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2014 IEEE 6th India International Conference on Power Electronics (IICPE)最新文献

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Single stage single phase solar inverter with improved fault ride through capability 改进故障穿越能力的单级单相太阳能逆变器
Pub Date : 2014-12-01 DOI: 10.1109/IICPE.2014.7115828
J. Arya, L. Saini
Now-a-days effective solar power generation is necessary for smart grid implementation. Grid fed single-stage single-phase solar inverter with incremental conductance MPPT (INC+ regulator), closed loop current and voltage controller is implemented. In normal condition inverter current T.H.D is under the limit as per IEEE-519. At the time of fault, inverter having voltage imbalance, which may lead to damage. System fault ride through capability is improved by using Series Dynamic Braking Resistor (SDBR) with high current error as control parameter. Protection scheme maintains the grid code and hence the solar inverter needs not to be disconnected from the grid during the fault. Comparative results are obtained by simulation in MATLAB R2013a software. The whole system can be used in local distribution system as an application in future effectively.
如今,高效的太阳能发电是智能电网实施的必要条件。实现了带递增电导MPPT (INC+调节器)、闭环电流电压控制器的并网单级单相太阳能逆变器。在正常情况下,逆变器电流T.H.D低于IEEE-519规定的限值。在发生故障时,逆变器具有电压不平衡,这可能导致损坏。采用大电流误差串联动态制动电阻(SDBR)作为控制参数,提高了系统的故障穿越能力。保护方案维持电网代码,因此太阳能逆变器在故障期间不需要与电网断开。在MATLAB R2013a软件中进行仿真,得到了比较结果。整个系统可以在今后的地方配电系统中得到有效的应用。
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引用次数: 4
Modified sine wave phase disposition PWM technique for harmonic reduction in multilevel inverter fed drives 修正正弦波相位配置PWM技术在多电平逆变电源驱动中的谐波抑制
Pub Date : 2014-12-01 DOI: 10.1109/IICPE.2014.7115854
P. P. Acharya, Vishal S. Rangras
Advancement in Multilevel Inverter Technologies and its Control Techniques has been emerging in leaps and bounds. Such an inclination towards this area is because of its high power handling capability as well as improved power quality. Low Total Harmonic Distortion (THD) and less thermal Stress on Switches and improved performance are its added advantages. Switching strategies plays a very important role in optimizing inverter performance parameters. In this paper a novel multicarrier sine Pulse Width Modulation (PWM) Phase Disposition technique is introduced which significantly reduces THD. The proposed switching technique is described using relevant mathematical analysis, and results are obtained from simulation study, which consequently illustrates the improved performance of the overall system as compared to conventional one.
多电平逆变器技术及其控制技术的发展突飞猛进。这种倾向于这个领域是因为它的高功率处理能力以及改进的电能质量。低总谐波失真(THD)和小热应力开关和改进的性能是它的附加优点。开关策略在优化逆变器性能参数中起着非常重要的作用。本文介绍了一种新型的多载波正弦脉宽调制(PWM)相位配置技术,该技术可显著降低系统的THD。采用相应的数学分析对所提出的开关技术进行了描述,并通过仿真研究得出了结果,结果表明,与传统的开关技术相比,系统的整体性能得到了改善。
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引用次数: 5
Optimized rotor slot shape for squirrel cage induction motor in electric propulsion application 鼠笼式异步电动机在电力推进中的转子槽形优化
Pub Date : 2014-12-01 DOI: 10.1109/IICPE.2014.7115846
Md Junaid Akhtar, R. Behera, S. Parida
Design of squirrel cage induction motor for propulsion system is different from that of conventional design. Efficiency, power factor and locked rotor torque are important performance measures of a propulsion system. For an induction motor, the above mentioned parameters are expected to be high. In this paper, the effect of geometrical variations in rotor slot on the performance of induction motor is analyzed. The simulation results are presented for variation in different rotor slot shape. It shows that the shape of the rotor can effect on the performance of the induction motor. Hence, these findings may be helpful to the design engineers for choosing the proper slot dimensions.
