Pub Date : 2021-10-09DOI: 10.1109/REPE52765.2021.9616982
Jiankun Zhao, Jianli Zhao, Baofeng Yan, Jialin Qin, Juan Xu, Lei Zhao, Chujun Fu
The spacer keeps a certain distance between the split sub-conductor to prevent the split sub-conductors from whipping each other. In addition, the spacer has a certain effect on suppressing the aeolian vibration of the transmission line. In recent years, due to improper design and selection of spacer, damage to the spacer and faults of worn wires have occurred from time to time. It is necessary to study the vibration characteristics and damping performance of the spacer in the anti-vibration design of the transmission lines. The mechanism of typical structural damper spacers to suppress the aeolian vibration is analyzed, and the mathematical model of aeolian vibration of the damper spacers for multi-split conductors is established. The stiffness-damping method and damping method are used to carry out experimental research on the damping characteristics of the spacer. The key parameters that characterize the vibration characteristics of damper spacer are presented, which provides a reference for the design of spacer.
{"title":"Aeolian Vibration Model and Experimental Study on Damping Characteristics of Damper Spacers","authors":"Jiankun Zhao, Jianli Zhao, Baofeng Yan, Jialin Qin, Juan Xu, Lei Zhao, Chujun Fu","doi":"10.1109/REPE52765.2021.9616982","DOIUrl":"https://doi.org/10.1109/REPE52765.2021.9616982","url":null,"abstract":"The spacer keeps a certain distance between the split sub-conductor to prevent the split sub-conductors from whipping each other. In addition, the spacer has a certain effect on suppressing the aeolian vibration of the transmission line. In recent years, due to improper design and selection of spacer, damage to the spacer and faults of worn wires have occurred from time to time. It is necessary to study the vibration characteristics and damping performance of the spacer in the anti-vibration design of the transmission lines. The mechanism of typical structural damper spacers to suppress the aeolian vibration is analyzed, and the mathematical model of aeolian vibration of the damper spacers for multi-split conductors is established. The stiffness-damping method and damping method are used to carry out experimental research on the damping characteristics of the spacer. The key parameters that characterize the vibration characteristics of damper spacer are presented, which provides a reference for the design of spacer.","PeriodicalId":136285,"journal":{"name":"2021 IEEE 4th International Conference on Renewable Energy and Power Engineering (REPE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130768492","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}
Since the goal of carbon peak and carbon neutrality was proposed, the process of low-carbon energy development in China has accelerated, in addition, with the deepening of the new round of power reform, the construction of the electricity spot market has become one of China's current important tasks. Under these trends, studying how to enable electricity retailer to solve the problem of renewable energy consumption in the context of the spot market is a key element in building a diversified, open and competitive electricity retail market. This paper presents an optimization method of retail packages for electricity retailers considering the spot market environment and the consumption of renewable energy. After analyzing the characteristics of the electric spot market and the value of electric energy under the goal of carbon peak and carbon neutrality, firstly, the clustering algorithm is used to quantify and classify the load characteristics of users, then, the behavior of users choosing packages is studied through user utility to ensure that the user's choice is consistent with the expectations of the electricity retailers, and an optimization model of packages with the goal of maximizing the profit of the electricity retailers is established after introducing the spot market and renewable energy. The calculation example obtains configuration plan of the green retail package suitable for different users with the data set in a certain city, which provides a scientific basis for the design and optimization of the retail packages for electricity retailers under the current national policy guidance.
