The traditional Buck-Boost topology has large output current ripple, large device stress, and reverse polarity of input and output, so a smart controller based on cascaded Boost-Buck for high power laser diode is proposed in this paper. Firstly, by judging the value of input voltage and choosing different operating modes, the smart controller realizes two switches to be controlled separately, which ensures the stability of output current and increases the flexibility of the algorithm. Then, the effect of the phase shifted Angle on the voltage ripple of Boost output side is analyzed qualitatively. Finally, the simulation model and experimental platform is built to verify the feasibility and effectiveness of the smart controller.
{"title":"A Smart Controller Based on Cascaded Boost-Buck Converter for High Power Laser Diode","authors":"Ruiying Li, Xikun Chen, Yongjian Chen, Xuhui Ni, Junnan Gu","doi":"10.1109/REPE52765.2021.9617101","DOIUrl":"https://doi.org/10.1109/REPE52765.2021.9617101","url":null,"abstract":"The traditional Buck-Boost topology has large output current ripple, large device stress, and reverse polarity of input and output, so a smart controller based on cascaded Boost-Buck for high power laser diode is proposed in this paper. Firstly, by judging the value of input voltage and choosing different operating modes, the smart controller realizes two switches to be controlled separately, which ensures the stability of output current and increases the flexibility of the algorithm. Then, the effect of the phase shifted Angle on the voltage ripple of Boost output side is analyzed qualitatively. Finally, the simulation model and experimental platform is built to verify the feasibility and effectiveness of the smart controller.","PeriodicalId":136285,"journal":{"name":"2021 IEEE 4th International Conference on Renewable Energy and Power Engineering (REPE)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127086920","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/REPE52765.2021.9617048
Zhiguang Lin, Junda Qin, Yuzhuo Bai, Lei Shi, Jianwei Yang, Zhiyuan Liu
The converter valve is the core equipment of UHV DC transmission. The failure of converter valve will cause the outage of the DC transmission, which will cause serious economic losses and even cause major safety accidents. However, the current technology can only make logical judgments on whether the converter valve is in a normal state and cannot judge the health status of the converter valve; and then carry out maintenance and replacement plans for the key components of the converter valve according to the health status. To meet the technical requirements for monitoring the health status of converter valves, the method is carried out on the health status of converter valves for UHVDC transmission. Firstly, a multi-source heterogeneous data acquisition program for UHVDC converter valve status parameters is proposed. After that, a data feature extraction program is invented; combined with the data feature extraction method, a single index and multi-index converter valve health status assessment is carried out. Finally, a feature extraction system for high-voltage DC converter valves was built in the laboratory to verify the effectiveness of the feature extraction function. The test results show that the feature parameters and health status analysis proposed in this paper can effectively extract the features of the converter valve and complete it and analysis the health status of the converter valve.
{"title":"Research on Feature Parameter Extraction and Health Analysis Method of UHV DC Converter Valve","authors":"Zhiguang Lin, Junda Qin, Yuzhuo Bai, Lei Shi, Jianwei Yang, Zhiyuan Liu","doi":"10.1109/REPE52765.2021.9617048","DOIUrl":"https://doi.org/10.1109/REPE52765.2021.9617048","url":null,"abstract":"The converter valve is the core equipment of UHV DC transmission. The failure of converter valve will cause the outage of the DC transmission, which will cause serious economic losses and even cause major safety accidents. However, the current technology can only make logical judgments on whether the converter valve is in a normal state and cannot judge the health status of the converter valve; and then carry out maintenance and replacement plans for the key components of the converter valve according to the health status. To meet the technical requirements for monitoring the health status of converter valves, the method is carried out on the health status of converter valves for UHVDC transmission. Firstly, a multi-source heterogeneous data acquisition program for UHVDC converter valve status parameters is proposed. After that, a data feature extraction program is invented; combined with the data feature extraction method, a single index and multi-index converter valve health status assessment is carried out. Finally, a feature extraction system for high-voltage DC converter valves was built in the laboratory to verify the effectiveness of the feature extraction function. The test results show that the feature parameters and health status analysis proposed in this paper can effectively extract the features of the converter valve and complete it and analysis the health status of the converter valve.","PeriodicalId":136285,"journal":{"name":"2021 IEEE 4th International Conference on Renewable Energy and Power Engineering (REPE)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125119762","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/REPE52765.2021.9617016
Junhao Cui, G. Tian, Guangchen Liu, Sufang Wen, Zihao Guo
Energy storage (ES) system in DC microgrid has the functions of stabilizing bus voltage and improving power quality, it is an important part of DC microgrid. The battery-supercapacitor hybrid energy storage system (HESS) has more advantages than traditional ES system. In order to make full use of the advantages of HESS and realize the reasonable distribution of power, a power distribution control strategy for HESS is studied in this paper. The virtual resistor or virtual capacitor is extended into the control loop of each ES element to change the output impedance of the converter and then the power distribution of HESS is realized. Battery is mainly responsible for the low-frequency part of power fluctuations, and supercapacitor (SC) can quickly respond to the high-frequency part of power fluctuations. The two cooperate with each other to increase the service life of ES equipment and ensure the stable operation of the system. Finally, the correctness and effectiveness of the control strategy are verified by the simulation work in real time digital simulator (RTDS).