鼠笼式异步电动机推进系统的设计不同于传统的设计。效率、功率因数和锁定转子转矩是衡量推进系统性能的重要指标。对于感应电机,上述参数预计会很高。本文分析了转子槽的几何变化对异步电动机性能的影响。给出了不同转子槽形变化的仿真结果。结果表明,转子的形状对异步电动机的性能有一定的影响。因此,这些发现可能有助于设计工程师选择合适的槽尺寸。
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引用次数: 4
Operating temperature of PV module modified with surface cooling unit in real time condition 采用表面冷却装置对光伏组件进行实时修改后的工作温度
Pub Date : 2014-12-01 DOI: 10.1109/IICPE.2014.7115790
Madhu Sharma, K. Bansal, D. Buddhi
High operating temperature decreases photo voltaic module efficiency. Normal Operating Cell Temperature, NOCT of silicon crystalline is about 49°C as reported. A cooling unit with reverse flow water circulation is designed, fabricated and applied on PV back surface to partially avoid undesirable effect of its temperature increase. This modified module with cooling unit and similar non-cooled modules are installed outdoor identically at University of Petroleum and Energy Studies campus, Dehradun. Installed Normal Operating Cell Temperature, INOCT of both the modules are determined and compared by varying water flow rate from cooling unit. And also water flow rate is optimized to maintain minimum possible operating temperature.
工作温度高会降低光伏组件的效率。据报道,硅晶体的正常工作电池温度约为49°C。设计、制作并在光伏背面安装了一套逆流水循环冷却装置,部分避免了光伏背面温度升高带来的不良影响。这个带有冷却装置的改进模块和类似的非冷却模块安装在Dehradun石油和能源研究大学的户外,相同。安装正常工作单元温度,两个模块的INOCT由不同的冷却水流量来确定和比较。此外,水流速度优化,以保持最低可能的工作温度。
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引用次数: 6
LVCMOS based energy efficient solar charge sensor design on FPGA 基于FPGA的LVCMOS节能太阳能充电传感器设计
Pub Date : 2014-12-01 DOI: 10.1109/IICPE.2014.7115800
Anu Singla, A. Kaur, B. Pandey
The performance and life span of energy storage solar battery depends on its charging and discharging. Solar charge controller regulates the rate of charging and discharging of battery for its smooth and efficient operation. Solar charge sensor, component of charge controller is used to invoke full charge alarm and also discharge alarm as per the voltage level of battery. Solar charge sensor consumes certain power. LVCMOS I/O standards is the low voltage complementary metal oxide semiconductor. There are 4 different LVCMOS available in 28nm technology based Artix-7 FPGA. We are proposing I/O standards for solar charge sensor in order to achieve energy efficiency with solar charge sensor. There is 60% reduction in I/O power, when we use LVCMOS15 in place of LVCMOS33 in solar charge sensor design at 900MHz. Similarly, we are saving 51.85% I/O power, when we use LVCMOS18 in place of LVCMOS33 in solar charge sensor design operating at 5 GHz. Similarly, we are saving 32.31% IO power, when we use LVCMOS25 in place of LVCMOS33 in solar charge sensor design operating at 60 GHz.
储能太阳能电池的性能和寿命取决于其充放电性能。太阳能充电控制器调节电池的充放电速率,保证电池的平稳高效运行。太阳能充电传感器是充电控制器的组成部分,根据电池的电压水平调用充满报警和放电报警。太阳能充电传感器消耗一定的电能。LVCMOS的I/O标准是低压互补金属氧化物半导体。基于28纳米技术的Artix-7 FPGA有4种不同的LVCMOS可用。为了实现太阳能充电传感器的能源效率,我们提出了太阳能充电传感器的I/O标准。当我们在900MHz太阳能充电传感器设计中使用LVCMOS15代替LVCMOS33时,I/O功率降低了60%。同样,当我们在5 GHz的太阳能充电传感器设计中使用LVCMOS18代替LVCMOS33时,我们节省了51.85%的I/O功率。同样,当我们在60 GHz的太阳能充电传感器设计中使用LVCMOS25代替LVCMOS33时,我们节省了32.31%的IO功率。
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引用次数: 15
Voltage regulation enhancement in a Buck type DC-DC converter using queen bee evolution based Genetic Algorithm 基于蜂王进化遗传算法的Buck型DC-DC变换器电压调节增强
Pub Date : 2014-12-01 DOI: 10.1109/IICPE.2014.7115836
Tousif Khan N, K. Sundareswaran
Buck converters are employed in several applications such as laptops, switched mode power supply, electronic gadgets, battery charging and communication networks. In order to have good regulation of capacitor voltage, Buck converters are generally provided with a feedback control mechanism. Since the converter dynamics changes from ON time period to OFF time period of the power electronic switch, the traditionally designed feedback controller provides only near-satisfactory voltage regulation. Aiming to obtain a more robust controller, which can track the desired voltage profile over large domain of operating points, the controller design for the feedback control of Buck DC-DC converter is constructed as an optimization problem and then the solution is acquired through a recently developed optimization technique known as queen bee evolution based Genetic Algorithm. The theoretical notions and implementation of the proposed methodology towards the search of a robust feedback control parameters for Buck converters are discussed in this paper. Extensive simulation and experimental studies under the presence of eventualities like matched and mismatched uncertainties are compared with conventional Genetic Algorithm, which thereby confirms the validity of the new approach.