{"title":"Optimization of Retail Packages Adapted to the Electricity Spot Market with the Goal of Carbon Peak and Carbon Neutrality","authors":"Bangcan Wang, Xinyi Xie, Wenjiao Ding, Dongyuan Yang, Liming Ying, Gui-qi Zhu","doi":"10.1109/REPE52765.2021.9617090","DOIUrl":"https://doi.org/10.1109/REPE52765.2021.9617090","url":null,"abstract":"Since the goal of carbon peak and carbon neutrality was proposed, the process of low-carbon energy development in China has accelerated, in addition, with the deepening of the new round of power reform, the construction of the electricity spot market has become one of China's current important tasks. Under these trends, studying how to enable electricity retailer to solve the problem of renewable energy consumption in the context of the spot market is a key element in building a diversified, open and competitive electricity retail market. This paper presents an optimization method of retail packages for electricity retailers considering the spot market environment and the consumption of renewable energy. After analyzing the characteristics of the electric spot market and the value of electric energy under the goal of carbon peak and carbon neutrality, firstly, the clustering algorithm is used to quantify and classify the load characteristics of users, then, the behavior of users choosing packages is studied through user utility to ensure that the user's choice is consistent with the expectations of the electricity retailers, and an optimization model of packages with the goal of maximizing the profit of the electricity retailers is established after introducing the spot market and renewable energy. The calculation example obtains configuration plan of the green retail package suitable for different users with the data set in a certain city, which provides a scientific basis for the design and optimization of the retail packages for electricity retailers under the current national policy guidance.","PeriodicalId":136285,"journal":{"name":"2021 IEEE 4th International Conference on Renewable Energy and Power Engineering (REPE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129732366","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}
Pub Date : 2021-10-09DOI: 10.1109/REPE52765.2021.9617043
Tang Yang, Xingshuo Li, S. Ding
As the penetration rate of photovoltaic generation continues to increase, the problems such as grid overload and overvoltage are gradually emerging. Therefore, a method of limiting active power output to a specific value has emerged, called constant power generation (CPG). Conventional CPG control algorithm usually exists a large oscillation at the reference power. In this paper, an improved CPG control algorithm is proposed. The proposed method can reduce power oscillation at the reference power which leads to less power loss. The superiority of the algorithm is verified in simulation and experiment.
{"title":"An Improved Control Scheme for Constant Power Generation Control in Photovoltaic Systems","authors":"Tang Yang, Xingshuo Li, S. Ding","doi":"10.1109/REPE52765.2021.9617043","DOIUrl":"https://doi.org/10.1109/REPE52765.2021.9617043","url":null,"abstract":"As the penetration rate of photovoltaic generation continues to increase, the problems such as grid overload and overvoltage are gradually emerging. Therefore, a method of limiting active power output to a specific value has emerged, called constant power generation (CPG). Conventional CPG control algorithm usually exists a large oscillation at the reference power. In this paper, an improved CPG control algorithm is proposed. The proposed method can reduce power oscillation at the reference power which leads to less power loss. The superiority of the algorithm is verified in simulation and experiment.","PeriodicalId":136285,"journal":{"name":"2021 IEEE 4th International Conference on Renewable Energy and Power Engineering (REPE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121485067","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}
Pub Date : 2021-10-09DOI: 10.1109/REPE52765.2021.9617089
Z. An, Dong Xing, Zun Guo, Siwei Liu, Qingru Qi, Dongmiao Wang, Nan Wei, Changyu Deng
The UHVDC plays an important role to transmit renewable energy from the western energy base to the eastern load center in China. However, sending-end grids of UHVDCs are usually not strong enough and difficult to ride through the power flow transfer after DC failures, which significantly restrains the capability and efficiency of the UHVDCs. In conventional UHVDC planning and design, it is difficult to evaluate the strength of the topology of different planning schemes and figure out the preferable scheme. This paper proposes a grid vulnerability index based on the entropy theory. First, the transient potential energy and electrical betweenness method are introduced and a comprehensive vulnerability index is proposed. Then, considering that entropy reflects the uniformity of the system distribution, the grid vulnerability index is raised by calculating the entropy of all branch vulnerability indexes. An actual sending-end grid in China is evaluated to validate the effectiveness of the proposed method.
{"title":"Entropy-Based Grid Vulnerability Assessment on Sending-End Grid of UHVDCs with High Renewable Energy Penetration","authors":"Z. An, Dong Xing, Zun Guo, Siwei Liu, Qingru Qi, Dongmiao Wang, Nan Wei, Changyu Deng","doi":"10.1109/REPE52765.2021.9617089","DOIUrl":"https://doi.org/10.1109/REPE52765.2021.9617089","url":null,"abstract":"The UHVDC plays an important role to transmit renewable energy from the western energy base to the eastern load center in China. However, sending-end grids of UHVDCs are usually not strong enough and difficult to ride through the power flow transfer after DC failures, which significantly restrains the capability and efficiency of the UHVDCs. In conventional UHVDC planning and design, it is difficult to evaluate the strength of the topology of different planning schemes and figure out the preferable scheme. This paper proposes a grid vulnerability index based on the entropy theory. First, the transient potential energy and electrical betweenness method are introduced and a comprehensive vulnerability index is proposed. Then, considering that entropy reflects the uniformity of the system distribution, the grid vulnerability index is raised by calculating the entropy of all branch vulnerability indexes. An actual sending-end grid in China is evaluated to validate the effectiveness of the proposed method.","PeriodicalId":136285,"journal":{"name":"2021 IEEE 4th International Conference on Renewable Energy and Power Engineering (REPE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120990345","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}
Pub Date : 2021-10-09DOI: 10.1109/REPE52765.2021.9617054
B. Nath, Mohammad Kawser Alam, Hassan Mohamed, Y. Yusoff, M. A. Matin, N. Amin
Recently, quantum dot intermediate band solar cell (QDIBSC) becomes increasingly popular among researchers due to the low efficiency of different types of first and second-generation solar cells. QDIBSC can produce high efficiency by utilizing photons having energy lower than the bandgap energy of absorber material. Power conversion efficiency (PCE) of QDIBSC depends on intermediate bands (IBs) position and width. IBs number, position and width again depend on quantum dot (QD) size, barrier material content, interdot distance. In this numerical analysis to illustrate the position, number and width of the IBs were determined by resolving the time-independent Schrödinger wave equation with the help of the Kronig-Penney model. In this part of work, the effect of multi IBs on PCE of InAs0.9sN0.02/AlPxSb(1-x) QDIBSC was theoretically investigated and maximum efficiency was found to be 63.12% for three IBs, 51.91% for two IBs and 3S.SS% for the single intermediate band for a certain QD size, phosphorus content and interdot distance.
