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2010 IEEE Industry Applications Society Annual Meeting最新文献

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QFT-Based Robust Simmering Control for Domestic Induction Cookers Using an Infrared Sensor 基于qft的家用电磁炉红外传感器鲁棒慢炖控制
Pub Date : 2010-11-01 DOI: 10.1109/IAS.2010.5615684
D. Paesa, C. Franco, S. Llorente, G. López-Nicolás, C. Sagüés
This paper presents a robust simmering control for induction hobs. This kind of process is almost impossible to carry out in a domestic cooker where the pot temperature is unknown. We exploit an analytical model of the cooking process to design a QFT-based controller. The resultant controller satisfies all user requirements such as a quick heating up, an accurate temperature control and a fast disturbance rejection. Additionally, the proposed temperature control can also minimize the energy consumption and, as a consequence, it can increase the efficiency of the cooking process. Finally, the effectiveness of our proposal has been verified by means of verification test in real induction hobs.
提出了一种感应滚刀的鲁棒慢炖控制方法。这种过程几乎不可能在锅温未知的家用炊具中进行。我们利用蒸煮过程的解析模型来设计一个基于qft的控制器。由此产生的控制器满足所有用户的要求,如快速加热,精确的温度控制和快速抗干扰。此外,提出的温度控制也可以最大限度地减少能源消耗,因此,它可以提高烹饪过程的效率。最后,通过实际感应滚刀的验证试验,验证了该方法的有效性。
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引用次数: 6
Energy Yield and Power Fluctuation of Different Control Methods for Wind Energy Converters 风能变流器不同控制方式的发电量和功率波动
Pub Date : 2010-11-01 DOI: 10.1109/IAS.2010.5615951
B. Ni, C. Sourkounis
With worldwide increasing shares of electricity generated by wind energy converters, their influence on the mains stability and their reliable energy contribution becomes more and more relevant. The system management of wind energy converters has great influence on the power yield and the damping/amplification of wind caused power fluctuations. This paper compares the performance of different control methods for wind energy converters, regarding their energy yield and electrical power output fluctuation at different wind conditions. The results show that the Stochastic Dynamic Optimization control combines very high energy yield with the best fluctuation damping.
随着世界范围内风能变流器发电份额的增加,其对市电稳定性的影响及其可靠的能源贡献变得越来越重要。风能变流器的系统管理对发电量和风力引起的功率波动的阻尼/放大有很大的影响。本文比较了风力变流器在不同风况下的发电量和输出功率波动情况下不同控制方法的性能。结果表明,该随机动态优化控制方法结合了极高的能量产出和最佳的波动阻尼。
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引用次数: 37
Oscillatory Dielectric Liquid Flow Generated by EHD Micropump EHD微泵产生的介电液体振荡流
Pub Date : 2010-11-01 DOI: 10.1109/IAS.2010.5616852
I. Kano
An electrohydrodynamic (EHD) micropump to generate oscillating flow is newly developed and experimentally tested using an arrangement of thin stainless steel wires of diameter 0.3 mm. A working fluid is accelerated from the charged electrode to the ground electrode by a high electric field. The electric body force responsible for this acceleration is primarily the Coulomb force. To increase the electric filed at low applied voltage, the electrode gap between the charged and ground electrodes is reduced to 0.2 mm. The size of the present EHD pump is 24×30×7.8 mm3, in which ten pairs of electrodes are fabricated. In order to generate oscillating flows, the sinusoidal wave voltage and the rectangular wave voltage are applied. The present EHD pump is demonstrated to successfully generate oscillating flows at low frequencies (0.01 Hz ~ 5 Hz).
