IET Energy Systems Integration最新文献_第7页

A matrix game-based coordinated optimisation method of distribution networks with multiple flexible resources 基于矩阵博弈的多灵活资源配电网络协调优化方法

IF 1.6

IET Energy Systems Integration Pub Date : 2023-11-30 DOI: 10.1049/esi2.12127

Yingdong An, Yixin Liu, Li Guo, Xinchen Li, Xiangjun Li, Xuecui Jia, Tengxin Wang, Min Zhang

{"title":"A matrix game-based coordinated optimisation method of distribution networks with multiple flexible resources","authors":"Yingdong An, Yixin Liu, Li Guo, Xinchen Li, Xiangjun Li, Xuecui Jia, Tengxin Wang, Min Zhang","doi":"10.1049/esi2.12127","DOIUrl":"10.1049/esi2.12127","url":null,"abstract":"The ‘Electric energy substitution’ project in rural areas of northern China aims to replace coal-fired heating with electric heating. However, this could potentially lead to congestion problems on the local distribution networks (DNs) due to an increase in heating loads. Instead of expanding the lines, flexible resources such as microgrids (MGs) and heat pumps (HPs) could provide auxiliary services in a more cost-effective manner. A bi-level optimisation model that coordinates DNs, MGs, and HP clusters is proposed to address this issue. In the lower level, MGs and HP clusters provide auxiliary services through competitive bidding to maximise their own income over multiple periods, considering a series of technical operational constraints and comfort constraints. In the upper level, DNs clear the market based on the bidding information to minimise its operational costs while guaranteeing network constraints. The bi-level optimisation model is formulated as a multi-agent matrix game problem, and the Win or Learn Fast-Policy Hill-climbing algorithm is used to achieve fast market equilibrium in a decentralised manner. Simulation results demonstrate that the proposed method can improve the revenue of MGs by up to 2.6 times compared to the single period matrix game method, and reduce the convergence time by up to 81.3% compared to the multi-agent Q-learning method.","PeriodicalId":33288,"journal":{"name":"IET Energy Systems Integration","volume":"6 3","pages":"283-296"},"PeriodicalIF":1.6,"publicationDate":"2023-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/esi2.12127","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139200159","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

Honeycomb integrated energy distribution system: Networking structure and operation mode 蜂巢式综合能源分配系统：网络结构和运行模式

IF 1.6

IET Energy Systems Integration Pub Date : 2023-11-27 DOI: 10.1049/esi2.12126

Guoqiang Zu, Chenhui Song, Xiaolong Jin

{"title":"Honeycomb integrated energy distribution system: Networking structure and operation mode","authors":"Guoqiang Zu, Chenhui Song, Xiaolong Jin","doi":"10.1049/esi2.12126","DOIUrl":"10.1049/esi2.12126","url":null,"abstract":"The distribution system is undergoing a transformation into a platform that integrates multiple energy sources, including electricity, gas, and heat, to facilitate point-to-point energy transmission. However, the existing tree radiation structure of the distribution system is inadequate to meet the demand. To address this, this paper proposes the networking structure and operation mode of the honeycomb integrated energy distribution system (HIEDS). Firstly, the paper outlines the network structure of HIEDS, which includes flexible interconnection modes between micro-networks and key equipment, such as the integrated energy stations. Secondly, two typical operation modes of HIEDS with the objectives of operation economy and load balancing are proposed, respectively. Finally, the operation characteristics of HIEDS in different scenarios are analysed through case studies, and HIEDS is compared with other typical interconnection structures of micro-energy networks further. The results demonstrate that HIEDS provides a more flexible energy supply mode, which can improve the operation economy and reliability of the distribution system. This study will provide a theoretical basis for optimising the structure and operation mode of future integrated energy distribution systems.","PeriodicalId":33288,"journal":{"name":"IET Energy Systems Integration","volume":"6 3","pages":"268-282"},"PeriodicalIF":1.6,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/esi2.12126","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139234754","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

Condition monitoring of permanent magnet AC machines for all-electric transportation systems: State of the art 用于全电动交通系统的永磁交流电机的状态监测：技术现状