{"title":"Power Distribution Control Strategy of Hybrid Energy Storage System in Isolated DC Microgrid","authors":"Junhao Cui, G. Tian, Guangchen Liu, Sufang Wen, Zihao Guo","doi":"10.1109/REPE52765.2021.9617016","DOIUrl":"https://doi.org/10.1109/REPE52765.2021.9617016","url":null,"abstract":"Energy storage (ES) system in DC microgrid has the functions of stabilizing bus voltage and improving power quality, it is an important part of DC microgrid. The battery-supercapacitor hybrid energy storage system (HESS) has more advantages than traditional ES system. In order to make full use of the advantages of HESS and realize the reasonable distribution of power, a power distribution control strategy for HESS is studied in this paper. The virtual resistor or virtual capacitor is extended into the control loop of each ES element to change the output impedance of the converter and then the power distribution of HESS is realized. Battery is mainly responsible for the low-frequency part of power fluctuations, and supercapacitor (SC) can quickly respond to the high-frequency part of power fluctuations. The two cooperate with each other to increase the service life of ES equipment and ensure the stable operation of the system. Finally, the correctness and effectiveness of the control strategy are verified by the simulation work in real time digital simulator (RTDS).","PeriodicalId":136285,"journal":{"name":"2021 IEEE 4th International Conference on Renewable Energy and Power Engineering (REPE)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117033042","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/REPE52765.2021.9617051
Mingxuan Li, Wei Wei, S. Mei
With the development of the power market, pricing-based demand response is becoming a promising mechanism in the distribution network, where some flexible load demand such as heat demand varies according to the real-time locational marginal price (LMP). Such responsive load may leave a complex impact on the power market, as responsive load and LMP will affect each other, and eventually reaches an equilibrium. As a result, the sensitivity of the LMP becomes harder to analyze because the sensitivity is related to the variation of the equilibrium point. In this paper, we point out that the challenge of such sensitivity analysis actually comes from the fact that the pricing-based demand response explicitly introduces dual variables into the optimization problem, which has not yet been considered in the existing sensitivity studies. Based on such analysis, an advanced form of sensitivity analysis is proposed to acquire the variation of the LMP with load demand when considering demand response in the distribution system.
{"title":"Impact of Price-Elastic Heat Demand on the Equilibrium of Distribution Power Market","authors":"Mingxuan Li, Wei Wei, S. Mei","doi":"10.1109/REPE52765.2021.9617051","DOIUrl":"https://doi.org/10.1109/REPE52765.2021.9617051","url":null,"abstract":"With the development of the power market, pricing-based demand response is becoming a promising mechanism in the distribution network, where some flexible load demand such as heat demand varies according to the real-time locational marginal price (LMP). Such responsive load may leave a complex impact on the power market, as responsive load and LMP will affect each other, and eventually reaches an equilibrium. As a result, the sensitivity of the LMP becomes harder to analyze because the sensitivity is related to the variation of the equilibrium point. In this paper, we point out that the challenge of such sensitivity analysis actually comes from the fact that the pricing-based demand response explicitly introduces dual variables into the optimization problem, which has not yet been considered in the existing sensitivity studies. Based on such analysis, an advanced form of sensitivity analysis is proposed to acquire the variation of the LMP with load demand when considering demand response in the distribution system.","PeriodicalId":136285,"journal":{"name":"2021 IEEE 4th International Conference on Renewable Energy and Power Engineering (REPE)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128541548","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/REPE52765.2021.9617086
Fu Xing, Yi Liu, Zhanjiang Li, Jing Xu, Wei-bing Cheng, Xinjia Song
With the development of flexible HVDC transmission systems, there impact on AC systems is growing. When the AC system fails, the short-circuit current contributed by the converter station is the core factor affecting the relay protection and the voltage level. However, there is no mature method for detailed analysis and accurate calculation of the transient process. To solve this problem, this paper takes an MMC-based DC grid project as the object to study the transient process of the fault current contributed by the converter station after a symmetrical ground fault occurs on the AC side. In addition, the equivalent model of internal current path and submodule of converter station is established, and a calculation method of the short-circuit current based on operation circuit is given. Finally, a simulation model is built based on PSCAD, which helps to verify the correctness of the proposed short-circuit current calculation method.
