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2020 3rd International Conference on Energy, Power and Environment: Towards Clean Energy Technologies最新文献

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Experimental Validation of Improved Power Quality in Unidirectional Multipulse AC - DC Converters due to Higher Pulse Number 高脉冲数改善单向多脉冲交直流变换器电能质量的实验验证
A. N. Arvindan
Deployment of ac-dc converters invariably entails injection of current harmonics into the ac utility; and voltage ripple and hence, harmonics on the dc side. Multipulse unidirectional ac-dc converters are essentially rectifiers that have a high pulse number. The correlation of pulse number of an ac-dc converter and its power quality parameters on both the ac and dc sides is well established, however, in this paper the mathematical expressions of the instantaneous line current and load voltage and hence, their harmonic constituents, have been derived from the first principles for the most fundamental topologies and have been extrapolated to determine those of the higher pulse ones. This is important in the design of current harmonic and voltage ripple filters. Also, the correlation of pulse number with harmonic current distortion is theoretically established and experimentally validated with data from the three-, six- and twelve-pulse rectifiers.
交直流变流器的部署总是需要将电流谐波注入交流公用事业;电压纹波和直流侧的谐波。多脉冲单向交直流变换器本质上是具有高脉冲数的整流器。交直流变换器的脉冲数与其交流和直流两侧的电能质量参数的相关性已经很好地建立起来了,然而,本文从最基本拓扑的第一原理推导出了瞬时线电流和负载电压的数学表达式,从而推导出了它们的谐波成分,并通过外推来确定更高脉冲的谐波成分。这在电流谐波滤波器和电压纹波滤波器的设计中很重要。从理论上建立了脉冲数与谐波电流畸变的相关性,并用三脉冲、六脉冲和十二脉冲整流器的数据进行了实验验证。
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引用次数: 0
An Ultra-Fast Master-Slave ADALINE for Hybrid Active Power Filter including Photovoltaic System 包含光伏系统的混合有源电力滤波器的超快速主从ADALINE
Priyabrat Garanayak, K. Panda, R. T. Naayagi, G. Panda
This paper proposes a unique two-fold adaptive linear neural network (ADALINE) for extracting the sum of harmonics and reactive currents from the load currents in a three-phase hybrid power filter (HPF) network. The HPF linked with photovoltaic (PV) system and DC-DC boost converter to extract maximal power using maximum power point tracking (MPPT). The proposed detection algorithm for HPF is entitled as Master-Slave ADALINE (MS ADALINE), which is based on parallel adaptive filter theory. The Slave-ADALINE follows fixed and large step-size least mean square (LMS) algorithm for weight vector correction. During transients, this filter plays an important job. However, Master-ADALINE selects adaptable step-size LMS learning rule for weight vector adaptation. At last, the local averages of the squared errors of both the ADALINE's are worked out and fed to the decision controller circuit. This circuit equates the two magnitudes, and revises the Master-ADALINE weight vector and step-size parameter, accordingly. This recommended scheme boosts the convergence speed and improves tracking accurateness. The efficacy of MS ADALINE is proven by comprehensive simulation and experimental survey.
