2017 2nd International Conference on Power and Renewable Energy (ICPRE)最新文献_第6页

Optimal operation of energy hub with different structures for minimal energy usage cost 以最小能源使用成本为目标的不同结构能源枢纽的优化运行

2017 2nd International Conference on Power and Renewable Energy (ICPRE) Pub Date : 2017-09-01 DOI: 10.1109/ICPRE.2017.8390495

Thanh-tung Ha, Yongjun Zhang, Jin-bao Hao, T. Pham

{"title":"Optimal operation of energy hub with different structures for minimal energy usage cost","authors":"Thanh-tung Ha, Yongjun Zhang, Jin-bao Hao, T. Pham","doi":"10.1109/ICPRE.2017.8390495","DOIUrl":"https://doi.org/10.1109/ICPRE.2017.8390495","url":null,"abstract":"Energy Hub (EH) is the transceiver of various forms of energy through a system of energy conversion, distribution and storage devices. The structure and components of the model are selected mainly based on the characteristics and needs of the load. The elements selection within the EH model has a great influence on the reliability and performance of the model. This paper performs optimization calculations for the EH model with different structures (12 operating scenarios). In particular, the operating scenarios correspond to the combination of devices in the model ranging from simple structure to complexity (taking into account the involvement of solar energy, the wind, and energy storage). The objective function for the total energy cost of the EH model within 24 hours is minimized with constraints: energy balance, capacity limits of the system and energy storage system loading capacity, power tariffs and natural gas. The calculation program is performed by General Algebraic Modeling System (GAMS) software. The calculation results allow the user to evaluate the role and efficiency of the devices in the EH model with different structures while selecting the appropriate EH model to maximize energy saving cost.","PeriodicalId":123761,"journal":{"name":"2017 2nd International Conference on Power and Renewable Energy (ICPRE)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127428760","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: 5

Optimal configuration of the segmented switch in complex multi-interconnected feeder considering branch layer and different reliability requirements 考虑分支层和不同可靠性要求的复杂多互连馈线分段开关优化配置

2017 2nd International Conference on Power and Renewable Energy (ICPRE) Pub Date : 2017-09-01 DOI: 10.1109/ICPRE.2017.8390526

L. Jingping, Xian Haoxin, C. Zhiping, Zeng Fanhua, Z. Shijian, Gao Chongjie

{"title":"Optimal configuration of the segmented switch in complex multi-interconnected feeder considering branch layer and different reliability requirements","authors":"L. Jingping, Xian Haoxin, C. Zhiping, Zeng Fanhua, Z. Shijian, Gao Chongjie","doi":"10.1109/ICPRE.2017.8390526","DOIUrl":"https://doi.org/10.1109/ICPRE.2017.8390526","url":null,"abstract":"The segmentation of line is one of the significant methods to improve the reliability of power supply. However, the distribution network planning still lack of scientific and systematic guidance for the segmentation of line. For the sake of the present situation that the actual planning is still empirical, a new method of optimal segmentation is proposed in this paper. Considering the characteristics of multiple interconnecting feeders with branch line, and a mathematical description of line branch faults is given. A mixed integer linear programming model based on The Flow of Failure Rate is constructed, which is applicable to the current mainstream overhead line and cable connection mode of the typical and complex line. The general solver is used directly to obtain the optimal number of segments and the location of the segments to meet the established reliability requirements under the actual planning. The correctness and effectiveness of the proposed method are verified by comparing with the segmented methods recommended by the current guidelines.","PeriodicalId":123761,"journal":{"name":"2017 2nd International Conference on Power and Renewable Energy (ICPRE)","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122883165","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

Research and design of voltage source with arbitrary waveform and multiple output 任意波形多输出电压源的研究与设计

2017 2nd International Conference on Power and Renewable Energy (ICPRE) Pub Date : 2017-09-01 DOI: 10.1109/ICPRE.2017.8390550

