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2022 IEEE Global Conference on Computing, Power and Communication Technologies (GlobConPT)最新文献

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Addressing Parameter Variation Of PMSM Drive With Multi Network Policy Based Control For Electric Vehicle Application 基于多网络策略控制的电动汽车永磁同步电机驱动参数变化寻址
Pub Date : 2022-09-23 DOI: 10.1109/GlobConPT57482.2022.9938188
Shubham Bhosale, Sukanta Halder, Soumava Bhattacharjee, Mousam Ghosh, Debojit Biswas
Since the advancement of DRL algorithms in the last decade, there is an increased focus on their application in several different fields like autonomous driving, health data monitoring, NLP, image processing, etc. Likewise a subset of these algorithms have found application in replacing the traditional control techniques, with improved performance and efficiency. PMSM drives utilized for traction application in modern day electric vehicles require a highly accurate control scheme. The performance of the controller directly contributes to the performance and efficiency of the entire system. The drawback of PMSM drives is the nonlinearity and that its parameters are dynamic in nature. The controller used in traditional control techniques (PI, PID controller) have good control action for system which are linear and time invariant. As mentioned the PMSM does have a parameter variation issue which results due to the change in ambient condition like temperature, humidity, pressure, etc. The control efficiency of traditional controller diminishes with change in parameters of the system. Hence to address these issues we adopt the FOC technique with an actor-critic agent based controller. The actor critic agent is trained with multi network policy based control algorithm. In this paper we compare and discuss the control action of a traditional control vs RL based control.
由于DRL算法在过去十年中的进步,人们越来越关注它们在几个不同领域的应用,如自动驾驶、健康数据监测、自然语言处理、图像处理等。同样,这些算法的一个子集已经被用于取代传统的控制技术,提高了性能和效率。用于现代电动汽车牵引应用的永磁同步电机驱动器需要高度精确的控制方案。控制器的性能直接影响到整个系统的性能和效率。永磁同步电机驱动器的缺点是非线性和其参数是动态的。传统控制技术中使用的控制器(PI、PID控制器)对于线性、时不变的系统具有良好的控制作用。如前所述,PMSM确实有一个参数变化问题,这是由于环境条件的变化,如温度、湿度、压力等。传统控制器的控制效率随着系统参数的变化而降低。因此,为了解决这些问题,我们采用了FOC技术和基于actor-critic agent的控制器。采用基于多网络策略的控制算法对演员评论代理进行训练。本文比较和讨论了传统控制与基于RL的控制的控制作用。
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引用次数: 0
Next Word Prediction Using Deep Learning 使用深度学习的下一个单词预测
Pub Date : 2022-09-23 DOI: 10.1109/GlobConPT57482.2022.9938153
Aditya Tiwari, N. Sengar, Vrinda Yadav
Next Word Prediction involves guessing the next word which is most likely to come after the current word. The system suggests a few words. A user can choose a word according to their choice from a list of suggested word by system. It increases typing speed and reduces keystrokes of the user. It is also useful for disabled people to enter text slowly and for those who are not good with spellings. Previous studies focused on prediction of the next word in different languages. Some of them are Bangla, Assamese, Ukraine, Kurdish, English, and Hindi. According to Census 2011, 43.63% of the Indian population uses Hindi, the national language of India. In this work, deep learning techniques are proposed to predict the next word in Hindi language. The paper uses Long Short Term Memory and Bidirectional Long Short Term Memory as the base neural network architecture. The model proposed in this work outperformed the existing approaches and achieved the best accuracy among neural network based approaches on IITB English-Hindi parallel corpus.
下一个单词预测包括猜测最有可能出现在当前单词之后的下一个单词。系统会提示一些单词。用户可以根据自己的选择从系统推荐的单词列表中选择一个单词。它提高了打字速度,减少了用户的击键次数。对于那些输入文字缓慢的残疾人和拼写不佳的人来说,这也很有用。以前的研究主要集中在预测不同语言中的下一个单词。其中一些是孟加拉语、阿萨姆语、乌克兰语、库尔德语、英语和印地语。根据2011年人口普查,43.63%的印度人口使用印度的国家语言印地语。在这项工作中,提出了深度学习技术来预测印地语中的下一个单词。本文采用长短期记忆和双向长短期记忆作为神经网络的基础架构。本文提出的模型在IITB英语-印地语平行语料库上的准确率优于现有的神经网络方法。
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引用次数: 4
Pulse splitting cum width control for transient handling of LLC Resonant Converter LLC谐振变换器瞬态处理的脉冲劈裂及宽度控制
Pub Date : 2022-09-23 DOI: 10.1109/GlobConPT57482.2022.9938336
Prajeet Shukla, V. Verma
The Proposed Converter discusses the control algorithm to suppress the inrush starting current of the resonant converter with fast dynamics. The Proposed converter is able to handle the inrush current by switching the converter at the start with twice the resonant frequency and reducing the switching frequency to near resonant frequency while at the steady state condition the variable switching frequency is achieved using look up table method. Initial transients are eliminated using proposed modified hysteresis controller. The 3.3KW, 380V/96V LLC resonant converter outcomes and performance are confirmed using MATLAB/SIMULINK.