降压转换器用于笔记本电脑、开关模式电源、电子设备、电池充电和通信网络等多种应用。为了对电容器电压有良好的调节,降压变换器一般采用反馈控制机制。由于变换器在电力电子开关的ON和OFF时间段的动态变化,传统设计的反馈控制器只能提供接近满意的电压调节。针对Buck - DC-DC变换器的反馈控制设计问题,采用基于蜂王进化的遗传算法,将Buck - dc变换器的控制器设计构造为一个优化问题,并对其进行求解。本文讨论了Buck变换器鲁棒反馈控制参数搜索方法的理论概念和实现。通过与传统遗传算法在存在匹配不确定性和不匹配不确定性等偶然性的情况下进行的大量仿真和实验研究,验证了新方法的有效性。
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引用次数: 8
Linearised modelling of switched reluctance motor for closed loop current control 开关磁阻电机闭环电流控制的线性化建模
Pub Date : 2014-12-01 DOI: 10.1109/IICPE.2014.7145018
S. S. Ahmad, G. Narayanan
Proportional Integral (PI) controller based current control is widely employed in different motor drives. However, in case of switched reluctance motor (SRM), the non-linearity and double saliency of the motor make the modelling and controller design challenging. This paper attempts linearisation of the flux linkage characteristic of the SRM at different operating points. The models include saturation and back-emf in an effective manner, as compared to existing methods. The different linearised models are evaluated for the purpose of current controller design. An effective method of controller design is found which directly relates the machine parameters to the controller gains.
基于比例积分(PI)控制器的电流控制被广泛应用于各种电机驱动中。然而,在开关磁阻电机(SRM)中,电机的非线性和双显著性使得建模和控制器设计具有挑战性。本文尝试对SRM在不同工作点的磁链特性进行线性化处理。与现有方法相比,该模型有效地包括了饱和和反电动势。为了设计电流控制器,对不同的线性化模型进行了评估。找到了一种将机器参数与控制器增益直接联系起来的有效控制器设计方法。
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引用次数: 3
Mitigation of reactive power requirements of large scale wind power generation in Western Rajasthan using Static Var Compensator 利用静态无功补偿器缓解拉贾斯坦邦西部大型风力发电的无功需求
Pub Date : 2014-12-01 DOI: 10.1109/IICPE.2014.7115737
A. Pathak, M. Sharma
Shunt capacitor banks are installed by developers pooling stations for management of reactive power for a wind farm. Operation of shunt capacitor banks is manually and accordingly there is a wide variation in wind power plant power factor of 0.9 lagging to 0.9 leading. Due to large variations in wind generation power factor, reactive power flows on transmission lines are also variable and accordingly there is a wide variation in power transmission system voltage from minimum 0.8 p.u. to a maximum of 1.20 p.u. Due to low & high power system voltages, transmission lines are tripped resulting constrained in a wind power evacuation. Considering the high penetration of wind power in the system, in this paper, Static Var Compensator (SVC) is proposed at 400kV GSS Jaisalmerfor large scale wind power penetrated power system, for mitigation of wind power generators reactive power. Simulation studies have been carried out to validate the effectiveness of the SVC for voltage control with the variation in wind power generation power factor. Case studies are carried out in 19-bus system in Western Rajasthan area where wind power penetration is even more than 2000MW to demonstrate the performance of the SVC taking the consolidated effect of voltage behavior with and without SVC at a different power factor. Wind power, penetrated part of Rajasthan power system has been modeled using Mi.-Power system analysis software. Results of tests conducted on the model system in various possible field conditions are presented and discussed.
