This paper proposes a typical scenes generation method based on Latin Hypercube Sampling (LHS) and spectral clustering (SC). The proposed method can realize efficient typical scenes generation considering the stochastic fluctuation in renewable energy output and load demand. Then, the extreme scenes contained in these typical scenes are further analyzed, and the probability of the extreme scenes included in the typical scenes is defined as the membership degree of typical scenes in this paper. The results show that the membership degree of typical scenes is inversely proportional to the security margin of their branch power exceeding the limit, which is conducive to improving the security margin of the branch power for typical scenes by the reasonable allocation of reserve capacity, so that effective reserve dispatch of the system is guaranteed. Finally, the effectiveness of the proposed method is verified by experiments on the modified IEEE-14 bus system.
{"title":"Latin Hypercube Sampling and Spectral Clustering Based Typical Scenes Generation and Analysis for Effective Reserve Dispatch","authors":"Haiyu Huang, Dan Xu, Qian Cheng, Chen Yang, Xingyu Lin, Junjie Tang","doi":"10.1109/ICPET55165.2022.9918267","DOIUrl":"https://doi.org/10.1109/ICPET55165.2022.9918267","url":null,"abstract":"This paper proposes a typical scenes generation method based on Latin Hypercube Sampling (LHS) and spectral clustering (SC). The proposed method can realize efficient typical scenes generation considering the stochastic fluctuation in renewable energy output and load demand. Then, the extreme scenes contained in these typical scenes are further analyzed, and the probability of the extreme scenes included in the typical scenes is defined as the membership degree of typical scenes in this paper. The results show that the membership degree of typical scenes is inversely proportional to the security margin of their branch power exceeding the limit, which is conducive to improving the security margin of the branch power for typical scenes by the reasonable allocation of reserve capacity, so that effective reserve dispatch of the system is guaranteed. Finally, the effectiveness of the proposed method is verified by experiments on the modified IEEE-14 bus system.","PeriodicalId":355634,"journal":{"name":"2022 4th International Conference on Power and Energy Technology (ICPET)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131104909","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 : 2022-07-28DOI: 10.1109/ICPET55165.2022.9918248
Z. Zhao, Xiao-ling Su, Chaofan Zhao, Shichang Zhao, Jun Yang, Hui Chen
As power system see large-scale renewable energy sources (RESs) integration continuously, the high penetration level of RESs makes voltage support capacity of power system decreased dramatically which makes voltage regulation an even greater challenge, especially at the point of coupling (PCC) with RESs. The reasonable answer is RESs provide active support capacity to power system. Voltage control at PCC requires a large amount of reactive power during fluctuation. This paper proposes an active voltage regulation control for multi-VSI in large-scale renewable energy integrated power system to regulate PCC voltage actively. The main control objective is regulating voltage deviation at PCC to avoid the overloading or protection action of devices. The control strategy ensures paralleled inverters share reactive power and realize autonomous operation of multi-machine parallel system. In addition, it provides plug-and-play operation options for RESs, and any RESs’ switching action will not affect the other units. Simulation results prove the correctness and feasibility of the control strategy.
{"title":"Active Voltage Regulation Control for Multi-VSI in Large-scale Renewable Energy Integrated Power System","authors":"Z. Zhao, Xiao-ling Su, Chaofan Zhao, Shichang Zhao, Jun Yang, Hui Chen","doi":"10.1109/ICPET55165.2022.9918248","DOIUrl":"https://doi.org/10.1109/ICPET55165.2022.9918248","url":null,"abstract":"As power system see large-scale renewable energy sources (RESs) integration continuously, the high penetration level of RESs makes voltage support capacity of power system decreased dramatically which makes voltage regulation an even greater challenge, especially at the point of coupling (PCC) with RESs. The reasonable answer is RESs provide active support capacity to power system. Voltage control at PCC requires a large amount of reactive power during fluctuation. This paper proposes an active voltage regulation control for multi-VSI in large-scale renewable energy integrated power system to regulate PCC voltage actively. The main control objective is regulating voltage deviation at PCC to avoid the overloading or protection action of devices. The control strategy ensures paralleled inverters share reactive power and realize autonomous operation of multi-machine parallel system. In addition, it provides plug-and-play operation options for RESs, and any RESs’ switching action will not affect the other units. Simulation results prove the correctness and feasibility of the control strategy.","PeriodicalId":355634,"journal":{"name":"2022 4th International Conference on Power and Energy Technology (ICPET)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132244981","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 : 2022-07-28DOI: 10.1109/ICPET55165.2022.9918244
Guoxin Li, Jie Li, Linyun Li, Sizheng Yu, Nan Wang, Shiyao Pan, Hao Ding, Ziqing Su
The influence of traditional distributed photovoltaic grid-connected on the voltage is based on the three-phase balance state of the system, but with the development of society, more and more unbalanced loads are connected to the power grid, which makes the system in three-phase unbalanced state for a long time. Based on this, this paper considers the long-term unbalance of the system caused by the asymmetric load, and the system voltage changes in this state. Then, the change of negative sequence voltage is analyzed by the symmetrical component method, and the system is analyzed by the unbalanced power flow method in the ETAP software. The influence of distributed photovoltaic grid connection on bus node voltage under single-phase load access is studied by this paper. The results show that when the distributed photovoltaic is connected to the unbalanced system, the voltage value of each bus node of the system can be effectively improved, but the degree of influence on the system imbalance needs to be draw corresponding conclusions according to the difference of photovoltaic disconnection and load capacity.