H. Cheng, Lihua Zhang

{"title":"Research and design of voltage source with arbitrary waveform and multiple output","authors":"H. Cheng, Lihua Zhang","doi":"10.1109/ICPRE.2017.8390550","DOIUrl":"https://doi.org/10.1109/ICPRE.2017.8390550","url":null,"abstract":"Simulate and output signal by Power system real time digital simulation system, through the power source to amplify the signals of voltage and current, generate two times voltage and current signal of simulated grid scenario, inject the relay protection equipment to be tested. Current common power source can only output a single sinusoidal signal. In order to meet the requirements of the performance verification of this kind of equipment, a voltage source with multiple outputs and arbitrary waveforms is designed. The system is divided into two parts, boost and full-bridge inverter. A current controlled chip UC3843 to stabilize the output voltage is used in the boost and the frequency multiplication SPWM modulation and effective PI regulation are adopted in full-bridge inverter to ensure low output distortion rate and fast dynamic response capability. Each output LC low-pass filter is designed, so that the effective information of reference signal falls in the frequency band. Simulation experiments are carried out by using Matlab/Simulink, the results show that the quality of the output waveform is good and the dynamic response speed is fast. The design and analysis is correct and the performance of the system reaches the design goals.","PeriodicalId":123761,"journal":{"name":"2017 2nd International Conference on Power and Renewable Energy (ICPRE)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129591456","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

Impact of strong dynamic couplings between VSC-based generation units and power systems on power system electro-mechanical oscillation modes 基于vsc的发电机组与电力系统强动态耦合对电力系统机电振荡模式的影响

2017 2nd International Conference on Power and Renewable Energy (ICPRE) Pub Date : 2017-09-01 DOI: 10.1109/ICPRE.2017.8390507

Xiao Chen, W. Du, Chen Chen, H. Wang

{"title":"Impact of strong dynamic couplings between VSC-based generation units and power systems on power system electro-mechanical oscillation modes","authors":"Xiao Chen, W. Du, Chen Chen, H. Wang","doi":"10.1109/ICPRE.2017.8390507","DOIUrl":"https://doi.org/10.1109/ICPRE.2017.8390507","url":null,"abstract":"The impact of a VSC-based generation unit on power system electro-mechanical oscillation modes (EOMs) is two-fold, changing power flow conditions and dynamically coupling with power systems. This paper focuses on the latter one. Usually the dynamic couplings between VSC-based generation units and power systems are thought to be weak due to the excellent performance of vector control. However, it is discovered in this paper that the dynamic couplings would be tremendous if the DC-link voltage control mode of the VSC coincided with any of the EOMs. Under the special condition of modal coincidence, damping of the affected EOM would be degraded substantially. Furthermore, it is found that the strength of dynamic couplings at the point of modal coincidence is positively correlated to the penetration level of the VSC-based generation unit. The effect of damping deterioration is worsened with the increasing of penetration level of the VSC-based generation unit when modal coincidence occurs. Both theoretical analysis and case study are presented in the paper to validate these findings.","PeriodicalId":123761,"journal":{"name":"2017 2nd International Conference on Power and Renewable Energy (ICPRE)","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124578390","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

Long-term wind power forecasting model by multi meteorological variables based on data compensation 基于数据补偿的多气象变量长期风电预测模型

2017 2nd International Conference on Power and Renewable Energy (ICPRE) Pub Date : 2017-09-01 DOI: 10.1109/ICPRE.2017.8390576

S. Xiao, Jiping Lu, D. Li, Hua Yu, Mengjiao Li, Jialin Liu

{"title":"Long-term wind power forecasting model by multi meteorological variables based on data compensation","authors":"S. Xiao, Jiping Lu, D. Li, Hua Yu, Mengjiao Li, Jialin Liu","doi":"10.1109/ICPRE.2017.8390576","DOIUrl":"https://doi.org/10.1109/ICPRE.2017.8390576","url":null,"abstract":"Long-term wind power forecasting plays an important role in the planning, prevention and control of harmful wind power events. However, short operation time of domestic wind farms result in the deficiencies of wind power data and it restricts the modeling of wind power forecasting. The staging operation of wind farms also bring bad effect to forecasting. To solve the problems, this paper proposed a long-term wind power forecasting model by multi meteorological variables based on data compensation. This model uses correlation coefficient method to select the optimal meteorological variables. Establishing the RBF neural network between optimal meteorological variables and historical power to get years of fitting power data. In this way, the power data can be compensated. Then, using the fitting power to replace the special year's wind power and forecasting the next year's wind power in steps of 3h. The verification with the actual data of Nanshan wind farm shows the proposed long-term forecasting method is effective and practicable. Those problems, deficiencies of power data and the special year, are solved.","PeriodicalId":123761,"journal":{"name":"2017 2nd International Conference on Power and Renewable Energy (ICPRE)","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115707633","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

Maximum photovoltaic access capacity considering voltage deviation 考虑电压偏差的最大光伏接入容量

2017 2nd International Conference on Power and Renewable Energy (ICPRE) Pub Date : 2017-09-01 DOI: 10.1109/ICPRE.2017.8390660

