IET Energy Systems Integration最新文献_第10页

Improved generalised integrator for optimal dispatch of SyRG-based pico-hydro-PV system 基于syg的微型水电光伏系统优化调度的改进广义积分器

IF 2.4

IET Energy Systems Integration Pub Date : 2021-12-17 DOI: 10.1049/esi2.12052

Rohini Sharma, Bhim Singh, Seema Kewat

{"title":"Improved generalised integrator for optimal dispatch of SyRG-based pico-hydro-PV system","authors":"Rohini Sharma, Bhim Singh, Seema Kewat","doi":"10.1049/esi2.12052","DOIUrl":"10.1049/esi2.12052","url":null,"abstract":"The fluctuating outputs from renewable energy sources (RESs) and variable load power demand deteriorate the current quality, thus an improved generalised integrator with a frequency-locked loop (IGI-FLL) control strategy is used, which is not only easy but simple to attain a quick and precise fundamental extraction. IGI-FLL control method is utilised with all-pass filter and is capable to accomplish enhanced harmonics, noise and DC offset rejection ability while estimating fundamental component of the load current. In addition, the FLL structure is used to increase the frequency immunity against voltage variations. It provides improved steady-state and dynamic performances with flexibility in parameter tuning in comparison to SOGI-FLL algorithm. It also presents a cost-effective and robust genetic algorithm (GA)-based optimisation to provide optimum battery charging and discharging power while satisfying the state-of-charge (SOC) limits under RES uncertainty. In this islanded microgrid, a Synchronous Reluctance Generator for pico-hydro and photovoltaic array is used so that this hybrid system utilises maximum solar PV array power, matches the load, or else charges the battery energy storage while maintaining power balance in the microgrid. Comparative outcomes authenticate the efficacy of the algorithm to handle the issue of RES uncertainty and load unbalance in an islanded microgrid.","PeriodicalId":33288,"journal":{"name":"IET Energy Systems Integration","volume":"4 1","pages":"116-130"},"PeriodicalIF":2.4,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/esi2.12052","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41601543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

An integrated market solution to enable active distribution network to provide reactive power ancillary service using transmission–distribution coordination 一种综合市场解决方案，使有源配电网能够利用输配电协调提供无功辅助服务

IF 2.4

IET Energy Systems Integration Pub Date : 2021-12-17 DOI: 10.1049/esi2.12051

Houhe Chen, Haoyuan Li, Chuqiao Lin, Xiaolong Jin, Rufeng Zhang, Xue Li

{"title":"An integrated market solution to enable active distribution network to provide reactive power ancillary service using transmission–distribution coordination","authors":"Houhe Chen, Haoyuan Li, Chuqiao Lin, Xiaolong Jin, Rufeng Zhang, Xue Li","doi":"10.1049/esi2.12051","DOIUrl":"10.1049/esi2.12051","url":null,"abstract":"The active distribution network (ADN) can provide the reactive power ancillary service (RPAS) to improve the operations of the transmission network operations (such as voltage control and network loss reduction) as distribution generation grows. In this context, an RPAS market is required to motivate the ADN to provide the RPAS to the transmission network since the transmission system operator (TSO) and the distribution system operator (DSO) are different entities. Hence, to obtain the TSO–DSO coordination in the RPAS market, this study proposes a two-stage market framework on the basis of the successive clearing of the energy and RPAS markets. Additionally, a distributed market-clearing mechanism based on an alternating direction method of multipliers (ADMM) is adopted to guarantee TSO's and DSO's information privacy. Furthermore, a binary expansion (BE) method is used to linearise the non-convex bilinear terms in the market-clearing model. The effectiveness of the proposed RPAS market framework and distributed market-clearing mechanism is validated using two different test systems with different system scales.","PeriodicalId":33288,"journal":{"name":"IET Energy Systems Integration","volume":"4 1","pages":"98-115"},"PeriodicalIF":2.4,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/esi2.12051","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44559392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Adjoint least mean square control for solar photovoltaic array grid-connected energy generating system 太阳能光伏阵列并网发电系统的伴随最小均方控制

