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

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A SiC-Based Hybrid PFC-Inverter for On-board EV Chargers 基于sic的混合pfc逆变器用于车载EV充电器
Pub Date : 2022-02-01 DOI: 10.1109/pedstc53976.2022.9767296
Amir Hossein Dabbagh, Hamed Arvani, H. Gholizadeh, E. Afjei
Extensive research on electric vehicles (EVs) has been made as the popularity has been increasing in recent years. Many studies show the advantages and necessities of the bidirectional on-board chargers (OBCs) implantation in EVs. One of the essential parts of an EV’s OBC is power factor correction (PFC) converter. Nowadays, boost types PFCs have been widely used. The main problem with these converters is that they cannot provide a wide output voltage range. This work presents a hybrid PFC-Inverter for bidirectional EVs charging applications. MATLAB/Simulink is used to validate the proposed converter, and simulations are performed from 10% of the rated power to full load in PFC and inverter operation modes separately. The obtained results indicate a unity power factor (PF) and a total harmonic distortion (THD) of the input current at 3.65% in charging mode and a THD of the output current at 2.18% in discharging mode at rated power and voltages that agrees with standards.
近年来,随着电动汽车的日益普及,人们对电动汽车进行了广泛的研究。大量的研究表明,在电动汽车上植入双向车载充电器的优点和必要性。功率因数校正(PFC)转换器是电动汽车OBC的重要组成部分之一。目前,升压型pfc得到了广泛的应用。这些转换器的主要问题是它们不能提供宽的输出电压范围。本文提出了一种用于电动汽车双向充电的混合pfc -逆变器。利用MATLAB/Simulink对所提出的变换器进行了验证,并在PFC和逆变器两种工作模式下分别从10%额定功率到满负荷进行了仿真。结果表明,在额定功率和电压下,充电模式下输入电流的功率因数和总谐波失真(THD)为3.65%,放电模式下输出电流的总谐波失真(THD)为2.18%,符合标准。
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引用次数: 1
A Data-driven PI Control of Grid-Connected Voltage Source Inverters Interfaced with LCL Filter 带LCL滤波器的并网电压源逆变器的数据驱动PI控制
Pub Date : 2022-02-01 DOI: 10.1109/pedstc53976.2022.9767371
Kamran Moradi, Hêmin Sheikhahmadi, Pourya Zamani, Q. Shafiee, H. Bevrani
The complexity of microgrid (MG) control has been a point of contention when implementing an appropriate controller due to factors such as grid distortion, external disturbances, uncertainties, and the inaccessibility of these applications to an exact model. To address this, designers must either reduce the sensitivity and accuracy of control objectives to an acceptable level, which is not always possible, or use more computationally complex controllers. The proportional-integral (PI) controller is the most popular in practice due to its simple and straightforward structure. Numerous algorithms have been presented to well-tune the parameters of this type of controller. The primary difficulty in determining the PI controller coefficients is extracting an accurate model of the studied system. As a result, recent consideration has been given to control methods based on system input/output data measurements. This paper proposes a data-driven method for tuning PI controller coefficients referred to as iterative feedback tuning (IFT) to control the inverter-side current of a three-phase grid-connected voltage source inverter (VSI) under grid distortion and various grid frequency conditions. Simulation results are provided to validate the proposed method.
由于网格畸变、外部干扰、不确定性以及这些应用程序对精确模型的不可访问性等因素,在实现适当的控制器时,微电网(MG)控制的复杂性一直是争论的焦点。为了解决这个问题,设计师必须将控制目标的灵敏度和精度降低到可接受的水平,这并不总是可能的,或者使用更多计算复杂的控制器。比例积分(PI)控制器因其结构简单明了而在实践中最受欢迎。已经提出了许多算法来很好地调整这类控制器的参数。确定PI控制器系数的主要困难是提取所研究系统的精确模型。因此,最近考虑了基于系统输入/输出数据测量的控制方法。本文提出了一种数据驱动的PI控制器系数的迭代反馈调谐(IFT)方法,以控制三相并网电压源逆变器(VSI)在电网畸变和各种电网频率条件下的逆变器侧电流。仿真结果验证了该方法的有效性。
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引用次数: 0
A Cubic Transformer-less DC-DC Converter with Continuous Input Current: Mathematical model, Simulation, and Experimental 具有连续输入电流的三次无变压器DC-DC变换器:数学模型、仿真和实验
Pub Date : 2022-02-01 DOI: 10.1109/PEDSTC53976.2022.9767440
M. Monfared, H. Gholizadeh, Seyyed Mohammad Kalamialhashem, S. Amini, Seyyed Amir Ata Afjei, S. Ebrahim Afjei
In this paper, a novel design of the DC-DC converters has been introduced. The voltage gain has achieved high values by the lower value of the duty cycle. Besides the Cubic form of the voltage gain, the normalized value of the current stress of the switch diodes has been low. In addition, continuous input current ripple has decreased the current stress of the input filter capacitor as well as its capacitance value. The proposed converter has been designed for the continuous current mode. Moreover, the converter has been discussed in both continuous/discontinuous current modes. Furthermore, the advantages and bold points of the converter have been expressed in the ideal mode. Finally, the simulation results besides the experimental outcomes have been presented and compared. In addition, the prototype has been designed for 80 W output power.
