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2013 International Conference on Power, Energy and Control (ICPEC)最新文献

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Comparison of artificial intelligence techniques for the enhancement of power quality 提高电能质量的人工智能技术比较
Pub Date : 2013-06-13 DOI: 10.1109/ICPEC.2013.6527715
S. Bangia, P. Sharma, Maneesha Garg
Artificial Intelligence techniques are the recent trends used for the enhancement of power quality. This paper deals with analysis and comparison of different artificial techniques for harmonic reduction in the source current. Artificial Intelligence may include Fuzzy logic and Artificial Neural Network. The purpose of the simulation is to enhance the power quality by using the concepts that cannot be expressed as "true" or "false" but rather as "partially true" called as Fuzzy logic and intelligent features of the neuron cell. Shunt Active Filter is one of the controller that can be used for suppress the source current harmonics and compensates the reactive power. Hysteresis current controller is used to control the switching of Voltage Source Inverter. The D-Q Frame theory is used to generate the reference compensating current. Simulations are carried out in MATLAB environment using power system toolbox.
人工智能技术是提高电能质量的最新趋势。本文分析比较了各种降低源电流谐波的人工技术。人工智能可以包括模糊逻辑和人工神经网络。仿真的目的是通过使用不能表示为“真”或“假”,而是“部分真”的概念,即模糊逻辑和神经元细胞的智能特征,来提高电能质量。并联有源滤波器是一种既能抑制源电流谐波又能补偿无功功率的控制器。迟滞电流控制器用于控制电压源逆变器的开关。采用D-Q框架理论产生基准补偿电流。利用电力系统工具箱在MATLAB环境下进行仿真。
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引用次数: 8
Optimal allocation of FACTS controllers for critical loading margin enhancement 提高临界负荷裕度的FACTS控制器的优化配置
Pub Date : 2013-06-13 DOI: 10.1109/ICPEC.2013.6527629
J. Prasad, K. Sekhar
Currently, most of the power systems operate under deregulation environment. This mode of operation leads the power systems in to unpredictable and sometimes unsecured states with the competition among market participants in addition to the uncertainties. The maintenance of acceptable range of bus voltage magnitudes and transmission congestion management are become essential preventive tasks to the system operator to drive the competitive electricity market schedule. Due to the lack of reactive power support and transmission system capacity, the networks could also subject to voltage instability. In order to improve the transmission system loadability even under line outage contingencies, this paper addressing the application of flexible ac transmission system (FACTS) devices. Based on the impact on critical loading margin (CLM), the contingencies have been ranked. The critical loading margin is determined using repeated power flow (RPF) method and possible improvement is achieved with various FACTS devices in the network. SVC, TCSC, TCPST and UPFC devices have been considered to install in the network.
目前,大多数电力系统是在放松管制的环境下运行的。这种运行模式除了不确定性外,还伴随着市场参与者之间的竞争,导致电力系统处于不可预测的、有时甚至是不安全的状态。维护母线电压可接受范围和管理输电拥塞已成为系统运营商推动竞争激烈的电力市场调度的重要预防性任务。由于缺乏无功支持和输电系统容量,电网也可能受到电压不稳定的影响。为了提高输电系统在突发停电情况下的负荷能力,本文研究了柔性交流输电系统(FACTS)设备的应用。根据对临界负荷余量(CLM)的影响,对突发事件进行了排序。采用重复功率流(RPF)方法确定了临界负荷裕度,并通过网络中的各种FACTS设备实现了可能的改进。已考虑在网络中安装SVC、TCSC、TCPST和UPFC设备。
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引用次数: 12
Performance metrics for evaluating spacecraft power control and management (PCM) 评价航天器功率控制与管理(PCM)的性能指标
Pub Date : 2013-06-13 DOI: 10.1109/ICPEC.2013.6527705
C. Madhusudhana, J. Kishore
The power subsystem is the most critical system in a spacecraft due to the dependency of nearly every other subsystem for power. The power system configuration depends on various factors such as amount of power required, type of orbit, duration of the mission, constraints on mass volume, and the impact of the system's hardware on the spacecraft design. Power system encompasses power generation, energy storage and power processing. The organization of control and management circuits to carry out these functionalities is termed as Power Control and Management (PCM). Selection of an appropriate PCM is must for achieving the desired mission goal. This makes its choice a most important one for spacecraft Engineers. Different methods are adopted for finding out a suitable PCM. However availability of indices facilitate the evaluation of electrical performance of PCM systems. Hence a set performance metrics which would serve as benchmark has been detailed here. In the end, a typical case has been enumerated to demonstrate the usefulness of these metrics.
