2018 International Conference on Power System Technology (POWERCON)最新文献_第5页

A Method for Power System Static Stability Situation Assessment Based on Scale Invariant Feature Transform 基于尺度不变特征变换的电力系统静态稳定状态评估方法

2018 International Conference on Power System Technology (POWERCON) Pub Date : 2018-11-01 DOI: 10.1109/POWERCON.2018.8601789

Yi Tian, Gan-gui Yan, Dao-wei Liu, Baixue Li, Rui Zhang, Hongying Yang, Gao-shang Zhao

引用次数: 1

A Switch-controlled Hybrid Power Quality Compensator for All-day Power Quality Compensation in AC-DC Networks at Different Times of Day 一种用于交直流网络不同时段全天电能质量补偿的开关控制混合电能质量补偿器

2018 International Conference on Power System Technology (POWERCON) Pub Date : 2018-11-01 DOI: 10.1109/POWERCON.2018.8602142

Yizheng Xu, Xujiang Chen, Min Liu, Fang Tian, Shuchang Yan

{"title":"A Switch-controlled Hybrid Power Quality Compensator for All-day Power Quality Compensation in AC-DC Networks at Different Times of Day","authors":"Yizheng Xu, Xujiang Chen, Min Liu, Fang Tian, Shuchang Yan","doi":"10.1109/POWERCON.2018.8602142","DOIUrl":"https://doi.org/10.1109/POWERCON.2018.8602142","url":null,"abstract":"The adoption of power electronic devices in most AC-DC power networks have caused power quality (PQ) issues such as harmonics, unbalance and low power factor. These issues should be solved by the most suitable compensation technology to guarantee the best compensation result. It is common that more than one PQ issue will be caused at a supply bus, usually with some issues affecting more than the others at different time of the day which depends on load flow and load compositions. Therefore, different compensation technologies should be used at different time of day to ensure the best compensation result at all time. This paper designs a switch-controlled hybrid power quality compensator to guarantee all-day best compensation for AC-DC networks. The hybrid PQ compensator is composed of multiple compensators with different functionalities and controlled by switches. The subjective-objective methodology (SOM) is used to determine which compensation technologies should be adopted at different times of day. Based on the decision, the switches will behave and the corresponding compensators will be connected or disconnected for compensation.","PeriodicalId":260947,"journal":{"name":"2018 International Conference on Power System Technology (POWERCON)","volume":"334 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124304131","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

Design of a centralized management system based on mobile modular on-board batteries 基于移动模块化车载电池集中管理系统的设计

2018 International Conference on Power System Technology (POWERCON) Pub Date : 2018-11-01 DOI: 10.1109/POWERCON.2018.8602136

Haipeng Mao, Yongjun Zhang, Haolin Wang

引用次数: 1

Alarm Analysis for Nuclear Power Plant by a Functional Modeling Approach 基于功能建模方法的核电厂报警分析

2018 International Conference on Power System Technology (POWERCON) Pub Date : 2018-11-01 DOI: 10.1109/POWERCON.2018.8601994

Xianguo Qing, Yang Zhao, Wei Li, Ling Zhou, Yan Xiong, Bo Cheng

引用次数: 0

Study on Cyber Security Risk Assessment of Digital Instrumentation &Control System of Nuclear Power Plant 核电厂数字仪表控制系统网络安全风险评估研究

2018 International Conference on Power System Technology (POWERCON) Pub Date : 2018-11-01 DOI: 10.1109/POWERCON.2018.8601978

Dongbo Liu, Yujuan Chen, Ji Shi, D. Chen

{"title":"Study on Cyber Security Risk Assessment of Digital Instrumentation &Control System of Nuclear Power Plant","authors":"Dongbo Liu, Yujuan Chen, Ji Shi, D. Chen","doi":"10.1109/POWERCON.2018.8601978","DOIUrl":"https://doi.org/10.1109/POWERCON.2018.8601978","url":null,"abstract":"The digital instrumentation and control (I&C) systems have been widely used in operating and new nuclear power plants (NPPs). The application of digital computers, communication systems and network technologies in digital I&C system of NPP has brought many benefits, including high performance and convenient maintainability. However, the digital I&C system of NPP has many cyber security risks that may lead to serious hazards. Cyber security risk assessment for digital I&C system of NPP has become more crucial. This study presents the general configuration and functions of digital I&C system of NPP. The digital asset classification, data flow and the security level of the counter measures are given based on the cyber security defense-in-depth model. The factors of asset, threat and vulnerability of digital I&C system are identified in detail. The cyber security risks of digital I&C system of NPP are analyzed for the process system interface level, automatic control and protection level, control and supervisory level, and plant information management level. The cyber security protection scheme of digital I&C system of NPP is designed to cope with the potential cyber security risks. The risk assessment contents of the every stage of cyber security full life cycle are presented. The cyber security risk assessment flow and risk assessment method for digital I&C system of NPP are proposed.","PeriodicalId":260947,"journal":{"name":"2018 International Conference on Power System Technology (POWERCON)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128155906","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: 3

Research on Ultra-Low Frequency Oscillation Caused by Hydro Power in Hydro-Dominant Power System 水电主导电力系统中水电引起的超低频振荡研究

2018 International Conference on Power System Technology (POWERCON) Pub Date : 2018-11-01 DOI: 10.1109/POWERCON.2018.8601741

Xiaoyan Han, Q. Jiang, Tianqi Liu, Baohong Li, L. Ding, Gang Chen

引用次数: 9

Day-ahead Generation Scheduling Method for New Energy and Hydro Power System 新能源水电系统日前发电调度方法

2018 International Conference on Power System Technology (POWERCON) Pub Date : 2018-11-01 DOI: 10.1109/POWERCON.2018.8602031

