Media Cahyo Untoro, M. S. Wisnubroto, Yuni Nurdyanti, D. Farida, Vina Alvionita, Tamara Damayanti, Laila Noer Islami Hidayatullah, Febby Sartika
{"title":"Analysis K-means of Covid-19 cases in Bandar Lampung and South Lampung","authors":"Media Cahyo Untoro, M. S. Wisnubroto, Yuni Nurdyanti, D. Farida, Vina Alvionita, Tamara Damayanti, Laila Noer Islami Hidayatullah, Febby Sartika","doi":"10.1063/5.0119163","DOIUrl":"https://doi.org/10.1063/5.0119163","url":null,"abstract":"","PeriodicalId":62545,"journal":{"name":"电工电能新技术","volume":"28 9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82727922","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 : 2021-12-01DOI: 10.1109/ATEEE54283.2021.00025
Jing Guo, Yujie Zhang
In order to solve the complex illuminance modeling and calculation problem in indoor lighting environment, and improve the energy-saving effect of lighting optimization control algorithm. In this paper, a radial basis function neural network (RBFNN) illuminance model is proposed to simplify the calculation process of illuminance and the calculated illuminance value can provide data support for the optimization control calculation as the feedback link of optimization control. In this paper, a genetic simulated annealing algorithm is designed by combining genetic algorithm and simulated annealing algorithm to avoid the problem of traditional control algorithm falling into local optimal solution. Through the simulation verification of three lighting scenes with different personnel distribution, the traditional particle swarm optimization algorithm saves 46.00%, 38.00% and 37.11% energy respectively, while the genetic simulated annealing algorithm saves 47.22%, 46.67% and 41.78 energy respectively. It can be seen that the latter has a better energy-saving effect in the three scenes.
{"title":"Research on Control Method of Comfortable Lighting and Energy Saving Lighting","authors":"Jing Guo, Yujie Zhang","doi":"10.1109/ATEEE54283.2021.00025","DOIUrl":"https://doi.org/10.1109/ATEEE54283.2021.00025","url":null,"abstract":"In order to solve the complex illuminance modeling and calculation problem in indoor lighting environment, and improve the energy-saving effect of lighting optimization control algorithm. In this paper, a radial basis function neural network (RBFNN) illuminance model is proposed to simplify the calculation process of illuminance and the calculated illuminance value can provide data support for the optimization control calculation as the feedback link of optimization control. In this paper, a genetic simulated annealing algorithm is designed by combining genetic algorithm and simulated annealing algorithm to avoid the problem of traditional control algorithm falling into local optimal solution. Through the simulation verification of three lighting scenes with different personnel distribution, the traditional particle swarm optimization algorithm saves 46.00%, 38.00% and 37.11% energy respectively, while the genetic simulated annealing algorithm saves 47.22%, 46.67% and 41.78 energy respectively. It can be seen that the latter has a better energy-saving effect in the three scenes.","PeriodicalId":62545,"journal":{"name":"电工电能新技术","volume":"293 1","pages":"87-92"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75418903","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 : 2021-12-01DOI: 10.1109/ATEEE54283.2021.00027
Zhang Yu, S. Khan, Hafiz Muhammad Zia-ul-haq
This research investigates the impact of renewable energy, transportation services, advanced technology, and energy efficiency on the gross domestic product (GDP) in 24 European economies. Employing fixed effect panel analysis, it is found that GDP as a proxy of economic performance has a significant and positive association with renewable energy, transportation, advanced technologies, and energy efficiency. It is implied that renewable energy consumption and energy efficiency factors enhance resource utilization and reduce economic costs, which ultimately helps countries boost their economic performance. Moreover, it is also argued that efficient transportation and innovative technologies promote renewable energy usage and a green economy. Hence, these factors help countries to achieve economic goals and protect the environment.
