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2016 IEEE 7th Power India International Conference (PIICON)最新文献

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Price prediction techniques for residential demand response using support vector regression 基于支持向量回归的住宅需求响应价格预测技术
Pub Date : 2016-11-01 DOI: 10.1109/POWERI.2016.8077427
Shalini Pal, R. Kumar
The bidirectional flow of information among utilities and energy customers can be easily adapted to increase awareness for user's involvement in demand response programs. In demand response programs to improve the interaction between utility and customer, price communication plays an important role. If the future prices for next day can be sent to end consumer, so with the prior knowledge of price, the consumer can schedule their appliances in the same accordance to get less amount in the bill. Therefore, to get prior price information prediction technique comes in the scenario. To enhance price prediction capability, it needs a call from optimization techniques. In this paper, we have proposed the price prediction by support vector regression with genetic algorithm (SVRGA) approach. The simulation result has shown the efficiency of proposed approach and proposed technique is also compared with other existing techniques as artificial neural network (ANN) and linear prediction model (LPM).
公用事业和能源客户之间的双向信息流动可以很容易地适应,以提高用户参与需求响应计划的意识。在需求响应方案中,为了改善电力公司与客户之间的互动,价格沟通起着重要的作用。如果第二天的未来价格可以发送给终端消费者,那么在预先知道价格的情况下,消费者可以按照同样的价格来安排他们的电器,从而获得更少的账单金额。因此,获取先验价格信息的预测技术就出现在这个场景中。为了提高价格预测能力,需要调用优化技术。本文提出了基于遗传算法(SVRGA)的支持向量回归的价格预测方法。仿真结果表明了该方法的有效性,并与人工神经网络(ANN)和线性预测模型(LPM)等现有方法进行了比较。
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引用次数: 6
Power production strategies from renewable energy resources in a hospital campus considering economic aspect 从经济角度考虑医院校园可再生能源发电策略
Pub Date : 2016-11-01 DOI: 10.1109/POWERI.2016.8077282
Ashish Laddha, Abhik Hazra, M. Basu
At present, incorporation of renewable energy resources in distributed generation (DG) is a noble idea. In this work, a strategic optimal distributed power production with renewable energy resources in a typical hospital campus has been proposed considering its economic aspect. The annual operating cost for optimal power operation with demand side management (DSM) has been found. Particle Swarm Optimization with an Aging Leader and Challengers (ALC-PSO) has been used here as solver. The solution has also been compared with classical Particle Swarm Optimization (PSO) to confirm the adaptability of ALC-PSO to solve this type of optimization problem.
目前,将可再生能源纳入分布式发电(DG)是一种崇高的理念。本文从经济角度出发,提出了一种典型医院校园可再生能源分布式发电的战略优化方案。提出了基于需求侧管理(DSM)的最优电力运行的年运行成本。本文采用具有老化前导和挑战者的粒子群优化算法(ALC-PSO)作为求解器。并与经典粒子群算法(PSO)进行了比较,验证了ALC-PSO算法求解该类优化问题的适应性。
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引用次数: 5
Detection of transmission line faults in the presence of solar PV system using stockwell's transform 应用斯托克韦尔变换检测太阳能光伏系统中输电线路故障
Pub Date : 2016-11-01 DOI: 10.1109/POWERI.2016.8077304
Surbhi Thukral, Om Prakash Mahela, B. Kumar
Solar PV system is one of the significant electrical power generation source that have been given focus in the electrical industry in recent years. With the solar PV system in distributed and transmission networks of the utility grid, the behaviour of the system is changed and these units have different effects on the system. One of the major impacts of these units is on the distributed power network protection. This paper presents a Stockwell Transform based approach for the detection of the power system faults in the presence of the solar PV power generation source. The fault detection and diagnosis problems are considered with various types of the power system faults. The voltage during the faulty event extracted and decomposed using Stockwell Transform based multi-resolution to detect and discriminate the power system faults such as line to ground (LG), double line (LL), double to ground (LLG) and three-phase fault involving ground (LLLG). The results have been validated in MATLAB/Simulink environment.
