2023 International Conference on Power Energy Systems and Applications (ICoPESA)最新文献_第8页

Feature Impacts on Coal Power Plant Reliability 特征对燃煤电厂可靠性的影响

2023 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2023-02-24 DOI: 10.1109/ICoPESA56898.2023.10140903

E. Mnukwa, P. Eboule, J. Pretorius

{"title":"Feature Impacts on Coal Power Plant Reliability","authors":"E. Mnukwa, P. Eboule, J. Pretorius","doi":"10.1109/ICoPESA56898.2023.10140903","DOIUrl":"https://doi.org/10.1109/ICoPESA56898.2023.10140903","url":null,"abstract":"Various strategic management planning in South Africa have revolved around reliability of coal fired power generating plants. This is due to challenging factors of power plant reliability like aging infrastructure, low maintenance, unplanned outages, forced outages and increasing electricity demand in South Africa. The method used in this study to collect data is qualitative and quantitative research methods. Qualitative research method is used to collect information by conducting Delphi technique survey from technical personnel which are Managers, Engineers, Technologists, Technician as well as Artisans. Quantitative research method is utilized to collect information from power utility’s historical plant breakdowns and failure records. Historical records are retrieved from database, plant failure reports and SAP plant maintenance program. Results indicates that forced draught plant contributed 33,61% unplanned capability loss factor for the month of September 2021, followed by the milling plant with 20,08% energy loss. Moreover, fabric filter plant contributed 16,25% to unplanned capability loss factor and mills control contributed 7,74% to energy losses. The results also indicated that poor maintenance, spares unavailability, lack of training and skills shortages are some of the major contributing factors to plant breakdowns and failures. In addition, the study has revealed that corrective maintenance strategy used by the power utility is futile, ineffective, and inappropriate strategy","PeriodicalId":127339,"journal":{"name":"2023 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114644094","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

Research on Power Fluctuation Control of Photovoltaic Generator Sets Considering the Harmonic Distortion Rate 考虑谐波畸变率的光伏发电机组功率波动控制研究

2023 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2023-02-24 DOI: 10.1109/ICoPESA56898.2023.10140494

Hu Yan, B. Huang, Jing Hu, Kaihui Feng, L. Nana, Zihan Meng

{"title":"Research on Power Fluctuation Control of Photovoltaic Generator Sets Considering the Harmonic Distortion Rate","authors":"Hu Yan, B. Huang, Jing Hu, Kaihui Feng, L. Nana, Zihan Meng","doi":"10.1109/ICoPESA56898.2023.10140494","DOIUrl":"https://doi.org/10.1109/ICoPESA56898.2023.10140494","url":null,"abstract":"Harmonics in the power grid mainly come from photovoltaic (PV) equipment, and the impact of the harmonic distortion rate (THD) is ignored by conventional power fluctuation control methods, which results in a slow response to the output power of the generator sets and poor power fluctuation control. In this paper, a power fluctuation control method for PV generator sets that accounts for THD is proposed. The dynamic equations of each part of the system on axis d and q are calculated based on the topological structure of the PV generator set and its operating characteristics and consequently a PV generator system (genset system) model is established. Based on this model and THD on the non-harmonic source nodes, the weighted harmonics is determined using an entropy weights model and combined with the motor characteristics, the power fluctuation control of PV generator sets is realized by a proportional integral control method. The experimental results show that the proposed method provides faster power response and better power fluctuation control.","PeriodicalId":127339,"journal":{"name":"2023 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134187651","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

Operation Optimization Scheduling of Multi-energy System Based on Combined Power Supply of Cold, Heat and Electricity 基于冷热电联供的多能系统运行优化调度

2023 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2023-02-24 DOI: 10.1109/ICoPESA56898.2023.10141228

Siqi Ye, Jinman Luo, Jiaze Hu, Yu Tang, Hongjian Ding

引用次数: 0

A Lightweight Design on Mobile Power Supply with Fuel Cell Energy Storage Based on Modular Multilevel Converter 基于模块化多电平变换器的燃料电池储能移动电源轻量化设计

2023 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2023-02-24 DOI: 10.1109/ICoPESA56898.2023.10141396

Guanglin Sha, Yao Zhang, Jian Gao, Yunzhao Wu, Xiaofan Guo

引用次数: 0

Investigation of the Core's Vibration Characteristics of a Distribution Transformer 配电变压器铁芯振动特性的研究

2023 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2023-02-24 DOI: 10.1109/ICoPESA56898.2023.10140758

Xiao Chen

引用次数: 0

Research of EV Participation in Grid Peak Load Shaving Interaction Based on V2G Incentive Price 基于V2G激励价格的电动汽车参与电网调峰交互研究

