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2020 IEEE 9th Power India International Conference (PIICON)最新文献

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Design and Testing of Frequency Adaptive Zero- Crossing Detector as a Synchronizing Technique 频率自适应过零检测器同步技术的设计与测试
Pub Date : 2020-02-01 DOI: 10.1109/PIICON49524.2020.9113009
H. Saxena, Alka Singh, J. N. Rai
In this paper, a simple and efficient technique has been proposed for estimating the synchronizing signals. The proposed method is based on the zero-crossing detection technique. The proposed method works very well even when with variation in the frequency of the input signal while the conventional Zero Crossing Detector (ZCD) fails. The proposed technique shows a very fast response in case of phase change, distorted signal and frequency change. The technique has been simulated in MATLAB/Simulink environment and also tested experimentally. The necessary simulation and experimental results have been shown for the verification of the proposed technique.
本文提出了一种简单有效的同步信号估计方法。该方法基于过零检测技术。传统的过零检测器(ZCD)失效时,即使输入信号的频率发生变化,该方法也能很好地工作。该方法在相位变化、失真信号和频率变化的情况下具有较快的响应速度。该技术在MATLAB/Simulink环境下进行了仿真,并进行了实验验证。为了验证所提出的技术,给出了必要的仿真和实验结果。
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引用次数: 4
A Novel HCC scheme to reduce switching loss and harmonics in 1-phase H-bridge inverter 一种降低单相h桥逆变器开关损耗和谐波的新型HCC方案
Pub Date : 2020-02-01 DOI: 10.1109/PIICON49524.2020.9113066
Asim Kumar Dey, T. Mohapatra, K. K. Mohapatra
A novel hysteresis current control (HCC) scheme for 1-phase H-bridge (full bridge) DC to AC converter is suggested here. The suggested HCC consolidates the benefits of both bipolar and unipolar switching scheme. The suggested HCC provides low switching frequency as unipolar switching scheme and also reduces sub and inter harmonics of the current as conventional switching scheme. It also reduces the higher order harmonics which may cause electromagnetic interference (EMI). The suggested control technique is compared with the conventional HCC, double band HCC and P.A. Dahono. HCC. The simulation results of the suggested converter operation and harmonic analysis are projected in the article.
本文提出了一种适用于单相h桥(全桥)直流-交流变换器的磁滞电流控制方案。建议的HCC巩固了双极和单极转换方案的好处。建议的HCC提供低开关频率作为单极开关方案,也降低了电流的次谐波和间谐波作为传统的开关方案。它还减少了可能引起电磁干扰(EMI)的高次谐波。将所建议的控制方法与常规HCC、双带HCC和P.A. Dahono进行比较。肝细胞癌。文中给出了所建议变流器运行和谐波分析的仿真结果。
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引用次数: 7
An Improved Grid Synchronization Method of Grid-Interactive Power Converter System During Distorted Grid Conditions 畸变电网条件下一种改进的电网-交互变换器系统同步方法
Pub Date : 2020-02-01 DOI: 10.1109/PIICON49524.2020.9112941
S. K., B. Babu
In recent years, integration of renewable energy systems (RES) into the electrical grid has acquired the attention of researchers across the globe. Grid parameters such as frequency, voltage and phase angle must be continuously monitored to overcome the problem of synchronization, as gridside converters usually interact with the electrical grid. In this paper, an enhanced sliding Goertzel discrete Fourier transform (SGDFT) based phase locked loop (PLL) for grid synchronization of grid-interactive power converter system was proposed. With the proposed enhanced SGDFT PLL based frequency estimation, a robust frequency tracking capability with a very fast transient response under distorted grid conditions are achieved. The complete analytical model of Proposed PLL is analyzed and compared with existing PLLs such as Enhanced Prefilter Moving Average Filter Type 2 PLL (EPMAF Type 2 PLL), Harmonics Interharmonics DC Offset PLL (HIHDO PLL), SGDFT PLL. The proposed work has been analyzed in MATLAB/Simulink® environment and the obtained results are suitable for harmonic mitigation and DC offset rejection. Finally, the Hardware in Loop (HIL) simulation of different PLLs are investigated by dSPACE 1104 environment to verify the effectiveness of the proposed study.