一种用于产生振荡流的电流体动力(EHD)微泵是新开发的,并通过直径0.3 mm的细不锈钢丝排列进行了实验测试。工作流体被高电场从带电电极加速到接地电极。造成这种加速度的电体力主要是库仑力。为了在低外加电压下增加电场,充电电极和接地电极之间的电极间隙减小到0.2 mm。目前EHD泵的尺寸为24×30×7.8 mm3,其中制造了10对电极。为了产生振荡流,施加正弦波电压和矩形波电压。目前的EHD泵已被证明可以成功地产生低频振荡流(0.01 Hz ~ 5 Hz)。
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引用次数: 0
Performance of Wind Energy Conversion System Using a Doubly Fed Induction Generator for Maximum Power Point Tracking 双馈感应发电机风电转换系统最大功率点跟踪性能研究
Pub Date : 2010-11-01 DOI: 10.1109/IAS.2010.5614738
Bhim Singh, S. Aggarwal, T. C. Kandpal
This paper deals with the analysis, modeling, and control of a doubly-fed induction generator (DFIG) driven by the wind turbine. A control technique is presented for extracting the maximum power from the wind turbine. The wind energy conversion system (WECS) is equipped with a DFIG and two back-to-back connected voltage source converters (VSCs) in the rotor circuit. The proposed control technique is based on using the grid-side converter to regulate the dc link voltage constant. The task of the rotor side converter is to track the maximum power point for the wind turbine and to maintain unity power factor at stator terminals. The description for the proposed system is presented with the detailed dynamic modeling equations. Simulation results for different operating conditions are demonstrated to reveal the performance of the proposed technique. Corresponding simulation results under unity power factor operating conditions are presented to demonstrate the effectiveness of the control technique. Finally, the energy captured by two generators, a DFIG and a squirrel cage induction generator (SCIG) is presented for a place Jakhau (Gujarat) in India, which is estimated on the basis of the wind speed variation over a day.
本文研究了风力发电机驱动双馈感应发电机(DFIG)的分析、建模和控制。提出了一种从风力机中提取最大功率的控制技术。风能转换系统(WECS)在转子电路中配备了一个DFIG和两个背靠背连接的电压源变换器(VSCs)。所提出的控制技术是基于利用电网侧变换器来调节直流链路电压常数。转子侧变流器的任务是跟踪风力机的最大功率点,并在定子端保持统一的功率因数。用详细的动力学建模方程对系统进行了描述。在不同工况下的仿真结果验证了该方法的有效性。给出了统一功率因数工况下的仿真结果,验证了控制技术的有效性。最后,介绍了两台发电机(DFIG和鼠笼感应发电机(SCIG))在印度古吉拉特邦Jakhau地区捕获的能量,并根据一天的风速变化进行了估计。
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引用次数: 29
An IGBT-Based Pulsed Power Supply in the Fabrication of Non-Contiguous Nanofibres Using Electrospinning 基于igbt的脉冲电源在静电纺丝制备非连续纳米纤维中的应用
Pub Date : 2010-11-01 DOI: 10.1109/IAS.2010.5615285
R. Baba, S. Jayaram
Nanofibres are useful in many areas due to their outstanding characteristics: small size and high surface-to-volume ratio. Recently, drug delivery systems using polymer nanofibres have gained significant attention. For these systems, a chopped nanofibre is required because the amount of drug released depends on the length of the fibre. Electrospinning is the simplest method of fabricating polymer nanofibres. In the process, a high voltage creates an electrified jet which eventually becomes a nanofibre. The jet ejects when a high voltage is applied and vice versa. It is therefore possible to fabricate and chop nanofibres by controlling the value of the voltages applied. In this research, an IGBT-based pulsed power supply has been designed and built. The IGBTs are connected in series to increase a withstand voltage. The power supply can produce square pulses with a width of a few hundred microseconds to DC and amplitudes up to 10 kV. The technique of non-continuous-mode electrospinning using the pulsed power supply was able to fabricate and chop nanofibres with PEO. The minimum pulse width that can initiate a jet is approximately 80 ms in this study. A jet is always ejected during the pulse-on voltage when the duty ratio is more than 40%.