2023 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2023-02-24 DOI: 10.1109/ICoPESA56898.2023.10140519

Tao Wang, Yuming Zhao, Mingyu Ma, Wenmeng Zhao, Jing Wang, Tian Mao, Zijun Liu

引用次数: 0

Optimization of Multi-microgrid Operation Based on Blockchain Technology and Multi-agent Reinforcement Learning 基于区块链技术和多智能体强化学习的多微网运行优化

2023 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2023-02-24 DOI: 10.1109/ICoPESA56898.2023.10140894

Zhonghao Sun, Ran Hao, Tianguang Lu, Mingqiang Wang

引用次数: 0

Equivalent Models and Identification of Performance Parameters for Primary Frequency Regulation of a TPP Unit TPP机组一次调频的等效模型及性能参数辨识

2023 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2023-02-24 DOI: 10.1109/ICoPESA56898.2023.10141489

Ziqi Liu, Xingwei Xu, Yi Shen, Kefei Wang, Yixuan Su, Weidong Li

{"title":"Equivalent Models and Identification of Performance Parameters for Primary Frequency Regulation of a TPP Unit","authors":"Ziqi Liu, Xingwei Xu, Yi Shen, Kefei Wang, Yixuan Su, Weidong Li","doi":"10.1109/ICoPESA56898.2023.10141489","DOIUrl":"https://doi.org/10.1109/ICoPESA56898.2023.10141489","url":null,"abstract":"In view of the problem that the existing primary frequency regulation evaluation method cannot accurately reflect the transient regulation process of the thermal power plant (TPP) unit after the disturbance, the primary frequency regulation control performance evaluation method based on the equivalent model is proposed. Combining with the existing low-order primary frequency regulation model, the proportional-inertia equivalent link is added. The parameter identification approach of proportional and inertia time constants of this equivalent link and the analytical expression of the benchmark power of primary frequency regulation control performance evaluation based on the equivalent model are given. The analysis results show that, compared with the existing static evaluation methods, the proportional and inertia time constants can reflect the transient characteristics of the primary frequency regulation of the thermal unit, and the primary frequency regulation benchmark power based on the equivalent model is more consistent with the theoretical primary frequency regulation process.","PeriodicalId":127339,"journal":{"name":"2023 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128010187","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

Electricity Generation Mix Considering Carbon Prices and Inter-regional Power Import 考虑碳价和区域间电力进口的发电组合

2023 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2023-02-24 DOI: 10.1109/ICoPESA56898.2023.10140555

Aiqiang Pan, Zhen Dong, Hui Qu

引用次数: 0

Microgrid Cluster Division and Optimal Allocation Method Considering Cooperative Increment 考虑协同增量的微电网集群划分及优化分配方法

2023 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2023-02-24 DOI: 10.1109/ICoPESA56898.2023.10140464

Hongbin Zhang, Weisheng Liu, Shumin Sun, YU Peng, Chuanzhi Cui

{"title":"Microgrid Cluster Division and Optimal Allocation Method Considering Cooperative Increment","authors":"Hongbin Zhang, Weisheng Liu, Shumin Sun, YU Peng, Chuanzhi Cui","doi":"10.1109/ICoPESA56898.2023.10140464","DOIUrl":"https://doi.org/10.1109/ICoPESA56898.2023.10140464","url":null,"abstract":"In the distribution network with a high proportion of renewable energy penetration, the cooperative operation of multiple microgrids can constitute a microgrid cluster. The capacity optimization of distributed generator (DG) and energy storage system (ESS) of each microgrid in the microgrid cluster is realized, which can improve distribution network economic operation. This paper proposes a microgrid cluster division and optimal allocation method considering cooperative increment: The microgrid planning model considering renewable energy consumption is established, achieving the lowest the lowest annual equivalent cost of each microgrid. Considering the node coupling degree, a regional distribution network cluster partition is presented. Microgrids that are in the same partition and have cooperative increments for joint operation are divided into microgrid clusters. Finally, a two-layer microgrid cluster optimization model is established for joint planning of microgrid cluster. The objective of upper layer model is to optimize capacity allocation of microgrid cluster, and the lower layer is a joint optimization model considering the operation cost of microgrid cluster. The effectiveness and superiority of the proposed microgrid cluster planning method is verified by simulation results of the 42-node system reasonably expanded from IEEE-33 system. The results show that the microgrid cluster planning can achieve better economic operation of distribution network and the nearby consumption of high proportion of renewable energy.","PeriodicalId":127339,"journal":{"name":"2023 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124516991","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