Jixian Qu, Wenhui Shi, Kui Luo, C. Feng, Jianan Mou

{"title":"Day-ahead Generation Scheduling Method for New Energy and Hydro Power System","authors":"Jixian Qu, Wenhui Shi, Kui Luo, C. Feng, Jianan Mou","doi":"10.1109/POWERCON.2018.8602031","DOIUrl":"https://doi.org/10.1109/POWERCON.2018.8602031","url":null,"abstract":"When the stochastic and fluctuant new energy integrates to the power system, it increases conventional units’ burden. On the other hand, some conventional units are replaced by new energy units, which lead to the decline in peak load regulation ability. In order to make full use of the water storage capacity of hydropower to improve system’s peak load regulation ability, this paper proposes a method of optimizing the day-ahead generation scheduling based on the coordinated operation of new energy and hydropower. This method comprehensively considers the constraints of hydro-plants generation constraints, power balance, unit output, new energy output prediction, and can prepare unit combinations and output plans. In the objective function, new energy accommodation is given greater weight. This will implicitly achieve the goal of the first priority of accommodating new energy and the second priority of accommodating hydropower, which can reduce the start-stopping of thermal power units and is particularly suitable for power systems with high start-up costs and high operating costs of thermal power units. The example results show that the method can make full use of hydropower and new energy to regulate peak load, which can not only promote accommodation of new energy and guarantee the safety of power safety, but also ensure the stability of thermal power plants operation and increase the economic efficiency of power system.","PeriodicalId":260947,"journal":{"name":"2018 International Conference on Power System Technology (POWERCON)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121741277","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

A Comparison Study on Intelligent Control Strategies of Power System Stabilizers 电力系统稳定器智能控制策略的比较研究

2018 International Conference on Power System Technology (POWERCON) Pub Date : 2018-11-01 DOI: 10.1109/POWERCON.2018.8602085

M. Kashif, Yunjian Peng, Weijie Sun

{"title":"A Comparison Study on Intelligent Control Strategies of Power System Stabilizers","authors":"M. Kashif, Yunjian Peng, Weijie Sun","doi":"10.1109/POWERCON.2018.8602085","DOIUrl":"https://doi.org/10.1109/POWERCON.2018.8602085","url":null,"abstract":"Power System Stabilizers(PSSs) are well-designed devices to measure and enforce improvements in synchronous generators’ system-stability, which offer overwhelmingly superior cost performance compared to other optimal reconstruction or enhancement of power systems. The techniques of PSSs have been focused by power industry and academic circles in many years. The paper presents a performance comparison of several advanced techniques based on Adaptive Fuzzy Control, Artificial Neural Network (ANN), Genetic Algorithm(GA) and Hybrid Artificial Intelligent(HAI), Fuzzy Logic and Particle Swarm Optimization(FLPSO) techniques. With their merits on dealing with PSSs’ implemental structures, models with unknown or variable parameters, we study the main indices to compare the performance of the referred intelligent techniques including simplicity of prototype, robustness and response speed, complexity of algorithm, flexibility in implementation and applicability to hybrid AVRs so on. The comparison results show that intelligent techniques improve PSSs comprehensive performance of being more effective and vigorous in damping out low frequency oscillations by overcoming inherent limitations in conventional control methodologies. Intelligent techniques could be especially considered in application of smart grid with large-scale grid-connected renewable energy power and random high power loads.","PeriodicalId":260947,"journal":{"name":"2018 International Conference on Power System Technology (POWERCON)","volume":"374 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121753007","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

Research on High Power PV Modular DC Boost System and Control Strategy 大功率光伏模块直流升压系统及控制策略研究

2018 International Conference on Power System Technology (POWERCON) Pub Date : 2018-11-01 DOI: 10.1109/POWERCON.2018.8601710

X. Xi, C. Xing, W. Yi, Guannan Wu

{"title":"Research on High Power PV Modular DC Boost System and Control Strategy","authors":"X. Xi, C. Xing, W. Yi, Guannan Wu","doi":"10.1109/POWERCON.2018.8601710","DOIUrl":"https://doi.org/10.1109/POWERCON.2018.8601710","url":null,"abstract":"Centralized DC boost conversion system is one of the key technologies to realize large-scale integration of PV generation. Firstly, in this paper, an active-clamp full-bridge boost converter is taken as the basic unit. Then a multi-modular converter centralized DC boosting system is proposed, which is suitable for $30mathrm{k}mathrm{V}/1.5mathrm{M}mathrm{W}$ PV grid-connected system. In this system, inputs and outputs of two active-clamp full-bridge boost converters are connected in parallel and series to form a sub-module. With input-parallel output-parallel (IPOP) scheme of multi-modules, the system can meet the demand of DC boost design with large capacity and high conversion ratio, and achieve the goal of power superposition at constant voltage. Subsequently, in order to solve the problem of input current sharing (ICS) and output voltage sharing (OVS) among sub-modules, a DC voltage sharing and current sharing control strategy is proposed. Finally, a real-time simulation model of $pm 30mathrm{k}mathrm{V}/1.5mathrm{M}mathrm{W}$ PV modular DC boost system is built in the RT-LAB environment. Effectiveness of the structure and control strategy is validated by the simulation results.","PeriodicalId":260947,"journal":{"name":"2018 International Conference on Power System Technology (POWERCON)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115798306","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 Comprehensive Evaluation Method and Incentive Mechanism for Demand Response 需求响应的综合评价方法与激励机制

2018 International Conference on Power System Technology (POWERCON) Pub Date : 2018-11-01 DOI: 10.1109/POWERCON.2018.8602333

Jinling Meng, Xin Huang, Yunhe Feng, B. Xu, Wei Zhao, Min Luo

引用次数: 5