IF 2.4

IET Energy Systems Integration Pub Date : 2021-12-02 DOI: 10.1049/esi2.12049

Sunaina Singh, Seema Kewat, Bhim Singh, Bijaya Ketan Panigrahi

{"title":"Adjoint least mean square control for solar photovoltaic array grid-connected energy generating system","authors":"Sunaina Singh, Seema Kewat, Bhim Singh, Bijaya Ketan Panigrahi","doi":"10.1049/esi2.12049","DOIUrl":"10.1049/esi2.12049","url":null,"abstract":"This study deals with a new control for a double-stage grid-integrated solar photovoltaic array (SPVA)-based energy generation system, which is based on adjoint least mean square (ALMS) control. This ALMS control algorithm has some new features: (1) it provides a fast rate of convergence, (2) harmonics mitigation ability, and (3) ease of implementation. The solar PV energy generating system includes a DC–DC boost converter, a voltage source converter (VSC), a ripple filter, a three-phase grid, and local non-linear loads. The VSC is controlled for feeding the active power from the solar array to the grid and three-phase non-linear loads. Moreover, VSC control is used to improve the grid current quality. A DC–DC boost converter is coupled between the photovoltaic array and the DC-link capacitor, which tracks the maximum SPVA power from the SPV array by using perturb & observe algorithm. Here, the main goals of SPVA generating system are to eradicate power quality problems caused by unbalanced and non-linear loads and to provide sinusoidal grid currents at solar PV array irradiance variation. Moreover, a comparison of ALMS control is made with other control algorithms. Performance of this ALMS control is studied at varying non-linear loads and under different environmental conditions on a developed prototype in the laboratory. The simulated results of the system are validated with test results. Detailed behaviour of the grid-integrated SPV system and harmonics spectrum of grid currents are given here while meeting the IEEE 519 Standard.","PeriodicalId":33288,"journal":{"name":"IET Energy Systems Integration","volume":"4 1","pages":"72-86"},"PeriodicalIF":2.4,"publicationDate":"2021-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/esi2.12049","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46266246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Sizing approaches for solar photovoltaic-based microgrids: A comprehensive review 基于太阳能光伏的微电网的规模方法:一个全面的回顾

IF 2.4

IET Energy Systems Integration Pub Date : 2021-11-17 DOI: 10.1049/esi2.12048

Mobi Mathew, Md Shafayet Hossain, Sajeeb Saha, Som Mondal, Md Enamul Haque

{"title":"Sizing approaches for solar photovoltaic-based microgrids: A comprehensive review","authors":"Mobi Mathew, Md Shafayet Hossain, Sajeeb Saha, Som Mondal, Md Enamul Haque","doi":"10.1049/esi2.12048","DOIUrl":"10.1049/esi2.12048","url":null,"abstract":"In the design procedure of a PV-based microgrid, optimal sizing of its components plays a significant role, as it ensures optimum utilization of the available solar energy and associated storage devices. This in turn ensures efficient and economic operation of the microgrid. Various approaches have been reported in the literature in order to approach the sizing problem in PV-based microgrids. However, the existing approaches are subjective to the requirements of the microgrid and there is no unique framework for approaching the microgrid sizing problem. In this study, a comprehensive review of the existing approaches used for sizing of PV-based microgrids with a summary of the commonly adopted design considerations has been presented. Also, the optimization problem, including the usually considered designed objectives and constraints, for PV-based microgrid sizing have been thoroughly reviewed in this study. Furthermore, the adopted approaches for solving the optimization problem associated with the sizing of a PV-based microgrid system available in the literature have been reviewed comprehensively. With a view to present a generic framework for the optimal sizing of a PV-based microgrid, this study further presents a framework based on the comprehensive review of the existing literature. The developed framework will be useful for both the practising engineers and academics to understand and apply the usual practices for optimal sizing of PV-based microgrids.","PeriodicalId":33288,"journal":{"name":"IET Energy Systems Integration","volume":"4 1","pages":"1-27"},"PeriodicalIF":2.4,"publicationDate":"2021-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/esi2.12048","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42873710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Distribution planning of mobile battery energy storage systems for grid outage support to urban residents 城市居民电网停电支持的移动电池储能系统分布规划