{"title":"Performance Analysis of InAs0.98N0.02/AlPxSb(1-x) Quantum Dot Intermediate Band Solar Cell","authors":"B. Nath, Mohammad Kawser Alam, Hassan Mohamed, Y. Yusoff, M. A. Matin, N. Amin","doi":"10.1109/REPE52765.2021.9617054","DOIUrl":"https://doi.org/10.1109/REPE52765.2021.9617054","url":null,"abstract":"Recently, quantum dot intermediate band solar cell (QDIBSC) becomes increasingly popular among researchers due to the low efficiency of different types of first and second-generation solar cells. QDIBSC can produce high efficiency by utilizing photons having energy lower than the bandgap energy of absorber material. Power conversion efficiency (PCE) of QDIBSC depends on intermediate bands (IBs) position and width. IBs number, position and width again depend on quantum dot (QD) size, barrier material content, interdot distance. In this numerical analysis to illustrate the position, number and width of the IBs were determined by resolving the time-independent Schrödinger wave equation with the help of the Kronig-Penney model. In this part of work, the effect of multi IBs on PCE of InAs0.9sN0.02/AlPxSb(1-x) QDIBSC was theoretically investigated and maximum efficiency was found to be 63.12% for three IBs, 51.91% for two IBs and 3S.SS% for the single intermediate band for a certain QD size, phosphorus content and interdot distance.","PeriodicalId":136285,"journal":{"name":"2021 IEEE 4th International Conference on Renewable Energy and Power Engineering (REPE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134343221","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}
Pub Date : 2021-10-09DOI: 10.1109/REPE52765.2021.9617045
Fei Jiaxuan, Wang Xiangqun, Yao Qigui, Li Nuannuan, Chen Cen
With the development of electric smart Internet of Things, electric smart Internet of Things terminals are widely used, and higher requirements are put forward for the safety of electric smart Internet of Things terminals. This paper studies the current research status of using container technology for kernel resource isolation control, and proposes a comprehensive container resource isolation protection scheme. The resource isolation and protection module of the electric supply IoT terminal container is realized through two ways of kernel security label and path matching. We reported the experimental results to verify the proposed methods and demonstrated the effectiveness.
{"title":"Control Technology of Kernel Resource Isolation for Power Intelligent IoT Terminal Operating System","authors":"Fei Jiaxuan, Wang Xiangqun, Yao Qigui, Li Nuannuan, Chen Cen","doi":"10.1109/REPE52765.2021.9617045","DOIUrl":"https://doi.org/10.1109/REPE52765.2021.9617045","url":null,"abstract":"With the development of electric smart Internet of Things, electric smart Internet of Things terminals are widely used, and higher requirements are put forward for the safety of electric smart Internet of Things terminals. This paper studies the current research status of using container technology for kernel resource isolation control, and proposes a comprehensive container resource isolation protection scheme. The resource isolation and protection module of the electric supply IoT terminal container is realized through two ways of kernel security label and path matching. We reported the experimental results to verify the proposed methods and demonstrated the effectiveness.","PeriodicalId":136285,"journal":{"name":"2021 IEEE 4th International Conference on Renewable Energy and Power Engineering (REPE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116354912","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}
Pub Date : 2021-10-09DOI: 10.1109/REPE52765.2021.9617063
Marco Antonio Haikal-Leite, André de Oliveira Dias, Anna Carolina de P. Sermarini, Luis Fernando Mendonça Frutuoso, Eloi Fernández y Fernández
In Brazilian Energy Sector, solar photovoltaic energy is increasing its importance. It presents itself as a promising alternative for supplying national electric demand. In order to develop a photovoltaic system, it is very important to know how solar resource behaves in a given place and its variability during the year. The objective of this study was to obtain data from a given number of solarimetric stations and to compare it with satellite data from the same places, analyzing the differences observed in order to assess its influence in the risks of the decision to construct a photovoltaic generation system. It was concluded that irradiation models presented high correlation coefficients with the typical meteorological year, higher than 0.90 for the less accurate and higher than 0.98 for the more accurate. Student's t test presented probability higher than 97% of the results to correspond to reality. Another conclusion indicates that models with higher correlation coefficient can be used in feasibility studies for decision making, with uncertainties smaller than measurement errors.