纳米纤维由于其突出的特点:小尺寸和高表面体积比,在许多领域都很有用。近年来,利用高分子纳米纤维的给药系统获得了极大的关注。对于这些系统,需要切碎的纳米纤维,因为释放的药物量取决于纤维的长度。静电纺丝是制备高分子纳米纤维最简单的方法。在这个过程中,高电压会产生带电的射流,最终形成纳米纤维。当施加高压时,射流喷射,反之亦然。因此,通过控制施加的电压值来制造和切割纳米纤维是可能的。在本研究中,设计并制作了一种基于igbt的脉冲电源。igbt是串联的,以增加耐压。该电源可以产生宽度为几百微秒的方形脉冲,到直流电,振幅可达10千伏。利用脉冲电源的非连续模式静电纺丝技术可以制备和切割PEO纳米纤维。在本研究中,可以启动射流的最小脉冲宽度约为80毫秒。当占空比大于40%时,脉冲导通电压期间总是有射流喷射。
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引用次数: 4
Simple Dynamic Overmodulation Strategy for Fast Torque Control in DTC of Induction Machines with Constant Switching Frequency Controller 基于恒开关频率控制器的异步电机直接转矩快速控制的简单动态过调制策略
Pub Date : 2010-11-01 DOI: 10.1109/IAS.2010.5616876
A. Jidin, N. Idris, A. Yatim, Malik Elbuluk, T. Sutikno
This paper presents a simple dynamic overmodulation method to obtain a fast dynamic torque response in DTC of induction machines with constant switching frequency controller. A fast dynamic torque response can be obtained by switching only the most optimized voltage vector during torque dynamic condition. The optimized voltage vector can be identified by comparing the rate of change of torque produced between applications of two possible active voltage vectors, according to the flux position. The selection of the optimized voltage vector can be simply implemented by modifying the flux error status before it is being fed to the look-up table. It will be shown that, the proposed switching strategy facilitates the DTC to perform under six-step mode to achieve the fastest dynamic torque response. The effectiveness of the proposed dynamic overmodulation to obtain the fast torque response is verified with some experimental results
本文提出了一种简单的动态过调制方法,在恒开关频率控制器的异步电机直接转矩控制中获得快速的动态转矩响应。在转矩动态状态下,只需切换最优的电压矢量即可获得快速的动态转矩响应。根据磁通位置,通过比较两种可能的有效电压矢量在应用之间产生的转矩变化率,可以识别出优化的电压矢量。优化电压矢量的选择可以简单地通过修改磁通误差状态来实现,然后再将其输入查找表。结果表明,所提出的切换策略有利于DTC在六步模式下工作,以获得最快的动态转矩响应。实验结果验证了所提出的动态过调制方法获得快速转矩响应的有效性
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引用次数: 1
Compact Fluorescent Lamps and Their Effect on Power Quality and Application Guidelines 紧凑型荧光灯及其对电能质量的影响和应用指南
Pub Date : 2010-11-01 DOI: 10.1109/IAS.2010.5615449
M. K. Richard, P. K. Sen
The compact florescent lamp (CFL) is becoming an increasingly popular light source for households replacing the commonly used incandescent lamps. CFLs have advantages and disadvantages; among those advantages are cost savings, energy reduction, increased efficacy, and longer life expectancy. Appearance, poor power factor and harmonic impact on distribution systems are some of their disadvantages. This paper discusses the various application issues related to the CFL's.
紧凑型荧光灯(CFL)正在成为越来越受欢迎的家庭光源,取代了常用的白炽灯。cfl有优点和缺点;这些优点包括节省成本、减少能源、提高效率和延长预期寿命。外观、功率因数差和对配电系统的谐波影响是它们的一些缺点。本文讨论了与节能灯有关的各种应用问题。
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引用次数: 18
Studies on Compact Discharge Plasma Source for NOx Treatment in Engine Exhaust 致密放电等离子体源处理发动机尾气NOx的研究
Pub Date : 2010-11-01 DOI: 10.1109/IAS.2010.5615188
S. Mohapatro, B. S. Rajanikanth
This paper proposes a compact electric discharge plasma source for controlling NOX emission in diesel engine exhaust. An automobile ignition coil was used to generate the high voltage pulse using flyback topology. This design is aimed at retrofitting the existing catalytic converters with pulse assisted cleaning technique. In this paper we bring out a relative comparison of discharge plasma and plasma-adsorbent process at different gas flow rates. Activated alumina was used as adsorbent. The main emphasis is laid on the development of a compact pulse source from a DC supply for the removal of NOX from the filtered diesel engine exhaust.