IF 2.4

IET Energy Systems Integration Pub Date : 2021-11-17 DOI: 10.1049/esi2.12050

Zehua Zhao, Fengji Luo, Gianluca Ranzi, Fei Gao

引用次数: 3

Aggregating buildings as a virtual power plant: Architectural design, supporting technologies, and case studies 将建筑物聚合为虚拟发电厂:建筑设计、支持技术和案例研究

IF 2.4

IET Energy Systems Integration Pub Date : 2021-11-15 DOI: 10.1049/esi2.12047

Fengji Luo, Ali Dorri, Gianluca Ranzi, Junbo Zhao, Raja Jurdak

{"title":"Aggregating buildings as a virtual power plant: Architectural design, supporting technologies, and case studies","authors":"Fengji Luo, Ali Dorri, Gianluca Ranzi, Junbo Zhao, Raja Jurdak","doi":"10.1049/esi2.12047","DOIUrl":"10.1049/esi2.12047","url":null,"abstract":"Prevalence of distributed generation drives the emergence of the ‘Virtual Power Plant (VPP)’ paradigm. A VPP aggregates distributed energy resource and can operate as a conventional power plant. In recent years, a large portion of renewable energy sources are installed in the commercial/industrial/residential building side, and their potentials and flexibilities can be aggregated in the VPP context. Nevertheless, building-side energy resources are usually managed by building energy management systems (BEMSs) with autonomous objectives and policies, making them hardly to be directly controlled by the VPP energy management system as the state-of-the-art VPP. This study systematically presents a building VPP (BVPP) architecture that aggregates building-side energy resources through the communication between the VPP energy management system and autonomous BEMSs. The implementation technologies, key components, and operation modes of BVPPs are discussed. Case studies are reported to demonstrate the effectiveness of BVPP in different operational conditions.","PeriodicalId":33288,"journal":{"name":"IET Energy Systems Integration","volume":"4 4","pages":"423-435"},"PeriodicalIF":2.4,"publicationDate":"2021-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/esi2.12047","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48131688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Virtual Power Plant (VPP) scheduling with uncertain multiple Locational Marginal Prices 具有不确定多站点边际价格的虚拟电厂调度

IF 2.4

IET Energy Systems Integration Pub Date : 2021-11-05 DOI: 10.1049/esi2.12046

Meenakshi Khandelwal, Parul Mathuria, Rohit Bhakar

{"title":"Virtual Power Plant (VPP) scheduling with uncertain multiple Locational Marginal Prices","authors":"Meenakshi Khandelwal, Parul Mathuria, Rohit Bhakar","doi":"10.1049/esi2.12046","DOIUrl":"10.1049/esi2.12046","url":null,"abstract":"Aggregation of heterogeneous distributed energy resources (DERs) and prosumers for profit maximisation by virtue of the market interface has evolved into virtual power plants (VPPs). The VPP operator optimises its aggregated resources to maximise profit by participating in the wholesale electricity market. VPP resources may be geographically dispersed and connected to a transmission grid at various nodes having different locational marginal prices (LMPs). These LMPs vary throughout the day and exhibit mutual correlation. Considering this, the current study presents a profit maximisation framework for VPP operators working under multiple LMPs, with their correlated uncertainties. This work also provides VPP resource scheduling for profit maximisation, considering optimal trading at various LMP nodes for a constrained internal network. This decision is devised using Markowitz's mean-variance (M-V) criterion under expedient correlation between volatile LMPs. A numerical case study on the proposed model with the PJM market demonstrates that LMP correlation alters the role of the VPP operator. This affects its trading and scheduling decisions as a buyer/seller at various time intervals to improve its profit–risk trade-off and consequently the market interfacing of the VPP operator. The proposed model is relevant in practical market conditions for day-ahead/medium-term VPP planning while managing market uncertainty.","PeriodicalId":33288,"journal":{"name":"IET Energy Systems Integration","volume":"4 4","pages":"436-447"},"PeriodicalIF":2.4,"publicationDate":"2021-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/esi2.12046","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42970623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Single-phase grid-fed variable frequency high-efficiency induction motor drive for fan applications 单相并网变频高效感应电机驱动风扇应用

