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2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)最新文献

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A New Cubic Transformerless Converter For Applying in Renewable Applications 一种用于可再生能源的新型三次无变压器变换器
Pub Date : 2022-02-01 DOI: 10.1109/pedstc53976.2022.9767499
Saeed Mahdizadeh, M. Alhashem, H. Kargar
A new non-isolated cubic converter has been suggested for applying in renewable systems due to the high voltage gain and continuous input current. Moreover, the low stress on the semiconductors is an other benefit which decreases the losses. The base of the topology is a combination of two Boost converters and a Buck-Boost converter which two capacitors are series in the output terminal. The mathematical calculations have been done in CCM. Two comparisons have been done which are for non-ideal voltage gain and the structural features of the proposed converter and some new suggested converters. The maximum voltage gain has been achieved to 22 for the 160 W output power and 50 percent duty cycle. The simulation results have been obtained by PLECS and illustrated.
由于具有高电压增益和连续输入电流的特点,提出了一种新的非隔离立方变换器应用于可再生能源系统。此外,半导体上的低应力是减少损耗的另一个好处。该拓扑的基础是两个Boost转换器和一个Buck-Boost转换器的组合,其中两个电容器串联在输出端。在CCM中进行了数学计算。本文还对该变换器的非理想电压增益和结构特性进行了比较,并对几种新型变换器进行了比较。在160 W输出功率和50%占空比下,最大电压增益达到22。仿真结果已在PLECS上得到并进行了说明。
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引用次数: 1
PMSG-Based Stand-alone Wind Energy Conversion System Using Quasi Y-Source Inverter and Battery Storage 基于pmsg的准y源逆变器和蓄电池储能单机风能转换系统
Pub Date : 2022-02-01 DOI: 10.1109/pedstc53976.2022.9767305
A. Rajaei, Sajjad Yazdani, Ehsan Ebadi
In this paper, a boosting interface configuration for a wind energy conversion system (WECS) based on permanent magnet synchronous generator (PMSG) and quasi-y-source inverter is presented and analyzed for standalone operation. The interface system includes a battery storage system to provide instantaneous energy balance. The WECS comprises wind turbine, PMSG, three phase diode rectifier, quasi-y-source inverter, synchronous bidirectional buck dc-dc converter and a battery storage system. This inverter inherits all advantages of impedance network based inverters. In addition, this topology draws continuous current from the source which is required for many renewable sources. It also has dc-current-blocking capacitors, which avoids saturation in the transformer core. The operation principles and required relations are derived and described. Simulations are performed in two scenarios, with constant and varying input torque to verify the proposed system. The results show good consistency with theoretical analysis.
提出了一种基于永磁同步发电机(PMSG)和准y源逆变器的风能转换系统升压接口结构,并对其单机运行进行了分析。接口系统包括提供瞬时能量平衡的电池存储系统。WECS包括风力发电机、PMSG、三相二极管整流器、准y源逆变器、同步双向降压dc-dc变换器和电池存储系统。该逆变器继承了阻抗网络逆变器的所有优点。此外,这种拓扑结构从电源中提取连续电流,这是许多可再生能源所需要的。它也有直流阻塞电容器,这避免了饱和在变压器铁心。推导并描述了操作原理和所需的关系。在恒定和变化输入转矩两种情况下进行了仿真,以验证所提出的系统。计算结果与理论分析吻合较好。
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引用次数: 1
Induction Balance Metal Detector Using Multi-Level Chirp Signal 感应平衡金属探测器采用多级啁啾信号
Pub Date : 2022-02-01 DOI: 10.1109/pedstc53976.2022.9767474
E. Najafi, S. Hasanzadeh, Kourosh Kheradmandan
Detecting metals beneath the ground as well as recognizing their material was always a big challenge, especially for mine detection applications. This paper presents the capabilities of a novel induction balance metal detector that uses a multilevel chirp (MLC) signal and compares this new concept with the existing technologies. This method applies a chirp signal to a multilevel inverter as a transmitter. The search head receives the resulting waveform and detects the metal. This method is suitable for detecting metal substances such as military mines in short depths beneath the ground. The proposed approach is simulated in COMSOL and MATLAB software environment and is compared with the simulation and experimental results of the existing metal detector methods. The results show that 17% is increased in the detection depth compared to available methods with the proposed method. The method is also capable of discrimination between different materials.
