2019 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)最新文献_第4页

A Three-Phase Smart Inverter for Frequency and Voltage Regulation in an Unbalanced Distribution System 一种用于不平衡配电系统频率和电压调节的三相智能逆变器

2019 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2019-12-01 DOI: 10.1109/APPEEC45492.2019.8994451

firstname lastname

{"title":"A Three-Phase Smart Inverter for Frequency and Voltage Regulation in an Unbalanced Distribution System","authors":"firstname lastname","doi":"10.1109/APPEEC45492.2019.8994451","DOIUrl":"https://doi.org/10.1109/APPEEC45492.2019.8994451","url":null,"abstract":"In recent years, the use of renewable energy (RE) in distributed power generation has been increasing. However, a key drawback of RE is unstable power output that causes systemic effects. Moreover, with the increasing penetration of RE in three-phase distribution systems, the problem of unbalanced three-phase systems becomes increasingly challenging. This paper proposes a novel control strategy for a grid-connected three-phase four-wire smart inverter. By using the proposed power control strategy and the positive- and negative-sequence decoupling controls, the smart inverter can provide not only frequency but also voltage regulation to maintain a balanced and stable system. To verify the feasibility of the proposed method, a 2 kW grid-connected three-phase four-wire prototype inverter was implemented, which was connected to a three-phase AC source for analysis. The experimental results indicate that the proposed control strategy is a feasible scheme. System frequency regulation and phase voltage compensation can be achieved to support the system under an unbalanced or unstable condition.","PeriodicalId":241317,"journal":{"name":"2019 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115835825","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

Optimal Day-Ahead Scheduling in AC/DC Hybrid Distribution Networks based on SOCP 基于SOCP的交直流混合配电网最优日前调度

2019 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2019-12-01 DOI: 10.1109/APPEEC45492.2019.8994465

Wei Sun, Wen Zhang, Tingting Zhang, Yaxin Du

{"title":"Optimal Day-Ahead Scheduling in AC/DC Hybrid Distribution Networks based on SOCP","authors":"Wei Sun, Wen Zhang, Tingting Zhang, Yaxin Du","doi":"10.1109/APPEEC45492.2019.8994465","DOIUrl":"https://doi.org/10.1109/APPEEC45492.2019.8994465","url":null,"abstract":"DC distribution systems, which can improve the accommodation of renewable energy sources and DC loads, have developed rapidly, leading to the appearance of hybrid AC/DC distribution systems. This paper proposes an optimal day-ahead scheduling model to increase the economy of the system operation considering the high penetration and uncertainty of the distributed generations. The proposed model aims to minimize the active power loss and electricity purchasing cost by coordinating active or reactive power outputs of voltage source converter (VSC), energy storage system (ESS) and static var compensation (SVC), as well as the voltage regulation capability of OLTC. Besides, the load model has been carefully analysed to implement conservation voltage reduction (CVR). In addition, VSC is detailed modelled to capture the coupling between active power and reactive power. Moreover, the second-order cone programming (SOCP) is used in this paper to transform the mixed integer nonlinear programming problem to a convex optimization one, which shortens the solving time. The IEEE 33-bus test system is employed to demonstrate the effectiveness and efficiency of the proposed method.","PeriodicalId":241317,"journal":{"name":"2019 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134451222","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

Research on Calibration Technology of Arresters Monitoring Device 避雷器监测装置标定技术研究

2019 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2019-12-01 DOI: 10.1109/APPEEC45492.2019.8994531

Jiliang Fu, W. Zhou, Hua Wu, Cong Qi, Xin Ning, Sibei Mi, Can Ding

引用次数: 0

Comparative Analysis of Commonly used Batteries for Residential Solar PV Applications 住宅太阳能光伏应用常用电池的比较分析

2019 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2019-12-01 DOI: 10.1109/APPEEC45492.2019.8994441

S. Islam, S. Saha, M. Haque, Md. Apel Mahmud

引用次数: 6

The assessment of a micro-grid operation under optimal planning of Electric Energy Storage units: RSE’s case study 储能单元优化规划下的微电网运行评估:RSE案例研究

2019 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2019-12-01 DOI: 10.1109/APPEEC45492.2019.8994459

Yelena Vardanyan, M. Verga, R. Lazzari, M. K. Pendieu, H. Madsen

引用次数: 0

A Simplified Wide-Bandwidth Generalized Impedance Model for Single-Phase Grid-Connected Inverter in Polar Coordinate System 极坐标下单相并网逆变器宽带广义阻抗简化模型

2019 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2019-12-01 DOI: 10.1109/APPEEC45492.2019.8994647

Yuancan Xu, Yandong Chen, Wenhua Wu, Zhiwei Xie, Lu Xie, Jingming Liu, Shang Peng

