Renewable Energy and Power Quality Journal最新文献_第8页

The use of innovative tools in the medium voltage grid development, a case study of series voltage regulator 在中压电网发展中运用创新工具，以串联稳压器为例进行研究

Renewable Energy and Power Quality Journal Pub Date : 2023-07-01 DOI: 10.24084/repqj21.409

B. Tőzsér, I. Táczi, A. Torok

{"title":"The use of innovative tools in the medium voltage grid development, a case study of series voltage regulator","authors":"B. Tőzsér, I. Táczi, A. Torok","doi":"10.24084/repqj21.409","DOIUrl":"https://doi.org/10.24084/repqj21.409","url":null,"abstract":"The rapid technological improvements concerning the renewable energy sources and the energy policy of the European Union, and the National Energy Strategy are leading to a rapid increase in the number of intermittent renewable power plants. Thus, new challenges emerge in the operation of the distribution system. To operate the system efficiently, the use of innovative technologies must be considered, because conventional network development strategies cannot always provide an optimal solution for the problem. This paper analyses the effects of largescale wind power generation on a medium voltage system and a solution of the problems faced through a case study of a serial voltage regulator. The difference between the profiles of generation and loads causes the residential transformers at the end of the line to encounter large, more than 8% voltage fluctuation. To assess the site’s voltage profile, time series symmetrical load flow calculations were performed. After the thorough analysis of the circumstances a serial voltage regulator device was implemented at 3 different nodes of the system and a placement analysis was carried out with statistical tools. The results showed a 3% decrease in the voltage fluctuation at the end of the line even when the device was far from these nodes; and with an optimal placement, the device could halve the largest voltage fluctuation on the line.","PeriodicalId":21076,"journal":{"name":"Renewable Energy and Power Quality Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82807066","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

Power management strategy for photovoltaic system with hybrid storage (Batteries/Supercapacitors) 混合储能光伏系统的电源管理策略(电池/超级电容器)

Renewable Energy and Power Quality Journal Pub Date : 2023-07-01 DOI: 10.24084/repqj21.343

Z. Mokrani, Djamila Rekioua, N. Mebarki, A. Oubelaid, K. Kakouche, T. Rekioua

引用次数: 0

Review of the Energy transition assessment methods in touristic municipalities 旅游城市能源转型评价方法综述

Renewable Energy and Power Quality Journal Pub Date : 2023-07-01 DOI: 10.24084/repqj21.348

C. Andrada-Monrós, E. Peñalvo-López, I. Valencia-Salazar, J. Cárcel-Carrasco

{"title":"Review of the Energy transition assessment methods in touristic municipalities","authors":"C. Andrada-Monrós, E. Peñalvo-López, I. Valencia-Salazar, J. Cárcel-Carrasco","doi":"10.24084/repqj21.348","DOIUrl":"https://doi.org/10.24084/repqj21.348","url":null,"abstract":"Initiatives have been launched by the EU to address climate change, including those aimed at islands and municipalities. Analysing the impact of the energy transition through modelling is essential for the strategic decision-making process to move forward to the ET. The new energy model requires municipalities to be key drivers, although their needs are very specific and depend on external factors such as their own governance. In the case of municipalities located on tourist islands, the need for tools and support for the creation of energy and sustainable transition plans is even more evident. Currently, methods and models have been developed for energy planning or for the assessment of different energy scenarios, but there is no model that integrates a multidimensional approach at the municipal level, enhances the decisions of policymakers, integrates a knowledge base specifically focused on islands and monitors the progress of local measures through energy indicators. This paper reviews the state of existing decisionmaking models and energy tools, specifically those aimed at islands and policymakers, and identifies the gaps to generate added value to facilitate the path to ET for island tourist municipalities and monitor their progress.","PeriodicalId":21076,"journal":{"name":"Renewable Energy and Power Quality Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80661010","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

Output voltage control of the OVT inverter OVT逆变器的输出电压控制

Renewable Energy and Power Quality Journal Pub Date : 2023-07-01 DOI: 10.24084/repqj21.456

J. Iwaszkiewicz, A. Muc

引用次数: 0

Power Sharing Control for a Microgrid with PV Power Plants, Batteries and Quasi-Z-source Cascaded H-bridge Multilevel Inverter 由光伏电站、电池和准z源级联h桥多电平逆变器组成的微电网的功率共享控制

Renewable Energy and Power Quality Journal Pub Date : 2023-07-01 DOI: 10.24084/repqj21.457

Pablo Horrillo-Quintero, Pablo García-Triviño, Raúl Sarrias-Mena, C. García-Vázquez, Luis M. Fernández‐Ramírez