近年来,可再生能源系统(RES)并网问题引起了全球研究人员的广泛关注。由于电网侧变流器通常与电网相互作用,因此必须对频率、电压和相角等电网参数进行连续监测,以克服同步问题。提出了一种基于增强滑动戈泽尔离散傅立叶变换(SGDFT)的电网同步锁相环(PLL)。利用所提出的基于增强型SGDFT锁相环的频率估计,实现了在扭曲网格条件下具有快速瞬态响应的鲁棒频率跟踪能力。分析了所提锁相环的完整分析模型,并与现有锁相环如增强型预滤波移动平均滤波器2型锁相环(EPMAF Type 2 PLL)、谐波间谐波直流偏置锁相环(HIHDO PLL)、SGDFT锁相环进行了比较。在MATLAB/Simulink®环境下对所提出的工作进行了分析,所得结果适用于谐波抑制和直流偏置抑制。最后,在dSPACE 1104环境下对不同锁相环进行了硬件在环(HIL)仿真,验证了所提研究的有效性。
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引用次数: 2
Analysis of Plug-in Electric Vehicles Participating in Primary Frequency Control of Hydrothermal Power System at Varying Generation Schedule 插电式电动汽车参与变发电计划水热发电系统一次变频控制分析
Pub Date : 2020-02-01 DOI: 10.1109/PIICON49524.2020.9113058
Mathews Thomas, S. R., Deepak M
The global electric-vehicle market is amped up and still on the rise. Significant reduction in dependence on fossil fuels and reduction in hazardous emissions are contributing to the higher penetration of electric vehicles. The fast active power controllability make Plug-in Electric Vehicles (PEV) an ideal contributor in the frequency regulation of power system. Power system loads are varying in nature and will force partial loading of conventional generating units. The turbine time constant of conventional generating units will change as per its generation schedule and it affects the power contribution of these generating units during frequency events. An aggregate Plug-in Electric Vehicle model is implemented in the considered two-area hydrothermal power system so as to respond to the power variations at different generation schedules of hydrothermal system. Hydrothermal system parameters are optimized using grey wolf optimization which is one of the recent heuristic algorithms employing integral squared error (ISE) based fitness function.
全球电动汽车市场正在蓬勃发展,而且仍在上升。对化石燃料依赖的显著减少和有害排放的减少有助于提高电动汽车的渗透率。插电式电动汽车(PEV)具有快速的有功可控性,是电力系统频率调节的理想贡献者。电力系统负荷的性质是变化的,并将迫使传统发电机组的部分负荷。常规发电机组的水轮机时间常数会随着发电计划的变化而变化,影响机组在频率事件中的功率贡献。为了响应热液系统不同发电计划下的功率变化,在所考虑的两区热液发电系统中实现了聚合插电式电动汽车模型。采用基于积分平方误差(ISE)适应度函数的启发式算法灰狼优化法对热液系统参数进行了优化。
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引用次数: 0
Space Vector PWM With Common-Mode Voltage Reduction for Six-Phase Drive 空间矢量PWM与共模电压降低的六相驱动
Pub Date : 2020-02-01 DOI: 10.1109/PIICON49524.2020.9112946
M. Chaudhury, Mukesh Kumar Pathak, G. Singh
Common-mode voltage (CMV) is one of the major reasons for electromagnetic interference. Its destructive effects on the machine windings, insulation is well known and it is one of the major sources of bearing failure in variable speed drives. Extensive analysis on CMV have been reported in previous literature in case of three-phase machine fed by voltage source inverter. Pulse width modulation has produced reduced CMV at the cost of increased current distortion and have been studied extensively during the last two decades or so. Specific advantage offered by multiphase machine, makes it suitable candidate for high power application. The common mode voltage issue is as prevalent as it is in case of its three-phase counterpart. This paper analyses the Common-mode voltage (CMV) produced by the two level six-phase voltage source inverter fed multi-phase machine and proposes a modified PWM technique for its reduction
共模电压(CMV)是产生电磁干扰的主要原因之一。它对机器绕组,绝缘的破坏性影响是众所周知的,它是变速驱动器轴承故障的主要来源之一。以前的文献对电压源逆变器三相电机的CMV进行了广泛的分析。脉宽调制以增加电流畸变为代价降低了CMV,在过去的二十年左右得到了广泛的研究。多相电机的特殊优势使其成为大功率应用的理想选择。共模电压问题与三相电压问题一样普遍。分析了两级六相电压源逆变器馈相电机产生的共模电压,提出了一种改进的PWM技术来降低共模电压
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引用次数: 0
Power Management Control Strategy for PV-Battery Standalone System 光伏电池独立系统的电源管理控制策略
Pub Date : 2020-02-01 DOI: 10.1109/PIICON49524.2020.9112970
Deeksha Bhule, Sachin Jain, Subhojit Ghosh
For a standalone PV system, there is a requirement of a battery energy storage system(BESS). This paper represents an efficient power management strategy for fulfilling the load power requirements at all times. A boost converter (boostmppt) is used to derive maximum power from the PV panel along with a buck converter(buckcharging) connected in parallel for battery charging. The discharge operation of the battery is controlled by another boost converter(boostdischarging). Depending on the load power requirement and the PV power generated, the discharge/charge of the battery occurs. The control scheme used in this paper enables cross-coupling of boostmppt and buckcharging for the regulation of output voltage by controlling the buckcharging. A complete control over the charging and discharging current is ensured by the double loop control scheme used. This paper represents a simpler approach to make the standalone system more reliable and efficient. The proposed strategy and control scheme operation has been verified by MATLAB® simulations.