探测地下金属并识别其材料一直是一个巨大的挑战,特别是对于地雷探测应用。本文介绍了一种采用多电平啁啾(MLC)信号的新型感应平衡金属探测器的性能,并将这种新概念与现有技术进行了比较。该方法将啁啾信号作为发射器应用于多电平逆变器。搜索头接收产生的波形并检测金属。该方法适用于探测地下较浅深度的军用地雷等金属物质。在COMSOL和MATLAB软件环境下对该方法进行了仿真,并与现有金属探测器方法的仿真和实验结果进行了比较。结果表明,与现有方法相比,该方法的检测深度提高了17%。该方法还能够区分不同的材料。
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引用次数: 0
A High Voltage Gain Boost Converter with the Reduced Number of Switches Using the developed Switched Inductor and Capacitor Structure 采用所开发的开关电感和开关电容结构的高电压增益升压变换器
Pub Date : 2022-02-01 DOI: 10.1109/PEDSTC53976.2022.9767490
Mohammad Hamidi, M. Hamzeh, Morteza Naderlooei, Mohsen Zargarzadeh, E. Afjei
This paper proposes a new boost converter topology to address the compatibility problem with a high voltage gain compared to the conventional boost circuit, which is highly proper for renewable energy resources and DC applications. In contrast to similar boost converter configurations, the proposed topology has fewer semiconductor components. Furthermore, the output stage is removed, as the switched inductor is developed by replacing two diodes with two capacitors. Moreover, the symmetrical circuit makes design and analyses less complicated. The operation modes and the steady-state analysis are accomplished in the current conduction mode. The converter simulation is carried out with MATLAB Simulink and Script so as to obtain the typical waveforms of the DC-DC converter.
本文提出了一种新的升压变换器拓扑结构,以解决与传统升压电路相比具有高电压增益的兼容性问题,该拓扑结构非常适合可再生能源和直流应用。与类似的升压变换器配置相比,所提出的拓扑结构具有更少的半导体元件。此外,输出级被移除,因为开关电感是通过用两个电容器替换两个二极管来开发的。此外,对称电路使设计和分析更简单。在电流传导模式下完成了工作模式和稳态分析。利用MATLAB Simulink和Script对变换器进行仿真,得到了DC-DC变换器的典型波形。
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引用次数: 2
Developed Hybrid Quasi Z-Source Inverter Based on Capacitor and Diode Cells: Analysis and Implementation 基于电容和二极管电池的混合准z源逆变器:分析与实现
Pub Date : 2022-02-01 DOI: 10.1109/pedstc53976.2022.9767221
S. Laali, Ali Mobtaker Sarayi
In this paper, a new developed quasi Z-source inverter is proposed. This new topology is based on a new hybrid-cell which is combined of a diode cell and a capacitor cell. The proposed inverter is called discontinuous diode capacitor assisted quasi Z-source inverter (DDCAQZSI). This inverter is analyzed in three modes: two-cell QZSI, three-cell QZSI and n-cell QZSI. In all above mentioned topologies the structure is completely analyzed and the equations of the boost factor, diodes and capacitors voltage stresses, input dc link and inductor’s current are calculated. According to the obtained results, the boost factor of the proposed inverter is increased by increasing the number of used proposed basic units. Then, the accuracy performance of the proposed topology and its obtained equations are verified by the simulation results. The simulation results done in EMTDC/PSCAD software program and on the two-cell DDCAQZSI.
本文提出了一种新型准z源逆变器。这种新的拓扑结构是基于一种新的混合电池,它是一个二极管电池和一个电容器电池的组合。所提出的逆变器称为不连续二极管电容辅助准z源逆变器(DDCAQZSI)。分析了该逆变器的三种模式:双单元QZSI、三单元QZSI和n单元QZSI。在上述拓扑结构中,对其结构进行了全面的分析,并计算了升压因数、二极管和电容的电压应力、输入直流链路和电感电流的方程。根据所得结果,通过增加所提出的基本单元的使用数量,可以提高逆变器的升压因数。然后,通过仿真结果验证了所提拓扑及其得到的方程的精度性能。仿真结果在EMTDC/PSCAD软件和双单元DDCAQZSI上完成。
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引用次数: 0
Fast Open-circuit Fault Detection Method for Defective Switches in Nested Neutral Point Clamped (NNPC) Converter 嵌套中性点箝位(NNPC)变换器缺陷开关开路故障快速检测方法
Pub Date : 2022-02-01 DOI: 10.1109/pedstc53976.2022.9767307
Vahid Barahouei, S. Masoud Barakati, M. Rahmani Haredasht, M. Bagheri Hashkavayi
Recently, the nested neutral point clamped (NNPC) converter has been developed for medium voltage applications. This converter has been considered for its desirable properties, such as application in a wide range of voltages, the low voltage stress on the switches, and excellent output waveform quality. This study presents a fast open-circuit fault detection method in semiconductor switches. The proposed method only requires the measurement of output voltage. The output voltage of the converter is investigated in different switching states. If there is a discrepancy in the converter output in normal mode and after the fault, the defective switch is identifiable. The proposed method has been investigated in the MATLAB Simulink environment under different scenarios. The simulation results confirm the desired performance of the proposed method.