动力分系统是航天器中最关键的系统,因为几乎所有其他分系统都依赖于动力。动力系统的配置取决于各种因素,如所需的功率、轨道类型、任务持续时间、对质量体积的限制以及系统硬件对航天器设计的影响。电力系统包括发电、储能和电力处理。实现这些功能的控制和管理电路的组织称为电源控制和管理(PCM)。为了实现预期的任务目标,必须选择合适的PCM。这使得它的选择成为航天器工程师最重要的选择。采用不同的方法来寻找合适的PCM。然而,指标的可用性有助于对PCM系统的电气性能进行评价。因此,这里详细介绍了一组可以作为基准的性能指标。最后,列举了一个典型案例来证明这些度量的有用性。
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引用次数: 6
A novel seeker optimization approach for solving combined economic and emission dispatch 求解经济与排放联合调度的导引头优化新方法
Pub Date : 2013-06-13 DOI: 10.1109/ICPEC.2013.6527684
M. S. Syed, A. R. Syed, Y. S. Rao
Over the past 50 years the average global temperature has increased at the fastest rate in record history. The main reason behind this is emission of Carbon dioxide from thermal power plants. The U.S only produces 2.5 billion tons every year. This paper solves the problem of emission dispatch including economic dispatch combining as combined economic dispatch and emission dispatch (CEED). Economic dispatch gives a solution to reduce the total fuel cost while Emission dispatch is to reduce the emission level with the required system constraints. In this paper Particle swarm Optimization is used to solve CEED on a test system and the results are compared with Ant Colony Optimization (ACO) algorithm.
在过去的50年里,全球平均气温以有记录以来最快的速度上升。这背后的主要原因是火力发电厂排放的二氧化碳。美国每年只生产25亿吨。本文解决了包括经济调度相结合的排放调度问题,即经济调度与排放调度相结合。经济调度是降低总燃料成本的解决方案,排放调度是在系统约束条件下降低排放水平的解决方案。本文将粒子群算法应用于某测试系统的CEED求解,并将求解结果与蚁群算法进行了比较。
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引用次数: 5
Design, analysis and simulation of linear controller of a STATCOM for reactive power compensation on variation of DC link voltage 基于直流链路电压变化进行无功补偿的STATCOM线性控制器设计、分析与仿真
Pub Date : 2013-06-13 DOI: 10.1109/ICPEC.2013.6527627
S. K. Sethy, J. Moharana
The STATCOM (STATic synchronous COMpensator) is a shunt connected voltage source converter using self-commutating device and can be effectively used for reactive power control. Its principle of operation is similar to that of a synchronous condenser. This paper describes the modeling of STATCOM along with the design of linear current and voltage controllers. The design of controllers for the converters can be realized in two ways. The first method is a non-linear realization, which results in simple control rules with faster dynamics. The second method is a linear method, which requires system modeling. The second approach is adopted and simulated waveforms are presented in the paper. The designed controllers with variation of DC link voltage have been applied to the STATCOM and suitable DC link voltage has been selected on basis of spike and over shoot of the responses. All responses are obtained through MATLAB SIMULINK tool box and presented here for clarity of the control strategy.