对于独立的光伏系统,有一个电池储能系统(BESS)的要求。本文提出了一种有效的电源管理策略,可以满足任何时候的负载功率需求。升压转换器(boostmppt)用于从光伏面板获得最大功率,同时并联的降压转换器(buckcharging)用于电池充电。电池的放电操作由另一个升压转换器(升压放电)控制。根据负载功率需求和光伏发电功率,对蓄电池进行放电/充电。本文采用的控制方案使升压与充压的交叉耦合,通过控制充压来调节输出电压。采用双环控制方案,保证了对充放电电流的完全控制。本文提出了一种使独立系统更加可靠和高效的简单方法。通过MATLAB®仿真验证了所提出的策略和控制方案的运行。
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引用次数: 10
Scheduling of Energy on Deregulated Environment of Profit based Unit Commitment Problem 放松管制环境下基于利润的机组承诺问题的能源调度
Pub Date : 2020-02-01 DOI: 10.1109/PIICON49524.2020.9112910
Vineet Kumar, R. Naresh, Amita Singh
The profit-based unit commitment (PBUC) problem is a major combinatorial optimization problem faced by the deregulated power industry. The PBUC problem can find the most price-effective solution by performing and scheduling fuel generating systems. So, in this paper a computationally strong and effective approach ANTIGONE solver under GAMS environment is used to dealt with PBUC problem. The effectiveness of ANTIGONE approach has been examined in the 10 and 100-unit test system PBUC problem over a complete 24 scheduling time horizon. The results of the proposed algorithm are compared with the best solutions reported by previously known best techniques. Comparative results show a qualitative performance of GAMS over other existing techniques in terms of profit obtained and satisfaction level of all diverse constraints.
以利润为基础的机组承诺(PBUC)问题是解除管制后电力行业面临的主要组合优化问题。PBUC问题可以通过燃料发电系统的运行和调度找到最具价格效益的解决方案。因此,本文采用GAMS环境下计算能力强且有效的ANTIGONE求解器来处理PBUC问题。ANTIGONE方法的有效性已经在一个完整的24调度时间范围内的10和100单元测试系统PBUC问题中进行了检验。将所提算法的结果与先前已知的最佳方法所报告的最佳解进行了比较。比较结果表明,GAMS在获得的利润和对所有不同约束的满意度方面优于其他现有技术。
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引用次数: 4
Analysis of Electrical Tree Growth in Crossed Link Polyethylene Cable Insulation under Different AC Voltages 不同交流电压下交联聚乙烯电缆绝缘电气树生长分析
Pub Date : 2020-02-01 DOI: 10.1109/PIICON49524.2020.9112881
G. Sahoo, Biswajit Sahoo, S. Karmakar, Mryutyunjaya Mangaraj
The suggested model in the paper is for exploring the electrical treeing characterization in 33kV 3core cross linked poly ethylene (XLPE) insulation. Where XLPE has found its path in HV (high voltage) insulation owing to its excellent dielectric strength, mechanical strength, and internal bonding between elements that is physical property. But aging is a vital factor for all type of insulation which is mostly affected by environmental condition that is mechanical stress and electrical stress by the formation of electrical treeing structure. Electrical tree characterization is the important phenomenon for estimation of age of insulation. So as to check the life expectancy of cable insulation study of tree growth is necessary at different voltage for different duration of time and different distance of electrode arrangement. From tree length verses time, width verses time and area of tree spread verses time gives an idea for the aging of cable insulation and pre-breakdown information. As applied voltage amplitude and applied time duration increases electrical tree length and tree spread area increases that are observed under digital microscope.