{"title":"Analysis and Calculation of Symmetrical Ground Fault Short Circuit Current Contributed by MMC-HVDC Converter Station at AC Side","authors":"Fu Xing, Yi Liu, Zhanjiang Li, Jing Xu, Wei-bing Cheng, Xinjia Song","doi":"10.1109/REPE52765.2021.9617086","DOIUrl":"https://doi.org/10.1109/REPE52765.2021.9617086","url":null,"abstract":"With the development of flexible HVDC transmission systems, there impact on AC systems is growing. When the AC system fails, the short-circuit current contributed by the converter station is the core factor affecting the relay protection and the voltage level. However, there is no mature method for detailed analysis and accurate calculation of the transient process. To solve this problem, this paper takes an MMC-based DC grid project as the object to study the transient process of the fault current contributed by the converter station after a symmetrical ground fault occurs on the AC side. In addition, the equivalent model of internal current path and submodule of converter station is established, and a calculation method of the short-circuit current based on operation circuit is given. Finally, a simulation model is built based on PSCAD, which helps to verify the correctness of the proposed short-circuit current calculation method.","PeriodicalId":136285,"journal":{"name":"2021 IEEE 4th International Conference on Renewable Energy and Power Engineering (REPE)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130552502","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/REPE52765.2021.9617039
Havan Hassan, Z. S. Aswad
The depletion of non-renewable energy resources and global water shortage has led to search and develop alternative renewable sources such as utilization of microbial fuel cell in different applications. Photosynthesis Sediment Microbial Fuel Cells (P-SMFCs) is one form of sustainable green energy source which that produced electricity while treating wastewater, although many studies for P-SMFCs are related to its main function as a wastewater treatment unit, there are limited information about the effected factors on the power generation of single chamber P-SMFCs using wastewater as a fuel source. Current study will focus on the affected parameters on byproduct (power generation) such as; electrode distance and location, electrodes surface area, temperature, and cathode aeration. A cylindrical container filled with a gravel filter, the anode and cathode electrodes were fixed on different layers of the filter, as were planting paper plants available and used in previous studies. This system was feed in batch mood with wastewater that collected from Al-Rustamiyah WWTP. Results showed that; Electricity generation performed better when minimize the distance between anode and cathode with maximum voltage of 1050±10mV at 5cm while maximum voltage of 588 ±30 mV at 8cm, Electricity generation is proportional to increase the electrodes surface area, whereas 440 cm2 produced more voltage than 220cm2 and 110cm2 which was (1553±12 mV, 1217±9 mV, and 1050±10mV ) on 10th day respectively, Three temperature values were examined in this study (36,32,25)C° and the beast performance was at 32C° which is related to the suitable temperature value for metabolism process, and Electricity generation dropped from 2074±18 mV to 1884±18 mV when applied aeration to the system.
{"title":"The Effect of Different Parameters on Single Chamber Photosynthesis SMFC Based on Electricity Generation as a by- product Item","authors":"Havan Hassan, Z. S. Aswad","doi":"10.1109/REPE52765.2021.9617039","DOIUrl":"https://doi.org/10.1109/REPE52765.2021.9617039","url":null,"abstract":"The depletion of non-renewable energy resources and global water shortage has led to search and develop alternative renewable sources such as utilization of microbial fuel cell in different applications. Photosynthesis Sediment Microbial Fuel Cells (P-SMFCs) is one form of sustainable green energy source which that produced electricity while treating wastewater, although many studies for P-SMFCs are related to its main function as a wastewater treatment unit, there are limited information about the effected factors on the power generation of single chamber P-SMFCs using wastewater as a fuel source. Current study will focus on the affected parameters on byproduct (power generation) such as; electrode distance and location, electrodes surface area, temperature, and cathode aeration. A cylindrical container filled with a gravel filter, the anode and cathode electrodes were fixed on different layers of the filter, as were planting paper plants available and used in previous studies. This system was feed in batch mood with wastewater that collected from Al-Rustamiyah WWTP. Results showed that; Electricity generation performed better when minimize the distance between anode and cathode with maximum voltage of 1050±10mV at 5cm while maximum voltage of 588 ±30 mV at 8cm, Electricity generation is proportional to increase the electrodes surface area, whereas 440 cm2 produced more voltage than 220cm2 and 110cm2 which was (1553±12 mV, 1217±9 mV, and 1050±10mV ) on 10th day respectively, Three temperature values were examined in this study (36,32,25)C° and the beast performance was at 32C° which is related to the suitable temperature value for metabolism process, and Electricity generation dropped from 2074±18 mV to 1884±18 mV when applied aeration to the system.","PeriodicalId":136285,"journal":{"name":"2021 IEEE 4th International Conference on Renewable Energy and Power Engineering (REPE)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132801929","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/REPE52765.2021.9617110
Jian Wu, D. Jia, Zihang Yuan, Dianguo Xu
Low frequency oscillation of power system has become an important problem because of the increasing complexity of power network. Multi-band power system stabilizer (PSS4B) has been widely used in power systems because it can improve the dynamic stability of the system in a large frequency range. Therefore, it is an essential task in power system operation to adjust PSS parameters to obtain satisfactory performance. In this paper, an improved particle swarm optimization (PSO) algorithm is proposed and used to tune the PSS parameters. Then, this paper investigates the power system dynamic performances affected by the tuned PSS parameters. Through time domain transient stability simulation, the results show that due to the complexity of low-frequency oscillation in the actual system, setting the PSS4B parameters according to IEEE standard can not guarantee well system performance, and the optimization based method can be used to improve the systems' performance.