{"title":"Power Sharing Control for a Microgrid with PV Power Plants, Batteries and Quasi-Z-source Cascaded H-bridge Multilevel Inverter","authors":"Pablo Horrillo-Quintero, Pablo García-Triviño, Raúl Sarrias-Mena, C. García-Vázquez, Luis M. Fernández‐Ramírez","doi":"10.24084/repqj21.457","DOIUrl":"https://doi.org/10.24084/repqj21.457","url":null,"abstract":"In recent years, Quasi-Z-source cascaded H-bridge multilevel inverters (qZS-CHBMLIs) have become an interesting solution for integrating renewable energy into the utility grid. The possibility of performing power conversion in a single stage, without an additional DC/DC converter, and a higher voltage gain, are their main advantages over traditional inverters. In addition, individual control of the maximum power point tracking (MPPT) can be achieved for each PV plant. Owing to the intermittent nature of PV power plants, battery energy storage systems (BESS) are commonly used to smooth out PV power fluctuations. This paper presents a control system for the active and reactive power delivered to the grid according to the system operator references and an EMS for an ES-qZS-CHBMLI. The BESS is coordinated through an energy management system (EMS) based on the state of charge (SOC) The system is evaluated under two different operation modes. One of them, where the PV power plants operate according to their MPP and the other in which the MPPT faults and thus, the PV power is decreased. A MATLAB-Simulink simulation is used to validate the proposed control system for a grid-connected single-phase configuration based on a qZSCHBMLI with three cascade qZSI, each connected to a 4.8 kW PV power plant and a BESS.","PeriodicalId":21076,"journal":{"name":"Renewable Energy and Power Quality Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90901584","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

A Benchmark and Validation Guide for the Hungarian Implementation of the Common European Requirements for Electricity Generators 匈牙利实施欧洲发电机共同要求的基准和验证指南

Renewable Energy and Power Quality Journal Pub Date : 2023-07-01 DOI: 10.24084/repqj21.288

I. Vokony

{"title":"A Benchmark and Validation Guide for the Hungarian Implementation of the Common European Requirements for Electricity Generators","authors":"I. Vokony","doi":"10.24084/repqj21.288","DOIUrl":"https://doi.org/10.24084/repqj21.288","url":null,"abstract":"In the Hungarian electricity system, as well as in other European countries, the share of renewable based production is increasing. These power generating modules do not contain rotating masses like those of traditional synchronous power generating modules which creates new challenges on the electric grid with respect to system stability and frequency control. The distribution system operators (DSOs) of the different countries need to cope with this problem and set frequency, voltage thresholds and robustness requirements for the electricity generating power plants. This project aims to create specific requirements for the Hungarian generators considering the former implementations of other countries (UK, Germany, Denmark and Finland). The different requirements of these foreign areas are introduced in a benchmark study, which is the first essential part of the whole project. Such implementations are only partially defined for Hungary; therefore, in some cases it is necessary to use the implementations of other foreign countries which have similar grid characteristics and are dealing with the same control and operation challenges. Another important milestone of this work besides the benchmark study is to present a validation guide for the Hungarian transmission system operator (TSO) that can be sent directly to the operators of electric power generating modules with six different types. These guides contain compliance tests for the power plants to examine whether they meet the requirements of grid connection or not.","PeriodicalId":21076,"journal":{"name":"Renewable Energy and Power Quality Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83928484","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

Development and testing midpoint voltage balance algorithms of three-level inverters 三电平逆变器中点电压平衡算法的开发与测试

Renewable Energy and Power Quality Journal Pub Date : 2023-07-01 DOI: 10.24084/repqj21.382

L. Stranyóczky, A. Balogh, Z. Sütő, I. Varjasi

引用次数: 0

Optimal active power control of wind turbines in grid-forming mode 并网模式下风电机组最优有功控制

Renewable Energy and Power Quality Journal Pub Date : 2023-07-01 DOI: 10.24084/repqj21.220

Bashar Mousa Melhem, Steven Liu

引用次数: 0

The Power Link Caribbean Project 加勒比电力网项目

Renewable Energy and Power Quality Journal Pub Date : 2023-07-01 DOI: 10.24084/repqj21.318

F. Nuñez, G. Magallanes, L. Pacheco, N. Luo, J. Vila

引用次数: 0

Verification of the uninterrupted transition from grid parallel to island grid operation of the Virtual Synchronous Machine in a microgrid 微电网虚拟同步机从并网到岛网运行不间断过渡的验证

Renewable Energy and Power Quality Journal Pub Date : 2023-07-01 DOI: 10.24084/repqj21.236

Steven Reineke, D. Turschner, I. Hauer, H. Beck

{"title":"Verification of the uninterrupted transition from grid parallel to island grid operation of the Virtual Synchronous Machine in a microgrid","authors":"Steven Reineke, D. Turschner, I. Hauer, H. Beck","doi":"10.24084/repqj21.236","DOIUrl":"https://doi.org/10.24084/repqj21.236","url":null,"abstract":"The classic energy supply system is mainly based on the stabilising properties of electromechanical synchronous generators. The structural change of the electrical energy supply system towards a decentralised grid structure means that ancillary services must now also be provided at the distribution grid level. The Virtual Synchronous Machine (VISMA) was developed at the Institute of Electrical Power Engineering at the Clausthal University of Technology with the aim of making a decentralised generation unit in the grid behave like a real synchronous machine and thus actively provide relevant ancillary services. The VISMA is based on a three-phase inverter that can comply with grid requirements by adding an energy storage device in the DC link and using a special control algorithm. The focus of the investigations shown here is on the uninterrupted transition from grid-parallel operation of the VISMA to island grid operation and the subsequent stable continued operation of this island grid. A controller changeover, as most feed-in inverters would require in order to change the operating mode, is not necessary here. It is shown that the transients have subsided after 5 ms, which means that the VISMA has completely taken over the","PeriodicalId":21076,"journal":{"name":"Renewable Energy and Power Quality Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90205896","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