本文提出了一种独特的双重自适应线性神经网络(ADALINE),用于从三相混合电力滤波器(HPF)网络的负载电流中提取谐波和无功电流之和。HPF与光伏系统和DC-DC升压变换器相连接,利用最大功率点跟踪(MPPT)提取最大功率。提出了一种基于并行自适应滤波理论的HPF检测算法,称为主从ADALINE (MS ADALINE)。Slave-ADALINE采用固定大步长最小均方(LMS)算法进行权向量校正。在瞬变过程中,该滤波器起着重要的作用。Master-ADALINE选择自适应步长LMS学习规则进行权向量自适应。最后,计算出两种ADALINE的平方误差的局部平均值,并将其输入决策控制器电路。该电路将两个幅度相等,并相应地修改Master-ADALINE权重向量和步长参数。该方案提高了收敛速度,提高了跟踪精度。通过综合仿真和实验调查,验证了MS ADALINE的有效性。
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引用次数: 0
Design and Control of PV-UPQC Using Variable Leaky LMS Based Algorithm for Power Quality Enhancement 基于可变泄漏LMS算法的PV-UPQC电能质量增强设计与控制
Pragnyashree Ray, P. K. Ray
The proposed work deals with the multiple power quality (PQ) issues by the proper operation and effective control of photovoltaic (PV) fed unified power quality conditioner (UPQC) by using soft computing technique. Variable leaky least mean square (VLLMS) algorithm is neural network based soft computing technique which provides faster convergence rate without drifting the weight parameter beyond the limit. Here, extraction process of fundamental component for both series and shunt compensators of the UPQC is based on VLLMS algorithm. In this method extraction of reference signals for switching of voltage source converters (VSC) of series and shunt compensators is carried out by updating the weights in an iterative manner. The shunt compensator maintains DC link voltage, compensates reactive power demand of load and mitigates harmonics in the current due to the involvement of non-linear load. The series compensator maintains the voltage level at the load terminal and eliminates distortions in voltage waveform due to sag/swell and harmonics. The functionality of the proposed system is investigated by using MATLAB/Simulink.
本文采用软计算技术,通过对光伏馈电统一电能质量调节器(UPQC)的合理运行和有效控制,解决了多种电能质量问题。可变泄漏最小均方(VLLMS)算法是一种基于神经网络的软计算技术,它在保证权值参数不漂移的情况下具有较快的收敛速度。其中,UPQC串联补偿器和并联补偿器基元分量的提取过程均基于VLLMS算法。该方法通过迭代更新权值的方式提取串联和并联补偿器电压源变换器开关参考信号。并联补偿器维持直流链路电压,补偿负载的无功需求,并减轻由于非线性负载的参与而产生的电流谐波。串联补偿器保持负载端的电压水平,并消除由于凹陷/膨胀和谐波引起的电压波形畸变。利用MATLAB/Simulink对系统的功能进行了研究。
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引用次数: 2
Novel 13-level Asymmetrical Photovoltaic Inverter with Reduced switches 新型13电平非对称减开关光伏逆变器
Madan Kumar Das, Parusharamulu Buduma, K. Jana, Sukumar Mishara
The demand of Photovoltaic (PV) connected multilevel Inverter for higher power applications in industries and home has been increasing rapidly. This paper proposed a new asymmetrical multilevel inverter (AMLI) topology, which can reduce the switches for PV application. The proposed 13-level Inverter, only eight power electronics switches are uses to generate 13-level of output voltages. The simulation, as well as experimental results of the inverter voltage and current at RL load, are presented. The proposed Inverter validity is tested with MATLAB/SIMULINK and real-time simulator Dspace (DS1103) and implement laboratory prototype hardware.
光伏(PV)连接的多电平逆变器在工业和家庭中的高功率应用需求迅速增长。本文提出了一种新的非对称多电平逆变器(AMLI)拓扑结构,可以减少光伏应用中的开关。提出的13级逆变器,仅使用8个电力电子开关产生13级输出电压。给出了逆变器在RL负载下的电压和电流的仿真和实验结果。利用MATLAB/SIMULINK和实时仿真器Dspace (DS1103)对逆变器的有效性进行了测试,并实现了实验室样机硬件。
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引用次数: 0
Robust frequency control of hybrid power system with EV and HP EV - HP混合动力系统的鲁棒频率控制
Debidasi Mohanty, S. Panda
The aim of the paper is to propose a noble load frequency control (LFC) scheme for hybrid power system (HPS). The hybrid power system owing to its intermittent generating sources always needs a robust load frequency controller for its reliable operation. In this paper electric vehicle and heat pump are incorporated with the HPS for frequency control. Use of customer appliances like electric vehicle (EV) and heat pump (HP) eventually reduces the use of independent energy storage units for the HPS. The power control of HP and charging/discharging of EV helps in real power management of the HPS which ultimately helps in frequency control. A recently proposed harris' hawks optimization (HHO) technique is utilized for tuning of the controllers parameters. Two controllers are taken into consideration i.e. PID and fuzzy PID controller for evaluation of frequency control in HPS. The fuzzy aided PID (FPID) controller shows superior performance against different operating conditions than PID controller.
