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2016 13th International Conference on Power Electronics (CIEP)最新文献

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Working in a smart grid for a sustainable gym 在智能电网中为可持续发展的健身房工作
Pub Date : 2016-08-08 DOI: 10.1109/CIEP.2016.7530772
M. Mendez-Gayol, M. Rico-Secades, M. Calleja, A. J. Pablo, J. Quintana
The purpose of this project is to analyze the technical possibilities of implementing a sustainable gym, where all the electric energy generated by sport machines, is injected into the grid. In a first phase it will be include electric generators to the static bicycles based on permanents magnets generators (PMG), so that all the energy is injected to a DC bus. Subsequently an electronic inverter who is working in current mode inject all the power generated to the gym grid.
这个项目的目的是分析实现可持续健身房的技术可能性,在这里,所有由运动器械产生的电能都被注入电网。在第一阶段,它将包括基于永久磁铁发电机(PMG)的静态自行车发电机,这样所有的能量都被注入直流母线。随后,在电流模式下工作的电子逆变器将产生的所有电力注入健身房电网。
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引用次数: 4
Design methodology for quadratic step-down dc-dc converters based on non-cascading structures 基于非级联结构的二次降压dc-dc变换器设计方法
Pub Date : 2016-08-08 DOI: 10.1109/CIEP.2016.7530758
E. Moreno-Basaldúa, J. Morales-Saldaña, R. Loera-Palomo
This paper deals about a design methodology of a family of quadratic step - down converters based on the reduced redundant power processing principle (R2P2). Here, it is included the expressions for the selection of passive elements, as well as, the expressions of average and maximum values of voltage and current useful to select properly the semiconductor elements. The aim of this paper is to develop a methodology for R2P2 converters under an operation in Continuous Conduction Mode. Simulations in PSpice verifies the results.
本文研究了一种基于R2P2冗余功率处理原理的二次型降压变换器的设计方法。文中给出了无源元件选择的表达式,以及对合理选择半导体元件有用的电压和电流的平均值和最大值的表达式。本文的目的是开发一种在连续导通模式下操作的R2P2变换器的方法。在PSpice中进行仿真验证了结果。
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引用次数: 3
Experimental results concerning to the effects of the initial position of the projectile on the conversion efficiency of a reluctance accelerator 弹丸初始位置对磁阻加速器转换效率影响的实验结果
Pub Date : 2016-08-08 DOI: 10.1109/CIEP.2016.7530737
Jorge Luis Rivas-Camacho, M. Ponce-Silva, V. Olivares-Peregrino
A single stage reluctance accelerator, was designed and built as a proof of concept of this kind of electromagnetic launcher. An experimental setup was designed for this launcher, consisting in doing a series of firings varying, for each one of them, the initial position of a ferromagnetic projectile - a tubular section of steel - inside its drive coil at different values of initial voltage in its capacitor bank (i.e. its electrical energy initially stored): 60 V, 75 V, 100 V, 125 V, and 150 V. For each firing the estimated exit speed of the projectile, obtained via an optical sensor consisting in a par IR LED/Phototransistor, was recorded in order to estimate the conversion efficiency, n, of the launcher. This paper describes the effects of the variation of the initial position of the projectile inside the drive coil, on the conversion efficiency of a reluctance accelerator observed in this experimental setup. Also, possible causes of such effects are discussed.