本文介绍了一种新型DC-DC变换器的设计。电压增益通过较低的占空比达到较高的值。除了电压增益的三次形式外,开关二极管电流应力的归一化值也很低。此外,连续输入电流纹波降低了输入滤波电容的电流应力,降低了其电容值。所提出的变换器是针对连续电流模式设计的。此外,还讨论了该变换器在连续/不连续电流模式下的工作情况。并以理想模式表达了该变换器的优点和缺点。最后给出了仿真结果和实验结果的对比。此外,原型机已设计为80 W输出功率。
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引用次数: 0
An Asymmetrical T-Type Boost Multilevel Inverter Topology 非对称t型升压多电平逆变器拓扑
Pub Date : 2022-02-01 DOI: 10.1109/pedstc53976.2022.9767241
Kavian Kamalinejad, H. Iman‐Eini
Single-stage DC-AC power conversion is investigated due to high efficiency and a more straightforward structure than the two-stage equivalent system, where a boost DC-DC converter is needed. Moreover, multilevel inverters offer various advantages in terms of output voltage quality, electromagnetic interference, etc. Therefore, boost multilevel inverters can be used in many applications like renewable energy sources, electric vehicles, and battery applications. In this paper, a new boost multilevel inverter topology, in which boost ratio and the number of output voltage levels can increase to any number, is proposed. The asymmetrical voltage of capacitors in the proposed topology creates more voltage levels without increasing the number of components. In addition, capacitor voltages are automatically balanced and no extra voltage sensors or auxiliary supplies are required.
由于单级DC-AC功率转换效率高,并且比需要升压DC-DC转换器的两级等效系统结构更简单,因此研究了单级DC-AC功率转换。此外,多电平逆变器在输出电压质量、电磁干扰等方面具有各种优势。因此,升压多电平逆变器可用于许多应用,如可再生能源,电动汽车和电池应用。本文提出了一种新的升压多电平逆变器拓扑结构,该拓扑结构的升压比和输出电压电平可以任意增加。在所提出的拓扑结构中,电容器的不对称电压产生了更多的电压水平,而不增加元件的数量。此外,电容器电压自动平衡,不需要额外的电压传感器或辅助电源。
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引用次数: 0
A Single-DC-Source Boost Multilevel Inverter for Dynamic Voltage Restorer Application 用于动态电压恢复的单直流源升压多电平逆变器
Pub Date : 2022-02-01 DOI: 10.1109/pedstc53976.2022.9767399
M. Farhadi‐Kangarlu, Y. Neyshabouri
Multilevel inverters are used in various applications because of their intrinsic merits. One of the common applications of the multilevel inverters is the power quality (PQ) improvement devices such as the dynamic voltage restorer (DVR). An important in the DVR is how to obtain the DC source required by the inverter used in DVR. As providing the DC voltage source is challenging and costly, the number of required independent DC sources should be minimized. However, most of the multilevel inverters require a number of floating DC sources. In this paper, a 7-level inverter is proposed for the DVR application which requires only one DC source. It should be noted that for the same number of levels, the cascaded H-bridge (CHB) multilevel inverter will require at least (if it is asymmetric) two DC sources. On the other hand, the single-DC-source multilevel inverters such as the flying-capacitor (FC) and the neutral-pint-clamped (NPC) topologies require high number of switches and the DC source utilization factor is low. The proposed multilevel inverter requires one DC source and offers higher number of voltage levels to number of elements. The performance evaluation of the proposed multilevel inverter based DVR is undertaken with the simulations using MATLAB/Simulink.
