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2023 IEEE 17th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)最新文献

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Inverters for Power Systems with Renewable Sources: Basic Topologies and Purposes 可再生能源电力系统的逆变器:基本拓扑结构和用途
Iuliia Yamnenko, T. Tereshchenko, I. Fedin, Edivan Laercio Carvalho, Yuliia Kozhushko, Oleksandr F. Bondarenko
The paper deals with the power supply systems for MicroGrid based on multilevel inverters. An analysis of promising voltage inverter topologies for use in MicroGrid power systems with renewable energy sources has been conducted. The development of power supply systems with PV cells using multilevel inverters is promising. An analysis of the operation of single-level inverters with impedance and quasi-impedance links in the input circuit showed that these devices are capable of meeting the specific requirements for inverters used in systems with RES. Multilevel topology enables work at higher frequencies and a larger factor of input voltage use. The use of an impedance (Z-inverter) or quasi-impedance link (qZ-inverter) additionally satisfies the need to ensure the continuity of the inverter’s input voltage. Multilevel voltage inverters with the ability to increase the amplitude of the inverter’s input voltage are a promising direction for the development of inverters for use in systems using solar panels as renewable power sources.
研究了基于多电平逆变器的微电网供电系统。分析了可再生能源微电网中有前途的电压逆变器拓扑结构。采用多电平逆变器的光伏电池供电系统具有广阔的发展前景。对输入电路中具有阻抗和准阻抗链路的单电平逆变器的工作分析表明,这些器件能够满足res系统中使用的逆变器的特定要求。多电平拓扑可以在更高的频率和更大的输入电压使用因子下工作。阻抗(z型逆变器)或准阻抗链路(qz型逆变器)的使用也满足了保证逆变器输入电压连续性的需要。具有提高逆变器输入电压幅值能力的多电平逆变器是将太阳能电池板作为可再生能源的系统中使用的逆变器的一个有前途的发展方向。
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引用次数: 0
Initial Evaluation of Multiport Power Supply System for Medical Lighting Equipment 医用照明设备多端口供电系统的初步评价
Alexander Bubovich, P. Suskis, I. Galkin
Multiport converters are used in various applications, where it is needed to interface multiple sources and multiple loads. As an example, multiport converters are used in renewable energy applications, distribution grids, electric vehicles, etc. Another field of application of multiport converters can be power supply units for medical equipment. To increase the reliability of medical equipment, it is beneficial to use batteries as a backup supply, in case of failures in the main power source. Also, modern medical equipment can have several functions, and different loads may require different characteristics of input voltages and currents. As an example of such modern medical equipment there is a surgical lighting system with adjustable positioning of reflector during the operation of the system. Such a luminaire requires different voltage levels for different system parts (LED drivers, control unit, sensors, etc.). Considering the necessity of adding backup power supply, the most suitable solution is the application of multiport converter. This paper deals with the initial evaluation of partially isolated multiport converter with the help of Matlab-Simulink model.
多端口转换器用于各种需要连接多个源和多个负载的应用中。例如,多端口转换器用于可再生能源应用,配电网,电动汽车等。多端口转换器的另一个应用领域是医疗设备的电源单元。为了提高医疗设备的可靠性,在主电源出现故障时,使用电池作为备用电源是有益的。此外,现代医疗设备可以具有多种功能,不同的负载可能需要不同的输入电压和电流特性。作为这种现代医疗设备的一个例子,有一种手术照明系统,该系统在操作过程中具有可调节反射器的定位。这样的灯具对不同的系统部件(LED驱动器、控制单元、传感器等)要求不同的电压水平。考虑到增加备用电源的必要性,采用多端口变换器是最合适的解决方案。本文利用Matlab-Simulink模型对部分隔离型多端口转换器进行了初步评估。
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引用次数: 0
Single loop controller for T-type rectifier and dual active bridge converter t型整流器和双有源桥式变换器的单回路控制器
Ali Sharida, S. Bayhan, H. Abu-Rub
This paper proposes a robust single loop sliding mode controller (SMC) to control a three-phase three-level Ttype active front end rectifier (AFR) that is feeding a dual active bridge (DAB) converter. This controller is simple, robust, and fast due to its dependence on a single current controller for both converters instead of a cascaded controller. The proposed controller is described theoretically and validated through simulations. According to the results, the proposed control technique provides fast tracking with zero steady-state error and can overcome disturbances, measurement noise, and uncertainty.