近年来,中压型嵌套中性点箝位(NNPC)变换器得到了广泛的应用。该变换器具有适用电压范围广、开关电压应力小、输出波形质量好等优点。提出了一种半导体开关开路故障快速检测方法。所提出的方法只需要测量输出电压。研究了变换器在不同开关状态下的输出电压。如果在正常模式下和故障发生后,转换器输出存在差异,则可以识别出有缺陷的开关。在MATLAB Simulink环境中对该方法进行了不同场景下的实验研究。仿真结果验证了所提方法的预期性能。
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引用次数: 3
A SOSM Control for Induction Motor Using ANN-based Sensorless Speed and Flux Estimation under Parametric Uncertainty in FOC Control Method 在参数不确定条件下,基于人工神经网络的无传感器转速和磁链估计的异步电机SOSM控制
Pub Date : 2022-02-01 DOI: 10.1109/pedstc53976.2022.9767386
Ramin Nahavandi, M. Asadi, A. Torkashvand
In this paper, a second order-sliding mode (SOSM) control strategy for Field Oriented Control (FOC) of induction motor (IM) is proposed that satisfying requirements of reliable dynamics and steady state performance. The proposed control structure is a state of the development of FOC utilized SOSM in the inner loop that employ the artificial neural network (ANN) to estimate the rotor flux and motor speed. The SOSM controller designed based on model of induction motor (IM) that include torque control loop (inners loop) and speed tracking control (outer loop). Based on the sliding state convergence property, the state variables track the reference values. By analyzing the theory, the desired performance of the proposed control system proven for various situations. The proposed control considerably ameliorates specified disadvantages of the FOC and DTC, such as the sensitivity to motor parameter variations. The simulation results indicate the correctness of the control algorithm under the uncertainty in parameters and load variations. Keywords, (FOC, ANN’s, Uncertainty, estimation, SOSM, Robust)
针对感应电机的场定向控制(FOC),提出了一种二阶滑模(SOSM)控制策略,该策略能满足感应电机可靠的动力学和稳态性能要求。所提出的控制结构是一种利用SOSM内环,利用人工神经网络(ANN)估计转子磁链和电机转速的FOC发展状态。基于异步电动机模型设计了SOSM控制器,该控制器包括转矩控制回路(内环)和速度跟踪控制回路(外环)。基于滑动状态收敛性,状态变量跟踪参考值。通过理论分析,证明了所提出的控制系统在各种情况下的理想性能。所提出的控制大大改善了FOC和DTC的特定缺点,例如对电机参数变化的敏感性。仿真结果表明,在参数和负荷变化不确定的情况下,控制算法是正确的。关键词:FOC, ANN,不确定性,估计,SOSM,鲁棒性
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引用次数: 1
Torque Ripple Minimization for a Switch Reluctance Motor Using the Ant Lion Optimization Algorithm 基于蚂蚁狮子优化算法的开关磁阻电机转矩脉动最小化
Pub Date : 2022-02-01 DOI: 10.1109/pedstc53976.2022.9767476
Tohid Sharifi, Vahid Mirzaei Khales, M. Mirsalim
High torque density is a significant criterion for electric vehicle applications. In the context of torque performance, firstly, the average torque of the motor should be improved, and, secondly, the torque ripple of the machine must be at a satisfactory level. Switch reluctance motors (SRMs), as an alternative, pass the first criterion. However, the torque ripple of the SRMs can be problematic for the users. Various methods have been used for torque ripple minimization, and most of them are related to structural techniques. However, these methods cannot be considered as the optimal ones. In this article, a 3-phase switch reluctance motor with 18 stator poles and 12 rotor poles (18/12) has been introduced, designed to be used in electric vehicles. The torque ripple of the motor is optimized using the Ant Lion Optimization (ALO) algorithm, which is a metaheuristic approach, and the result of the optimization problem is compared with the initial machine. The mathematical basics of the algorithm and performance parameters, such as the convergence speed, are discussed and compared with other optimization algorithms to declare the advantages and disadvantages. Lastly, the electromagnetic analyses of the proposed motor are performed using 2-D finite-element analysis.