{"title":"Application of Renewable Energy, Advanced Technology, and Energy Efficiency: A Fresh Insight from European Countries","authors":"Zhang Yu, S. Khan, Hafiz Muhammad Zia-ul-haq","doi":"10.1109/ATEEE54283.2021.00027","DOIUrl":"https://doi.org/10.1109/ATEEE54283.2021.00027","url":null,"abstract":"This research investigates the impact of renewable energy, transportation services, advanced technology, and energy efficiency on the gross domestic product (GDP) in 24 European economies. Employing fixed effect panel analysis, it is found that GDP as a proxy of economic performance has a significant and positive association with renewable energy, transportation, advanced technologies, and energy efficiency. It is implied that renewable energy consumption and energy efficiency factors enhance resource utilization and reduce economic costs, which ultimately helps countries boost their economic performance. Moreover, it is also argued that efficient transportation and innovative technologies promote renewable energy usage and a green economy. Hence, these factors help countries to achieve economic goals and protect the environment.","PeriodicalId":62545,"journal":{"name":"电工电能新技术","volume":"7 1","pages":"99-103"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87792679","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 : 2021-12-01DOI: 10.1109/ATEEE54283.2021.00021
Yihui Chen, L. Lin, Wenxin Huang, Xin Tian, Jun Wu, Zihui Guo, Zichen Liu
With the proposal of the “dual carbon” goal and the large-scale integration of new energy into the grid, there are uncertain factors in power supply, power grid and load, which will significantly enhance the operation risk of power grid. On this basis, considering the impact of natural disasters, the establishment and construction of the core backbone grid is of great importance. This paper proposes a risk assessment system of power grid operation involving multi-link uncertain factors. And the search model of the core backbone grid is constructed with the minimum comprehensive risk index and the minimum total line length as the objective function, and the network connectivity and power network security operation as the constraints. For stronger searching ability, the traditional fireworks algorithm is improved by introducing new explosion mode, new Gaussian variation, new mapping rules and elite-random selection strategy. Finally, the improved IEEE 39 system is simulated and the obtained backbone network frame meets the search requirements. Through comparative analysis of the grid changes under energy transition, the rationality of the objective function and the validity of the search system can be proved by the search results.
{"title":"Construction Method of Core Backbone Grid Based on Improved Fireworks Algorithm and Risk Theory","authors":"Yihui Chen, L. Lin, Wenxin Huang, Xin Tian, Jun Wu, Zihui Guo, Zichen Liu","doi":"10.1109/ATEEE54283.2021.00021","DOIUrl":"https://doi.org/10.1109/ATEEE54283.2021.00021","url":null,"abstract":"With the proposal of the “dual carbon” goal and the large-scale integration of new energy into the grid, there are uncertain factors in power supply, power grid and load, which will significantly enhance the operation risk of power grid. On this basis, considering the impact of natural disasters, the establishment and construction of the core backbone grid is of great importance. This paper proposes a risk assessment system of power grid operation involving multi-link uncertain factors. And the search model of the core backbone grid is constructed with the minimum comprehensive risk index and the minimum total line length as the objective function, and the network connectivity and power network security operation as the constraints. For stronger searching ability, the traditional fireworks algorithm is improved by introducing new explosion mode, new Gaussian variation, new mapping rules and elite-random selection strategy. Finally, the improved IEEE 39 system is simulated and the obtained backbone network frame meets the search requirements. Through comparative analysis of the grid changes under energy transition, the rationality of the objective function and the validity of the search system can be proved by the search results.","PeriodicalId":62545,"journal":{"name":"电工电能新技术","volume":"581 1","pages":"62-68"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77208978","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 : 2021-12-01DOI: 10.1109/ATEEE54283.2021.00013
M. Ehsan, R. Badar
The study of power flow and contingency is essential for planning future power system expansion. It is necessary to determine the optimal way to operate existing power systems. D-FACTS devices are used to eliminate transmission line infractions. The aim of this paper is to investigate the optimal placement of FACTS devices in transmission lines. For this, a 37-bus benchmark test case has been selected for testing. The results show violations in transmission lines and no other path to install new transmission lines between these buses. After getting results for optimal placement of FACTS from the contingency analysis tool in PowerWorld Simulator, D-FACTS devices are placed on overloaded transmission lines. The number of violations decreased from 98 to 53 after placing FACTS at an appropriate location in the transmission line in the power system.
{"title":"Optimal Placement of FACTS using Contingency Analysis in PowerWorld Simulator","authors":"M. Ehsan, R. Badar","doi":"10.1109/ATEEE54283.2021.00013","DOIUrl":"https://doi.org/10.1109/ATEEE54283.2021.00013","url":null,"abstract":"The study of power flow and contingency is essential for planning future power system expansion. It is necessary to determine the optimal way to operate existing power systems. D-FACTS devices are used to eliminate transmission line infractions. The aim of this paper is to investigate the optimal placement of FACTS devices in transmission lines. For this, a 37-bus benchmark test case has been selected for testing. The results show violations in transmission lines and no other path to install new transmission lines between these buses. After getting results for optimal placement of FACTS from the contingency analysis tool in PowerWorld Simulator, D-FACTS devices are placed on overloaded transmission lines. The number of violations decreased from 98 to 53 after placing FACTS at an appropriate location in the transmission line in the power system.","PeriodicalId":62545,"journal":{"name":"电工电能新技术","volume":"170 1","pages":"21-25"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83444883","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 : 2021-12-01DOI: 10.1109/ATEEE54283.2021.00022
Yuting Sun
The healthy condition of the capacitor in each submodule (SM) is of great importance for the safety and stability operation of modular multilevel converter (MMC). An MMC structure often contains hundreds of SMs. Although the metallized polypropylene film (MPPF) capacitors with superior performance are widely used in current MMC projects, the aging and failure of those capacitors are still inevitable. Considering the most common cause of failure (self-healing and end-spray detachment), equivalent series capacitance (ESC) and equivalent series resistance (ESR) are employed to account for condition parameters of the MPPF capacitor. A new SM impedance measurement technique is proposed to monitor the condition of MPPF capacitors in MMC. Measurement technique extracts arm current, switching sequence and voltage signal of SMs which are already existed in control system, SMs capacitor voltage and current is then calculated by above signals. After processing its various frequency components by fast Fourier transform (FFT) algorithm, ESC and ESR of MPPF capacitor can be figured out with desired frequency. A 2.1kVA MMC system is established in MATLAB/Simulink. Simulation results verified the effectiveness and accuracy of the monitoring technique.
