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":"18 1","pages":""},"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

Model Based Systems Engineering Concepts and Methodologies for Modeling of Renewable Power Plants 基于模型的系统工程概念和可再生能源电厂建模方法

Renewable Energy and Power Quality Journal Pub Date : 2023-07-01 DOI: 10.24084/repqj21.229

R. Rosa Sanabria, P. Eguía López, I. Aranzabal Santamaria, I. ZAMORA BELVER

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

Two-step optimization algorithm for energy management and active-reactive power commands for real-time operation of hybrid microgrids 混合微电网实时运行的能量管理和有功功率指令两步优化算法

Renewable Energy and Power Quality Journal Pub Date : 2023-07-01 DOI: 10.24084/repqj21.399

Marcial González de Armas, S. Arnaltes Gómez, F. Arredondo, J. L. Rodríguez Amenedo

引用次数: 0

Prediction models and their role in advanced energy management systems supporting energy flexibility services 预测模型及其在支持能源灵活性服务的先进能源管理系统中的作用

Renewable Energy and Power Quality Journal Pub Date : 2023-07-01 DOI: 10.24084/repqj21.398

N. Uremović, N. Lukač, P. Sukič, G. Štumberger

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":"55 1","pages":""},"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

Characterisation of Electrical Power Systems Based on Electrical Curves and their properties 基于电性曲线及其性质的电力系统表征

Renewable Energy and Power Quality Journal Pub Date : 2023-07-01 DOI: 10.24084/repqj21.407

J. Ventura, F. Martínez, L. Castro-Santos, A. Filgueira-Vizoso, A. Alcayde, F. G. Montoya

引用次数: 0

Experimental and Numerical Investigation of Channeling Effects on Noise and Aerodynamic Performance of NACA 0012 Aerofoil in Wind Turbine Applications 导流对NACA 0012型翼型噪声和气动性能影响的实验与数值研究

Renewable Energy and Power Quality Journal Pub Date : 2023-07-01 DOI: 10.24084/repqj21.328

Hussein K. Mohammad, S. Jali, Arz Qwam Alden, V. Kilchyk, B. Shrestha

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":"10 1","pages":""},"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

Stabilizing multimachine power systems with fuzzy logic using artificial bee colonies 利用人工蜂群模糊逻辑稳定多机电力系统

Renewable Energy and Power Quality Journal Pub Date : 2023-07-01 DOI: 10.24084/repqj21.258

W. Hamanah, Abdullah Baraean, A. Hussein, M. A. Abido

{"title":"Stabilizing multimachine power systems with fuzzy logic using artificial bee colonies","authors":"W. Hamanah, Abdullah Baraean, A. Hussein, M. A. Abido","doi":"10.24084/repqj21.258","DOIUrl":"https://doi.org/10.24084/repqj21.258","url":null,"abstract":"Over the past few years, fuzzy logic systems have gained popularity due to their superiority over classical controllers when it comes to enhancing the transient stability of power systems. In this paper, a Fuzzy Logic Power System Stabilizer (FLPSS) is designed to damp local and inter-area oscillations following disturbances through the use of an Artificial Bee Colony Optimization Algorithm (ABC). The designed FLPSS is expected to significantly increase the robustness of power systems and ultimately improve the quality of power supply to end-users. This test system consists of two areas with four machines and eleven buses, with the purpose of evaluating the performance of the ABC-FLPSS under a variety of disturbances and loads. In order to optimize the scaling factors of FLPSSs, the Integral Squared Error (ISE) of rotor speed deviation is formulated as an objective function. Evaluation of the proposed controller involves simulating the test system under different conditions. These conditions range from small perturbations, such as changes in one of the system parameters, to large changes, such as removing a main transmission line, to determine its effectiveness. A comparison of ABC-FLPSS with FLPSS and Conventional Power System Stabilizer (CPSS) shows that the ABC-FLPSS controller is superior to FLPSS and CPSS.","PeriodicalId":21076,"journal":{"name":"Renewable Energy and Power Quality Journal","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78849050","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: 2