Chengli Zheng, Ping Yang, Ting He, Jie Zeng, Chi Zhang, Shaoxiong Zhou

引用次数: 2

Research on communication protocol supporting large scale load group control 支持大规模负载群控制的通信协议研究

2017 2nd International Conference on Power and Renewable Energy (ICPRE) Pub Date : 2017-09-01 DOI: 10.1109/ICPRE.2017.8390597

Dongsheng Jing, J. Xue, F. Wang, Lin Liu, Bing Qi, Bin Li

引用次数: 0

A novel direct distribution method based on dynamic characteristic coefficient for combined heat and power dispatch in single extraction units 基于动态特性系数的单抽机组热电联产直接分配方法

2017 2nd International Conference on Power and Renewable Energy (ICPRE) Pub Date : 2017-09-01 DOI: 10.1109/ICPRE.2017.8390624

Chunchun Cai, Pei-hong Wang, Farong Shen

引用次数: 0

Reliability assessment of relay protection system considering different protection configuration schemes 考虑不同保护配置方案的继电保护系统可靠性评估

2017 2nd International Conference on Power and Renewable Energy (ICPRE) Pub Date : 2017-09-01 DOI: 10.1109/ICPRE.2017.8390535

Xinyu Liu, Xibin Zhou, J. Gu, Jiang Chen, Biao Liu, Xing Chen

{"title":"Reliability assessment of relay protection system considering different protection configuration schemes","authors":"Xinyu Liu, Xibin Zhou, J. Gu, Jiang Chen, Biao Liu, Xing Chen","doi":"10.1109/ICPRE.2017.8390535","DOIUrl":"https://doi.org/10.1109/ICPRE.2017.8390535","url":null,"abstract":"The hardware reliability of the microcomputer protection device has been greatly improved, and the different protection principles and configuration schemes have become the main factors affecting the reliability. First, this paper summaries the configuration of primary equipment and its relay protection systems. Second, the Markov state space method is used to establish the integrated model of the primary device and its protection systems according to the common configurations of the power system and on the basis of the system state division. Finally, this paper evaluates the reliability of different protection configurations. The method proposed in this paper can calculate the reliability of the protection system composed of different principles or different manufacturers' protection devices. It has great significance for configuring the protection system with different type and different number of protective devices according to the importance of the power system, improve the reliability level of the relay protection system and ensuring the safe and stable operation of the power system.","PeriodicalId":123761,"journal":{"name":"2017 2nd International Conference on Power and Renewable Energy (ICPRE)","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126866920","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

Online monitoring of partial discharge initiated under metallic protrusion defect in high humidity by measuring air decomposition by-products 通过测量空气分解副产物在线监测高湿条件下金属突出缺陷引发的局部放电

2017 2nd International Conference on Power and Renewable Energy (ICPRE) Pub Date : 2017-09-01 DOI: 10.1109/ICPRE.2017.8390536

H. Javed, Kang Li, Guoqiang Zhang, A. Plesca

{"title":"Online monitoring of partial discharge initiated under metallic protrusion defect in high humidity by measuring air decomposition by-products","authors":"H. Javed, Kang Li, Guoqiang Zhang, A. Plesca","doi":"10.1109/ICPRE.2017.8390536","DOIUrl":"https://doi.org/10.1109/ICPRE.2017.8390536","url":null,"abstract":"Metallic protrusion defect is one of the important hazardous defects in high voltage equipments which causes partial discharges who ultimately leads to damage and breakdown of power systems. The present experimental research is based on online monitoring of these partial discharges in high humidity (60%RH) by measuring air decomposition by-products such as Ozone and NOx gases. Needle plate experimental configuration has been used to simulate protrusion defects and study is conducted at 15mm, 20mm, 25mm and 30 mm gap distance respectively. Temperature and pressure were kept constant during all testing. The inception and steady discharge voltages were observed along with measuring Ozone and NOx gases in ppb after PD. The constant low voltage of 4 kV is applied to generate PD and maximum as well as average incremental value of air decomposition by-products are noted. Finite element analysis of protrusion defect has been done and experimental results of air by-products concentrations are matched with numerically calculated field strength. Moreover a primary mathematical relationship is developed between concentration of air by-products and electric field strength. Our results shows that air by-products concentrations increases with partial discharge in protrusion defect which leads to an indirect way for its detection and monitoring.","PeriodicalId":123761,"journal":{"name":"2017 2nd International Conference on Power and Renewable Energy (ICPRE)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126541507","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: 5