本文提出了一种鲁棒单环滑模控制器(SMC)来控制馈入双有源桥(DAB)变换器的三相三电平Ttype有源前端整流器(AFR)。该控制器简单、鲁棒、快速,因为它依赖于两个转换器的单个电流控制器,而不是级联控制器。对所提出的控制器进行了理论描述,并通过仿真进行了验证。结果表明,所提出的控制方法具有快速跟踪、零稳态误差、克服干扰、测量噪声和不确定性的能力。
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引用次数: 0
Experimental evaluation of inductor configurations and modulation techniques in an interleaved three-level DC/DC SiC-based converter 交错三电平DC/DC sic基变换器中电感配置和调制技术的实验评估
Rafał Kopacz, M. Harasimczuk, J. Rąbkowski, Radosław Sobieski
This paper presents an investigation on a non-isolated, three-level DC/DC converter; more specifically, on the possible combinations of inductor configurations and modulation techniques directly affecting the performance of the converter. The many state-of-the-art and conventional solutions are compared theoretically, as well as based on experimental considerations founded on a medium voltage SiC-based DC/DC converter to be applied as an energy storage interfacing system in a fast charging station. The study focuses on the effects of the configurations on the output ripples of the converter, which is crucial for battery-oriented systems. The tests were performed at 1 kV and up to nearly 10 kW of power, successfully validating the use of each configuration. It is shown that for a system to operate in a wide output range, the current ripple criterion is not enough for choosing the optimal configuration, and other factors, e.g., efficiency, must be considered.
本文研究了一种非隔离的三电平DC/DC变换器;更具体地说,对可能的组合电感配置和调制技术直接影响变换器的性能。从理论上比较了许多最先进的和传统的解决方案,并基于实验考虑建立了一个中压硅基DC/DC变换器,作为快速充电站的储能接口系统。研究的重点是结构对变换器输出波纹的影响,这对面向电池的系统至关重要。测试在1千伏和近10千瓦的功率下进行,成功验证了每种配置的使用情况。结果表明,要使系统在较宽的输出范围内工作,电流纹波判据不足以选择最佳配置,必须考虑效率等其他因素。
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引用次数: 0
Switching-Cycle-Based Startup for Grid-tied Inverters 并网逆变器开关周期启动
Yuchen He, Yuan Li, Bokang Zhou, F. Peng
This paper presents a novel switching cycle-based startup approach that eliminates the need for voltage sensors and phase-locked loops. The proposed method surpasses the bandwidth limitations inherent in traditional PLL-based synchronization techniques and attains grid synchronization of the inverter within two switching cycles. Despite the absence of voltage sensors and PLLs, this synchronization is achieved without inrush currents. Furthermore, the startup method does not necessitate the addition of any hardware or an increase in software complexity. Simulation and experimental results are presented to verify the effectiveness of the proposed method.
本文提出了一种新的基于开关周期的启动方法,该方法消除了对电压传感器和锁相环的需要。该方法克服了传统基于锁相环的同步技术固有的带宽限制,在两个开关周期内实现了逆变器的电网同步。尽管没有电压传感器和锁相环,但这种同步是在没有涌流的情况下实现的。此外,启动方法不需要添加任何硬件或增加软件复杂性。仿真和实验结果验证了该方法的有效性。
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引用次数: 1
Improving Dynamic Response of Grid-Connected Converters with Electronic DC Links 改进带电子直流链路并网变流器的动态响应
P. Strajnikov, A. Abramovitz, A. Kuperman
An Electronic Capacitor (EC) is a bidirectional DCDC converter that utilizes a small auxiliary capacitance and mimics the low-frequency behavior of a different (typically much higher) capacitance. The well-known problem of using the electronic capacitor as an alternative to an electrolytic one is its poor ability to withstand step load changes. This paper proposes a novel approach to achieve better dynamic behavior of an EC, improving its ability to withstand sudden load changes while maintaining total harmonic distortion (THD) and DC-link voltage undershoot (US) standards of the grid. PSIM simulations are presented to support the validity of the proposed methodology.