{"title":"Statistical Study of Brazilian Solarimetric Measurements and Comparison with Satellite Models for Eventual Use in Feasibility Studies of Photovoltaic Solar Generation","authors":"Marco Antonio Haikal-Leite, André de Oliveira Dias, Anna Carolina de P. Sermarini, Luis Fernando Mendonça Frutuoso, Eloi Fernández y Fernández","doi":"10.1109/REPE52765.2021.9617063","DOIUrl":"https://doi.org/10.1109/REPE52765.2021.9617063","url":null,"abstract":"In Brazilian Energy Sector, solar photovoltaic energy is increasing its importance. It presents itself as a promising alternative for supplying national electric demand. In order to develop a photovoltaic system, it is very important to know how solar resource behaves in a given place and its variability during the year. The objective of this study was to obtain data from a given number of solarimetric stations and to compare it with satellite data from the same places, analyzing the differences observed in order to assess its influence in the risks of the decision to construct a photovoltaic generation system. It was concluded that irradiation models presented high correlation coefficients with the typical meteorological year, higher than 0.90 for the less accurate and higher than 0.98 for the more accurate. Student's t test presented probability higher than 97% of the results to correspond to reality. Another conclusion indicates that models with higher correlation coefficient can be used in feasibility studies for decision making, with uncertainties smaller than measurement errors.","PeriodicalId":136285,"journal":{"name":"2021 IEEE 4th International Conference on Renewable Energy and Power Engineering (REPE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124889449","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}
Pub Date : 2021-10-09DOI: 10.1109/REPE52765.2021.9617004
Qiunan Xu, Xingshuo Li, Chunmei Feng, S. Ding
Partial shading condition (PSC) is an unavoidable complication in the field of photovoltaic (PV) systems. Bypass diodes and blocking diodes have become a standard feature to improve the performance of PV strings or arrays under PSC. However, the output current-voltage (I–V) characteristic varies with different shading patterns, which increases difficulties in theoretical analysis. In this paper, the output characteristics of series string, parallel string and series-parallel (SP) array under PSC are analyzed theoretically. The light levels are extended from simple three-level illumination to N-level illumination. This provides a theoretical basis for constructing the structure of PV arrays and researching the operational process of PV arrays under PSC analytically.
{"title":"Studies on Diode Effects in Photovoltaic Array under Partial Shading Condition","authors":"Qiunan Xu, Xingshuo Li, Chunmei Feng, S. Ding","doi":"10.1109/REPE52765.2021.9617004","DOIUrl":"https://doi.org/10.1109/REPE52765.2021.9617004","url":null,"abstract":"Partial shading condition (PSC) is an unavoidable complication in the field of photovoltaic (PV) systems. Bypass diodes and blocking diodes have become a standard feature to improve the performance of PV strings or arrays under PSC. However, the output current-voltage (I–V) characteristic varies with different shading patterns, which increases difficulties in theoretical analysis. In this paper, the output characteristics of series string, parallel string and series-parallel (SP) array under PSC are analyzed theoretically. The light levels are extended from simple three-level illumination to N-level illumination. This provides a theoretical basis for constructing the structure of PV arrays and researching the operational process of PV arrays under PSC analytically.","PeriodicalId":136285,"journal":{"name":"2021 IEEE 4th International Conference on Renewable Energy and Power Engineering (REPE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114984992","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}
Pub Date : 2021-10-09DOI: 10.1109/REPE52765.2021.9617019
Paweł Rogowski, M. Rogowska, Tomasz Smaz, F. Grapow
In recent years, the wind has been widely used as a clean source of renewable energy. In cities and suburban areas, the wind speeds are relatively low therefore the Small Wind Turbines (SWT) are the most convenient solution for energy harvesting. To maximize the turbine's outcomes, it is important to achieve high efficiency in a wide range of operational points. Additionally, the cut-in speed should be as low as possible to allow electricity generation even for very low values of wind speeds. The main purpose of this work is to share the outcomes of an experimental investigation of the SWT generator's coils switching system based on the modified Dahlander pole changing circuit. Implementation of such a system improves machine performance, thus rises efficiency, reduces the cut-in speed, etc. The presented experimental results were validated during the International Small Wind Turbine Contest 2019 (ISWTC 2019) where the SWT with implemented coils switching system was tested in the wind tunnel.