本文的目的是提出一种适用于混合动力系统(HPS)的负载频率控制方案。混合电力系统由于其发电源的间歇性,需要一个鲁棒的负荷频率控制器来保证其可靠运行。本文将电动汽车和热泵结合到HPS中进行频率控制。使用客户设备,如电动汽车(EV)和热泵(HP),最终减少了HPS独立储能单元的使用。HP的功率控制和电动汽车的充放电控制有助于HPS的真正电源管理,最终有助于频率控制。利用最近提出的哈里斯霍克优化(HHO)技术对控制器参数进行整定。采用PID和模糊PID两种控制器对HPS系统的频率控制进行评价。模糊辅助PID (FPID)控制器在不同工况下均表现出优于PID控制器的性能。
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引用次数: 0
Adaptive Kernel Width fourth order Maximum Correntropy based VSC control of grid-tied PV-Battery System 基于自适应核宽四阶最大熵的并网光伏电池系统VSC控制
Mukul Chankaya, Ikhlaq Hussain, Aijaz Ahmad
The presented paper reports the adaptive kernel width fourth-order maximum correntropy criteria (AKWFOMCC) based voltage source converter (VSC) control for 3-phase 3-wire grid-tied dual-stage PV-battery system. The presented control executes numerous objectives, i.e., load balancing, power balancing, reactive power compensation, and maintains the unity power factor (UPF). The system is observed under the influence of several deliberately induced dynamic conditions, i.e., insolation variation, unbalanced load, unbalanced grid-voltage and specified power mode. During various dynamic induced conditions, the system behaviour is found adequate as per IEEE519 standards in MATLAB simulation environment.
本文报道了基于自适应核宽四阶最大熵准则(AKWFOMCC)的三相三线并网双级光伏电池系统电压源变换器(VSC)控制。该控制实现了负载平衡、功率平衡、无功补偿等多个目标,并保持了单位功率因数(UPF)。在日照变化、负载不平衡、电网电压不平衡和规定的电源模式等几种人为诱导的动态条件下观察系统。在各种动态诱导条件下,系统在MATLAB仿真环境下的性能符合IEEE519标准。
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引用次数: 0
Review of Factors Affecting Current Sharing and Techniques for Current Balancing in Paralleled Wide Bandgap Devices 影响并联宽禁带器件电流共享的因素及电流平衡技术综述
Gaurav Yadav, S. Nag
MOSFETs are paralleled in a converter in order to enhance its current handling capacity which in turn results in reduced conduction losses and increased efficiency. However, paralleling MOSFETs and ensuring equal current sharing among them is difficult to achieve. The paper identifies the parameters causing current unbalance among parallel devices and uses LT-Spice simulation to study their effects for GaN HEMTs. Further, these simulation results are matched with experimental results for two paralleled GaN HEMTs. The challenges in paralleling of Wide bandgap devices such as GaN and SiC are also presented. A detailed review of various active and passive current balancing techniques for paralleling of SiC and GaN FETs is presented.