{"title":"A Simplified Wide-Bandwidth Generalized Impedance Model for Single-Phase Grid-Connected Inverter in Polar Coordinate System","authors":"Yuancan Xu, Yandong Chen, Wenhua Wu, Zhiwei Xie, Lu Xie, Jingming Liu, Shang Peng","doi":"10.1109/APPEEC45492.2019.8994647","DOIUrl":"https://doi.org/10.1109/APPEEC45492.2019.8994647","url":null,"abstract":"With the continuous expansion of new energy grid-connected power generation, the utilization of a large number of power electronic inverters results in the aggravating interaction between new energy power generation and the grid, which led to critical wide-bandwidth oscillation. Therefore, this paper proposes a simplified wide-bandwidth generalized impedance model by modeling the single-phase grid-connected inverter in the polar coordinate system. Firstly, the small-signal dynamic model of the inverter in the polar coordinate system based with second-order generalized integrator (SOGI) is obtained. Then a frequency division basis of 10 Hz to 1 kHz is proposed because the dynamic response of each link varies with frequency. Finally, generalized impedance models of the inverter in the different frequency band are established respectively. The good agreement of the simulation result and the theoretical model verifies the feasibility and correctness of the model. The proposed model lays a good foundation for wide-bandwidth modeling of the three-phase system.","PeriodicalId":241317,"journal":{"name":"2019 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130820930","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

Infrared Image Recognition Method of High Voltage Porcelain Insulator Based on Self-Constructed CNN 基于自构建CNN的高压瓷绝缘子红外图像识别方法

2019 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2019-12-01 DOI: 10.1109/APPEEC45492.2019.8994446

Yipeng Lu, Jungang Yin, Jiangang Yao, Xueming Zhou, Danhui Hu

{"title":"Infrared Image Recognition Method of High Voltage Porcelain Insulator Based on Self-Constructed CNN","authors":"Yipeng Lu, Jungang Yin, Jiangang Yao, Xueming Zhou, Danhui Hu","doi":"10.1109/APPEEC45492.2019.8994446","DOIUrl":"https://doi.org/10.1109/APPEEC45492.2019.8994446","url":null,"abstract":"To achieve online automatic monitoring of high voltage porcelain insulator strings by infrared thermography, it is essential to obtain the temperature information of the iron cap and disc. In order to accurately extract the temperature, this paper proposes a self-constructed convolutional neural network (CNN) for automatic identification of the iron cap and disk area in an infrared image. The sample set of the algorithm consists of insulator images from multiple substations in various regions, without loss of generality. After training, the network finally outputs four classifiers of iron caps, discs, aluminum fittings and cables. Then we use these classifiers to identify the corrected insulator string region image. Finally, we use different colors to identify the target area and extract the temperature of the area with in-house code. By evaluating the relative temperature difference between an individual insulator and its adjacent insulators, we can discriminate whether there is deterioration in the insulator string. The experimental results show that the self-constructed CNN can achieve excellent recognition results for insulator string iron caps and disc surfaces of different voltage levels.","PeriodicalId":241317,"journal":{"name":"2019 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133304852","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

Deep Neural Network-based Wide Area Back-up Protection Scheme for Transmission System 基于深度神经网络的输电系统广域备份保护方案

2019 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2019-12-01 DOI: 10.1109/APPEEC45492.2019.8994344

Biswajit Sahoo, S. Samantaray

{"title":"Deep Neural Network-based Wide Area Back-up Protection Scheme for Transmission System","authors":"Biswajit Sahoo, S. Samantaray","doi":"10.1109/APPEEC45492.2019.8994344","DOIUrl":"https://doi.org/10.1109/APPEEC45492.2019.8994344","url":null,"abstract":"During dynamic stressed conditions, distance relays are utterly vulnerable to mal-operations. The apparent impedance seen by the relay can enter into the third zone causing distance relay mal-tripping which may lead to cascading outages. This work proposes a new methodology for wide-area backup protection that incorporates two different decision logics for final relaying decision. Phasor measurement unit (PMU) data is utilized to determine whether the system is in normal or stressed state. A Deep learning based method known as Deep Neural Network (DNN) is implemented to develop first decision logic i.e. state assessment. During normal condition, conventional distance relay takes the relaying decision, but during stressed condition the decision switches to the second protective relaying logic which is based on wide area information. Proposed scheme was tested for WSCC 9 bus system using MATLAB/SIMULINK platform and mal-operations of zone-3 distance relay are prevented. Performance comparison of the proposed logic with the blinder-based techniques exhibited substantially higher blocking efficiency.","PeriodicalId":241317,"journal":{"name":"2019 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133355445","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

Extinguishment distance estimation method of DC breaking arc occuring under Low Voltage DC conditions 低压直流条件下直流断弧熄灭距离估算方法

2019 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2019-12-01 DOI: 10.1109/APPEEC45492.2019.8994511

Yong-Jung Kim, Woo-Yong Jeong, Hyosung Kim

引用次数: 1

Regional Grid Load Frequency Control Strategy Considering Renewable Energy 考虑可再生能源的区域电网负荷频率控制策略

2019 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2019-12-01 DOI: 10.1109/APPEEC45492.2019.8994335

Wutao Chen, D. Hua, Jiayu Zhong

引用次数: 0