电子电容(EC)是一种双向DCDC转换器,它利用一个小的辅助电容来模拟不同(通常高得多)电容的低频行为。众所周知的问题是,使用电子电容器作为电解电容器的替代品,其承受阶跃负载变化的能力较差。本文提出了一种新的方法来实现EC更好的动态行为,提高其承受突然负载变化的能力,同时保持电网的总谐波失真(THD)和直流链路电压欠冲(US)标准。通过PSIM仿真验证了所提方法的有效性。
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引用次数: 0
Design-Oriented Dissipativity Enhancement for Single-Loop Voltage Control of Grid-FormingVSCs 面向设计的栅格成型vscs单回路电压控制的耗散率增强
Shan He, Frede Blaabjerg
In light of harmonic stability caused by the control delay and the wide-varied grid impedance, grid-side current feedforward is an effective method to enhance the dissipativity for voltage control of grid-forming converters. However, the dissipative characteristic of converter output impedance is seriously affected by the designed LC-filter resonance frequency and the filter parameters deviation. To fill this gap, a design-oriented control scheme is proposed using three variables feedforward, i.e., converter-side current, capacitor current, and capacitor voltage. As a result, not only the dissipativity can be achieved below Nyquist frequency, but also the dissipativity robustness against the LC-filter parameter deviation is enhanced. Besides, the LC-filter resonance frequency can be designed freely without considering the critical frequency. Finally, the proposed method is validated through the simulation.
考虑到控制延迟和电网阻抗变化较大造成的谐波稳定性,电网侧电流前馈是提高成网变流器电压控制耗散率的有效方法。然而,设计的lc -滤波器谐振频率和滤波器参数偏差严重影响变换器输出阻抗的耗散特性。为了填补这一空白,提出了一种面向设计的控制方案,采用三个前馈变量,即变流器侧电流、电容器电流和电容器电压。因此,不仅可以在奈奎斯特频率下实现耗散率,而且可以增强耗散率对lc滤波器参数偏差的鲁棒性。此外,lc滤波器的谐振频率可以不考虑临界频率而自由设计。最后,通过仿真验证了所提方法的有效性。
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引用次数: 0
AC Loss Analysis Approaches for Hairpin Winding Configuration: Analytical, Hybrid Model, and FEA 发夹绕组结构的交流损耗分析方法:解析、混合模型和有限元分析
P. S. Ghahfarokhi, A. Kallaste, Andrejs Podgornovs, A. M. Cardoso, A. Belahcen, T. Vaimann
One of the effective options to achieve higher power density and lower-weight electric motors for electric vehicle (EV) applications is to replace the conventional winding with a hairpin configuration. This novel concept has several advantages, but the biggest drawback is high AC loss. Therefore, as this type of winding utilizes in EV motors for high-speed application, the correct estimations of this loss are essential during the design procedure. This paper presents three primary approaches to model and calculate the AC loss of hairpin windings: analytical, hybrid model, and FEA methods. In addition, the FEA method is used to validate and evaluate the accuracy of two other methods. Accordingly, both analytical and hybrid model results agree with FEA results. However, the hybrid model has higher accuracy rather than the analytical method.
实现电动汽车(EV)应用中更高功率密度和更轻重量的电动机的有效选择之一是用发夹结构取代传统的绕组。这种新颖的概念有几个优点,但最大的缺点是高交流损耗。因此,由于这种类型的绕组用于高速应用的电动电机,在设计过程中对这种损耗的正确估计是必不可少的。本文介绍了模拟和计算发夹绕组交流损耗的三种主要方法:解析法、混合模型和有限元法。此外,利用有限元法对另外两种方法的精度进行了验证和评价。因此,分析模型和混合模型的计算结果与有限元分析结果一致。然而,混合模型比解析方法具有更高的精度。
{"title":"AC Loss Analysis Approaches for Hairpin Winding Configuration: Analytical, Hybrid Model, and FEA","authors":"P. S. Ghahfarokhi, A. Kallaste, Andrejs Podgornovs, A. M. Cardoso, A. Belahcen, T. Vaimann","doi":"10.1109/CPE-POWERENG58103.2023.10227403","DOIUrl":"https://doi.org/10.1109/CPE-POWERENG58103.2023.10227403","url":null,"abstract":"One of the effective options to achieve higher power density and lower-weight electric motors for electric vehicle (EV) applications is to replace the conventional winding with a hairpin configuration. This novel concept has several advantages, but the biggest drawback is high AC loss. Therefore, as this type of winding utilizes in EV motors for high-speed application, the correct estimations of this loss are essential during the design procedure. This paper presents three primary approaches to model and calculate the AC loss of hairpin windings: analytical, hybrid model, and FEA methods. In addition, the FEA method is used to validate and evaluate the accuracy of two other methods. Accordingly, both analytical and hybrid model results agree with FEA results. However, the hybrid model has higher accuracy rather than the analytical method.","PeriodicalId":315989,"journal":{"name":"2023 IEEE 17th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"357 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113989097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis of Performances of Single-Phase PV Transformer-Less Inverters for Compliance with the New Standards CEI 0-21and IEEE 1547-2018 符合CEI 0-21和IEEE 1547-2018新标准的单相光伏无变压器逆变器性能分析
R. Mastromauro
The new Italian standard CEI 0-21 allows the choice about single-phase or three-phase connection to the Distribution System Operator (DSO). This applies to Photovoltaic Systems (PVSs) with power up 10 kW. Single-phase connection to the grid is adopted for power below 6kW. Differently, both single-phase connection and three-phase connection are possible in the range [6–10] kW. Single-phase transformer-less DC/AC converters can exhibit some issues about the compliance with safety requirements. As the transformer-less inverters market is becoming more competitive, the aim of this paper is to benchmark some single-phase transformer-less DC/AC converters providing a fair comparison. The performances are evaluated considering leakage current, reactive power handling capability, power quality, filter and power converter rating.
