Musa Khan, Haishun Sun, Yingmeng Xiang, Di Shi, Yuling Wang
The balancing of generation and demand, known as Load Frequency Control (LFC) is a key challenge as always, and currently it requires further attention due to the intermittent Renewable Energies (RE) and new form of Loads, Electric Vehicles (EV) in the grid. An effort is put forward by proposing a model where these worrisome generation’ sources and loads can be integrated in the grid, while exploring their strengths. Beside the Conventional Sources (CS), in this model EVs take part in the LFC and RE provides inertial response. The multi objective LFC problem, is synthesised as a robust mixed H2/H∞ based on static output feedback control problem addressed by iterative linear matrix inequality technique. As a test case, a three-area system having EVs, REs and CSs, is simulated in Matlab/Simulink. The EVs, which pose a challenge as an extra load, would be managed to avoid the need of too much new installation of CS and would help the integration of REs like wind and solar energy in the grid Nomenclature Abbreviation ACE AGC DER EV ILMI LFC PFC PI RE SOC SOF V2G Genco Area Control Error Automatic Generation Control Distributed Energy Resources Electric Vehicles Iterative Linear Matrix Inequality Load Frequency Control Primary Frequency Control Proportional and Integral Renewable Energies State of Charge Static Output Feedback Control Vehicle to Grid and vice versa Generation Company Variables, Constants, and Indices i n αi Indexing Power System Areas Number of generation sources Participation Factor μi ∆f ∆Pc ∆PL ∆Pm/∆Pt ∆Ptie_line B D Ɛ H KEV Lss, Lm, Rr, Rs Ki Pchar Pdischar Pdown Pup R SOCneed t(s) Tdep Tg Tt Tz2w2 Tz∞w∞ γ2| γ2 γ∞| γ∞ Weighting coefficient Frequency Deviation Controller Output Load Changes Generator Output Tie line deviation Power Frequency Bias Factor Load Damping Constant Small Positive Number System Inertia Electric Vehicle Gain Constant Stator self and magnetizing Inductance Rotor and Stator Resistance Controller Charging Power Discharging Power Down Regulation Up Regulation Droop Control Constant Customer need, SOC Time (seconds) Leaving Time Governor time Constant Turbine Time Constant Transfer function: w2 input to z2 output Transfer function: w∞ input to z∞ output Optimal H2 Performance index related to H2/H∞ DOF and SOF respectively Optimal H∞ Performance index related to H2/H∞ DOF and SOF respectively
发电和需求的平衡，即负荷频率控制(LFC)一直是一个关键的挑战，目前由于间歇性可再生能源(RE)和新型负荷——电动汽车(EV)在电网中的应用，需要进一步关注。通过提出一个模型，这些令人担忧的发电源和负荷可以整合到电网中，同时探索它们的优势，提出了一项努力。在该模型中，除了常规源(CS)外，电动汽车还参与LFC, RE提供惯性响应。将多目标LFC问题综合为基于静态输出反馈控制的鲁棒混合H2/H∞问题，采用迭代线性矩阵不等式技术求解。作为测试用例，在Matlab/Simulink中对一个由电动汽车、REs和CSs组成的三区域系统进行了仿真。电动汽车作为额外的负荷构成了挑战，将能够避免需要太多的新CS安装，并有助于风能和太阳能等可再生能源在电网中的整合术语缩写ACE AGC DER EV ILMI LFC PFC PI RE SOC SOF V2G发电面积控制误差自动发电控制分布式能源电动汽车迭代线性矩阵不等式负载频率控制一次频率控制比例和积分可再生能源充电状态静态输出反馈控制车辆到电网，反之反之发电公司变量、常数和指数i αi指标化电力系统面积发电源数量参与因子μi∆f∆Pc∆PL∆Pm/∆Pt∆Ptie_line B D Ɛ H KEV Lss, Lm, Rr，Rs Ki Pchar Pdischar p下小狗R SOCneed t (s) Tdep Tg Tt Tz2w2 Tz w∞∞γ2 |γ2γ∞|γ∞加权系数频率偏移控制器输出负载改变发电机输出结线偏差电源频率偏差因子载荷阻尼常数小的正数系统惯性电动汽车获得不断的自我和磁化电感定子转子和定子电阻控制器充电功率放电功率下监管监管下垂控制恒定的客户需求,SOC时间(秒)离开时间调速器时间常数涡轮时间常数传递函数:w2输入到z2输出传递函数:w∞输入到z∞输出分别与H2/H∞DOF和SOF相关的最优H2性能指标分别与H2/H∞DOF和SOF相关的最优H∞性能指标
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Shu Liu, Zhiyu Zhang, Xiangjing Su, Yan Song, Shuxin Tian
{"title":"Review of Abnormal Data Identification and Correction Techniques in Active Distribution Networks","authors":"Shu Liu, Zhiyu Zhang, Xiangjing Su, Yan Song, Shuxin Tian","doi":"10.1049/cp.2019.0533","DOIUrl":"https://doi.org/10.1049/cp.2019.0533","url":null,"abstract":"","PeriodicalId":319387,"journal":{"name":"8th Renewable Power Generation Conference (RPG 2019)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131081207","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}
Zheng Yiming, Wenhao Wang, Chunyang Gong, Li Chen, Xiang Sun, Du Wei, Huang Zhongsheng
{"title":"On-Line Diagnosis Method for Transformer Winding Deformation Based on Running Voltage and Current Correlation Mining","authors":"Zheng Yiming, Wenhao Wang, Chunyang Gong, Li Chen, Xiang Sun, Du Wei, Huang Zhongsheng","doi":"10.1049/cp.2019.0328","DOIUrl":"https://doi.org/10.1049/cp.2019.0328","url":null,"abstract":"","PeriodicalId":319387,"journal":{"name":"8th Renewable Power Generation Conference (RPG 2019)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134244734","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}
{"title":"Power control and experiment of 2MW/10kV cascaded h-bridge power conversion system for battery energy storage system","authors":"K. Tian, S. Ali, Zhong Huang, Z. Ling","doi":"10.1049/cp.2019.0378","DOIUrl":"https://doi.org/10.1049/cp.2019.0378","url":null,"abstract":"","PeriodicalId":319387,"journal":{"name":"8th Renewable Power Generation Conference (RPG 2019)","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130975545","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}
{"title":"Research on Control Scheme of Single Phase High Efficiency Bridgeless PFC Based on GaN","authors":"Kang Jun","doi":"10.1049/cp.2019.0409","DOIUrl":"https://doi.org/10.1049/cp.2019.0409","url":null,"abstract":"","PeriodicalId":319387,"journal":{"name":"8th Renewable Power Generation Conference (RPG 2019)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131258564","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}
C. Hua, Zhou Bo, Fan Kewei, Song Gaohong, Zhang Pengzheng, Guo Jinhui, Duan Weiyi
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