IF 2.4

IET Energy Systems Integration Pub Date : 2021-10-01 DOI: 10.1049/esi2.12045

Khusro Khan, Saurabh Shukla, Bhim Singh

{"title":"Single-phase grid-fed variable frequency high-efficiency induction motor drive for fan applications","authors":"Khusro Khan, Saurabh Shukla, Bhim Singh","doi":"10.1049/esi2.12045","DOIUrl":"10.1049/esi2.12045","url":null,"abstract":"This work deals with a single-phase grid-fed fan type variable speed load profile system operated by a mechanical sensorless induction motor (IM) drive. A power factor corrected (PFC) boost converter is utilised for the development of the system. A full speed range of a fan with enhanced power quality during normal and abnormal grid voltage conditions is achieved by using this system. The system is simulated and analysed under variable speed and load conditions, during both the normal and weak grid, for a fan type load profile. To comply the IEEE-519 standard at the utility grid, the power quality limits are achieved by developed control. Simulated results are validated with test results obtained on a developed prototype. The simulated and test results validate the suitability of the developed system at diverse operating conditions. The operational cost of the system is reduced by the use of a high-efficiency IM and its efficiency is optimised. A combined approach of design of experiment (DOE) for reduction of variables and a particle swarm optimisation (PSO) technique with an objective function as the maximisation of efficiency is used to design and develop an IM with improved performance. Initially, parametric analysis of different variables of the IM is performed analytically to design the IM, design of experiment is used to reduce the number of variables, and different components of the motor are designed and optimised using PSO. Design simulations are performed using RMxprt analysis and finite element analysis is performed using Maxwell-2D design software. The developed high-efficiency motor is tested on a test setup in the laboratory and its tests are conducted as per the IEEE-standard 112-2017, with comparative analysis of a conventional motor of a 1.5 kW four-pole, three-phase squirrel cage IM, and simulated and experimental performances justify its suitability for grid-fed fan applications.","PeriodicalId":33288,"journal":{"name":"IET Energy Systems Integration","volume":"4 1","pages":"54-71"},"PeriodicalIF":2.4,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/esi2.12045","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47598735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Energy management for data centre microgrids considering co-optimisation of workloads and waste heat 考虑工作负载和废热协同优化的数据中心微电网能源管理

IF 2.4

IET Energy Systems Integration Pub Date : 2021-09-26 DOI: 10.1049/esi2.12044

Ming Tian, Haifeng Zhang, Hongyu Wu

引用次数: 1

Distributed control of thermostatically controlled load aggregators in multi-area power systems 多区域电力系统中恒热负荷聚集器的分布式控制

IF 2.4

IET Energy Systems Integration Pub Date : 2021-09-16 DOI: 10.1049/esi2.12041

Kaiwen Zeng, Haizhu Wang, Jianing Liu, Bin Lin, Bin Du, Yi You

{"title":"Distributed control of thermostatically controlled load aggregators in multi-area power systems","authors":"Kaiwen Zeng, Haizhu Wang, Jianing Liu, Bin Lin, Bin Du, Yi You","doi":"10.1049/esi2.12041","DOIUrl":"10.1049/esi2.12041","url":null,"abstract":"In modern power systems, the high penetration of renewable energy challenges system frequency regulation and stability. In such conditions, the demand-side loads can be aggregated and applied for power system frequency regulation. In this study, a dual-level distributed control framework is proposed for thermostatically controlled load (TCL) aggregators in multi-area load frequency control. In the higher control level, the leader of TCL aggregators in each control area is controlled by local and neighbouring area control errors. In the lower control level, multiple TCL aggregators are coupled via a leader-follower consensus control protocol to track the power reference from the area leader. As a result, the dual-level distributed controlled TCL aggregators can operate together with synchronous generators for frequency regulation in multi-area power systems. The proposed method is validated in a three-area power system under various cyber-physical conditions, including contingency and normal operation conditions, as well as communication failure and delay conditions.","PeriodicalId":33288,"journal":{"name":"IET Energy Systems Integration","volume":"3 4","pages":"498-507"},"PeriodicalIF":2.4,"publicationDate":"2021-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/esi2.12041","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41911364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2