{"title":"Tunning of PSS4B Using Improved SimuAPSO Algorithm","authors":"Jian Wu, D. Jia, Zihang Yuan, Dianguo Xu","doi":"10.1109/REPE52765.2021.9617110","DOIUrl":"https://doi.org/10.1109/REPE52765.2021.9617110","url":null,"abstract":"Low frequency oscillation of power system has become an important problem because of the increasing complexity of power network. Multi-band power system stabilizer (PSS4B) has been widely used in power systems because it can improve the dynamic stability of the system in a large frequency range. Therefore, it is an essential task in power system operation to adjust PSS parameters to obtain satisfactory performance. In this paper, an improved particle swarm optimization (PSO) algorithm is proposed and used to tune the PSS parameters. Then, this paper investigates the power system dynamic performances affected by the tuned PSS parameters. Through time domain transient stability simulation, the results show that due to the complexity of low-frequency oscillation in the actual system, setting the PSS4B parameters according to IEEE standard can not guarantee well system performance, and the optimization based method can be used to improve the systems' performance.","PeriodicalId":136285,"journal":{"name":"2021 IEEE 4th International Conference on Renewable Energy and Power Engineering (REPE)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133577664","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/REPE52765.2021.9617024
Junlin Li, Jie Han, Xiao Liu, Yanyu Zhang, Yingxiao Zhang, Xu Zhang, Zhichao Liu, Z. Guan
In disaster-prone cities or regions, allocating certain emergency power supplies for essential loads can improve power supply reliability and reduce power outage losses. Aiming at the configuration problem of anti-disaster mobile power vehicles, this paper establishes the comprehensive coefficient of importance according to three typical characteristics of different loads and establishes the capacity planning model with the objective of minimizing the comprehensive loss of the system, taking the loss of emergency response, the loss of mobile power vehicle dispatching, the loss of power supply restoration and the investment cost of the mobile power vehicles as the objective. The mobile power vehicles prioritize satisfying the core load and carrying out the optimal allocation in twenty-two load points and three power supply stations. In this paper, the problem is transformed into a multi-stage decision-making process based on dynamic programming. Simulation results show the correctness of the proposed model and the effectiveness of the algorithm.
