

(10)
Jochen von Bloh

(10)
Sebastian A. Richter

(10)
Jinxin Wang

(10)
Jiaqi Tang

(10)
Qianfan Zhang

(10)
Tuopu Na

(10)
Pravat Kumar Ray

(10)
Santanu Kumar Dash

(10)
Hongliang Xin

(10)
Xiahe Si

(10)
Zhitong Li

(10)
Chenchen Wang

(10)
Huang-Jen Chiu

(10)

获取方式

会员

(10)
付费

(10)
限免

(10)

当前 1 - 10 , 共 10 条记录

排序

Methodology for Analysis and Design of Discrete Time Current Controllers for Three-Phase PWM Converters 会员

期刊论文

作者： Sebastian A. Richter , Jochen von Bloh

页码： 254 - 264

摘要

2018/01/01

6

0

0

0

In this work, a methodology for the analysis and design of robust, high bandwidth current controllers for three phase converters is presented. The overall goal is to demonstrate how the proposed model based control structure and the design methodology lead to an optimized digital current controller that exhibits fast and smooth dynamics as well as an excellent disturbance rejection ability. First, accurate discrete time models are derived and used to review classical current control from the perspective of the synchronous and stationary reference frame. Then, implementation options for the synchronous frame proportional integral (SFPI) regulator and the proportional resonant(PR) regulator are discussed and systematically compared in the stationary frame leading to the formulation of a general controller framework based on space vector resonators. It embodies multiple complex resonators and can represent the SFPI regulator, the PR regulator and beyond that any higher order regulator structure. For this framework, a step by step design procedure based on the complex root locus is proposed that allows an insightful optimization of its feedback gains. Finally, the performance of the presented control design techniques is evaluated experimentally.
查看更多
Power Quality Improvement Utilizing PV Fed Unified Power Quality Conditioner Based on UV-PI and PR-R Controller 会员

期刊论文

作者： Santanu Kumar Dash , Pravat Kumar Ray

页码： 243 - 253

摘要

2018/01/01

6

0

0

0

This paper presents control and configuration of photovoltaic fed unified power quality conditioner for the purpose of power quality enhancement. Literature studies convey that fixed PI gains used in the control schemes of Unified Power Quality Conditioners(UPQC) and PV-UPQC cannot easily adapt to vari-ous dynamic conditions. In this paper a novel online tunings method for PI control gains is adopted in the controllers of series and shunt converters of PV-UPQC. Unlike the previously implemented JAYA algorithm which has a single objective function utilized in the controller of DSTATCOM for improvement of only current quality, the new adaptive JAYA algorithm has two separate objective function, employed in shunt and series inverter control of PV-UPQC system for improvement of both current and voltage quality under various operational scenarios for power quality is-sues. The experimental results verify that implementation of JAYA based auto tuning PI controller increases the adaptivity of PV-UP-QC system towards various dynamic conditions. Results obtained are compared with conventional optimization algorithms with fixed PI gains pertaining to a distribution system for validating its efficacy.

查看更多
Evaluation of Level-Shifted and Phase-Shifted PWM Schemes for Seven Level Single-Phase Packed U Cell Inverter 会员

期刊论文

作者： Mohd Tariq , Mohammad Meraj , Abdul Azeem , Ali I. Maswood , Atif Iqbal , Bharatiraja Chokkalingam

页码： 232 - 242

摘要

2018/01/01

6

0

0

0

An evaluation of level shifted and phase shifted triangular and sawtooth carrier modulation schemes for a seven level packed U cell(PUC) inverter is presented in this paper. The investigated PUC is the recently introduced topology for multilevel inverter having reduced switch count in comparison to the conventional topologies of multilevel inverters. The PUC inverter has six switches for 7 level inverter which is very less in comparison to the conventional topologies. In this paper, the level-shifted pulse width modulation(LS-PWM) and phase-shifted PWM(PS-PWM) for triangular and sawtooth carrier are presented and compared. A comparative harmonic analysis for all the cases is performed and results are presented in the paper. The difference in harmonics of the two modulation methods given by the theoretical approach for both the carrier is validated by the experimental results. DC voltage controller and load current controller of the PUC inverter are also designed and presented. The investigated PUC topology is tested in dynamic and steady state conditions and results obtained are presented. The analysis is done and validated using simulation in MATLAB® Simulink environment and experimental approaches using FPGA platform.
查看更多
Three Phase Trans-Quasi-Z-Source Inverter 会员

期刊论文

作者： Xupeng Fang , Bolong Ma , Guanzhong Gao , Lixin Gao

页码： 223 - 230

摘要

2018/01/01

6

0

0

0

In this paper, a new type of single-stage boost Trans-quasi-Z-source inverter topology is presented. The basic structure and working principle of the inverter are analyzed and its voltage gain is deduced. The model of the Trans-quasi-Z-source network is established by using Laplace transform. The dynamic characteristics of the system are analyzed, and the switching loss is explored by comparing the different shoot-through injection methods. In order to verify the dynamic boost characteristics, the Matlab/Simulink simulation is performed. Finally, the hardware circuit is built on the basis of theoretical analysis and simulation verification. The experimental results verify the feasibility and stability of the circuit.
查看更多
Control of Neutral-Point Voltage in Three-Phase Four-Wire Three-Level NPC Inverter Based on the Disassembly of Zero Level 会员