静态同步补偿器(STATCOM)是一种采用自换流装置的并联电压源变换器,可以有效地用于无功控制。其工作原理与同步冷凝器相似。本文介绍了STATCOM的建模以及线性电流和电压控制器的设计。变换器控制器的设计有两种实现方式。第一种方法是非线性实现,控制规则简单,动态速度快。第二种方法是线性方法,它需要系统建模。本文采用了第二种方法,并给出了仿真波形。将所设计的具有直流链路电压变化的控制器应用于STATCOM,并根据响应的尖峰和过峰选择合适的直流链路电压。所有的响应都是通过MATLAB SIMULINK工具箱获得的,为了使控制策略更清晰,这里给出了这些响应。
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引用次数: 12
Time delay controller combined with sliding mode for DC motor position control: Experimental validation on Quanser QET 延时控制器与滑模组合用于直流电动机位置控制:qanser QET的实验验证
Pub Date : 2013-06-13 DOI: 10.1109/ICPEC.2013.6527698
A. Kadam, D. Ray, S. Shimjith, P. Shendge, S. Phadke
In this paper, the design of sliding mode control strategy based on Time Delay Control (TDC) is presented. TDC is a control technique in which the time delayed signals of system variables are used to estimate and compensate the system uncertainties and external disturbances. This paper shows how TDC works when the plant have an external unmeasurable disturbance and with uncertain parameters. Finally, all the results are experimentally verified on the Quanser QET DCMCT kit.
提出了一种基于时滞控制的滑模控制策略。TDC是一种利用系统变量的时滞信号来估计和补偿系统不确定性和外部干扰的控制技术。本文介绍了在存在不可测量的外部扰动和参数不确定的情况下,系统的TDC工作原理。最后,在Quanser QET DCMCT试剂盒上对所有结果进行了实验验证。
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引用次数: 4
An LQR and pole placement controller for CSC based STATCOM 基于CSC的STATCOM的LQR和极点放置控制器
Pub Date : 2013-06-13 DOI: 10.1109/ICPEC.2013.6527634
S. Gupta, R. K. Tripathi
Flexible AC Transmission Systems (FACTS) devices have been used for the solving power quality problems in the transmission system. In FACTs devices, Static Synchronous Compensator (STATCOM) is a shunt FACTS device, which is able to provide the reactive power compensation to the transmission line. STATCOM is the many input and many output system (MIMO). In this paper, the CSC based STATCOM is controlled by pole placement and LQR methods. These methods are tested in MATLAB, and their results are obtained. The simulation results show an improvement in input-output response of CSC based STATCOM.
柔性交流输电系统(FACTS)设备已被用于解决输电系统中的电能质量问题。在FACTs器件中,静态同步补偿器(STATCOM)是一种能够向输电线路提供无功补偿的并联FACTs器件。STATCOM是多输入多输出系统(MIMO)。本文采用极点配置和LQR方法对基于CSC的STATCOM进行控制。在MATLAB中对这些方法进行了测试,并得到了结果。仿真结果表明,基于CSC的STATCOM的输入输出响应得到了改善。
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引用次数: 8
Neural network based dynamic simulation of induction motor drive 基于神经网络的感应电机驱动动态仿真
Pub Date : 2013-06-13 DOI: 10.1109/ICPEC.2013.6527722
P. M. Menghal, A. Laxmi
With the improvement in the technology of Microprocessor and Power Electronics, Induction motor drives with digital control have become more popular. Artificial intelligent controller (AIC) could be the best candidate for Induction Motor control. Over the last two decades researchers have been working to apply AIC for induction motor drives. This is because that AIC possesses advantages as compared to the conventional PI, PID and their adaptive versions. The main advantages are that the designs of these controllers do not depend on accurate system mathematical model and their performances are robust. In recent years, scientists and researchers have acquired significant development on various sorts of control theories and methods. Among these control technologies, intelligent control methods, which are generally regarded as the aggregation of Fuzzy Logic Control, Neural Network Control, Genetic Algorithm, and Expert System, have exhibited particular superiorities. The artificial neural network controller introduced to the system for keeping the motor speed to be constant when the load varies. The speed control scheme of vector controlle d induction motor drive involves decoupling of the speed and ref speed into torque and flux producing components. The performance of artificial neural network based controller's is compared with that of the conventional proportional integral controller. The dynamic modeling of Induction motor is done and the performance of the Induction motor drive has been analyzed for constant and variable loads. By using neuro controller the transient response of induction machine has been improved greatly and the dynamic response of the same has been made faster.