高扭矩密度是电动汽车应用的一个重要标准。在转矩性能方面,首先要提高电机的平均转矩,其次要使机器的转矩脉动达到令人满意的水平。作为替代方案,开关磁阻电机(SRMs)通过了第一个标准。然而,srm的转矩脉动可能会给用户带来问题。减小转矩脉动的方法多种多样,但大多与结构技术有关。然而,这些方法不能被认为是最优的。本文介绍了一种具有18个定子极和12个转子极(18/12)的三相开关磁阻电机,设计用于电动汽车。采用蚁狮优化算法(ALO)对电机的转矩脉动进行优化,并将优化结果与初始机进行比较。讨论了算法的数学基础和收敛速度等性能参数,并与其他优化算法进行了比较,说明了算法的优缺点。最后,采用二维有限元方法对所提出的电机进行了电磁分析。
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引用次数: 0
A Transformerless Switched-Capacitor Converter Applicable for Photovoltaic Systems 一种适用于光伏系统的无变压器开关电容器变换器
Pub Date : 2022-02-01 DOI: 10.1109/pedstc53976.2022.9767351
S. Hasani, R. Beiranvand
A transformerless multi-input soft-switched high step-up switched-capacitor converter (SCC) suitable for high-power and high-voltage applications is going to be introduced in the present research. Zero voltage switching (ZVS) operation is provided for all power MOSFETs and diodes of the proposed topology by using active clamp circuits. Soft switching operation eliminates or significantly reduces the loss of switching so that high values of efficiency could be obtained. Moreover, the switching frequency could be highly increased as a result of soft switching operation. High switching frequency brings about high power density and passive components size reduction. Furthermore, Cockcroft-Walton voltage multiplier (CW-VM) units are employed to reach high values of voltage conversion ratio without applying high voltage stresses on the components. To approve the proper function of the proposed converter, a three phase prototype having three cell voltage multiplier (VM) units, 40 V input voltages, 925 W output power and 385 V output voltage is simulated at 150 kHz switching frequency.
本文介绍了一种适用于大功率高压应用的无变压器多输入软开关高升压开关电容器变换器。零电压开关(ZVS)操作提供了所有功率mosfet和二极管提出的拓扑通过使用有源箝位电路。软开关操作消除或显著降低了开关的损耗,从而获得较高的效率值。此外,由于软开关操作,可以大大提高开关频率。高开关频率带来高功率密度和减小无源器件尺寸。此外,采用Cockcroft-Walton电压乘法器(CW-VM)单元,在不施加高电压应力的情况下达到高电压转换率。为了验证所提出的转换器的正确功能,在150 kHz开关频率下,对具有三个单元电压乘法器(VM)单元,输入电压为40 V,输出功率为925 W,输出电压为385 V的三相原型进行了仿真。
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引用次数: 1
Standardized Evenhanded Vector Selection Technique Used in Model Predictive Torque and Flux Controller 模型预测转矩和磁链控制器中的标准化均匀向量选择技术
Pub Date : 2022-02-01 DOI: 10.1109/PEDSTC53976.2022.9767350
S. Davari, M. Ghiasvand, C. Garcia, José Raúl Rodríguez Rodríguez
Although Model Predictive Torque Control (MPTC) method is considerably noticed during recent decades in literature due to its ability to direct control of several criteria (such as torque and flux), it couldn’t find a remarkable role in industrial applications yet. The main challenge is vector selection when the focus on promoting one criterion will cause to lose the others. To solve the conflict, many different methods have been introduced such as applying online weighting factors, ranking methods, sequential methods which all have pros and cons. The proposed method has been designed to select the best vector by considering both criteria (Torque and Flux) impartially. Comparing the results shows, by applying the method, torque ripples are decreased while the other features remain unchanged.
尽管模型预测转矩控制(MPTC)方法在近几十年的文献中得到了相当大的关注,因为它能够直接控制几个标准(如转矩和磁通),但它在工业应用中还没有找到显着的作用。主要的挑战是矢量选择,当专注于促进一个标准时将导致失去其他标准。为了解决冲突,引入了许多不同的方法,如应用在线加权因子,排序方法,顺序方法,这些方法都有优缺点。所提出的方法旨在通过公正地考虑两个标准(扭矩和通量)来选择最佳向量。结果表明,采用该方法后,转矩脉动减小,其他特性保持不变。
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引用次数: 0
期刊
2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)
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