该变换器讨论了抑制快速动态谐振变换器浪涌启动电流的控制算法。该变换器在启动时采用两倍于谐振频率的开关,并将开关频率降至近谐振频率,在稳态条件下采用查表法实现可变开关频率,从而处理浪涌电流。采用改进的迟滞控制器消除了初始瞬态。利用MATLAB/SIMULINK对3.3KW、380V/96V LLC谐振变换器的结果和性能进行了验证。
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引用次数: 0
A Bidirectional Battery Charger for a Wide Range of Electric Vehicles 一种适用于各种电动汽车的双向电池充电器
Pub Date : 2022-09-23 DOI: 10.1109/GlobConPT57482.2022.9938288
Utsav Sharma, Bhim Singh
The design and operation of the modified SEPIC converter-based bidirectional battery charger for a wide range of electric vehicles (EVs) are presented in this work. The wide range of EVs includes an electric two-wheeler (e2W) and an electric car. Therefore, the design of a modified SEPIC converter is carried out to charge an e2W with a 72 V battery and an electric car with a 240 V battery. Along with satisfactory charging operation, compliance with the IEC standard is the major advantage of the presented battery charger. Furthermore, the modified SEPIC converter-based battery charger has the advantage of bidirectional operation. To verify the effectiveness of the presented battery charger grid to a vehicle (G2V) is analyzed with the ideal grid voltage. In addition, the efficacy of the charger is verified with amplitude variations in the grid voltage. Lastly, the presented charger is tested for a vehicle-to-home (V2H) operation to verify the efficacy during the bidirectional operation.
本文介绍了基于改进型SEPIC转换器的电动汽车双向电池充电器的设计和运行。电动汽车包括电动两轮车(e2W)和电动汽车。因此,本文设计了一种改进型SEPIC变换器,分别为72v电池的e2W和240v电池的电动汽车充电。在满足充电操作的同时,符合IEC标准是本电池充电器的主要优点。此外,改进的SEPIC转换器电池充电器具有双向运行的优点。为了验证所提出的电池充电电网对车辆(G2V)的有效性,在理想电网电压下进行了分析。此外,用电网电压的幅值变化验证了充电器的有效性。最后,对该充电器进行了车到家(V2H)操作测试,以验证其在双向操作过程中的有效性。
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引用次数: 0
Modified Protection Algorithm for Shunt Compensated Doubly-fed Line against Phase-to-ground Fault 并联补偿双馈线路对相地故障的改进保护算法
Pub Date : 2022-09-23 DOI: 10.1109/GlobConPT57482.2022.9938326
A. Jani, V. Makwana
Traditional digital distance relaying scheme is used to protect the transmission lines against various abnormal conditions/faults. In this paper, the authors have discussed the adverse effects of fault and system parameters, such as fault resistance, fault location, power transfer angle etc., on the performance of the protection scheme. Further, a modified protection algorithm is developed to mitigate the effect of weak sources/non-homogeneous network on the protection of shunt-compensated doubly-fed transmission line. It also improves the performance of the protection scheme during all the aforesaid variations in system and fault parameters. The modified protection scheme is based on the mathematical analysis of the sequence components of voltage, current and impedance of the network components. An equivalent impedance vector for each of the above-stated fault and system parameters is obtained and the relationship between these vectors is represented in vectorial form. With the help of this vector diagram and the mathematical analysis, the actual impedance of faulted part of the line is calculated. Since the algorithm is derived mathematically, it is simple to understand and user-friendly. A negligible error is observed while simulating the modified protection algorithm considering all the severe variations in fault and system parameters. MATLAB/Simulink software is used to verify the developed algorithm using 50 Hz frequency of the power system.