提出了一种用于控制柴油机排气NOX排放的小型放电等离子体源。采用反激拓扑,利用汽车点火线圈产生高压脉冲。本设计旨在用脉冲辅助清洗技术改造现有的催化转化器。本文对不同气体流速下的放电等离子体和等离子体吸附工艺进行了比较。采用活性氧化铝作为吸附剂。主要的重点是开发一种紧凑的脉冲源,从直流电源中去除过滤后的柴油发动机排气中的氮氧化物。
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引用次数: 2
The Effect of Charge Injection on EHD Conduction Pumping 电荷注入对EHD传导泵送的影响
Pub Date : 2010-11-01 DOI: 10.1109/IAS.2010.5616849
M. Yazdani, J. Seyed-Yagoobi
Electrohydrodynamics (EHD) conduction pumping takes advantage of Coulomb force generated by externally applied electric field and dissociated charges from electrolytes present in the working fluid. With the electric field maintained below the DC breakdown limit, EHD conduction generated flow relies primarily upon the asymmetry of the electrodes where the flow is always generated toward the specific direction regardless of the electrodes polarity. The charge distribution induced by the process of dissociation may be altered by charge injection, potentially present at the electrodes' surfaces. The charge injection could occur, for example, because of the electrode surface roughness. This paper is a numerical investigation to quantify the impact of the charge injection on the performance of EHD conduction pump. The numerical domain comprises a coplanar asymmetric electrode pair embedded against a 2-D channel wall with the EHD conduction induced liquid flow expected to be generated from the narrower electrode toward the wider electrode. The electric field, net charge density, and electric body force distributions are presented in the absence and presence of charge injection. In addition, the electrically generated net flow is calculated for several operating conditions.
电流体动力学(EHD)导泵利用了外部外加电场产生的库仑力和工作流体中电解质的解离电荷。当电场保持在直流击穿极限以下时,EHD传导产生的流动主要依赖于电极的不对称性,无论电极的极性如何,流动总是朝着特定的方向产生。由解离过程引起的电荷分布可能通过电荷注入而改变,电荷注入可能存在于电极表面。例如,由于电极表面粗糙,可能会发生电荷注入。本文通过数值研究来量化电荷注入对EHD传导泵性能的影响。数值域包括嵌入在二维通道壁上的共面不对称电极对,其中EHD传导诱导的液体流动预计将从较窄的电极向较宽的电极产生。给出了有无电荷注入情况下的电场、净电荷密度和电体力分布。此外,还计算了几种工况下的发电净流量。
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引用次数: 5
A Complete Modeling and Simulation of Induction Generator Wind Power Systems 感应发电机风力发电系统的完整建模与仿真
Pub Date : 2010-11-01 DOI: 10.1109/IAS.2010.5615388
Yu Zou, M. Elbuluk, Y. Sozer
This paper presents the modeling and simulation of wind power systems based on two different induction generators; the squirrel-cage induction generator (SCIG) and the doubly-fed induction generator (DFIG). The techniques of direct grid integration of SCIG system and independent power control of DFIG system are discussed. Particularly, to solve the droop in distribution line voltage in SCIG system, a reactive power static compensator (STACOM) is used and a comparison of distribution line voltage is conducted between the SCIG and DFIG systems. Besides, in DFIG system, a fitting curve for optimal power versus speed is proposed for the turbine model and a cross-coupling relation between three phase choke and stator-side converter is also emphasized. Both wind power systems and their grid integration techniques are modeled and simulated in Matlab/Simulink. The results demonstrated the characteristics of both systems under varying wind speeds. Compared to the conventional constant speed SCIG system, variable speed DFIG reveals its superiority in terms of optimal power capture as well as constant distribution line voltage.
本文介绍了基于两种不同感应发电机的风力发电系统的建模与仿真;鼠笼式感应发电机(SCIG)和双馈式感应发电机(DFIG)。讨论了SCIG系统的直接并网技术和DFIG系统的独立功率控制技术。具体来说,为了解决SCIG系统中配电网电压下降的问题,采用了无功静态补偿器(STACOM),并对SCIG系统和DFIG系统的配电网电压进行了比较。此外,在DFIG系统中,提出了汽轮机模型的最优功率与转速的拟合曲线,并强调了三相扼流圈与定子侧变流器之间的交叉耦合关系。在Matlab/Simulink中对风力发电系统及其电网集成技术进行了建模和仿真。结果显示了两种系统在不同风速下的特性。与传统的恒速SCIG系统相比,变速DFIG在最优的电力捕获和恒定的配电网电压方面显示出其优势。
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引用次数: 61
期刊
2010 IEEE Industry Applications Society Annual Meeting
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