设计并制造了单级磁阻加速器,作为这种电磁发射装置的概念验证。为这个发射器设计了一个实验装置,包括做一系列的发射变化,对于其中的每一个,铁磁弹丸的初始位置-钢管部分-在其电容器组(即其初始存储的电能)的初始电压不同值的驱动线圈内:60 V, 75 V, 100 V, 125 V和150 V。对于每一次发射,估计弹丸的出口速度,通过一个光学传感器组成的par红外LED/光电晶体管,被记录下来,以便估计发射装置的转换效率n。本文描述了在实验装置中观察到的磁阻加速器中,弹丸在驱动线圈内初始位置的变化对其转换效率的影响。并讨论了产生这种效应的可能原因。
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引用次数: 11
A phase-locked loop with saturated estimator for single-phase grid synchronization 基于饱和估计器的单相电网同步锁相环
Pub Date : 2016-08-08 DOI: 10.1109/CIEP.2016.7530761
G. Escobar, D. del Puerto-Flores, M. Lopez-Sanchez
This paper proposes a phase-locked-loop (PLL) with saturated estimation of the fundamental frequency. The overall PLL design consists of a third order system, where two parts could be identif ed. The f rst part represents the oscillating vector, a second order system, whose state variables are the voltage estimate signal and an estimate of a signal in quadrature (90 degrees behind and with same amplitude as the voltage estimate). The second part, represents an estimator of the fundamental frequency, which is proposed to be a saturated integrator in order to keep the fundamental frequency inside a given interval in a soft manner. The paper also presents a sketch of the convergence and stability proof of the proposed scheme. The proof is based on a time scale separation assumption, i.e., it assumes that the dynamics of the harmonic oscillator is faster than the dynamics of the frequency estimator. The performance is evaluated by simulations.
提出了一种基频饱和估计的锁相环(PLL)。整个锁相环设计由三阶系统组成,其中两部分可以识别:第一部分表示振荡矢量,二阶系统,其状态变量是电压估计信号和正交信号的估计(与电压估计相差90度,振幅相同)。第二部分,表示基频估计量,该估计量被提出为饱和积分器,以便以软方式将基频保持在给定区间内。最后给出了该方案的收敛性和稳定性证明。证明是基于一个时间尺度分离假设,即,它假设谐振子的动态比频率估计器的动态快。通过仿真对其性能进行了评价。
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引用次数: 1
BLDC motor commutation based on DSP builder for FPGA 基于DSP的无刷直流电机换相器
Pub Date : 2016-06-20 DOI: 10.1109/CIEP.2016.7530750
J. Cervantes, Erick Cordova, Angel Israel Soto Marrufo, Israel Ulises Ponce Monárrez, M. Nandayapa
Motion Control focus on BLDC motors based on hall effect sensors needs a strategy of voltage commutation between their windings. In this paper an alternative of a BLDC motor commutation based on DSP Builder toolbox is presented. The DSP Builder is a tool to FPGA programming in the Matlab/Simulink environment that reduce the programming complexity. The strategy is based on hall effect sensor signals and a bit of direction to generate the signals that enable the gates of MOSFETs. The strategy of commutation has been verified by simulation and experimentation with a BLDC motor.
基于霍尔效应传感器的无刷直流电机运动控制需要一种绕组间电压换相策略。本文提出了一种基于DSP Builder工具箱的无刷直流电机换相方案。DSP Builder是一种在Matlab/Simulink环境下进行FPGA编程的工具,可以降低编程的复杂性。该策略基于霍尔效应传感器信号和一点方向来产生使能mosfet闸管的信号。通过无刷直流电机的仿真和实验验证了该换相策略的有效性。
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引用次数: 3
A comparative analysis of grid-tied single-phase transformerless five-level NPC-based inverters for photovoltaic applications 光伏应用中无变压器并网单相五电平npc逆变器的比较分析
Pub Date : 2016-06-20 DOI: 10.1109/CIEP.2016.7530778
S. Iturriaga-Medina, C. A. Limones-Pozos, P. Martinez‐Rodriguez, G. Escobar, J. M. Sosa, A. Valdez‐Fernández, J. F. Martinez-Garcia
In recent years, photovoltaic systems designers have been started to pay attention in transformerless multilevel inverter topologies. This is due to they possess several advantages, such as, high efficiency, good performance, multiple voltage output levels and small size. In order to meet the safety requirement for transformerless grid-tied photovoltaic inverters, the leakage current has to be tackled carefully. To accomplish this requirement, common mode voltage has to be maintained in a constant value to avoid the current flow through the stray capacitances that appear between the photovoltaic array and the ground path. Due to the wide variety of available inverter topologies, in this paper a comparative analysis of efficiency between three neutral point clamped topologies is realized, besides modulations strategies are proposed to keep the common mode voltage constant to avoid leakage ground currents. Numerical results are performed in order to validate the analysis and modulation.
