2022 20th International Conference on Harmonics & Quality of Power (ICHQP)最新文献

Evaluation of Metrics to Detect High Impedance Faults Using Real Current Signals 利用真实电流信号检测高阻抗故障的度量评估

2022 20th International Conference on Harmonics & Quality of Power (ICHQP) Pub Date : 2022-05-29 DOI: 10.1109/ICHQP53011.2022.9808554

G. N. Lopes, T. S. Menezes, J. Vieira

引用次数: 0

Development of Harmonics Measurement System for Energy-Saving Lamps-An Educational Platform 节能灯谐波测量系统的开发——一个教育平台

2022 20th International Conference on Harmonics & Quality of Power (ICHQP) Pub Date : 2022-05-29 DOI: 10.1109/ICHQP53011.2022.9808614

Y. Y. Chen, G. Chang, G. Y. Li, H. J. Chen, J. Z. Wu

引用次数: 0

An Intelligent Active Power Filter to Mitigate Harmonics and Interharmonics 一种可抑制谐波和间谐波的智能有源电力滤波器

2022 20th International Conference on Harmonics & Quality of Power (ICHQP) Pub Date : 2022-05-29 DOI: 10.1109/ICHQP53011.2022.9808722

Ahmadreza Eslami, M. Negnevitsky, E. Franklin, S. Lyden

{"title":"An Intelligent Active Power Filter to Mitigate Harmonics and Interharmonics","authors":"Ahmadreza Eslami, M. Negnevitsky, E. Franklin, S. Lyden","doi":"10.1109/ICHQP53011.2022.9808722","DOIUrl":"https://doi.org/10.1109/ICHQP53011.2022.9808722","url":null,"abstract":"Harmonics and waveform distortion are substantial power quality concerns for power systems with high penetration of renewable energy generation and non-linear loads. Harmonics and interharmonics should be mitigated for efficient and proper operation of power grids, with high harmonic injection from electric loads and devices. In this paper, an intelligent Active Power Filter (APF) based on Adaptive Linear Neuron (Adaline) is proposed which can provide accurate harmonic estimation and proper mitigation in real-time without any prior knowledge about harmonic/interharmonic orders. A novel formulation is derived, and adaptive learning with momentum is used for training. The proposed APF not only inherits the high adaptability of Adaline APFs but also compensates for their drawbacks by updating weights in the presence of unknown frequency orders. Additionally, an electric topology is proposed where one APF is able to mitigate harmonics of nonlinear loads connected to two adjacent Points of Common Coupling (PCCs). For a radial structure, harmonic currents from the grid are completely mitigated while for a ring structure, only harmonics from one side of the grid are mitigated. Highly varying and distorted load scenarios are studied. Comparison of the proposed APF with the state-of-the- art APFs in the literature proves the effectiveness and suitability of the proposed intelligent APF.","PeriodicalId":249133,"journal":{"name":"2022 20th International Conference on Harmonics & Quality of Power (ICHQP)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115357089","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

Adaptive Channel Equalization for Frequency Response Correction of Instrument Transformers 用于仪表变压器频响校正的自适应通道均衡

2022 20th International Conference on Harmonics & Quality of Power (ICHQP) Pub Date : 2022-05-29 DOI: 10.1109/ICHQP53011.2022.9808643

D. F. Resende, C. Duque, E. Nepomuceno, M. Lima, L. Silva

{"title":"Adaptive Channel Equalization for Frequency Response Correction of Instrument Transformers","authors":"D. F. Resende, C. Duque, E. Nepomuceno, M. Lima, L. Silva","doi":"10.1109/ICHQP53011.2022.9808643","DOIUrl":"https://doi.org/10.1109/ICHQP53011.2022.9808643","url":null,"abstract":"Power quality (PQ) assessment has proven to be important in recent years for the power grid. The influence of the instrumentation transformer frequency response on some PQ metrics can be critical. For example, the measurement of harmonics can exhibit great inaccuracy if the measurement transformers have a frequency response that is not constant in the frequency range of interest. This problem is very similar to that found in communication systems where a non-ideal communication channel distorts the transmitted information. Thus the channel equalization approach can be used to adaptively compensate for the distortions caused by the current and voltage transducers. In the equalization approach, adaptive filtering algorithms such as RLS (Recursive Least Square) and LMS (Least Mean Squares) are commonly used to find the equalization filter coefficients. In this work, the novelty is adaptive channel equalization methodology applied to compensate for the frequency response of instrumentation transformers. Simulated results show that the methodology can reduce significantly the TVE (Total Vector Error) caused by voltage and current transformers.","PeriodicalId":249133,"journal":{"name":"2022 20th International Conference on Harmonics & Quality of Power (ICHQP)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116552455","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

An investigative study of the application of fundamental operations of mathematical morphology in the diagnosis of oscillatory transients 数学形态学基本运算在振荡瞬态诊断中的应用研究

2022 20th International Conference on Harmonics & Quality of Power (ICHQP) Pub Date : 2022-05-29 DOI: 10.1109/ICHQP53011.2022.9808642