{"title":"Research on the Influence of Distributed Photovoltaics on Distribution Network Voltage in Three-phase Unbalanced State","authors":"Guoxin Li, Jie Li, Linyun Li, Sizheng Yu, Nan Wang, Shiyao Pan, Hao Ding, Ziqing Su","doi":"10.1109/ICPET55165.2022.9918244","DOIUrl":"https://doi.org/10.1109/ICPET55165.2022.9918244","url":null,"abstract":"The influence of traditional distributed photovoltaic grid-connected on the voltage is based on the three-phase balance state of the system, but with the development of society, more and more unbalanced loads are connected to the power grid, which makes the system in three-phase unbalanced state for a long time. Based on this, this paper considers the long-term unbalance of the system caused by the asymmetric load, and the system voltage changes in this state. Then, the change of negative sequence voltage is analyzed by the symmetrical component method, and the system is analyzed by the unbalanced power flow method in the ETAP software. The influence of distributed photovoltaic grid connection on bus node voltage under single-phase load access is studied by this paper. The results show that when the distributed photovoltaic is connected to the unbalanced system, the voltage value of each bus node of the system can be effectively improved, but the degree of influence on the system imbalance needs to be draw corresponding conclusions according to the difference of photovoltaic disconnection and load capacity.","PeriodicalId":355634,"journal":{"name":"2022 4th International Conference on Power and Energy Technology (ICPET)","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132390726","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 : 2022-07-28DOI: 10.1109/ICPET55165.2022.9918444
Chenghao Sun, Qiuye Sun, Rui Wang
Although VDS sensing-based synchronous rectification (SR) schemes have been widely studied, the parasitic inductance of synchronous rectifier is still the main problem affecting the performance of these schemes. To deal with this problem, this paper proposes an improved VDS sensing-based SR scheme for LLC resonant converter. In this scheme, the VDS signal of the synchronous rectifier is sensed to determine the turn-on time of the SR control signal. Different from the conventional VDS sensing-based schemes, the tuning of the turnoff time of SR control signal is decoupled from the VDS signal. The turn-off time is obtained entirely through a perturb & observe (P&O) algorithm. It can eliminates the negative effects of parasitic inductance. Based on this algorithm, the proposed scheme can achieve accurate tuning of the turn-off time with any primary-side modulation strategy. With these effects, the proposed SR scheme can be compatible with arbitrary primary-side modulation strategies of LLC converter, which is convenient for application in different scenarios. Experimental results show the effectiveness of proposed SR scheme in a wide frequency range and light-to-full load conditions.