多电平逆变器以其固有的优点被广泛应用。多电平逆变器的常见应用之一是电能质量(PQ)改善装置,如动态电压恢复器(DVR)。如何获得DVR中使用的逆变器所需的直流电源是DVR中的一个重要问题。由于提供直流电压源具有挑战性且成本高昂,因此应尽量减少所需独立直流电源的数量。然而,大多数多电平逆变器需要若干浮动直流电源。本文提出了一种只需要一个直流电源的DVR应用的7电平逆变器。应该注意的是,对于相同数量的电平,级联h桥(CHB)多电平逆变器将至少需要两个直流源(如果它是不对称的)。另一方面,单直流源多电平逆变器,如飞行电容器(FC)和中性针脚箝位(NPC)拓扑,需要大量的开关,直流源利用率低。所提出的多电平逆变器需要一个直流电源,并为多个元件提供更高数量的电压电平。利用MATLAB/Simulink对所提出的基于多电平逆变器的DVR进行了性能评估。
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引用次数: 0
Fully Soft-switched Non-isolated High Step-down DC/DC Converter with Minimum Component Count 全软开关非隔离高降压DC/DC变换器具有最小的分量计数
Pub Date : 2022-02-01 DOI: 10.1109/PEDSTC53976.2022.9767238
S. Khalili, M. Packnezhad, H. Farzanehfard
A fully soft-switched high step-down converter with minimum number of passive and active components is presented in this paper, which is suitable for non-isolated DC/DC applications. High voltage conversion ratio is achieved by a pair of coupled inductors while zero voltage switching condition for the main switch along with zero current switching condition for the main diode at turn-off are provided by adding only an auxiliary active switch and a coupled inductor to the basic buck converter. Thus, the converter is optimum in terms of component count among the soft-switched high step-down converters. The mentioned converter advantages have contributed to the realization of high efficiency. To confirm the theoretical operation and analysis of the converter, a laboratory prototype circuit is implemented for 155-to-24V at 100W and 100kHz.
本文提出了一种适用于非隔离DC/DC应用的全软开关高降压变换器,其无源元件和有源元件数量最少。高电压转换比是通过一对耦合电感来实现的,而在基本降压变换器上只增加一个辅助有源开关和一个耦合电感,就能提供主开关的零电压开关条件和主二极管关断时的零电流开关条件。因此,在软开关高降压变换器中,就元件数量而言,该变换器是最佳的。上述变流器的优点有助于实现高效率。为了验证变换器的理论运行和分析,在100W和100kHz下实现了155- 24v的实验室原型电路。
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引用次数: 0
A Single-Switch High Step-Up DC–DC Converter with Low Input Current Ripple for Renewable Energy Applications 用于可再生能源应用的低输入纹波单开关高升压DC-DC变换器
Pub Date : 2022-02-01 DOI: 10.1109/pedstc53976.2022.9767428
Mir Yahya Hassani, M. Maalandish, Seyed Amir Hossein Hosseini
In this paper, a high step-up DC-DC converter with a dual-output is studied. The presented converter is assembled from a modified SEPIC and a three-level boost converter. The most significant advantage of this structure is achieving different high voltage gains for two outputs, using only one power switch and one input voltage source. The modified SEPIC converter supplies one of these outputs and the other output is provided by the three-level boost converter. The three-level stage is constructed by diode-capacitor units. The generated voltage gain by this stage is independent of the SEPIC part, which causes the proposed converter becomes appropriate for two different consumers. Depending on duty cycle of the switch, the SEPIC converter can be step-up or step-down, which in this case, it works in step-up mode. In further, the proposed converter analysis is explained in detail. Finally, performance of the presented converter is evaluated by simulation results.
本文研究了一种具有双输出的高升压DC-DC变换器。该变换器由一个改进的SEPIC和一个三电平升压变换器组装而成。该结构最显著的优点是仅使用一个电源开关和一个输入电压源,就可以实现两个输出的不同高电压增益。改进的SEPIC转换器提供其中一个输出,另一个输出由三电平升压转换器提供。三级级是由二极管电容单元构成的。这一阶段产生的电压增益与SEPIC部分无关,这使得所提出的转换器适用于两个不同的消费者。根据开关的占空比,SEPIC转换器可以升压或降压,在这种情况下,它工作在升压模式。进一步,对所提出的转换器进行了详细的分析。最后,通过仿真结果对该变换器的性能进行了评价。
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引用次数: 0
A Non-Isolated High Step-up Two-Input Single Output DC-DC Converter with Less Number of Components 一种非隔离高升压双输入单输出DC-DC变换器,元件数量少
Pub Date : 2022-02-01 DOI: 10.1109/pedstc53976.2022.9767471
H. Radmanesh, M. Maalandish, S. Pourjafar
In this study, a new two-input single output DC-DC converter with continuous input current is presented. Less number of components (capacitors, inductors, switches, and diodes) is another advantage of the proposed structure which leads to low cost and volume. The proposed converter benefits from the advantages of the conventional boost converter. A comparison with another recently presented converters is represented to illustrate the advantages of the proposed converter. Low input current ripple, simple structure, and high voltage gain are the main advantages of proposed topology, so the proposed structure is suitable for use in renewable applications that need maximum power point tracking (MPPT). Different operational modes and steady-state analyses have been represented. To verify the theoretical analysis, the simulation results of the proposed converter is provided.