太阳能光伏发电系统是近年来备受电力行业关注的重要发电方式之一。当太阳能光伏系统安装在公用电网的分布式和输电网中时,系统的行为发生了变化,这些单元对系统产生了不同的影响。这些机组的主要影响之一是对分布式电网的保护。提出了一种基于斯托克韦尔变换的太阳能光伏发电系统故障检测方法。针对电力系统各种类型的故障,研究了故障检测与诊断问题。利用基于斯托克韦尔变换的多分辨率提取和分解故障事件期间的电压,对线路对地(LG)、双线对地(LL)、双地(LLG)和三相接地故障(LLLG)等电力系统故障进行检测和判别。结果在MATLAB/Simulink环境下进行了验证。
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引用次数: 7
FPGA based adaptive delta modulated direct matrix converter 基于FPGA的自适应增量调制直接矩阵变换器
Pub Date : 2016-11-01 DOI: 10.1109/POWERI.2016.8077275
I. Khan, Anshul Agarwal
This paper proposes a single phase direct matrix converter employing Insulated-gate bipolar transistors. The output frequency of the converter has been varied over a wide range. The Adaptive Delta Modulation (ADM) technique is used here, in order to minimize the harmonics. The proposed converter not only works as a Cyclo-inverter (CI) but also as a Cyclo-converter (CC). The performance analysis is done using output voltage and associated total harmonic distortion (THD) waveforms on MATLAB/Simulink platform for different mode of operations. Simulated results for CI, show that the minimum THD is approximately 3.3 % at output frequency, f0 = 1 kHz whereas it is less than 1 % at f0 = 100 Hz. For CC, the observed THD values are 0.93, 0.92 % at f0 = 25 and 5 Hz respectively. The experimental set-up for the converter circuit has also been developed using VHDL and FPGA kit, in order to verify the simulated results. The experimental results are in the close vicinity and conformity to the simulated observations.
本文提出了一种采用绝缘栅双极晶体管的单相直接矩阵变换器。变频器的输出频率可以在很宽的范围内变化。自适应增量调制(ADM)技术在这里使用,以尽量减少谐波。该变换器不仅可以作为环逆变器(CI),也可以作为环变换器(CC)。在MATLAB/Simulink平台上对不同工作模式下的输出电压和相关的总谐波失真(THD)波形进行性能分析。CI的模拟结果表明,在输出频率f0 = 1 kHz时,最小THD约为3.3%,而在f0 = 100 Hz时,最小THD小于1%。对于CC,在f0 = 25和5hz时观测到的THD值分别为0.93%、0.92%。利用VHDL和FPGA开发了转换电路的实验装置,以验证仿真结果。实验结果与模拟观测结果吻合较好。
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引用次数: 1
Modelling of neutral point clamped based VSC-HVDC system 基于中性点箝位的VSC-HVDC系统建模
Pub Date : 2016-11-01 DOI: 10.1109/POWERI.2016.8077217
D. Saini, Shagufta Khan, S. Bhowmick
This work shows the performance of Voltage Source Converter (VSC) based High Voltage DC (HVDC) transmission system. A 200 MVA, ±100 kV link is modeled between two identical asynchronous AC systems. The system studies are based on three level neutral point clamped (NPC) converters. Current controlled scheme is used for active and reactive power control. One converter is operated in DC voltage control mode, while the other operated in Active and Reactive power (PQ) control mode. The results are carried out in MATLAB software. The smoothness of DC voltages shows the feasibility of the work.
研究了基于电压源变换器(VSC)的高压直流输电系统的性能。在两个相同的异步交流系统之间建立了一个200 MVA,±100 kV的链路。系统研究是基于三电平中性点箝位(NPC)转换器。有功和无功控制采用电流控制方案。一个变换器工作在直流电压控制模式下,而另一个工作在有功和无功(PQ)控制模式下。结果在MATLAB软件中进行了验证。直流电压的平稳性表明了工作的可行性。
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引用次数: 1
A novel DG allocation method for power loss reduction in radial distribution system 一种新的径向配电系统减损DG分配方法
Pub Date : 2016-11-01 DOI: 10.1109/POWERI.2016.8077472
Sarfaraz Nawaz, A. Bansal, M. P. Sharma
The objective of this paper is to minimize active power losses of radial distribution system by optimal Distributed Generations (DGs) allocation. The significance of optimal DG allocation is to offer the appropriate position and sizes of DG units. A novel constant, Power Voltage Sensitivity Constant (PVSC), has been proposed in this paper to solve the problem. The type-I DG, which gives only active power, is considered here. The level of DG penetration is considered in a range of 0–50%. The achievability of the technique has been verified on 69 bus standard system at different load level. The results are encouraging when compared with latest approach.