{"title":"Metallized Polypropylene Film Capacitor Condition Monitoring in MMC Based on Impedance Measurement","authors":"Yuting Sun","doi":"10.1109/ATEEE54283.2021.00022","DOIUrl":"https://doi.org/10.1109/ATEEE54283.2021.00022","url":null,"abstract":"The healthy condition of the capacitor in each submodule (SM) is of great importance for the safety and stability operation of modular multilevel converter (MMC). An MMC structure often contains hundreds of SMs. Although the metallized polypropylene film (MPPF) capacitors with superior performance are widely used in current MMC projects, the aging and failure of those capacitors are still inevitable. Considering the most common cause of failure (self-healing and end-spray detachment), equivalent series capacitance (ESC) and equivalent series resistance (ESR) are employed to account for condition parameters of the MPPF capacitor. A new SM impedance measurement technique is proposed to monitor the condition of MPPF capacitors in MMC. Measurement technique extracts arm current, switching sequence and voltage signal of SMs which are already existed in control system, SMs capacitor voltage and current is then calculated by above signals. After processing its various frequency components by fast Fourier transform (FFT) algorithm, ESC and ESR of MPPF capacitor can be figured out with desired frequency. A 2.1kVA MMC system is established in MATLAB/Simulink. Simulation results verified the effectiveness and accuracy of the monitoring technique.","PeriodicalId":62545,"journal":{"name":"电工电能新技术","volume":"124 1","pages":"69-73"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79252368","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 : 2021-12-01DOI: 10.1109/ATEEE54283.2021.00024
Hocine Belahya, A. Boubekri, R. Belarbi, Romani Zaide
Nowadays sector of a building is one of the biggest energy consuming field and ranked first in many countries. The energy consumption for the building is related to the design stage. Many factors that should be taken into account for this stage, such as techno-economical parameters, directly affect the building energy consumption. Co-simulation is applied to optimize the design of residential buildings located in a hot climate to minimize life cycle costs while increasing their energy efficiency. A new approach of building performance assessment based on parametric design and analysis life cycle cost used the co-simulation method, in this study, we reduced the need for seasonal energy consumption by air conditioners and analyzed life cycle cost, 15 thermal and geometric factors are selected in this study such as Surface, Factor form, heat transfer through the walls, roof, and ground, also coefficient of absorption for solar radiation of the roof and the wall, Windows to Wall Ration and Factor Solar of Windows for four directions North, South, East, and West. The results of the metamodel from the co-simulation are compared against those obtained from a TRNSYS dynamic simulation; the fractional factorial metamodel has been accurate results. Then, the optimal design features of the envelope building are determined with life cycle cost can be saved 30.21%.
{"title":"Optimization Design Envelope for Building in Hot Climate Using Design of Experiment and Life Cycle Cost","authors":"Hocine Belahya, A. Boubekri, R. Belarbi, Romani Zaide","doi":"10.1109/ATEEE54283.2021.00024","DOIUrl":"https://doi.org/10.1109/ATEEE54283.2021.00024","url":null,"abstract":"Nowadays sector of a building is one of the biggest energy consuming field and ranked first in many countries. The energy consumption for the building is related to the design stage. Many factors that should be taken into account for this stage, such as techno-economical parameters, directly affect the building energy consumption. Co-simulation is applied to optimize the design of residential buildings located in a hot climate to minimize life cycle costs while increasing their energy efficiency. A new approach of building performance assessment based on parametric design and analysis life cycle cost used the co-simulation method, in this study, we reduced the need for seasonal energy consumption by air conditioners and analyzed life cycle cost, 15 thermal and geometric factors are selected in this study such as Surface, Factor form, heat transfer through the walls, roof, and ground, also coefficient of absorption for solar radiation of the roof and the wall, Windows to Wall Ration and Factor Solar of Windows for four directions North, South, East, and West. The results of the metamodel from the co-simulation are compared against those obtained from a TRNSYS dynamic simulation; the fractional factorial metamodel has been accurate results. Then, the optimal design features of the envelope building are determined with life cycle cost can be saved 30.21%.","PeriodicalId":62545,"journal":{"name":"电工电能新技术","volume":"66 1","pages":"81-86"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86868410","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 : 2021-12-01DOI: 10.1109/ATEEE54283.2021.00023
Weiwei Wang, Chunjun Huang, Y. Zong
To realize decarbonization, green hydrogen has been boosted in Denmark with the support of power to hydrogen (P2H) technology by taking advantage of enormous wind energy. The work efficiency of P2H technology, converting electricity from renewable energy into green hydrogen by water electrolysis can be improved by recycling its waste heat, which can be called power to hydrogen and heat (P2HH). In this paper, P2HH has been applied with a large-scale alkaline electrolyser, so that it works as a prosumer consuming electricity, and producing hydrogen and heat simultaneously. The mathematical model of the wind and hydrogen hybrid system with P2HH technology has been built and the economic performance of the hybrid system connected to the power grid has been investigated by applying an economic model predictive control (EMPC) strategy for its optimal dispatch. By using real-life historical data from the Bornholm energy island in Denmark, the simulation results show that the EMPC controller is capable of robustness to achieve optimal electricity consumption, energy cost savings, and the best economic benefits in terms of various system configurations, weights for hydrogen price, constraints on its recycled heat and working temperature. Among these configurations, without constraints on the recycled heat and weights for hydrogen price, the electrolyser working in the 60–90 °C can achieve the most profits in the study case.