IF 1.6

IET Energy Systems Integration Pub Date : 2023-11-15 DOI: 10.1049/esi2.12125

Adil Usman, Bharat Singh Rajpurohit

{"title":"Condition monitoring of permanent magnet AC machines for all-electric transportation systems: State of the art","authors":"Adil Usman, Bharat Singh Rajpurohit","doi":"10.1049/esi2.12125","DOIUrl":"10.1049/esi2.12125","url":null,"abstract":"The current state of the art on emerging and efficient techniques for condition monitoring of permanent magnet (PM) alternating-current (AC) machines deployed in electric vehicle (EV) applications is presented. The discussion includes the most common and specific types of faults in PM motors, such as rotor demagnetisation and stator inter-turn faults, respectively. Fault indicators, such as voltage (vs) and current (is) signals and machine signatures based on motor back electromotive force (EMF) (EB) and magnetic flux (ϕ), are taken into account as a measuring quantity in diagnosing motor faults. Other signatures, including thermal analysis, acoustic noise, and vibrations, are also illustrated as some of the emerging techniques in estimating the performance of EV motors while under operations. In addition, various fault modelling methods, condition monitoring techniques, and comprehensive approaches applied in diagnosing the effect of machine faults during its incipient stages are illustrated. Since most of the fault diagnostic techniques discussed here include only machine-based quantities as fault indices/indicators, the provided solutions are therefore found to be more reliable and accurate for diagnosing the motor faults. This comprehensive review study is inclusive of the existing fault diagnostic techniques, which are currently employed in industrial and commercial practices, in addition to the new methodologies proposed by the authors. All the given condition monitoring schemes therefore seem significantly vital in estimating the state of health of PM AC machines while under operation in all-electric transportation systems.","PeriodicalId":33288,"journal":{"name":"IET Energy Systems Integration","volume":"6 3","pages":"213-229"},"PeriodicalIF":1.6,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/esi2.12125","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139271441","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

Risk modelling of hydrogen-enriched natural gas on pipelines and gas-electric coupled systems 富氢天然气在管道和气电耦合系统中的风险建模

IF 1.6

IET Energy Systems Integration Pub Date : 2023-11-02 DOI: 10.1049/esi2.12124

Kun Yang, Zhihui Zhao, Anan Zhang, Wei Yang, Qian Li, Shan Zeng, Gaoqiang Peng

{"title":"Risk modelling of hydrogen-enriched natural gas on pipelines and gas-electric coupled systems","authors":"Kun Yang, Zhihui Zhao, Anan Zhang, Wei Yang, Qian Li, Shan Zeng, Gaoqiang Peng","doi":"10.1049/esi2.12124","DOIUrl":"10.1049/esi2.12124","url":null,"abstract":"The use of natural gas pipeline networks to transmit hydrogen energy is an important form of hydrogen energy utilisation. The coupling of hydrogen-enriched natural gas pipeline network and power grid involves the energy conversion of electricity-hydrogen-electricity, so the assessment is crucial because the system is complex, and the hazards to the system can be identified. This paper proposes a risk assessment method for gas-electric coupling of hydrogen-enriched natural gas pipeline networks and a three-stage risk assessment model to assess the life cycle risk of natural gas pipelines; a material energy-based risk transfer model considering gas-electric coupling is proposed to describe the risk transfer process of hydrogen-enriched natural gas between the gas network and the grid. By comparing and analysing the risk of natural gas blending ratio to the pipeline and the risk of pipeline pressure to the pipeline, the validity of the model is verified, which provides safety support for the connection of the natural gas pipeline system to the grid and ensures the efficient use of hydrogen energy.","PeriodicalId":33288,"journal":{"name":"IET Energy Systems Integration","volume":"6 3","pages":"253-267"},"PeriodicalIF":1.6,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/esi2.12124","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135934340","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

Application of data-driven methods in power systems analysis and control 数据驱动方法在电力系统分析和控制中的应用

IF 1.6

IET Energy Systems Integration Pub Date : 2023-10-26 DOI: 10.1049/esi2.12122

Otavio Bertozzi, Harold R. Chamorro, Edgar O. Gomez-Diaz, Michelle S. Chong, Shehab Ahmed

{"title":"Application of data-driven methods in power systems analysis and control","authors":"Otavio Bertozzi, Harold R. Chamorro, Edgar O. Gomez-Diaz, Michelle S. Chong, Shehab Ahmed","doi":"10.1049/esi2.12122","DOIUrl":"10.1049/esi2.12122","url":null,"abstract":"The increasing integration of variable renewable energy resources through power electronics has brought about substantial changes in the structure and dynamics of modern power systems. In response to these transformations, there has been a surge in the development of tools and algorithms leveraging real-time computational power to enhance system operation and stability. Data-driven methods have emerged as practical approaches for extracting reliable representations from non-linear system data, enabling the identification of dynamics and system parameters essential for analysing stability and ensuring reliable operation. This study provides a comprehensive review of recent contributions in the literature concerning the application of data-driven identification, analysis, and control methods in various aspects of power system operation. Specifically, the focus is on frequency support, power oscillation detection, and damping, which play crucial roles in maintaining grid stability. By discussing the challenges posed by parametric uncertainties, load and source variability, and reduced system inertia, this review sheds light on the opportunities for future research endeavours.","PeriodicalId":33288,"journal":{"name":"IET Energy Systems Integration","volume":"6 3","pages":"197-212"},"PeriodicalIF":1.6,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/esi2.12122","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134906451","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