新的意大利标准CEI 0-21允许选择单相或三相连接到配电系统运营商(DSO)。这适用于功率在10kw以上的光伏系统(pv)。6kW以下电力采用单相并网。不同的是,在[6-10]kW的范围内,单相连接和三相连接都是可能的。无单相变压器的DC/AC变流器在符合安全要求方面可能会出现一些问题。由于无变压器逆变器市场竞争日益激烈,本文的目的是对一些单相无变压器直流/交流变换器进行基准测试,提供公平的比较。综合考虑漏电电流、无功处理能力、电能质量、滤波器和功率变换器额定功率等因素对其性能进行评价。
{"title":"Analysis of Performances of Single-Phase PV Transformer-Less Inverters for Compliance with the New Standards CEI 0-21and IEEE 1547-2018","authors":"R. Mastromauro","doi":"10.1109/CPE-POWERENG58103.2023.10227432","DOIUrl":"https://doi.org/10.1109/CPE-POWERENG58103.2023.10227432","url":null,"abstract":"The new Italian standard CEI 0-21 allows the choice about single-phase or three-phase connection to the Distribution System Operator (DSO). This applies to Photovoltaic Systems (PVSs) with power up 10 kW. Single-phase connection to the grid is adopted for power below 6kW. Differently, both single-phase connection and three-phase connection are possible in the range [6–10] kW. Single-phase transformer-less DC/AC converters can exhibit some issues about the compliance with safety requirements. As the transformer-less inverters market is becoming more competitive, the aim of this paper is to benchmark some single-phase transformer-less DC/AC converters providing a fair comparison. The performances are evaluated considering leakage current, reactive power handling capability, power quality, filter and power converter rating.","PeriodicalId":315989,"journal":{"name":"2023 IEEE 17th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121140820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
High-Performance Bidirectional Fast EV Charger Featuring Full Power/Voltage Range and Cost-Effective Implementation 高性能双向快速电动汽车充电器具有全功率/电压范围和经济高效的实施
H. Sarnago, I. Álvarez, Óscar Lucía
Fast chargers are a key element for transportation electrification. This paper proposed a fast charger topology able to comply with modern requirements in terms of bidirectionality and operation in the whole voltage range for 400 V and 800 V batteries at full power. The proposed architecture takes advantage of active filtering and partial power processing to achieve a cost-effective and efficient implementation. The proposed converter has been analyzed, simulated, and designed, and it will be tested using a 50-kW upwards-scalable module.
快速充电器是交通运输电气化的关键因素。本文提出了一种400v和800v电池在全功率下,既能满足现代要求的双向性,又能在全电压范围内工作的快速充电器拓扑结构。所提出的架构利用有源滤波和部分功率处理来实现经济高效的实现。所提出的转换器已经进行了分析、仿真和设计,并将使用50kw向上扩展模块进行测试。
{"title":"High-Performance Bidirectional Fast EV Charger Featuring Full Power/Voltage Range and Cost-Effective Implementation","authors":"H. Sarnago, I. Álvarez, Óscar Lucía","doi":"10.1109/CPE-POWERENG58103.2023.10227422","DOIUrl":"https://doi.org/10.1109/CPE-POWERENG58103.2023.10227422","url":null,"abstract":"Fast chargers are a key element for transportation electrification. This paper proposed a fast charger topology able to comply with modern requirements in terms of bidirectionality and operation in the whole voltage range for 400 V and 800 V batteries at full power. The proposed architecture takes advantage of active filtering and partial power processing to achieve a cost-effective and efficient implementation. The proposed converter has been analyzed, simulated, and designed, and it will be tested using a 50-kW upwards-scalable module.","PeriodicalId":315989,"journal":{"name":"2023 IEEE 17th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115368277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
2023 IEEE 17th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)
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