{"title":"Small Wind Turbine Off-Grid Power Generation Optimization","authors":"Paweł Rogowski, M. Rogowska, Tomasz Smaz, F. Grapow","doi":"10.1109/REPE52765.2021.9617019","DOIUrl":"https://doi.org/10.1109/REPE52765.2021.9617019","url":null,"abstract":"In recent years, the wind has been widely used as a clean source of renewable energy. In cities and suburban areas, the wind speeds are relatively low therefore the Small Wind Turbines (SWT) are the most convenient solution for energy harvesting. To maximize the turbine's outcomes, it is important to achieve high efficiency in a wide range of operational points. Additionally, the cut-in speed should be as low as possible to allow electricity generation even for very low values of wind speeds. The main purpose of this work is to share the outcomes of an experimental investigation of the SWT generator's coils switching system based on the modified Dahlander pole changing circuit. Implementation of such a system improves machine performance, thus rises efficiency, reduces the cut-in speed, etc. The presented experimental results were validated during the International Small Wind Turbine Contest 2019 (ISWTC 2019) where the SWT with implemented coils switching system was tested in the wind tunnel.","PeriodicalId":136285,"journal":{"name":"2021 IEEE 4th International Conference on Renewable Energy and Power Engineering (REPE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124437569","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}
Pub Date : 2021-10-09DOI: 10.1109/REPE52765.2021.9617065
Pengfei Zhang, Shunchao Wang, Zhao He, Tuo Zhou, Hua Ye, Ning Zhang
In order to adapt the intermittency and volatility of renewable energy in power system, it is necessary to improve the frequency regulation ability of the existing large-scale coal-fired power units, which is significant to system stability and flexibility. Flexible energy facilities, such as high-voltage electrode boiler, can be integrated into coal-fired power units to participate in frequency regulation service. One of the key issues of the integrated scheme is how to dispatch high-voltage electrode boiler properly. To achieve it, this paper proposes an optimal economic scheduling approach for electrode boilers based on two-stage stochastic programming. Statistical characteristics of the AGC signal, the auxiliary service market rules and performances of different units are fully considered in the process. We finally determine the optimal operating base point and output of the electrode boiler in frequency regulation. Compared with the stochastic simulation using Monte Carlo approach, this approach is much less computationally heavy and easier to implement. A power plant case shows that the reasonable scheduling of the highvoltage electrode boiler using the proposed approach can realize the complementary advantages of different units, thereby efficiently improving the regulation performance and revenue.
{"title":"Optimal Economic Dispatching Approach of High-Voltage Electrode Boiler Combined with Coal-Fired Power Units to Participate in Frequency Regulation Service Based on Two-Stage Stochastic Programming","authors":"Pengfei Zhang, Shunchao Wang, Zhao He, Tuo Zhou, Hua Ye, Ning Zhang","doi":"10.1109/REPE52765.2021.9617065","DOIUrl":"https://doi.org/10.1109/REPE52765.2021.9617065","url":null,"abstract":"In order to adapt the intermittency and volatility of renewable energy in power system, it is necessary to improve the frequency regulation ability of the existing large-scale coal-fired power units, which is significant to system stability and flexibility. Flexible energy facilities, such as high-voltage electrode boiler, can be integrated into coal-fired power units to participate in frequency regulation service. One of the key issues of the integrated scheme is how to dispatch high-voltage electrode boiler properly. To achieve it, this paper proposes an optimal economic scheduling approach for electrode boilers based on two-stage stochastic programming. Statistical characteristics of the AGC signal, the auxiliary service market rules and performances of different units are fully considered in the process. We finally determine the optimal operating base point and output of the electrode boiler in frequency regulation. Compared with the stochastic simulation using Monte Carlo approach, this approach is much less computationally heavy and easier to implement. A power plant case shows that the reasonable scheduling of the highvoltage electrode boiler using the proposed approach can realize the complementary advantages of different units, thereby efficiently improving the regulation performance and revenue.","PeriodicalId":136285,"journal":{"name":"2021 IEEE 4th International Conference on Renewable Energy and Power Engineering (REPE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134162858","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}
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