近年来,光伏系统设计人员开始关注无变压器多电平逆变器拓扑结构。这是由于它们具有效率高、性能好、多电压输出电平和体积小等优点。为了满足无变压器并网光伏逆变器的安全要求,必须认真解决漏电问题。为了实现这一要求,共模电压必须保持在一个恒定的值,以避免电流流过光伏阵列和地路径之间出现的杂散电容。由于可用的逆变器拓扑结构种类繁多,本文实现了三种中性点箝位拓扑的效率比较分析,并提出了保持共模电压恒定以避免漏地电流的调制策略。数值结果验证了分析和调制的正确性。
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引用次数: 17
Low cost electromyogram and electrical muscle stimulator 低成本肌电图和电肌肉刺激器
Pub Date : 2016-06-20 DOI: 10.1109/CIEP.2016.7530753
Hector-Miguel Montenegro-Monroy, R. Martínez-Méndez, Otneil Portillo-Rodriquez
Muscular system function could be affected by neurological disorders such as cerebral strokes, injuries and neurological disorders. Healthcare experts usually relay on their experience to diagnose and recommend a specific treatment. However, there exist technological devices capable to measure the electrical activity in the muscle improving the diagnostic; also there exist devices capable to aid on the rehabilitation of the muscle known as Transcutaneous Electrical Nerve Stimulators. Nevertheless, these devices are only available on laboratories or well-equipped clinics due mainly to the relatively expensive cost. This manuscript presents a low-cost device capable not only to measure the electromyographic activity but also is capable to stimulate the muscles in order to improve the rehabilitation of the muscle. Data could be visualized on a generic computer using the sound card as a data acquisition. This paper presents the development of such devices and preliminary results.
肌肉系统功能可能受到神经系统疾病的影响,如脑中风、损伤和神经系统疾病。医疗专家通常依靠他们的经验来诊断和推荐一种特定的治疗方法。然而,已有技术设备能够测量肌肉中的电活动,从而提高诊断;也有一些设备能够帮助肌肉的康复,被称为经皮神经电刺激器。然而,由于成本相对昂贵,这些设备只能在实验室或设备齐全的诊所使用。本文提出了一种低成本的装置,不仅能够测量肌电活动,而且能够刺激肌肉,以改善肌肉的康复。数据可以在使用声卡作为数据采集的通用计算机上可视化。本文介绍了这种装置的发展和初步结果。
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引用次数: 0
A switching control strategy to tracking problem for a bidirectional DC/DC converter 双向DC/DC变换器跟踪问题的开关控制策略
Pub Date : 2016-06-20 DOI: 10.1109/CIEP.2016.7530757
A. Mendoza-Torres, J. Armenta, N. Visairo, C. Nuñez
This paper analyses and designs a switching control strategy for a bidirectional DC/DC converter based on a hysteresis-type control. The purpose of the controller is to control the power that the Ultra-Capacitor (UC) have to deliver or absorb according to the reference generated by an Energy Management System (EMS). Its efficacy is tested in regards to PI traditional controllers in order to highlight its high speed of dynamic response without generating overshoots avoiding stress on the components. The approach uses switched linear model instead of average model, therefore the use of techniques such as PWM can be avoided. Finally, simulations using the Matlab/Simulink environment, was carried out to demonstrate the proposed controller effectiveness, it can be observed that hysteresis-type controller performance is better than the PI traditional controller.