{"title":"Optimal Capacity Allocation of Anti-Disaster Mobile Power Vehicles based on Dynamic Programming","authors":"Junlin Li, Jie Han, Xiao Liu, Yanyu Zhang, Yingxiao Zhang, Xu Zhang, Zhichao Liu, Z. Guan","doi":"10.1109/REPE52765.2021.9617024","DOIUrl":"https://doi.org/10.1109/REPE52765.2021.9617024","url":null,"abstract":"In disaster-prone cities or regions, allocating certain emergency power supplies for essential loads can improve power supply reliability and reduce power outage losses. Aiming at the configuration problem of anti-disaster mobile power vehicles, this paper establishes the comprehensive coefficient of importance according to three typical characteristics of different loads and establishes the capacity planning model with the objective of minimizing the comprehensive loss of the system, taking the loss of emergency response, the loss of mobile power vehicle dispatching, the loss of power supply restoration and the investment cost of the mobile power vehicles as the objective. The mobile power vehicles prioritize satisfying the core load and carrying out the optimal allocation in twenty-two load points and three power supply stations. In this paper, the problem is transformed into a multi-stage decision-making process based on dynamic programming. Simulation results show the correctness of the proposed model and the effectiveness of the algorithm.","PeriodicalId":136285,"journal":{"name":"2021 IEEE 4th International Conference on Renewable Energy and Power Engineering (REPE)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127053076","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/REPE52765.2021.9617108
Zhao Jianli, Wang Lei, Yan Xu, Wang Liang, Dang Ning
FDZ damper is an important component of line conductor to prevent aeolian vibration. Its power characteristics are not only an important basis for judging the performance of FDZ damper, but also an important basis for anti vibration design and improving product design. According to the vibration characteristics of the hammer head of FDZ damper and considering the degrees of freedom of the hammer head in three directions, the theoretical calculation model of FDZ damper is established in this paper. The power characteristic curve obtained by the theoretical model is compared with the power characteristic curve obtained by the experiment. It is found that the trend of power peak, peak frequency, graph and the position of peak and trough are in good agreement, which verifies the correctness of the model. The model can be used in the calculation of aeolian vibration response of transmission line, and provide a theoretical basis for anti vibration design of transmission line.
{"title":"Theoretical Calculation and Experimental Study on Power Characteristics of FDZ Damper","authors":"Zhao Jianli, Wang Lei, Yan Xu, Wang Liang, Dang Ning","doi":"10.1109/REPE52765.2021.9617108","DOIUrl":"https://doi.org/10.1109/REPE52765.2021.9617108","url":null,"abstract":"FDZ damper is an important component of line conductor to prevent aeolian vibration. Its power characteristics are not only an important basis for judging the performance of FDZ damper, but also an important basis for anti vibration design and improving product design. According to the vibration characteristics of the hammer head of FDZ damper and considering the degrees of freedom of the hammer head in three directions, the theoretical calculation model of FDZ damper is established in this paper. The power characteristic curve obtained by the theoretical model is compared with the power characteristic curve obtained by the experiment. It is found that the trend of power peak, peak frequency, graph and the position of peak and trough are in good agreement, which verifies the correctness of the model. The model can be used in the calculation of aeolian vibration response of transmission line, and provide a theoretical basis for anti vibration design of transmission line.","PeriodicalId":136285,"journal":{"name":"2021 IEEE 4th International Conference on Renewable Energy and Power Engineering (REPE)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131915135","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/REPE52765.2021.9617052
Hong Hu, Libin Wen, Kun Zheng
A short-term optimization model of multi-source power system including wind power units, photovoltaic units, nuclear power units, thermal units, and hydropower pumps is proposed. For power systems under high proportion of wind power and photovoltaic connection, the goal of model is to consume a large amount of new energies and improve the system economy., while the load tracking performance of the new generation of nuclear power units can be used under the condition of ensuring safety to alleviate the pressure of peak load regulation with high proportion of wind power and photovoltaic connection. Characterize the randomness, intermittentness and volatility of wind power and photovoltaic power units ; refine the peak load regulation of thermal power units into ordinary and deep mode, and refine their economic indicators. Calculations show that the model is feasible in calculating short-term optimization of multi-source power systems. It can improve wind power and photovoltaic absorption capacity and system economy. It has good application value for ensuring the consumption of clean energies and improve the economic of the power system.
{"title":"Short-term Optimization of Multi-source System with High Proportion of Wind Power and Photovoltaic","authors":"Hong Hu, Libin Wen, Kun Zheng","doi":"10.1109/REPE52765.2021.9617052","DOIUrl":"https://doi.org/10.1109/REPE52765.2021.9617052","url":null,"abstract":"A short-term optimization model of multi-source power system including wind power units, photovoltaic units, nuclear power units, thermal units, and hydropower pumps is proposed. For power systems under high proportion of wind power and photovoltaic connection, the goal of model is to consume a large amount of new energies and improve the system economy., while the load tracking performance of the new generation of nuclear power units can be used under the condition of ensuring safety to alleviate the pressure of peak load regulation with high proportion of wind power and photovoltaic connection. Characterize the randomness, intermittentness and volatility of wind power and photovoltaic power units ; refine the peak load regulation of thermal power units into ordinary and deep mode, and refine their economic indicators. Calculations show that the model is feasible in calculating short-term optimization of multi-source power systems. It can improve wind power and photovoltaic absorption capacity and system economy. It has good application value for ensuring the consumption of clean energies and improve the economic of the power system.","PeriodicalId":136285,"journal":{"name":"2021 IEEE 4th International Conference on Renewable Energy and Power Engineering (REPE)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134207385","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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