随着微处理器技术和电力电子技术的进步,数字控制的感应电机驱动越来越受欢迎。人工智能控制器(AIC)是感应电机控制的最佳选择。在过去的二十年里,研究人员一直致力于将AIC应用于感应电机驱动。这是因为与传统的PI、PID及其自适应版本相比,AIC具有优势。其主要优点是该控制器的设计不依赖于精确的系统数学模型,具有较强的鲁棒性。近年来,科学家和研究人员在各种控制理论和方法上取得了重大进展。在这些控制技术中,通常被认为是模糊逻辑控制、神经网络控制、遗传算法和专家系统的集合的智能控制方法显示出其独特的优势。在系统中引入人工神经网络控制器,使电机在负载变化时保持转速不变。矢量控制异步电动机驱动的速度控制方案涉及将速度和转速解耦为产生转矩和磁链的分量。将基于人工神经网络的控制器与传统比例积分控制器的性能进行了比较。建立了感应电动机的动力学模型,分析了感应电动机在恒载和变载情况下的传动性能。采用神经控制器大大改善了感应电机的暂态响应,提高了感应电机的动态响应速度。
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引用次数: 26
IFOC of five-phase induction motor drive IFOC采用五相感应电机驱动
Pub Date : 2013-06-13 DOI: 10.1109/ICPEC.2013.6527671
M. Sowmiya, G. Renukadevi, K. Rajambal
This paper presents an indirect field oriented control (IFOC) of five-phase induction motor drive fed by a five-phase inverter using mat lab/simulink. IFOC is an established control method for high dynamic performance AC drives and the control is simple and highly reliable. Three phase induction motors have many well recognized advantages however their applications are limited to lower end of the high power range due to limitations on rating of power semiconductor devices. A strong contender in achieving high power is multiphase inverter fed induction motor drive. Multiphase motors have various advantages such as lower torque pulsation, reduced current per phase without increasing the voltage per phase, reduction in harmonic current, greater reliability, fault tolerance and minimal de-rating at occurrence of fault. A dq-axis model of five phase induction motor fed by a five leg inverter is developed and an IFOC controller presented. Simulation results are included to illustrate the performance of the five phase induction motor with IFOC.
本文利用matlab /simulink实现了由五相逆变器驱动的五相感应电动机的间接磁场定向控制(IFOC)。IFOC是一种成熟的高动态性能交流变频器控制方法,控制简单,可靠性高。三相异步电动机具有许多公认的优点,但由于功率半导体器件的额定值限制,其应用仅限于高功率范围的低端。实现高功率的有力竞争者是多相逆变电源感应电机驱动。多相电动机具有转矩脉动小、每相电流小而不增加每相电压、谐波电流小、可靠性高、容错性强、故障发生时降级小等优点。建立了由五腿逆变器馈电的五相异步电动机的dq轴模型,并给出了IFOC控制器。仿真结果说明了带IFOC的五相感应电动机的性能。
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引用次数: 19
The practicability of ICA in home appliances load profile separation using current signature: A preliminary study 基于电流特征的ICA在家用电器负荷剖面分离中的实用性初步研究
Pub Date : 2013-06-13 DOI: 10.1109/ICPEC.2013.6527756
S. Semwal, Deepak Joshi, R. S. Prasad, D. Raveendhra
The identification of appliances has its unique application in detecting fraudulent electricity consumption; this is an important feature for smart meter. The current signature of signal individual and composite appliances has a possible feature set to separate an individual load from the current signature of composite load. We exploited the source signal separation feature of Independent Component Analysis (ICA) to observe the feasibility of ICA in separating an individual load profile from its composite current waveform. The results suggest that, for most of the electrical loads(used for experiment) ICA has been successful to extract the individual waveform from its composite load current signature with more than cross correlation value of 0.75, between the experimental current signature and ICA extracted current signature. The research work proposes a direction to use ICA as an intermediate step to develop a device identification classifier.
电器的识别在检测虚假用电量方面有其独特的应用;这是智能电表的一个重要特性。信号单独和复合装置的当前签名具有将单独负载与复合负载的当前签名分离的可能特征集。我们利用独立分量分析(ICA)的源信号分离特性来观察ICA从复合电流波形中分离单个负载剖面的可行性。结果表明,对于大多数实验用电负荷,ICA已成功地从其复合负载电流特征中提取出单个波形,实验电流特征与ICA提取的电流特征之间的相互关系大于0.75。研究工作提出了以ICA为中间步骤开发设备识别分类器的方向。
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引用次数: 17
期刊
2013 International Conference on Power, Energy and Control (ICPEC)
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