本文提出的模型用于探索33kV 3芯交联聚乙烯(XLPE)绝缘的电树特性。XLPE由于其优异的介电强度、机械强度和元件之间的内部结合(物理性质)而在高压(高压)绝缘中找到了它的路径。但老化是所有类型绝缘的一个重要因素,它主要受环境条件的影响,即机械应力和电气应力的形成。电气树特性是估计绝缘寿命的重要现象。为了检验电缆绝缘的预期寿命,有必要对不同电压、不同时间和不同电极布置距离下的树形生长进行研究。从树形长度与时间的关系、树形宽度与时间的关系、树形铺展面积与时间的关系可以看出电缆绝缘的老化情况和预击穿信息。随着施加电压幅度和施加时间的增加,在数码显微镜下观察到电树的长度和树的扩散面积增加。
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引用次数: 0
Combined Frequency and Voltage Stabilization of Thermal-Thermal System with UPFC and RFB 基于UPFC和RFB的热工系统的频率和电压联合稳定
Pub Date : 2020-02-01 DOI: 10.1109/PIICON49524.2020.9113034
Abhineet Prakash, S. Parida
This paper studies a combined application of Load Frequency Control (LFC) and Automatic Voltage Regulator (AVR) in a two-area power system with thermal reheat and non-reheat plants. Proportional-integral-derivative with filter (PIDF) and PI controllers are considered to control frequency and voltage, respectively. Integral square error (ISE) is chosen as figure of demerit (FOD) and a meta-heuristic sine cosine algorithm (SCA) is implemented to adjust the control parameters to optimum values. Further improvements in the system dynamics are ensured by the combined application of unified power flow controller (UPFC) and redox flow battery (RFB). System dynamic performances on MATLAB/SIMULINK® platform show the efficacy of the proposed scheme for small load perturbation (SLP) and random load perturbation (RLP). Finally, sensitivity is tested by the change in system parameters, which shows the robustness of PIDF and PI controllers.
本文研究了负荷频率控制(LFC)和自动调压器(AVR)在有热再热装置和非热再热装置的两区电力系统中的联合应用。采用带滤波器的比例-积分-导数控制器(PIDF)和PI控制器分别控制频率和电压。选择积分平方误差(ISE)作为缺陷图(FOD),并采用元启发式正弦余弦算法(SCA)将控制参数调整到最优值。统一潮流控制器(UPFC)和氧化还原液流电池(RFB)的结合应用确保了系统动力学的进一步改善。在MATLAB/SIMULINK®平台上的系统动态性能表明了该方案对小负载摄动(SLP)和随机负载摄动(RLP)的有效性。最后,通过对系统参数的变化进行灵敏度测试,验证了PIDF和PI控制器的鲁棒性。
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引用次数: 6
Fault Tolerant T-Type Cross Connected Source Nine Level Inverter 容错t型交叉连接源九电平逆变器
Pub Date : 2020-02-01 DOI: 10.1109/PIICON49524.2020.9113064
Vinay Kumar, Sanjeev Singh, Shailendra Jain
This paper presents a T-type cross connected sources nine level inverter with single open switch fault tolerant capability. Extra components and complex calculations are not required in the proposed fault tolerant method. The topology used has reduced voltage stress across switches, current and total harmonic distortion of voltage as compared to recent developed fault tolerant topologies. Phase opposition disposition sinusoidal pulse width modulation (POD-SPWM) scheme and nearest level control (NLC) is used to achieve high quality load voltage and current waveforms. MATLAB/Simulink simulation performance of the proposed fault-tolerant T-type cross connected source 9-level inverter is assessed through.
提出了一种具有单开开关容错能力的t型交叉连接源九电平逆变器。该方法不需要额外的组件和复杂的计算。与最近开发的容错拓扑结构相比,所使用的拓扑结构减少了开关间的电压应力、电流和电压的总谐波畸变。采用相对配置正弦脉宽调制(POD-SPWM)和最近电平控制(NLC)实现高质量的负载电压和电流波形。通过MATLAB/Simulink仿真对所提出的容错t型交叉连接源9电平逆变器的性能进行了评估。
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引用次数: 1
期刊
2020 IEEE 9th Power India International Conference (PIICON)
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