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2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES)最新文献

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Model-Free Power Optimization of Wind Farm Based on Nelder-Mead Method 基于Nelder-Mead方法的风电场无模型功率优化
2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2020-09-15 DOI: 10.1109/SPIES48661.2020.9243030
Zhiwei Xu, H. Geng, B. Chu
{"title":"Model-Free Power Optimization of Wind Farm Based on Nelder-Mead Method","authors":"Zhiwei Xu, H. Geng, B. Chu","doi":"10.1109/SPIES48661.2020.9243030","DOIUrl":"https://doi.org/10.1109/SPIES48661.2020.9243030","url":null,"abstract":"Wake effects generated by wind turbines causes the strong wake interactions among turbines and thus significantly lowers the power output of wind farm. However, it is generally difficult to model the interactions between turbines due to its complexity. To mitigate the wake interactions and thus improve the power output of wind farm, this paper proposes a model-free optimization scheme. The power optimization problem of wind farm is divided into several optimization sub-problems according to the power efficiencies of wind farm under different wind directions. Each optimization sub-problem is solved approximately by developed power optimization algorithm based on Nelder-Mead method. Simulation results show that the proposed scheme can quickly and effectively improve the power output of wind farm in complex wind condition without modeling the wake interactions among the turbines.","PeriodicalId":244426,"journal":{"name":"2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116501370","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
An Optimal Preventive Maintenance Method for MMC based VSC-HVDC 基于MMC的VSC-HVDC最优预防性维护方法
2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2020-09-15 DOI: 10.1109/SPIES48661.2020.9242935
Chang Yuan, Dumeng Dai, Junqing Qiu, Lu Chen, Haitao Qu, Junzheng Cao
{"title":"An Optimal Preventive Maintenance Method for MMC based VSC-HVDC","authors":"Chang Yuan, Dumeng Dai, Junqing Qiu, Lu Chen, Haitao Qu, Junzheng Cao","doi":"10.1109/SPIES48661.2020.9242935","DOIUrl":"https://doi.org/10.1109/SPIES48661.2020.9242935","url":null,"abstract":"With the wide application of MMC in power system, its maintenance strategy has become an important issue. As time went by, traditional periodical maintenance will put the inverter at risk of downtime, the maintenance cycle of the condition-based-maintenance strategy of MMC will be greatly shortened, which will increase the maintenance cost. The maintenance strategy proposed in this paper finds the optimal cost of each maintenance cycle. Detailed numerical simulations verified the proposed maintenance strategy.","PeriodicalId":244426,"journal":{"name":"2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"147 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124698121","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
Stabilization of Power System including Wind Farm by Two-Step P and Q control of HVDC Interconnection Line 高压直流互联线路两步P、Q控制稳定含风电场电力系统
2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2020-09-15 DOI: 10.1109/SPIES48661.2020.9242936
Ayaka Nakamura, A. Umemura, R. Takahashi, J. Tamura, A. Sakahara, Fumihito Tosaka, R. Nakamoto
{"title":"Stabilization of Power System including Wind Farm by Two-Step P and Q control of HVDC Interconnection Line","authors":"Ayaka Nakamura, A. Umemura, R. Takahashi, J. Tamura, A. Sakahara, Fumihito Tosaka, R. Nakamoto","doi":"10.1109/SPIES48661.2020.9242936","DOIUrl":"https://doi.org/10.1109/SPIES48661.2020.9242936","url":null,"abstract":"Penetration of renewable energy sources, such as wind power generation and PV power generation, into the power systems has been increasing significantly. Especially, wind power generation has attracted attention due to their superior characteristics such as low cost and high energy conversion efficiency. However, the power system including large-scale wind farm (WF) can become unstable during a fault condition because WF can be decoupled due to the instantaneous voltage drop in accordance with the grid code of Fault Ride Through (FRT) requirement. This paper proposes a new two-step control strategy using High Voltage Direct Current (HVDC) interconnection line. The proposed system controls the active power and the reactive power delivered to the grid from the HVDC interconnection line during a fault condition. The effectiveness of the proposed method is confirmed by simulation analyses on PSCAD/EMTDC software.","PeriodicalId":244426,"journal":{"name":"2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128476337","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
Interval Forecasting of Hourly Electricity Spot Prices using Rolling Window Based Gaussian Process Regression 基于滚动窗高斯过程回归的小时现货电价区间预测
2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2020-09-15 DOI: 10.1109/SPIES48661.2020.9243096
N. Mehmood, N. Arshad