mosfet在变换器中并联,以增强其电流处理能力,从而减少导通损耗并提高效率。然而,并联mosfet并保证它们之间的电流均匀分布是很难实现的。本文确定了导致并联器件之间电流不平衡的参数,并利用LT-Spice模拟研究了它们对GaN hemt的影响。此外,模拟结果与两个并联GaN hemt的实验结果相吻合。同时提出了GaN和SiC等宽带隙器件的并行化所面临的挑战。详细介绍了用于SiC和GaN场效应管并联的各种有源和无源电流平衡技术。
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引用次数: 4
Dynamic management of electric vehicle charging station 电动汽车充电站动态管理
Vartika Pandey, Prem Prakash
This paper shows the charging of electric vehicles and forms a link between storage devices, electric vehicles and grid and perform simulation based on the power obtained by the grid. Charging and discharging of EV is to be shown, which is implemented by MATLAB Simulation. Through that we obtain results and it can be seen that smart charging is the best suitable curve which optimizes EV scheduling and best voltage profile is obtained. In the first phase Electric Vehicle simulation model is run and in the second phase coding is being done by the application of Grey wolf Optimization and Forward/ Backward load flow algorithm.
本文展示了电动汽车的充电过程,形成了存储设备、电动汽车和电网之间的联系,并基于电网获得的电力进行了仿真。对电动汽车进行充放电,并通过MATLAB仿真实现。结果表明,智能充电是优化电动汽车调度的最佳适合曲线,得到了最佳电压分布图。第一阶段运行电动汽车仿真模型,第二阶段应用灰狼优化算法和正向/反向潮流算法进行编码。
{"title":"Dynamic management of electric vehicle charging station","authors":"Vartika Pandey, Prem Prakash","doi":"10.1109/ICEPE50861.2021.9404527","DOIUrl":"https://doi.org/10.1109/ICEPE50861.2021.9404527","url":null,"abstract":"This paper shows the charging of electric vehicles and forms a link between storage devices, electric vehicles and grid and perform simulation based on the power obtained by the grid. Charging and discharging of EV is to be shown, which is implemented by MATLAB Simulation. Through that we obtain results and it can be seen that smart charging is the best suitable curve which optimizes EV scheduling and best voltage profile is obtained. In the first phase Electric Vehicle simulation model is run and in the second phase coding is being done by the application of Grey wolf Optimization and Forward/ Backward load flow algorithm.","PeriodicalId":250203,"journal":{"name":"2020 3rd International Conference on Energy, Power and Environment: Towards Clean Energy Technologies","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115133712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
FOSMC Control Mechanism For Solar and Battery based Microgrid System 基于太阳能和电池的微电网系统FOSMC控制机制
Silar Sahib Shaik, S. Gudey
This work presents the performance of fractional order sliding mode control (FOSMC) for a microgrid system (MG) consisting of solar and a battery feeding different loads. The proposed controller is used to track effectively the desired output voltage during changeover from solar to battery system. Using state space model of a voltage source inverter (VSI), the control input is obtained. The maximum power from the Solar PV system is harnessed using Perturb and Observe (P&O) MPPT algorithm. To step up the voltage of 200 V generated from the PV panel to 400 V as input to the 2.5 kVA rated VSI, a boost converter is utilized. PWM switching pulses are generated to the IGBT switches operating at 10 kHz for effective tracking of the reference load voltages. A 2.5 kW 0.8 pf lagging load and a single phase diode bridge rectifier as non-linear load is considered to be fed from the MG system. The controller's performance in terms of steady state error, total harmonic distortion (THD), settling time is studied during the system operation. A comparison with the classical SMC is observed through its control energy is also presented. The control energy required in FOSMC for a stable system operation is 8 times less than that of SMC is realized. It is observed that FOSMC performs well with less steady state error of 1.32 %, THD of 0.135 % and settling time of 0.16 ms. Simulations are performed in PSCADv4.6.