Alessandra B G Hoffmann, C. H. Beuter, M. Oleskovicz

{"title":"An investigative study of the application of fundamental operations of mathematical morphology in the diagnosis of oscillatory transients","authors":"Alessandra B G Hoffmann, C. H. Beuter, M. Oleskovicz","doi":"10.1109/ICHQP53011.2022.9808642","DOIUrl":"https://doi.org/10.1109/ICHQP53011.2022.9808642","url":null,"abstract":"The Oscillatory Transient (OT) has defined characteristics such as a small duration, considerable variations in the voltage and frequency amplitude and can manifest itself in any part of an Electric Power System (EPS). The switching of Capacitor Banks (CBs) mainly causes the OT. The complete methodology to analyse this kind of disturbance should contemplate the study of detection of the beginning of an OT until the extraction of the main characteristics of the analyzed signal. In this research, Mathematical Morphology (MM) is applied to identify the beginning of an OT, focusing on the expansion, opening, and Dilation-Erosion Difference Filter (DEDF) filter operations. In the sequence, a matching search (MPA–Matching Pursuit Algorithm) was applied to extract parameters from a structured data dictionary. Among the results, the application of DEDF stands out, which better identifies the beginning of OT, allowing the parameters of frequency (f), damping (λ) and angle of phase (ϕ) extracted to represent and characterize the analyzed signals.","PeriodicalId":249133,"journal":{"name":"2022 20th International Conference on Harmonics & Quality of Power (ICHQP)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122691838","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

Analysis of power quality concerning COVID-19-related anomalies and integration of distributed energy resources 新型冠状病毒相关异常电能质量分析及分布式能源整合

2022 20th International Conference on Harmonics & Quality of Power (ICHQP) Pub Date : 2022-05-29 DOI: 10.1109/ICHQP53011.2022.9808683

T. Antić, T. Capuder

{"title":"Analysis of power quality concerning COVID-19-related anomalies and integration of distributed energy resources","authors":"T. Antić, T. Capuder","doi":"10.1109/ICHQP53011.2022.9808683","DOIUrl":"https://doi.org/10.1109/ICHQP53011.2022.9808683","url":null,"abstract":"With the development of technologies and the decrease of prices, the number of end-users that decide to invest in distributed energy resources (DERs) continuously grows. Despite the improvement of financial and environmental aspects of the power system operation, a growing share of DERs can cause numerous technical challenges for distribution system operators (DSOs). Besides the integration of DERs, the novel COVID-19 disease created additional challenges for DSOs in 2020 and 2021. Due to a large number of single-phase loads and DERs, the increased consumption, the number of nonlinear loads, and power electronic devices in a distribution network, many challenges are related to power quality (PQ). In this paper, realistic case studies that consider anomalies caused by the COVID-19 pandemic and integration of DERs are presented. By using pandapower and its newly developed extension, different PQ indicators are calculated and the values of voltage magnitude, voltage unbalance factor (VUF), and total harmonic distortion (THD) are compared through different scenarios. In addition, the impact of a transformer’s vector group on the PQ indicators’ propagation through the observed distribution network is analyzed. In a conclusion, the optimal vector group, that successfully mitigates or at least decreases the values of PQ indicators and their propagation is proposed.","PeriodicalId":249133,"journal":{"name":"2022 20th International Conference on Harmonics & Quality of Power (ICHQP)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117000967","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

Power Quality Indicators of Electric Vehicles in Distribution Grid 配电网电动汽车电能质量指标研究

2022 20th International Conference on Harmonics & Quality of Power (ICHQP) Pub Date : 2022-05-29 DOI: 10.1109/ICHQP53011.2022.9808823

Xiaoxi Wang, H. J. Kaleybar, M. Brenna, D. Zaninelli

引用次数: 4

Secant Method Applied to Control of HVDC in the Harmonic Domain 割线法在谐波域高压直流控制中的应用

2022 20th International Conference on Harmonics & Quality of Power (ICHQP) Pub Date : 2022-05-29 DOI: 10.1109/ICHQP53011.2022.9808607

Yovanny Ramirez, A. Ramirez, G. Lazaroiu

引用次数: 0

Comparison between two Calculation Tools for the Appraisal of Lightning Induced Voltages 雷电感应电压评定两种计算工具的比较

2022 20th International Conference on Harmonics & Quality of Power (ICHQP) Pub Date : 2022-05-29 DOI: 10.1109/ICHQP53011.2022.9808705

F. Napolitano, F. Tossani, A. Borghetti, A. Andreotti

引用次数: 0

Classification of Scalogram Signatures for Power Quality Disturbances Using Transfer Learning 基于迁移学习的电能质量扰动尺度图特征分类

2022 20th International Conference on Harmonics & Quality of Power (ICHQP) Pub Date : 2022-05-29 DOI: 10.1109/ICHQP53011.2022.9808673

Rafael S. Salles, G. C. S. Almeida, P. F. Ribeiro

{"title":"Classification of Scalogram Signatures for Power Quality Disturbances Using Transfer Learning","authors":"Rafael S. Salles, G. C. S. Almeida, P. F. Ribeiro","doi":"10.1109/ICHQP53011.2022.9808673","DOIUrl":"https://doi.org/10.1109/ICHQP53011.2022.9808673","url":null,"abstract":"The electrical power systems have gone through a process of transformations that will remain characterized by a wide penetration of renewable sources, electronic devices, and computerization. In this context, Power Quality (PQ) is associated with several challenges for the sector, presenting new issues and new scenarios for old problems. Signal processing (SP) plays an essential role in PQ applications as a tool that helps measure, characterize, and visualize electrical grid disturbances. At the same time, artificial intelligence (AI) is becomming more and more useful to classification tasks regarding PQ disturbances . This work aims to employ a transfer learning methodology for PQ disturbances classification. Wavelet scalograms of the signal are created using CWT for feature extraction of time-frequency signatures. The 2-D images of this representation are used to train and test pre-trained CNN models’ performance. The work aims to contribute to PQ disturbances classification through innovative methods and assess the performance of different CNNs models that have a significant role in image classification. The performance of four network models is assessed: ResNet-18, VGG-19, Inception-v3, and ResNet-101. Discussion and consideration about the results provide evaluation of the methodology.","PeriodicalId":249133,"journal":{"name":"2022 20th International Conference on Harmonics & Quality of Power (ICHQP)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114524611","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