本文的研究目标是通过优化分配分布式电源,使径向配电系统的有功损耗最小。DG优化配置的意义在于提供DG单元的合适位置和大小。为了解决这一问题,本文提出了一种新的常数——功率电压敏感常数(PVSC)。这里考虑的是只提供有功功率的i型DG。DG渗透水平被认为在0-50%的范围内。在不同负载水平的69总线标准系统上验证了该技术的可实现性。与最新的方法相比,结果令人鼓舞。
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引用次数: 9
A novel bidirectional Z-source DC circuit breaker for DC microgrids 用于直流微电网的新型双向z源直流断路器
Pub Date : 2016-11-01 DOI: 10.1109/POWERI.2016.8077342
M. Aslam, N. Zaffar
A novel bidirectional dc circuit breaker topology is investigated for operation in dc microgrids to help in protection schemes against short circuit faults. When a short-circuit fault occurs, the proposed topology utilizes a Z-source breaker circuit to naturally commutate off the SCR by diverting the current and reducing the current to zero through the SCR, thus avoiding circuit breaking under high current conditions. As compared to existing unidirectional dc circuit breakers, the proposed bidirectional z-source breaker works in applications that require bi-directional power flow between different nodes of microgrids. The analysis, operation and simulation of the new bi-directional breaker topology is presented. The results are obtained for comparative analysis through simulation and validated through hardware testing in the lab.
研究了一种新的双向直流断路器拓扑结构,用于直流微电网的短路故障保护方案。当发生短路故障时,所提出的拓扑利用z源断路器电路通过分流电流并将电流通过可控硅降至零来自然地换流到可控硅,从而避免了在高电流条件下的电路断开。与现有的单向直流断路器相比,本文提出的双向z源断路器适用于需要微电网不同节点之间双向潮流的应用。对新型双向断路器拓扑结构进行了分析、运行和仿真。通过仿真得到了对比分析的结果,并通过实验室硬件测试进行了验证。
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引用次数: 12
An improved P&O MPPT algorithm for single stage three-phase grid integrated solar PV system 一种改进的单级三相并网太阳能光伏系统P&O MPPT算法
Pub Date : 2016-11-01 DOI: 10.1109/POWERI.2016.8077402
A. Singh, Ikhlaq Hussain, Bhim Singh
This work presents an improved perturb and observe (P&O) algorithm based MPPT (Maximum Power Point Tracking) for a single stage solar photovoltaic (PV) array integrated with a three phase grid. Due to simple implementation and efficient tracking, the P&O approach of extracting maximum power from a PV array is very popular and efficient tracking technique among all MPPT techniques. However, the major pitfalls of this technique are that P&O MPPT is affected from drift, the outcome of drift occurring is much disapproving when there is a quick rate of increment in insolation. Drift takes place because of erroneous judgments taken by traditional P&O technique at the initial step alteration in voltage reference throughout the rise in insolation. An improved P&O algorithm is proposed here to improve the drift issue by deploying the details of variation in PV current (ΔDLIpv) to make the judgment in extension to the variation in PV power (ΔDLPpv) and variation in PV voltage (ΔDLVpv). In this PV system, a VSI (Voltage Source Inverter) and three phase grid are used. In a three phase distribution feeder network for indemnify, the quality of power as per an IEEE-519 standard on harmonics, it satisfies the power quality norms. So, for availing the real power feeding to the grid and to sustain the terminal voltage constant at the PCC (Point of Common Coupling) with sinusoidal grid voltages and grid currents, this system works well simultaneously with improved performance of P&O technique. The Matlab/Simulink is used for simulation and modelling of proposed system and the behavior of proposed MPPT algorithm has been examined for various insolation levels and different environmental situations on an experimental system which is established in the laboratory
提出了一种改进的基于扰动和观测(P&O)算法的三相电网单级太阳能光伏(PV)阵列最大功率点跟踪(MPPT)算法。从光伏阵列中提取最大功率的P&O方法由于实现简单、跟踪高效,是目前最大功率跟踪技术中非常流行的一种高效跟踪技术。然而,该技术的主要缺陷是P&O MPPT受到漂移的影响,当日晒增加速度很快时,漂移发生的结果是非常不赞成的。由于传统的P&O技术在初始阶段参考电压的变化过程中做出了错误的判断,导致了漂移的发生。本文提出一种改进的P&O算法,利用PV电流变化(ΔDLIpv)的细节,对PV功率变化(ΔDLPpv)和PV电压变化(ΔDLVpv)进行扩展判断,从而改善漂移问题。该系统采用了电压源逆变器(VSI)和三相电网。在为补偿的三相配电馈线网络中,电能质量按照IEEE-519的谐波标准,满足电能质量规范。因此,为了利用电网的实际供电,并在正弦电网电压和电网电流下维持PCC(共联轴点)的终端电压恒定,该系统在改进P&O技术性能的同时运行良好。使用Matlab/Simulink对所提出的系统进行仿真和建模,并在实验室建立的实验系统上检查了所提出的MPPT算法在各种日照水平和不同环境情况下的行为