{"title":"An Improved VDS Sensing-based Synchronous Rectification Scheme for LLC Resonant Converter Using Perturb & Observe Algorithm","authors":"Chenghao Sun, Qiuye Sun, Rui Wang","doi":"10.1109/ICPET55165.2022.9918444","DOIUrl":"https://doi.org/10.1109/ICPET55165.2022.9918444","url":null,"abstract":"Although VDS sensing-based synchronous rectification (SR) schemes have been widely studied, the parasitic inductance of synchronous rectifier is still the main problem affecting the performance of these schemes. To deal with this problem, this paper proposes an improved VDS sensing-based SR scheme for LLC resonant converter. In this scheme, the VDS signal of the synchronous rectifier is sensed to determine the turn-on time of the SR control signal. Different from the conventional VDS sensing-based schemes, the tuning of the turnoff time of SR control signal is decoupled from the VDS signal. The turn-off time is obtained entirely through a perturb & observe (P&O) algorithm. It can eliminates the negative effects of parasitic inductance. Based on this algorithm, the proposed scheme can achieve accurate tuning of the turn-off time with any primary-side modulation strategy. With these effects, the proposed SR scheme can be compatible with arbitrary primary-side modulation strategies of LLC converter, which is convenient for application in different scenarios. Experimental results show the effectiveness of proposed SR scheme in a wide frequency range and light-to-full load conditions.","PeriodicalId":355634,"journal":{"name":"2022 4th International Conference on Power and Energy Technology (ICPET)","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132525618","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 : 2022-07-28DOI: 10.1109/ICPET55165.2022.9918288
Chao Yang, Dong Zhang, Xiaoning Ye
In the context of achieving "carbon peaking and carbon neutrality" goals, large-scale wind energy development has become an important way and measure to tackle climate change in major countries around the world. Centralized wind power is usually used in areas with concentrated load resources because of its scale effect and low cost. However, it requires connecting the generated electricity to the grid and transporting it over long distances to load center areas for consumption and utilization. Distributed wind power can be configured in load centers, which provides flexible arrangement and local consumption. In this paper, the development situation of distributed wind power in China for 2020 is analyzed, based on which the Levelized Cost of Energy (LCOE) of distributed wind power in the future is calculated, and the cost changes of this kind power in China both over the past decade and in the future are analyzed from three aspects: Initial investment cost, utilization hours and operation and maintenance rates, consequently the key directions of development are identified to provide reference for the future development of distributed wind power in China.
{"title":"Analysis of the Development of Distributed Wind Power in China","authors":"Chao Yang, Dong Zhang, Xiaoning Ye","doi":"10.1109/ICPET55165.2022.9918288","DOIUrl":"https://doi.org/10.1109/ICPET55165.2022.9918288","url":null,"abstract":"In the context of achieving \"carbon peaking and carbon neutrality\" goals, large-scale wind energy development has become an important way and measure to tackle climate change in major countries around the world. Centralized wind power is usually used in areas with concentrated load resources because of its scale effect and low cost. However, it requires connecting the generated electricity to the grid and transporting it over long distances to load center areas for consumption and utilization. Distributed wind power can be configured in load centers, which provides flexible arrangement and local consumption. In this paper, the development situation of distributed wind power in China for 2020 is analyzed, based on which the Levelized Cost of Energy (LCOE) of distributed wind power in the future is calculated, and the cost changes of this kind power in China both over the past decade and in the future are analyzed from three aspects: Initial investment cost, utilization hours and operation and maintenance rates, consequently the key directions of development are identified to provide reference for the future development of distributed wind power in China.","PeriodicalId":355634,"journal":{"name":"2022 4th International Conference on Power and Energy Technology (ICPET)","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114217530","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}
In order to reduce the idle resources of distributed energy storage equipment, standardize the transaction price of equipment to improve the enthusiasm of users. This paper proposes a distributed energy storage peer-to-peer online sharing transaction mode considering price accounting. Firstly, the basic concepts of Ethereum and smart contract are briefly introduced, and the distributed energy storage contract model with price information is established, and the administrator smart contract model with price accounting is established. Then, an online sharing transaction mode considering transaction price accounting is proposed which ensures the privacy and safety of transaction users and realize price accounting during remote control of energy storage. The research results prove the feasibility of the proposed trading model and the superiority of standardizing market transaction pricing.