The computation of the air conditioning loads life loss and its application to demand response 空调负荷寿命损失的计算及其在需求响应中的应用

IF 1.6

IET Energy Systems Integration Pub Date : 2023-10-24 DOI: 10.1049/esi2.12121

Zhiwei Li, Wenhao Hu, Zhihan Cong, Shuqiang Zhao

{"title":"The computation of the air conditioning loads life loss and its application to demand response","authors":"Zhiwei Li, Wenhao Hu, Zhihan Cong, Shuqiang Zhao","doi":"10.1049/esi2.12121","DOIUrl":"10.1049/esi2.12121","url":null,"abstract":"Air conditioning loads (ACLs) represent an increasing proportion of power system loads, offering significant potential for optimised scheduling and active participation in demand response (DR) programs. While many studies have focused on ON/OFF control schemes that satisfy system requirements, few have addressed quantifying the life loss of ACLs from the user perspective. To address this gap, a quantitative model of ACL life loss is established and an optimal scheduling model is developed for ACLs participating in DR that incorporates the cost of life loss. The relationship between life loss and refrigeration power is a complex non-linear high-order fractional function that cannot be solved by commercial solvers. Therefore, a bi-objective multi-weight optimisation algorithm is proposed with a complex non-linear fraction based on the Dinkelbach algorithm and its feasibility through mathematical examples is verified. Finally, a numerical example based on the IEEE 39-bus test system is provided to demonstrate the feasibility of the model and the effectiveness of the proposed solution method.","PeriodicalId":33288,"journal":{"name":"IET Energy Systems Integration","volume":"6 3","pages":"242-252"},"PeriodicalIF":1.6,"publicationDate":"2023-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/esi2.12121","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135322535","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

Investigation of active voltage support control approach of DC distribution networks based on virtual inertia coordination 基于虚拟惯性协调的直流配电网主动电压支持控制方法研究

IF 2.4

IET Energy Systems Integration Pub Date : 2023-10-20 DOI: 10.1049/esi2.12123

Lei Chen, Yuqi Jiang, Zekai Zhao, Shencong Zheng, Yifei Li, Hongkun Chen

{"title":"Investigation of active voltage support control approach of DC distribution networks based on virtual inertia coordination","authors":"Lei Chen, Yuqi Jiang, Zekai Zhao, Shencong Zheng, Yifei Li, Hongkun Chen","doi":"10.1049/esi2.12123","DOIUrl":"10.1049/esi2.12123","url":null,"abstract":"DC distribution networks (DCDNs) possess the advantages of high power efficiency, low operation loss, and favourable control flexibility, and are regarded as an essential form of future power distribution systems. In order to increase the voltage transient performance of DCDNs against disturbances, this paper proposes a methodology for realising the active voltage support control of DCDNs based on virtual inertia coordination. Firstly, the impact of the inertia of DCDNs towards the transient voltage change is analysed, and the active voltage support mechanism considering the variable droop inertia control and virtual DC motor inertia (VDCMI) control is explored. Then, a time sequence coordination strategy based on the voltage grading of DCDNs is developed, and an adaptive inertia coefficient is designed to achieve the inertia adjustment in terms of the voltage sag and recovery processes. Using MATLAB/Simulink, a detailed model of the double-terminal DCDNs is created to check the efficacy of the proposed approach. Different voltage disturbance scenarios are imitated, and the comparative simulations demonstrate that the proposed approach can fully utilise the inertia potential of the DCDNs to suppress the voltage sag and smooth the voltage recovery procedure. The proposed method's validity and feasibility can be well validated.The cover image is based on the Original Article Investigation of active voltage support control approach of DC distribution networks based on virtual inertia coordination by Lei Chen et al., https://doi.org/10.1049/esi2.12123.","PeriodicalId":33288,"journal":{"name":"IET Energy Systems Integration","volume":"6 2","pages":"117-128"},"PeriodicalIF":2.4,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/esi2.12123","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135618006","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