{"title":"Interval Forecasting of Hourly Electricity Spot Prices using Rolling Window Based Gaussian Process Regression","authors":"N. Mehmood, N. Arshad","doi":"10.1109/SPIES48661.2020.9243096","DOIUrl":"https://doi.org/10.1109/SPIES48661.2020.9243096","url":null,"abstract":"Electricity price forecasting is important to the energy companies in planning and decision making. Gaussian process (GP) regression is a powerful tool for probabilistic forecasts of time series data. In this paper, we employ GP regression for prediction interval (PI) based forecasting of electricity spot prices. At each hour of the day, a new parameter set is computed incorporating most recent available electricity price data. We compare performance of several kernels. Likelihood ratio (LR) test statistics are used to measure goodness of the out-of-sample forecasts. Results show that our scheme outperforms other schemes in literature. In one case, LR statistics are slightly better for an existing quantile regression averaging (QRA) based scheme .But QRA scheme employs 12 other forecasting schemes followed by performing regression on the forecasts by those 12 schemes. However, our results significantly better than other individual forecasting schemes such as ARX/SNARX and averaging schemes such as SIMPLE/LAD.","PeriodicalId":244426,"journal":{"name":"2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114203205","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
An Autonomous DG Controller Using Artificial Intelligence Approach for Voltage Control 一种基于人工智能的电压控制自主DG控制器
2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2020-09-15 DOI: 10.1109/SPIES48661.2020.9242928
Saifullah Shafiq, B. Khan, A. Al-Awami
{"title":"An Autonomous DG Controller Using Artificial Intelligence Approach for Voltage Control","authors":"Saifullah Shafiq, B. Khan, A. Al-Awami","doi":"10.1109/SPIES48661.2020.9242928","DOIUrl":"https://doi.org/10.1109/SPIES48661.2020.9242928","url":null,"abstract":"Most recently, solar photovoltaics (PVs) have gained the significant attention due to the considerable reduction in their manufacturing costs as well as the substantial advancements in power electronic converters. However, the widespread integration of rooftop PVs may arise several challenges, such as over-voltages and frequent tap operations. A proper control strategy is required to mitigate these issues. In this paper, a machine learning-based autonomous distributed generator (DG) control is proposed. The controller takes local measurements such as nodal voltage and its sensitivity to changes in load and/or power, and determines the power cap. The controller is trained on different loading conditions to incorporate daily, monthly, and yearly load variations. Simulation results show th at the proposed controller effectively regulates the system voltages as defined by the ANSI C84.1-2016 standard. Moreover, it ensures the fairness among the DGs available at different locations in the distribution system without the need of any communication infrastructure.","PeriodicalId":244426,"journal":{"name":"2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131356937","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
Mitigation of Oscillations in SMIB using a Novel Farmland Fertility Optimization based PIDPSS 基于PIDPSS的农田肥力优化方法缓解SMIB波动
2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2020-09-15 DOI: 10.1109/SPIES48661.2020.9242924
A. Sabo, Noor Izzri Abdul Wahab, M. Lutfi Othman, Mai Zurwatul Ahlam Mohd Jaffar
{"title":"Mitigation of Oscillations in SMIB using a Novel Farmland Fertility Optimization based PIDPSS","authors":"A. Sabo, Noor Izzri Abdul Wahab, M. Lutfi Othman, Mai Zurwatul Ahlam Mohd Jaffar","doi":"10.1109/SPIES48661.2020.9242924","DOIUrl":"https://doi.org/10.1109/SPIES48661.2020.9242924","url":null,"abstract":"In this study, the design of proportional integral derivative (PID) PSS (PIDPSS) is proposed for damping oscillations in single machine infinite bus (SMIB) power system in MATLAB/SIMULINK. A new metaheuristics method called Farmland Fertility Algorithm (FFA) inspired by nature is proposed to optimize the PIDPSS parameters via minimizing robust time domain performance indices called Integral of Squared Time multiplied by Squared Error (ISTSE) objective function. The robustness of the ISTSE index was tested by comparing it with four common time integral indices, also, the FFA PIDPSS was compare with Conventional PIDPSS (CPIDPSS) and Invasive Weed Optimization (IWO) algorithm for plausible application in. The phasor simulation results shows that the proposed ISTSE, the speed deviation SMIB transient response in terms of rise time, settling time, peak time were all remarkably improved by an amount of 35.16%, 40.57%, 77.1% and 1% respectively by the proposed FFA method compare to the IWO method.","PeriodicalId":244426,"journal":{"name":"2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132523191","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