并联电容器组由开发商安装,用于管理风电场的无功功率。并联电容器组的操作是手动的,因此风力发电厂的功率因数在0.9滞后到0.9领先之间变化很大。由于风力发电功率因数的巨大变化,输电线路上的无功功率流也是可变的,因此输电系统电压从最小的0.8 p.u.到最大的1.20 p.u.变化很大。由于电力系统电压的高低,输电线路会跳闸,导致风电疏散受到限制。考虑到风电在系统中的高穿透性,本文提出了在400kV GSS jaisalmera大型风电穿透电力系统的静态无功补偿器(SVC),以缓解风电机组的无功。通过仿真研究,验证了随着风力发电功率因数的变化,SVC对电压控制的有效性。在风力发电渗透率甚至超过2000MW的拉贾斯坦邦西部地区的19母线系统中进行了案例研究,以展示SVC在不同功率因数下的性能,以及有无SVC的电压行为的综合效应。利用mi - power系统分析软件对拉贾斯坦邦部分电力系统中的风力发电进行了建模。对模型系统在各种可能的现场条件下进行的试验结果进行了介绍和讨论。
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引用次数: 6
Flux weakening control algorithm with MTPA control of PMSM drive 基于MTPA控制的永磁同步电动机磁链弱化控制算法
Pub Date : 2014-12-01 DOI: 10.1109/IICPE.2014.7115810
Sukanta Halder, S. P. Srivastava, P. Agarwal
This paper presents flux weakening control algorithm with maximum torque per ampere (MTPA) control for high speed operation of PMSM drive. IPMSM has been used due to the robust construction and extra reluctance torque production as compared to the surface permanent magnet synchronous motor. Based on the speed command the mode of operation will automatically change from constant torque region to flux weakening region. Flux weakening control algorithm has been developed for the purpose of high speed operation. This algorithm has been developed by considering maximum torque per ampere without exceeding the voltage limit and current limit. The performance study has been carried out in terms of MTPA control as well as flux weakening control of IPMSM drive.
针对永磁同步电动机的高速运行,提出了一种基于最大转矩/安培(MTPA)控制的磁链弱化控制算法。与表面永磁同步电机相比,IPMSM由于结构坚固和产生额外的磁阻转矩而被使用。根据转速指令,自动从恒转矩区切换到磁链弱化区。磁链弱化控制算法是为实现高速运行而开发的。该算法考虑了在不超过电压极限和电流极限的情况下每安培最大转矩。对永磁同步电动机的MTPA控制和磁链弱化控制进行了性能研究。
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引用次数: 16
A comparative study of V/f controlled IM using two and three level bus clamped SVM 二、三级总线箝位支持向量机的V/f控制IM的比较研究
Pub Date : 2014-12-01 DOI: 10.1109/IICPE.2014.7229474
N. V. Naik, S. P. Singh
This paper presents a Bus clamped SVM (BCSVM) for two level (2L) and three level (3L) inverter fed induction motor (IM) drive using V/f control. The BCSVM clamps any of the bus in each sector for a given switching period. The V/f control scheme is simulated in the MATLAB environment using both two and three level BCSVM. The operating characteristics of 3LBCSVM inverter fed induction motor drive during starting, step speed, and step load are tested and compared its performance with the 2LBCSVM. The torque and flux distortion of the IM for 3LBCSVM are less with less current and voltage total harmonic distortion (THD). Moreover, the capacitor voltage balance problem is analyzed in three-level diode clamped inverter and obtains the optimum switching states to balance the capacitor voltage of the inverter.
本文提出了一种总线箝位支持向量机(BCSVM),用于两电平(2L)和三电平(3L)逆变馈感应电机(IM)的V/f控制。BCSVM在给定的切换周期内固定每个扇区中的任何总线。利用二级和三级BCSVM在MATLAB环境下对V/f控制方案进行了仿真。测试了3LBCSVM变频感应电机驱动在启动、步进转速和步进负载下的工作特性,并与2LBCSVM进行了性能比较。3LBCSVM的转矩和磁通畸变较小,电流和电压的总谐波畸变(THD)较小。分析了三电平二极管箝位逆变器的电容电压平衡问题,得到了平衡逆变器电容电压的最佳开关状态。
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引用次数: 3
期刊
2014 IEEE 6th India International Conference on Power Electronics (IICPE)
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