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引用次数: 16
Brushless induction excited synchronous motor (BinSyM): A new motor for high power applications 无刷感应励磁同步电机(BinSyM):一种大功率应用的新型电机
Pub Date : 2016-11-01 DOI: 10.1109/POWERI.2016.8077441
C. Chakraborty, Yalla Tirumala Rao, Haimanti Bhattacherjee
This paper introduces a new motor suitable for high power applications. Overall, the machine is brush-less and magnet-less and therefore having special merit for use in places where maintenance is crucial. This will be attractive in areas such as safety critical systems as well as off-shore wind turbines. The main motor-torque is produced through the locking of stator and rotor poles as in the synchronous machine, whereas the field-excitation is provided by utilizing the principle of induction. Thus, a synchronous and an induction machine are embedded in the same structure to make this happen. The stator and rotor house two windings each, one for the synchronous and another for the corresponding induction machines. These are wound for different number of poles to avoid any magnetic coupling. The rotor current of the induction machine is rectified through a rotating rectifier to feed the required dc current in the field winding of the synchronous machine. Controlled excitation can thus be produced avoiding use of brush and magnets. For the present investigation a 2-pole synchronous and 6-pole induction combination is considered, however the principle of operation is valid and work well for other combinations. A possible layout of the machine is presented and steady-state analysis has been carried out to select the suitable operating zone. Vector control algorithms for excitation machine and main synchronous machine have been reported. MATLAB/Simulink based simulation results are presented to clearly demonstrate the effectiveness and advantage of the proposed drive system.
本文介绍了一种适用于大功率应用的新型电机。总的来说,机器是无刷和无磁铁,因此有特殊的优点,在地方使用的维护是至关重要的。这将在安全关键系统以及海上风力涡轮机等领域具有吸引力。与同步电机一样,电动机的主转矩是通过定子和转子极的锁紧产生的,而励磁是利用感应原理提供的。因此,同步电机和感应电机被嵌入到同一结构中以实现这一目标。定子和转子各有两个绕组,一个用于同步电机,另一个用于相应的感应电机。这些是绕不同数量的极,以避免任何磁耦合。感应电机的转子电流通过旋转整流器整流,在同步电机的励磁绕组中供给所需的直流电。因此,可以产生受控励磁,避免使用电刷和磁铁。本研究考虑的是2极同步和6极感应组合,但其工作原理是有效的,适用于其他组合。提出了一种可能的机器布局,并进行了稳态分析,以选择合适的操作区域。已经报道了励磁机和主同步机的矢量控制算法。基于MATLAB/Simulink的仿真结果清楚地证明了所提出的驱动系统的有效性和优越性。
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引用次数: 3
A novel control scheme for PMBLDC drives 一种新的永磁无刷直流驱动器控制方案
Pub Date : 2016-11-01 DOI: 10.1109/POWERI.2016.8077466
U. Kalla, K. Rathore
This paper aimed at a power factor correction (PFC) based novel speed control for standalone generator fed PMBLDC drives. The scheme is highly suitable for obtaining unity power factor operation in standalone generator fed PMBLDC drive, since the reference current signal in this control scheme is estimated using a frequency adaptive unit template block. The system frequency in any standalone generating system like diesel generator (DG) sets and small hydro power generation systems, is depends on loading condition of the generator. Therefore the system frequency of such system fluctuates under varying load conditions. The proposed frequency adaptive unit template based scheme is essentially required to achieve the power factor correction operation in standalone generation driven PMBLDC drives. Therefore a new PFC scheme is proposed for PMBLDC drive fed by a single phase standalone power generating system.
本文研究了一种基于功率因数校正(PFC)的独立发电机供电PMBLDC驱动器的新型速度控制方法。由于该控制方案采用频率自适应单元模板块估计参考电流信号,因此该方案非常适合于在独立发电机供电的PMBLDC驱动器中获得单位功率因数运行。在任何独立发电系统中,如柴油发电机组和小型水力发电系统,其系统频率取决于发电机的负载状况。因此,该系统的系统频率在不同的负载条件下波动。提出的基于频率自适应单元模板的方案是实现独立发电驱动PMBLDC驱动器功率因数校正操作所必需的。为此,提出了一种新的单相独立发电系统驱动PMBLDC的PFC方案。
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引用次数: 2
期刊
2016 IEEE 7th Power India International Conference (PIICON)
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