本文提出了一种新型的双输入单输出连续输入DC-DC变换器。元件(电容器、电感、开关和二极管)数量较少是该结构的另一个优点,它可以降低成本和体积。该变换器具有传统升压变换器的优点。与最近提出的另一种变换器进行了比较,以说明所提出的变换器的优点。该结构具有输入电流纹波小、结构简单、电压增益高的优点,适用于需要最大功率点跟踪(MPPT)的可再生能源应用。介绍了不同的运行模式和稳态分析。为了验证理论分析,给出了该变换器的仿真结果。
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引用次数: 1
Soft Switched Non-Isolated High Step-up DC-DC Converter Based on Combination of Buck-Boost and Switched Resonator Converters 基于Buck-Boost和开关谐振器组合的软开关非隔离高升压DC-DC变换器
Pub Date : 2022-02-01 DOI: 10.1109/PEDSTC53976.2022.9767210
M. Hajilou, H. Farzanehfard
In this paper, a soft switched non-isolated high step-up DC-DC converter based on combination of buck-boost and switched resonator converters is proposed which is the combination of a buck-boost and a switched resonator converter. To reduce the converter semiconductor elements, one switch of the switched resonator structure is shared with the buck-boost structure. Soft switching condition for both switches is established without using any axillary switch, also, all diodes except one are turned OFF under ZCS condition which has mitigated the reverse recovery problem. Semiconductor elements soft-switching operation has reduced the converter switching losses and contributed to increased efficiency. In the continuation of this article, the proposed converter operational principle and steady-state analysis are discussed. The proposed converter is simulated by PSpice software at 24V input, 350V output and 200W, and results are presented. The simulation results confirm the converter analysis and operation.
本文提出了一种基于buck-boost和开关谐振器相结合的软开关非隔离高升压DC-DC变换器,即buck-boost和开关谐振器相结合的变换器。为了减少变换器的半导体元件,开关谐振器结构的一个开关与降压结构共用。在不使用任何腋窝开关的情况下,建立了两个开关的软开关条件,并且在ZCS条件下,除了一个二极管外,所有二极管都关闭,从而减轻了反向恢复问题。半导体元件的软开关操作降低了变换器的开关损耗,提高了效率。在本文的续文中,讨论了所提出的变换器的工作原理和稳态分析。利用PSpice软件对该变换器在输入24V、输出350V、功率200W下进行了仿真,并给出了仿真结果。仿真结果验证了变换器的分析和运行。
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引用次数: 1
Modeling and Control of a Single-Inductor Multi-Input Multi-Output DC-DC Boost Converter for PV Applications 光伏应用中单电感多输入多输出DC-DC升压变换器的建模与控制
Pub Date : 2022-02-01 DOI: 10.1109/pedstc53976.2022.9767320
A. Asadi, K. Abbaszadeh, A. Darabi
This article proposed a Single-inductor multi-input multi-output (SI-MIMO) boost converter with two inputs and two outputs. SI-MIMO dc-dc converters are widely used in various engineering applications, including chargers for hybrid vehicles and photovoltaic (PV) panels, because of the benefit of high-power density and low cost. These converters are proper for renewable energy sources like PV panels. By hybridizing energy sources, the advantages of using different sources are achievable. Moreover, the outputs' power can be flexibly divided between input sources. Additionally, charging or discharging of energy storage by other input sources can be easily controlled. Due to control of the converter, A decoupling network is introduced. Considering the decoupled design and small-signal linearization, the required linear controllers are designed using SISO control strategies for this MIMO system.
提出了一种双输入双输出的单电感多输入多输出(SI-MIMO)升压变换器。由于具有高功率密度和低成本的优点,SI-MIMO dc-dc转换器广泛应用于各种工程应用,包括混合动力汽车的充电器和光伏(PV)面板。这些转换器适用于可再生能源,如光伏电池板。通过混合能源,可以实现使用不同能源的优势。此外,输出功率可以在不同输入源之间灵活分配。另外,可以很容易地控制其他输入源对储能的充电或放电。针对变换器的控制,引入了解耦网络。考虑解耦设计和小信号线性化,采用SISO控制策略设计了该MIMO系统所需的线性控制器。
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引用次数: 2
期刊
2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)
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