本文介绍了由太阳能和电池组成的微电网系统(MG)的分数阶滑模控制(FOSMC)的性能。所提出的控制器用于有效地跟踪从太阳能系统到电池系统转换时所需的输出电压。利用电压源逆变器(VSI)的状态空间模型,得到控制输入。太阳能光伏系统的最大功率利用了扰动和观测(P&O) MPPT算法。为了将光伏面板产生的200v电压升压到400v,作为2.5 kVA额定VSI的输入,使用升压转换器。PWM开关脉冲产生到工作在10khz的IGBT开关,用于有效跟踪参考负载电压。考虑从MG系统输入一个2.5 kW 0.8 pf的滞后负载和一个单相二极管桥式整流器作为非线性负载。从稳态误差、总谐波失真(THD)、稳定时间等方面研究了控制器在系统运行中的性能。并通过其控制能量与经典SMC进行了比较。FOSMC实现系统稳定运行所需的控制能量比SMC少8倍。结果表明,FOSMC的稳态误差为1.32%,THD为0.135%,稳定时间为0.16 ms。仿真在PSCADv4.6中进行。
{"title":"FOSMC Control Mechanism For Solar and Battery based Microgrid System","authors":"Silar Sahib Shaik, S. Gudey","doi":"10.1109/ICEPE50861.2021.9404515","DOIUrl":"https://doi.org/10.1109/ICEPE50861.2021.9404515","url":null,"abstract":"This work presents the performance of fractional order sliding mode control (FOSMC) for a microgrid system (MG) consisting of solar and a battery feeding different loads. The proposed controller is used to track effectively the desired output voltage during changeover from solar to battery system. Using state space model of a voltage source inverter (VSI), the control input is obtained. The maximum power from the Solar PV system is harnessed using Perturb and Observe (P&O) MPPT algorithm. To step up the voltage of 200 V generated from the PV panel to 400 V as input to the 2.5 kVA rated VSI, a boost converter is utilized. PWM switching pulses are generated to the IGBT switches operating at 10 kHz for effective tracking of the reference load voltages. A 2.5 kW 0.8 pf lagging load and a single phase diode bridge rectifier as non-linear load is considered to be fed from the MG system. The controller's performance in terms of steady state error, total harmonic distortion (THD), settling time is studied during the system operation. A comparison with the classical SMC is observed through its control energy is also presented. The control energy required in FOSMC for a stable system operation is 8 times less than that of SMC is realized. It is observed that FOSMC performs well with less steady state error of 1.32 %, THD of 0.135 % and settling time of 0.16 ms. Simulations are performed in PSCADv4.6.","PeriodicalId":250203,"journal":{"name":"2020 3rd International Conference on Energy, Power and Environment: Towards Clean Energy Technologies","volume":"334 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115224427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Modeling of Predictable Variations in Multi-Time Instant Ambient Temperature Time Series 多时间瞬时环境温度时间序列可预测变化的建模
Udith Shyamsukha, Nimish Jain, T. Chakraborty, B. Prusty, Kishore Bingi
This paper effectively devised a novel approach to characterize the predictable variations in a multi-time instant ambient temperature time series. A multiple linear regression model is used to capture the annual predictable variations accurately. The clues for predictable variations upon detailed analysis of multi-time instant daily time resolution ambient temperature data led to the invention of a set of theoretical relevant deterministic regressors forming a reducing order model. A detailed result analysis has established that the proposed model is a suitable candidate for multi-time instant daily time step data and can be extended for the risk assessment of system analysis that accounts for the temperature effect. Further, probabilistic forecasting using regression-based methods can easily combat the above-limited number of theoretical relevant regressors for decent interval forecasts. The proposed model's effectiveness is analyzed using historical ambient temperature records collected from three distinct places in India.
本文有效地设计了一种新的方法来表征多时段瞬时环境温度时间序列的可预测变化。采用多元线性回归模型准确地捕捉了年可预测变化。通过对多时间即时日分辨率环境温度数据的详细分析,发现了可预测变化的线索,从而发明了一套理论相关的确定性回归量,形成了降阶模型。详细的结果分析表明,该模型适用于多时段即时日时间步长数据,并可推广到考虑温度效应的系统分析风险评估。此外,使用基于回归的方法进行概率预测可以很容易地对抗上述有限数量的理论相关回归量,以获得良好的区间预测。利用从印度三个不同地方收集的历史环境温度记录,分析了所提出模型的有效性。
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引用次数: 1
期刊
2020 3rd International Conference on Energy, Power and Environment: Towards Clean Energy Technologies
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