{"title":"Model Predictive Control based Optimal Dispatch of Wind and Hydrogen Hybrid Systems","authors":"Weiwei Wang, Chunjun Huang, Y. Zong","doi":"10.1109/ATEEE54283.2021.00023","DOIUrl":"https://doi.org/10.1109/ATEEE54283.2021.00023","url":null,"abstract":"To realize decarbonization, green hydrogen has been boosted in Denmark with the support of power to hydrogen (P2H) technology by taking advantage of enormous wind energy. The work efficiency of P2H technology, converting electricity from renewable energy into green hydrogen by water electrolysis can be improved by recycling its waste heat, which can be called power to hydrogen and heat (P2HH). In this paper, P2HH has been applied with a large-scale alkaline electrolyser, so that it works as a prosumer consuming electricity, and producing hydrogen and heat simultaneously. The mathematical model of the wind and hydrogen hybrid system with P2HH technology has been built and the economic performance of the hybrid system connected to the power grid has been investigated by applying an economic model predictive control (EMPC) strategy for its optimal dispatch. By using real-life historical data from the Bornholm energy island in Denmark, the simulation results show that the EMPC controller is capable of robustness to achieve optimal electricity consumption, energy cost savings, and the best economic benefits in terms of various system configurations, weights for hydrogen price, constraints on its recycled heat and working temperature. Among these configurations, without constraints on the recycled heat and weights for hydrogen price, the electrolyser working in the 60–90 °C can achieve the most profits in the study case.","PeriodicalId":62545,"journal":{"name":"电工电能新技术","volume":"19 1","pages":"74-80"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87217545","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 : 2021-12-01DOI: 10.1109/ATEEE54283.2021.00015
Qilin Li, Jun Wang, Ziyuan Feng, Zhang Sun
For servo turntable system, there exists non-linear factors to affect the control performance of the system, such as friction torque, dead zone of components, fluctuation of motor torque and other non-linear factors and uncertain factors. In this paper, servo turntable system using DC torque motor is designed to improve the tracking accuracy, speed and anti-interference ability of servo turntable. Firstly, a sliding mode control algorithm is proposed based on a new approaching law, combining the traditional power approaching law and exponential approaching law. Secondly, based on the sliding mode control algorithm, a robust control strategy is proposed. Finally, the stability of the designed controller is proved by Lyapunov theory, and the performance of the proposed control strategy is verified by simulation.
{"title":"Sliding Model Control of Servo Turntable Based on New Approaching Law","authors":"Qilin Li, Jun Wang, Ziyuan Feng, Zhang Sun","doi":"10.1109/ATEEE54283.2021.00015","DOIUrl":"https://doi.org/10.1109/ATEEE54283.2021.00015","url":null,"abstract":"For servo turntable system, there exists non-linear factors to affect the control performance of the system, such as friction torque, dead zone of components, fluctuation of motor torque and other non-linear factors and uncertain factors. In this paper, servo turntable system using DC torque motor is designed to improve the tracking accuracy, speed and anti-interference ability of servo turntable. Firstly, a sliding mode control algorithm is proposed based on a new approaching law, combining the traditional power approaching law and exponential approaching law. Secondly, based on the sliding mode control algorithm, a robust control strategy is proposed. Finally, the stability of the designed controller is proved by Lyapunov theory, and the performance of the proposed control strategy is verified by simulation.","PeriodicalId":62545,"journal":{"name":"电工电能新技术","volume":"1 1","pages":"31-35"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89569014","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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