本文分析并设计了一种基于磁滞型控制的双向DC/DC变换器开关控制策略。控制器的作用是根据能源管理系统(EMS)生成的参考值,控制UC (Ultra-Capacitor)必须输送或吸收的功率。针对PI传统控制器的有效性进行了测试,以突出其高速的动态响应,而不会产生超调,避免对组件产生应力。该方法使用切换线性模型代替平均模型,因此可以避免使用PWM等技术。最后,利用Matlab/Simulink环境进行仿真,验证了所提控制器的有效性,可以观察到滞回型控制器的性能优于PI传统控制器。
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引用次数: 1
An interleaved single phase grid tied converter aimed at DC microgrid applications 针对直流微电网应用的交错单相并网变换器
Pub Date : 2016-06-20 DOI: 10.1109/CIEP.2016.7530770
Carlos Correa-Betanzo, H. Calleja, C. Morales-Morales, B. López-Zapata
Nowadays, renewable energy sources can be incorporated into power generation systems using DC microgrids, which are design to provide the largest possible amount of energy at all times. When the energy available is not completely consumed within the microgrid, it is common practice to inject it into the mains so that it can be consumed somewhere else. This calls for a reliable, high performance converter between the DC microgrid and the mains. In this paper, a single-phase interleaved grid-tied converter for a DC microgrid is presented. Its main advantages are the reduction of the coupling phase inductors, low EMI noise, and high energy management capability. The feasibility of the converter was verified in simulation, and an experimental prototype of a 100 W multi-leg full-bridge converter was built. A maximum efficiency peak of 95% was obtained with a 3.9 % of THD.
如今,可再生能源可以被纳入使用直流微电网的发电系统,其设计目的是在任何时候提供尽可能多的能量。当可用的能源在微电网内没有被完全消耗时,通常的做法是将其注入主电源,以便可以在其他地方消耗。这就需要一个可靠的、高性能的直流微电网和市电之间的转换器。本文介绍了一种用于直流微电网的单相交错并网变换器。它的主要优点是减少了耦合相位电感,EMI噪声低,能量管理能力强。仿真验证了该变换器的可行性,并搭建了100w多支全桥变换器的实验样机。当THD浓度为3.9%时,效率最高可达95%。
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引用次数: 3
Diode-rectifier clamped half-bridge single-phase optimized transformerless inverter 二极管整流器箝位半桥单相优化无变压器逆变器
Pub Date : 2016-06-20 DOI: 10.1109/CIEP.2016.7530726
G. Vázquez, J. M. Sosa, P. Martinez‐Rodriguez, G. Escobar, M. Juárez, J. Renteria-Soto
This paper discusses the proposal of a single-phase inverter to deal with the leakage ground current problem in transformerless photovoltaic systems. The high efficiency and low cost allow non-isolated inverters to widespread their applications in the grid connected photovoltaic energy market. The removal of the low or high frequency transformer in a photovoltaic system let a ground path for the circulating leakage current produced by voltage variations in the stray capacitance formed between the photovoltaic panel surface and its grounded frame. To deal with this issue, a single-phase inverter and its modulation strategy is discussed in this paper. The topology is based in the conventional single-phase half-bridge inverter plus a single-phase full-bridge rectifier connected to a single switch. A conventional sinusoidal based pulse with modulation is proposed to improve the topology performance regarding leakage current. Finally, silicon carbide diodes are used in the diode bridge to significantly improve the overall inverter efficiency. Numerical results show that the proposed PV inverter modulated with the proposed modulation strategy complies with the transformerless norms and regulations and operates with high efficiency, being this suitable for applications of grid-connected transformerless PV energy generators.
本文提出了一种单相逆变器来解决无变压器光伏系统中漏电接地问题。非隔离逆变器的高效率和低成本使其在并网光伏能源市场得到广泛应用。在光伏系统中移除低频或高频变压器,为光伏板表面与其接地框架之间形成的杂散电容的电压变化所产生的循环泄漏电流提供了接地通道。为了解决这个问题,本文讨论了一种单相逆变器及其调制策略。该拓扑结构基于传统的单相半桥逆变器加上连接到单个开关的单相全桥整流器。为了改善泄漏电流的拓扑性能,提出了一种传统的基于正弦波的调制脉冲。最后,在二极管桥中使用碳化硅二极管,显著提高了逆变器的整体效率。数值计算结果表明,采用该调制策略调制的光伏逆变器符合无变压器规范和法规,运行效率高,适合于无变压器光伏发电机组并网应用。
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引用次数: 1
期刊
2016 13th International Conference on Power Electronics (CIEP)
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