Current sharing control strategy with uncertainties and network attacks for electric vehicle charging station 具有不确定性和网络攻击的电动汽车充电站电流共享控制策略

IF 1.6

IET Energy Systems Integration Pub Date : 2023-10-18 DOI: 10.1049/esi2.12120

Xu Tian, Chuanyu Jiang, Benhua Qian, Rui Wang

{"title":"Current sharing control strategy with uncertainties and network attacks for electric vehicle charging station","authors":"Xu Tian, Chuanyu Jiang, Benhua Qian, Rui Wang","doi":"10.1049/esi2.12120","DOIUrl":"10.1049/esi2.12120","url":null,"abstract":"Although the electric vehicle supplied through distributed generators (DGs) is one of the most promising methods to reduce carbon emission and has been widely studied, the accurate current sharing regarding multi-bus DC charging stations considering uncertainties and network attacks is rarely studied. Based on this, a fully distributed current sharing control strategy is presented, which can improve the reliability of system under denial of service (DoS). Firstly, the DC charging station system (DCCSS) with uncertainties is modelled. Primary control is designed to provide stable voltage and inaccurate current sharing. Furthermore, the state-space function considering power coupling among different DC buses is built, which lays the foundation for the design of the following control. Then, the model of DoS attacks is proposed. Based on this, the fully distributed consensus control is proposed to achieve the accurate current sharing for DCCSS under DoS. Meanwhile, a method for solving the control gain without global information is given and proved. Moreover, it can be solved by LMI toolbox. As a comparison, a common control strategy is introduced that only considers the uncertainties. Finally, the feasibility of the proposed method is verified through comparison of simulation results.","PeriodicalId":33288,"journal":{"name":"IET Energy Systems Integration","volume":"6 3","pages":"230-241"},"PeriodicalIF":1.6,"publicationDate":"2023-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/esi2.12120","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135889900","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

Influence mechanism and virtual power system stabiliser method of virtual synchronous generator for low-frequency oscillation of power system 虚拟同步发电机对电力系统低频振荡的影响机制和虚拟电力系统稳定器方法

IF 2.4

IET Energy Systems Integration Pub Date : 2023-10-13 DOI: 10.1049/esi2.12119

Haixin Wang, Yan Hao, Haiwen He, Henan Dong, Shengyang Lu, Guanfeng Zhang, Junyou Yang, Zhe Chen

引用次数: 0

Data-driven power system dynamic security assessment under adversarial attacks: Risk warning based interpretation analysis and mitigation 对抗性攻击下数据驱动的电力系统动态安全评估：基于风险预警的解释分析与缓解

IF 2.4

IET Energy Systems Integration Pub Date : 2023-10-07 DOI: 10.1049/esi2.12118

Zhebin Chen, Chao Ren, Yan Xu, Zhao Yang Dong, Qiaoqiao Li

{"title":"Data-driven power system dynamic security assessment under adversarial attacks: Risk warning based interpretation analysis and mitigation","authors":"Zhebin Chen, Chao Ren, Yan Xu, Zhao Yang Dong, Qiaoqiao Li","doi":"10.1049/esi2.12118","DOIUrl":"10.1049/esi2.12118","url":null,"abstract":"Power system dynamic security assessment (DSA) has long been essential for protecting the system from the risk of cascading failures and wide-spread blackouts. The machine learning (ML) based data-driven strategy is promising due to its real-time computation speed and knowledge discovery capacity. However, ML algorithms are found to be vulnerable against well-designed malicious input samples that can lead to wrong outputs. Adversarial attacks are implemented to measure the vulnerability of the trained ML models. Specifically, the targets of attacks are identified by interpretation analysis that the data features with large SHAP values will be assigned with perturbations. The proposed method has the superiority that an instance-based DSA method is established with interpretation of the ML models, where effective adversarial attacks and its mitigation countermeasure are developed by assigning the perturbations on features with high importance. Later, these generated adversarial examples are employed for adversarial training and mitigation. The simulation results present that the model accuracy and robustness vary with the quantity of adversarial examples used, and there is not necessarily a trade-off between these two indicators. Furthermore, the rate of successful attacks increases when a greater bound of perturbations is permitted. By this method, the correlation between model accuracy and robustness can be clearly stated, which will provide considerable assistance in decision making.","PeriodicalId":33288,"journal":{"name":"IET Energy Systems Integration","volume":"6 1","pages":"62-72"},"PeriodicalIF":2.4,"publicationDate":"2023-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/esi2.12118","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135254617","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