传统的数字距离继电保护方案用于保护输电线路免受各种异常情况/故障的影响。在本文中,作者讨论了故障和系统参数,如故障电阻、故障位置、输电角度等对保护方案性能的不利影响。此外,针对弱源/非均匀网络对并联补偿双馈输电线路保护的影响,提出了一种改进的保护算法。在上述系统参数和故障参数变化的情况下,提高了保护方案的性能。改进的保护方案是基于对网络元件的电压、电流和阻抗顺序分量的数学分析。得到了上述各故障参数和系统参数的等效阻抗矢量,并以矢量形式表示了这些矢量之间的关系。借助矢量图和数学分析,计算出线路故障部分的实际阻抗。由于该算法是数学推导的,因此易于理解和用户友好。考虑到故障和系统参数的剧烈变化,对改进的保护算法进行仿真时,误差可以忽略不计。利用MATLAB/Simulink软件在电力系统的50 Hz频率上对所开发的算法进行了验证。
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引用次数: 0
Analysis of Type-2 Fuzzy IλDμ-P Controller for LFC with Communication Delay 具有通信延迟的LFCⅱ型模糊i - λ μ- p控制器分析
Pub Date : 2022-09-23 DOI: 10.1109/GlobConPT57482.2022.9938319
Pulakraj Aryan, G. Raja
Uncertainties associated with the modern power system (PS) due to fluctuating load demand as well as the intermittent nature of renewable sources require formidable control requirements. Type-2 fuzzy (T2F) controllers with their extra-dimensional membership function are better suited to handle these uncertainties to provide frequency regulation of multi-area PSs. Combined with the benefits of fractional calculus, T2F can be further enhanced. In this work, a novel T2F fractional-order-integral-derivative plus proportional (T2FIλDμ-P) controller is suggested for the load frequency control of a two-area deregulated PS having multiple generating units including renewables. The considered PS has thermal, gas and distributed renewable sources such as the solar photovoltaic (PV) and wind turbine generation as the generating units. The suggested T2FIλDμ-P controller is optimally tuned with the equilibrium optimizer. The investigated PS is applied with step interference to analyze the performance of the suggested control scheme in comparison to other prevalent controllers and optimization algorithms. A bode-instituted stability investigation is presented for the controlled system.
由于负荷需求的波动以及可再生能源的间歇性,现代电力系统(PS)的不确定性要求强大的控制要求。具有额外维度隶属函数的2型模糊(T2F)控制器更适合处理这些不确定性,以提供多区域PSs的频率调节。结合分数阶微积分的优点,T2F可以进一步增强。本文提出了一种新型的T2F分数阶-积分-导数加比例(T2FIλDμ-P)控制器,用于具有多个可再生能源发电机组的两区无管制电力系统的负荷频率控制。考虑的PS具有热、气和分布式可再生能源,如太阳能光伏(PV)和风力涡轮机发电作为发电单元。利用平衡优化器对建议的T2FIλDμ-P控制器进行了最优调谐。将所研究的PS应用于阶跃干扰,与其他流行的控制器和优化算法进行比较,分析所提出的控制方案的性能。对被控系统进行了博德建立的稳定性研究。
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引用次数: 0
An IoT-based Multifunctional Fire Extinguishing Robot for Industrial & Residential Safety 一种基于物联网的工业和住宅安全多功能灭火机器人
Pub Date : 2022-09-23 DOI: 10.1109/GlobConPT57482.2022.9938217
Pullock Deb Nath, Abdullah Al Mamun, Aparna Das, Sajjadul Islam Nader, Gulam Mahfuz Chowdhury
Accidents are on the rise in today's world. An accident may potentially cause the loss of many lives, valuable properties, or sometimes may lead to permanent disability to the victim. New and improved technologies are being used to prevent these accidents. In this paper, we have proposed an loT-based multifunctional fire extinguishing robot that will minimize the damage of the accidents like fire hazards, building collapse, deadly gas leakage, etc. This project aims to ensure the safety of our lives and valuable properties by minimizing the damages that occurred from any accident.
当今世界的事故呈上升趋势。一场事故可能会造成许多人的生命和宝贵财产的损失,有时还可能导致受害者终身残疾。新的和改进的技术正在被用来防止这些事故。在本文中,我们提出了一种基于空地的多功能灭火机器人,可以最大限度地减少火灾、建筑物倒塌、致命气体泄漏等事故的损失。该项目旨在通过最大限度地减少事故造成的损失来确保我们的生命和宝贵财产的安全。
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引用次数: 0
Comparative Fault Ride Through Assessment between Grid-following and Grid-forming Control for Weak Grids Integration 弱电网集成中电网跟随与成网控制的故障穿越性比较
Pub Date : 2022-09-23 DOI: 10.1109/GlobConPT57482.2022.9938233
Minyang Wang, K. Meng, Li Yu, Liang Yuan, Zheng Liang
The increasing penetration of renewable energy results in the grid strength to reduce, and the short circuit ratio (SCR) of the power grid decreases, which causes interference to the traditional power system's operation under a steady state. In order to mitigate such problems, the grid- forming (GF) inverter has been proposed, which is able to provide frequency support during disturbances. The configuration of different types of grid-forming control has been proposed, and their dynamic performances have been thoroughly researched. To further study the fault ride-through (FRT) capability during a three-phase balanced short-circuit fault and compare the dynamic difference between grid- following (GL) and grid-forming control, a theoretical analysis of the inverter using different control methods is conducted. The outcome demonstrates in grid-following control, large frequency variations will occur during and after the fault, while the grid-forming control has small frequency variations, it has better fault ride-through capability and is suitable to operate under a weak grid. Finally, electromagnetic transient simulations are carried out in PSCAD to verify the conclusions.
