2020 IEEE Sustainable Power and Energy Conference (iSPEC)最新文献_第7页

An evaluation method of power market operation efficiency based on Grey Relational Analysis of entropy weight method 基于熵权法灰色关联分析的电力市场运行效率评价方法

2020 IEEE Sustainable Power and Energy Conference (iSPEC) Pub Date : 2020-11-23 DOI: 10.1109/iSPEC50848.2020.9351185

Linlin Guan, Zonghe Gao, Mengfu Tu, Xuan Li, Jingxiao Jiang

引用次数: 0

Research on Simulation Modeling and experimental technology of large capacity distributed energy storage 大容量分布式储能系统仿真建模与实验技术研究

2020 IEEE Sustainable Power and Energy Conference (iSPEC) Pub Date : 2020-11-23 DOI: 10.1109/iSPEC50848.2020.9350923

Ling Yang, Zhidong Wang, Fengqiang Deng, Mei Liang, P. Zhou

引用次数: 0

Study of Modeling of Dynamic Components in STEPS STEPS中动态部件建模的研究

2020 IEEE Sustainable Power and Energy Conference (iSPEC) Pub Date : 2020-11-23 DOI: 10.1109/iSPEC50848.2020.9351181

Changgang Li, Yue Wu, Hengxu Zhang, Yutian Liu

引用次数: 0

A method of electromagnetic vibration power generation based on washing machine 一种基于洗衣机的电磁振动发电方法

2020 IEEE Sustainable Power and Energy Conference (iSPEC) Pub Date : 2020-11-23 DOI: 10.1109/iSPEC50848.2020.9351104

Jianghan Li, Fengqiang Deng, An Chen, Longxiao Li, Jialong Li, Minhang Liang, Ruibing Wu

{"title":"A method of electromagnetic vibration power generation based on washing machine","authors":"Jianghan Li, Fengqiang Deng, An Chen, Longxiao Li, Jialong Li, Minhang Liang, Ruibing Wu","doi":"10.1109/iSPEC50848.2020.9351104","DOIUrl":"https://doi.org/10.1109/iSPEC50848.2020.9351104","url":null,"abstract":"In view of the collection of vibration energy generated by omnidirectional vibration devices such as washing machine, a new method of electromagnetic vibration power generation based on washing machine is proposed. The physical model of closed magnetic circuit is established by using spring, permanent magnet, winding coil and square frame. The mathematical model and theoretical derivation are carried out according to the relevant laws of electromagnetic induction, and the physical model is obtained. Combined with the software of COMSOL multiphysics, the finite element method is used to simulate the model. In the simulation process, the magnetic field and voltage state of one side of the square frame are transformed into two-dimensional images due to the characteristics of axisymmetry; the parameters are set, the magnetic field and mathematical field are established to obtain the steady-state solution; the transient solution is obtained by grid thinning. The simulation results are consistent with the calculation results, which proves that the electromagnetic vibration power generation method realized in this paper is feasible.","PeriodicalId":403879,"journal":{"name":"2020 IEEE Sustainable Power and Energy Conference (iSPEC)","volume":"295 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123294022","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

Noise analysis and SNR optimization design of fiber optical current transformers 光纤电流互感器噪声分析及信噪比优化设计

2020 IEEE Sustainable Power and Energy Conference (iSPEC) Pub Date : 2020-11-23 DOI: 10.1109/iSPEC50848.2020.9351215

Hu Bei, Xiao Hao, Xiao Jingen, Lai JiaCang, Liu Jianguang, L. Boyang

{"title":"Noise analysis and SNR optimization design of fiber optical current transformers","authors":"Hu Bei, Xiao Hao, Xiao Jingen, Lai JiaCang, Liu Jianguang, L. Boyang","doi":"10.1109/iSPEC50848.2020.9351215","DOIUrl":"https://doi.org/10.1109/iSPEC50848.2020.9351215","url":null,"abstract":"Optical Fiber Current Transformer (FOCT) is susceptible to various types of noise, which leads to a decrease in its measurement accuracy, especially when the primary current is small. Improving its signal-to-noise ratio is one of the key technologies of FOCT. This article comprehensively analyzes FOCT's optical signal noise, signal detection noise and noise sources introduced by the external environment, and gives the calculation method of FOCT SNR. The influence of different noise sources on the signal-to-noise ratio is simulated through theory, and the FOCT signal-to-noise ratio optimization design plan is proposed. It is pointed out that the receiver optical power can be increased, increasing the number of sensitive optical fibers of the sensor head and selecting the appropriate closed-loop feedback phase modulation bias operating point method can effectively improve the signal-to-noise ratio and has been verified by experiments. Based on this design FOCT prototype, rated current of 600 A when meet GB / T 20840.8-2007 predetermined 0.2S level requirements, and the SNR is 30.2dB at 1% rated current, the ratio error is less than 0.61%, the phase error is less than 12.39′.","PeriodicalId":403879,"journal":{"name":"2020 IEEE Sustainable Power and Energy Conference (iSPEC)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123360229","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: 6

Research on Influence of Tidal Geoelectric Field on Geomagnetically Induced Current Calculation of Power Grid 潮汐地电场对电网地磁感应电流计算的影响研究