期刊论文

作者： Chenchen Wang , Zhitong Li , Xiahe Si , Hongliang Xin

页码： 213 - 222

摘要

2018/01/01

5

0

0

0

It is important to maintain the neutral-point(NP) voltage balanced for the three-phase four-wire three-level neutral-point clamped(NPC) inverter. In this paper, after detailed discussion, a mathematical model of the neutral-point voltage are derived. Then a novel control strategy is proposed based on the disassembly of zero level(O Level) to maintain the neutral-point potential. A variable named neutral-point control margin(NPCM) is defined to represent the disassembly margin of each phase. The zero level of one of the three phase is disassembled quantitatively after calculation. Furthermore, the neutral-point voltage can keep balanced while the average output voltage remains unchanged. The proposed control strategy is verified by simulation and experiments.
查看更多
Adaptive Charging Strategy With Temperature Rise Mitigation and Cycle Life Extension for Li-ion Batteries 会员

期刊论文

作者： Shun-Chung Wang , Guan-Jhu Chen , Yi-Hua Liu

页码： 202 - 213

摘要

2018/01/01

6

0

0

0

Charging battery with a large C-rate current to shorten the charging time(CT) will induce the drastic electro-chemical reaction, and thus bring about the significant temperature rise(TR), energy loss, performance degradation, and safety concern as well. To tackle this problem, an adaptive charging strategy with TR mitigation and cycle life extension is proposed in this study. Based on the relationship between the charging current and remaining state of charge(RSOC) which is extracted experimentally, a baseline charging current is determined first. To control the temperature rise further, a fuzzy TR controller(FTC) is devised to fine-tune the charging current according to the temperature gradient. Thus an adaptive charging current with temperature rise suppression mechanism can be generated dynamically in the entire charging process. The proposed charging strategy is validated by means of experimental studies and compared with the conventional constant current-constant voltage(CC-CV) method. The results show that the average temperature rise, charging efficiency, and estimated cycle life have 31.24%, 2.06%, and 57.3% of improvement respectively as compared with that of the conventional CC-CV obtained.
查看更多
Active Power Filter for Single-Phase Quasi-Z-Source Integrated On-Board Charger 会员

期刊论文

作者： Tuopu Na , Qianfan Zhang , Jiaqi Tang , Jinxin Wang

页码： 197 - 201

摘要

2018/01/01

5

0

0

0

Single-phase quasi-Z-source rectifiers have second harmonic currents and corresponding ripple voltages on the dc bus. To filer the voltage ripple, bulky capacitor bank is needed. This paper proposed an active power filter(APF) for single-phase quasi-Z-source rectifier. It eliminated the second harmonic power with small capacitor and inductor. This topology is suitable to integrated electric vehicle(EV) on-board charger, which can use EV’s inverter hardware as its own rectifier hardware. Thus, this proposed topology can save much space and weight. Simulation and experimental results verified the proposed system.
查看更多
Adaptive DC-Link Voltage Control of LLC Resonant Converter 会员

期刊论文

作者： Li-Chung Shih , Yi-Feng Luo

页码： 187 - 197

摘要

2018/01/01

8

0

0

0

In this study, an adaptive DC-link voltage control of a two-stage switching power supply with LLC resonant converter is proposed. With this control method, the frequency variation range can be reduced and the conversion efficiency under different load conditions can be improved compared with the conventional variable frequency control technique. By operating the LLC resonant converter near its resonant frequency, circulating loss as well as the conduction loss can be reduced and optimal design of LLC resonant converter can be made possible. Moreover, no additional auxiliary circuits are required for the proposed method. The operational principle of the proposed control scheme is verified with a 350 W prototyping circuit. The switching-frequency-variation range is reduced from 12 to 4 kHz and the efficiency is improved from 89.4% to 90.2% at full load.
查看更多
Parameter Identification of Capacitive Power Transfer System Based on Spectrum Analysis 会员

期刊论文

作者： Chen Chen , Chenhui Li

页码： 181 - 186

摘要

2018/01/01

5

0

0

0

Capacitive power transfer(CPT) technology is a newly emerging research focus for EV charging applications. Due to the absence of eddy current loss and light weight of the capacitive coupling metal plates, CPT technology is considered to be a promising alternative to the inductive power transfer(IPT) technology. However, the parameter identification of the CPT system has not been well studied. In this paper, a multi-parameter identification method based on spectral information is proposed, which based on rational fractional fitting algorithm and network synthesis theory. By adding some known parameters to this method, the parameter identification algorithm under constraint is proposed to improve the noise tolerance of the identification results, and at the same time, it can also have better identification accuracy. The experimental results show that the parameter identification algorithm based on spectrum information can effectively identify the parameters of the circuit model of the CPT system, and the identification accuracy is less than 10%.
查看更多
Editorial for the Special Issue on Vehicle Electrification 会员

期刊论文

作者： Chris Mi , Huang-Jen Chiu

页码： 179 - 180

摘要

2018/01/01

7

0

0

0

ELECTRIC, hybrid and fuel cell vehicles have attracted significant attention in the past decades due to the exhaustion of fossil fuel consumption and their environmental concerns. Electric vehicles use electronic subsystems—in comparison to conventional vehicles, which include electric machines, power electronics, electronic continuously variable transmissions (CVT), onboard chargers, and embedded powertrain controllers. Advanced energy storage systems, such as Li-ion batteries, ultra-capacitors, and fuel cells, together with intelligent energy management algorithms, are introduced in the next generation powertrains. In addition to these electrification components or subsystems, conventional internal combustion engines(ICE), mechanical and hydraulic systems may still present. As a result, the complexity of new powertrain designs and dependence on embedded software is a cause of concern to automotive research and development efforts. This leads to an increasing difficulty in predicting interactions among various vehicle components and systems.Therefore, the design and implementation of the mechanical and electrical components need to be considered carefully. In order to understand the difficulty and prospected challenge of the vehicle electrification, this Special Issue is a review of the state-of-art contributions and new discoveries in the field of power electronics and applications for the electric vehicle.
查看更多

Vol.3 No.3 2018