High Efficiency Tandem Perovskite/CIGS Solar Cell 高效串联钙钛矿/CIGS太阳能电池
2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2020-09-15 DOI: 10.1109/SPIES48661.2020.9242927
M. Mousa, M. Salah, F. Amer, Ahmed Saeed, Roaa I. Mubarak
{"title":"High Efficiency Tandem Perovskite/CIGS Solar Cell","authors":"M. Mousa, M. Salah, F. Amer, Ahmed Saeed, Roaa I. Mubarak","doi":"10.1109/SPIES48661.2020.9242927","DOIUrl":"https://doi.org/10.1109/SPIES48661.2020.9242927","url":null,"abstract":"This paper presents a study of a tandem Perovskite/CIGS cell, its performance parameters, and the effect of temperature variations on these parameters. The variation of each sub-cell short-circuit current density value with absorption thickness of perovskite (top) sub-cell has been done to find the matching point, as the two sub-cells equivalent to two series cells. The combining of two sub-cells shows the ability to absorb photons spectrum up to 1120 nm and perform a conversion efficiency about 30.5% (at room temperature) higher than each sub-cell. The variation of temperature from 260 K up to 360 K shows that the power conversion efficiency decreases almost linearly from 33.5% to 26.6%. The validity of the proposed tandem cell is proved by comparing its results with the recent published results. The proposed tandem cell shows one of the highest power conversion efficiency relative to the recent published results.","PeriodicalId":244426,"journal":{"name":"2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132568230","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: 9
The Effect of Inner Secondary Air on the Flow Field of a Swirl Burner 内二次风对旋流燃烧器流场的影响
2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2020-09-15 DOI: 10.1109/SPIES48661.2020.9243020
Weiliang Wang, Qian Wang, J. Lyu, Min Liu, G. Yue, Ji-zhen Liu
{"title":"The Effect of Inner Secondary Air on the Flow Field of a Swirl Burner","authors":"Weiliang Wang, Qian Wang, J. Lyu, Min Liu, G. Yue, Ji-zhen Liu","doi":"10.1109/SPIES48661.2020.9243020","DOIUrl":"https://doi.org/10.1109/SPIES48661.2020.9243020","url":null,"abstract":"Swirl burner is widely used for coal combustion in boilers. In many swirl burners, the secondary air is divided into two branches, namely inner secondary air (ISA) and outer secondary air (OSA). This paper presents a thorough study on the affecting mechanism of the ISA on the burner flow field via a cold state experiment and a hot state simulation. It is found that, the variation of ISA blade angle has a broad influence on the flow field. As the ISA blade angle increases, the ISA could be mixed earlier with the primary air, which benefits the air stage combustion; besides, its stronger annular jet flow stiffness is good for the entrainment of primary air. The increment of ISA blade angle also increases the annular jet flow stiffness, reduces the main flame recirculation (MFR), and might also move its away from the burner exit in some extent.","PeriodicalId":244426,"journal":{"name":"2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132608739","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
SPIES 2020 Cover Page 《间谍2020》封面
2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2020-09-15 DOI: 10.1109/spies48661.2020.9243117
{"title":"SPIES 2020 Cover Page","authors":"","doi":"10.1109/spies48661.2020.9243117","DOIUrl":"https://doi.org/10.1109/spies48661.2020.9243117","url":null,"abstract":"","PeriodicalId":244426,"journal":{"name":"2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122026469","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
Pilot Protection for Wind Power Transmission Line Based on Similarity of Time-Frequency Matrix 基于时频矩阵相似度的风电输电线路导频保护
2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2020-09-15 DOI: 10.1109/SPIES48661.2020.9243102
Liming Zheng, K. Jia, Bohan Liu, Jiankang Zhang
{"title":"Pilot Protection for Wind Power Transmission Line Based on Similarity of Time-Frequency Matrix","authors":"Liming Zheng, K. Jia, Bohan Liu, Jiankang Zhang","doi":"10.1109/SPIES48661.2020.9243102","DOIUrl":"https://doi.org/10.1109/SPIES48661.2020.9243102","url":null,"abstract":"The fault characteristics of wind power converter have an adverse effect on conventional protection. According to the analysis of the fault characteristics, a novel pilot protection based on the similarity of time-frequency matrix is proposed. The detailed model of grid-connected wind farm is built in real time digital simulator (RTDS) with external control devices. The simulation results verify the effectiveness of the proposed method. The proposed protection has the characteristics of high speed and high reliability. The proposed method also has good robustness in the case of fault resistance.","PeriodicalId":244426,"journal":{"name":"2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114427664","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
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