2020 IEEE Sustainable Power and Energy Conference (iSPEC) Pub Date : 2020-11-23 DOI: 10.1109/iSPEC50848.2020.9350966

Jingli Chen, Dongbo Zhan, Xinyi Zheng, Shouwei Yang, Jiawei Yang, Yulai Kuang

{"title":"Research on Influence of Tidal Geoelectric Field on Geomagnetically Induced Current Calculation of Power Grid","authors":"Jingli Chen, Dongbo Zhan, Xinyi Zheng, Shouwei Yang, Jiawei Yang, Yulai Kuang","doi":"10.1109/iSPEC50848.2020.9350966","DOIUrl":"https://doi.org/10.1109/iSPEC50848.2020.9350966","url":null,"abstract":"At present, there is a huge error between the calculated value of the Geomagnetically Induced Current (GIC) and the measured value, which affects the implementation of GIC's protection work. In order to obtain the root cause of the error, combined with the formation mechanism of GIC and induced geoe-lectric field, it is found and proposed that the Tidal Geoelectrical Field (TGF) is an important influence factor that causes the continuous change of GIC. The feasibility solution method of TGF acting on the power grid is given, and the mathematical expression of GIC in the calculation of the geocentric coordinate system is derived. Finally, taking the Lanzhou area of Gansu as the research ob-ject, the GIC level of the power grid caused by TGF was calculated by estab-lishing a local grid DC equivalent model and using numerical simulation meth-ods. Compared with the calculation results of other literatures in the same area, the maximum GIC value generated under the action of TGF accounts for 44.9% of the calculated value of GIC during the geomagnetic storm. Therefore, the subsequent analysis and analysis of GIC must consider the influence of TGF.","PeriodicalId":403879,"journal":{"name":"2020 IEEE Sustainable Power and Energy Conference (iSPEC)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123095473","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

Selection Method of Smart Grid Operation Index Based on Maximum Relevance and Minimum Redundancy 基于最大关联和最小冗余的智能电网运行指标选择方法

2020 IEEE Sustainable Power and Energy Conference (iSPEC) Pub Date : 2020-11-23 DOI: 10.1109/iSPEC50848.2020.9351272

Lin Huang, Diangang Wang, Yuan Yin, Junhuan Yang, Lixiong Xu, Xinda He

引用次数: 0

Agent-based simulation analysis of the interaction effects between electricity market and carbon market 基于agent的电力市场与碳市场交互效应仿真分析

2020 IEEE Sustainable Power and Energy Conference (iSPEC) Pub Date : 2020-11-23 DOI: 10.1109/iSPEC50848.2020.9351129

Yifei Zhang, Zheng Zhang, Pengfei Zhang, Zhiyuan Li, Tianran Li, Cai Wang

引用次数: 1

Convexity Analysis and Linear Approximation of Voltage Magnitude - Power Injection Mapping for Distribution Systems with Unknown Parameters 未知参数配电系统电压幅值-功率注入映射的凸性分析与线性逼近

2020 IEEE Sustainable Power and Energy Conference (iSPEC) Pub Date : 2020-11-23 DOI: 10.1109/iSPEC50848.2020.9350986

Yanran Du, Ying Wang, Yin Xu

{"title":"Convexity Analysis and Linear Approximation of Voltage Magnitude - Power Injection Mapping for Distribution Systems with Unknown Parameters","authors":"Yanran Du, Ying Wang, Yin Xu","doi":"10.1109/iSPEC50848.2020.9350986","DOIUrl":"https://doi.org/10.1109/iSPEC50848.2020.9350986","url":null,"abstract":"In many optimization problems for distribution systems, the operational constraints such as power flow equations and bus voltage constraints should be considered. A popular approach is to formulate the problem as a convex optimization problem assuming that the exact network parameters and topology are known. However, in most cases, the exact network parameters and topology are not known and difficult to infer. With the developments of automation and digitalization of the distribution power grid, smart meters provide abundant useful information and data, such as the injection power and bus voltage, etc., which can help us gain knowledge of the network. In this paper, an idea to linearly approximate the voltage magnitude - power injection mapping with known measurement data is proposed as an attempt to solve distribution system optimization problems with unknown parameters and topology. First, the convexity of the voltage magnitude - power injection mapping is analyzed, based on which the linear approximation of the mapping is proposed. Abundant tests validate the feasibility of the mapping linear approximation. Factors that may influence linearization effects are also investigated and the associated recommendation is provided.","PeriodicalId":403879,"journal":{"name":"2020 IEEE Sustainable Power and Energy Conference (iSPEC)","volume":"751 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123872452","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

Efficient Integration and Comprehensive Utilization of Renewable Energy / Hydrogen Energy Based on DC Energy Routing 基于直流能量路由的可再生能源/氢能高效集成与综合利用

2020 IEEE Sustainable Power and Energy Conference (iSPEC) Pub Date : 2020-11-23 DOI: 10.1109/iSPEC50848.2020.9351073

Wei Deng, W. Pei, Li Ding, Yin Yi, Xue Zhang, Ying Zhuang

引用次数: 0