可再生能源渗透率的提高导致电网强度降低,电网的短路比(SCR)降低,对传统电力系统稳态运行造成干扰。为了缓解这些问题,我们提出了网格形成逆变器,它能够在干扰下提供频率支持。提出了不同类型的成形控制结构,并对其动态性能进行了深入的研究。为了进一步研究三相平衡短路故障时的故障穿越能力,比较电网跟随控制和电网形成控制的动态差异,对采用不同控制方法的逆变器进行了理论分析。结果表明,随网控制在故障期间和故障后频率变化较大,而成网控制频率变化较小,具有较好的故障穿越能力,适合在弱电网条件下运行。最后,在PSCAD上进行了电磁瞬变仿真,验证了所得结论。
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引用次数: 0
A new Machine Learning based Approach for Power System State Forecasting 基于机器学习的电力系统状态预测新方法
Pub Date : 2022-09-23 DOI: 10.1109/GlobConPT57482.2022.9938156
S. Singh, A. Thakur, S. P. Singh
State estimation in power systems is utilized to provide an ongoing data set for controlling and observing power systems' performance. There are a few traditional methods like Weighted Least Square (WLS), Weighted Least Average Value (WLAV), and settled utilizing iterative techniques, for example, Gauss-Newton methods. However, these techniques are sensitive to the operating conditions of power systems and uncertainties associated with Renewable Energy Systems (RESs). These techniques yield poor results in the presence of missing data arising out of unreliable communication networks and false data injection, as in the case of a cyber-attack. This paper proposes Bi-directional LSTM (BiLSTM) based Machine Learning method to forecast the state values of power systems. The BiLSTM model utilizes forward and backward layers, having bidirectional memory, making it capable of estimating both past and future hidden layers data. This paper investigates the performance of the proposed method studied on different test system datasets. The efficacy of the proposed method is investigated by comparing the obtained results with other Machine Learning techniques results in the literature. Further, the BiLSTM model's robustness for state estimation is analyzed in the presence of Gaussian noise and missing data points.
电力系统的状态估计是为控制和观察电力系统的性能提供一个持续的数据集。传统的方法有加权最小二乘法(WLS)、加权最小平均值法(WLAV)等,并利用迭代方法求解,如高斯-牛顿法。然而,这些技术对电力系统的运行条件和与可再生能源系统(RESs)相关的不确定性很敏感。在不可靠的通信网络和虚假数据注入(如网络攻击)导致数据丢失的情况下,这些技术产生的结果很差。提出了一种基于双向LSTM (BiLSTM)的电力系统状态值预测机器学习方法。BiLSTM模型利用前向和后向层,具有双向记忆,使其能够估计过去和未来的隐藏层数据。本文在不同的测试系统数据集上研究了该方法的性能。通过将所获得的结果与文献中其他机器学习技术的结果进行比较,研究了所提出方法的有效性。进一步分析了在存在高斯噪声和缺失数据点的情况下,BiLSTM模型对状态估计的鲁棒性。
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引用次数: 0
Determination of Measurement based Air Conditioner Load Models 基于测量的空调负荷模型的确定
Pub Date : 2022-09-23 DOI: 10.1109/GlobConPT57482.2022.9938272
S. Singh, A. Thakur, S. Singh, Smita Singh, Sneha Priyadarshi
This paper presents an air conditioner's mathematical static load model in a power distribution network. A mathematical model has been proposed to obtain a polynomial load model for air conditioner load. Mathematical analysis has been carried out by creating a large dataset experimentally by varying voltage and frequency, which has been further interpolated to obtain the final load model. Six different types (i.e., ratings and brands) of air conditioners have been used for experimental verification purposes. MATLAB software toolbox Neural Net Fitting tool has been utilized for the computation purpose of obtaining the best fit model. As the data set created is considerable, different metrics., i.e., Mean Squared Error (MSE) and Regression Value R, are used to evaluate the performance of the trained model. Finally., the obtained model has been compared with the theoretical models.
本文提出了配电网中空调静态负荷的数学模型。提出了一个数学模型,得到了空调负荷的多项式负荷模型。通过实验建立一个大数据集,通过改变电压和频率进行数学分析,并进一步插值得到最终的负载模型。为了实验验证的目的,使用了六种不同类型(即等级和品牌)的空调。利用MATLAB软件工具箱神经网络拟合工具进行计算,得到最佳拟合模型。由于创建的数据集相当大,所以度量标准不同。,即均方误差(MSE)和回归值R,用来评估训练模型的性能。最后。,所得模型与理论模型进行了比较。
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引用次数: 0
期刊
2022 IEEE Global Conference on Computing, Power and Communication Technologies (GlobConPT)
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