{"title":"Peer-to-Peer Online Sharing Transaction Mode for Distributed Energy Storage Considering Price Accounting","authors":"Zhixiang Sun, Donghui Chen, Yanhu Ma, Guodong Zheng, Yansheng Lang, Yanbo Chen","doi":"10.1109/ICPET55165.2022.9918421","DOIUrl":"https://doi.org/10.1109/ICPET55165.2022.9918421","url":null,"abstract":"In order to reduce the idle resources of distributed energy storage equipment, standardize the transaction price of equipment to improve the enthusiasm of users. This paper proposes a distributed energy storage peer-to-peer online sharing transaction mode considering price accounting. Firstly, the basic concepts of Ethereum and smart contract are briefly introduced, and the distributed energy storage contract model with price information is established, and the administrator smart contract model with price accounting is established. Then, an online sharing transaction mode considering transaction price accounting is proposed which ensures the privacy and safety of transaction users and realize price accounting during remote control of energy storage. The research results prove the feasibility of the proposed trading model and the superiority of standardizing market transaction pricing.","PeriodicalId":355634,"journal":{"name":"2022 4th International Conference on Power and Energy Technology (ICPET)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116727865","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}
In order to overcome the defects of centralized management and transaction methods while protecting user privacy and information security at the same time, blockchain technology, which is believed to have great impact on the in-depth study of the future virtual power plant resilience development and sharing concepts, is introduced into virtual power plants. Introducing blockchain in distributed energy transactions combined with demand response can further reduce costs and transaction times. However, the application of blockchain technology cannot take into account decentralization, scalability, and security at the same time in large-scale virtual power plant transactions. It will also be subject to physical limitations. In response to the above problems, optimization and research plans are proposed. Among these solutions, the direction of artificial intelligence has attracted much attention, and it is foreseeable that the future research direction of blockchain technology in the field of virtual power plants will be more closely combined with artificial intelligence technology.
{"title":"A Review of the Application of Blockchain Technology in Virtual Power Plant","authors":"Baorong Zhou, Wenmeng Zhao, Jiangnan Li, Tao Wang, Tian Mao, Yanting Huang","doi":"10.1109/ICPET55165.2022.9918422","DOIUrl":"https://doi.org/10.1109/ICPET55165.2022.9918422","url":null,"abstract":"In order to overcome the defects of centralized management and transaction methods while protecting user privacy and information security at the same time, blockchain technology, which is believed to have great impact on the in-depth study of the future virtual power plant resilience development and sharing concepts, is introduced into virtual power plants. Introducing blockchain in distributed energy transactions combined with demand response can further reduce costs and transaction times. However, the application of blockchain technology cannot take into account decentralization, scalability, and security at the same time in large-scale virtual power plant transactions. It will also be subject to physical limitations. In response to the above problems, optimization and research plans are proposed. Among these solutions, the direction of artificial intelligence has attracted much attention, and it is foreseeable that the future research direction of blockchain technology in the field of virtual power plants will be more closely combined with artificial intelligence technology.","PeriodicalId":355634,"journal":{"name":"2022 4th International Conference on Power and Energy Technology (ICPET)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132133297","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 : 2022-07-28DOI: 10.1109/ICPET55165.2022.9918400
Yongxin Wang, Shan Wang, Xin Peng, Yang Zhao, Jiali Cui, D. Gao
Photovoltaic fault diagnosis plays an important role in photovoltaic operation and maintenance. Traditional fault diagnosis methods have low accuracy and slow recognition speed and are greatly affected by external factors. In this paper, the residual network is used to diagnose faults in the open dataset of electroluminescence. Build based on Pytorch framework. Firstly, the data set is preprocessed to avoid the unnecessary influence of external factors on the experiment. By comparing the influence of different depths of the network on performance, ResNet34 with the best performance is selected. The number of data sets is too small to train the network, so the ResNet34 model pre-trained on ImageNet is used for classification. The effects of different Dropout probability and different gradient descent algorithms on the performance of the test set are analyzed. The experimental results show that the final accuracy is 94.25%, which can effectively diagnose photovoltaic faults.
{"title":"Photovoltaic Fault Diagnosis Based on Residual Network","authors":"Yongxin Wang, Shan Wang, Xin Peng, Yang Zhao, Jiali Cui, D. Gao","doi":"10.1109/ICPET55165.2022.9918400","DOIUrl":"https://doi.org/10.1109/ICPET55165.2022.9918400","url":null,"abstract":"Photovoltaic fault diagnosis plays an important role in photovoltaic operation and maintenance. Traditional fault diagnosis methods have low accuracy and slow recognition speed and are greatly affected by external factors. In this paper, the residual network is used to diagnose faults in the open dataset of electroluminescence. Build based on Pytorch framework. Firstly, the data set is preprocessed to avoid the unnecessary influence of external factors on the experiment. By comparing the influence of different depths of the network on performance, ResNet34 with the best performance is selected. The number of data sets is too small to train the network, so the ResNet34 model pre-trained on ImageNet is used for classification. The effects of different Dropout probability and different gradient descent algorithms on the performance of the test set are analyzed. The experimental results show that the final accuracy is 94.25%, which can effectively diagnose photovoltaic faults.","PeriodicalId":355634,"journal":{"name":"2022 4th International Conference on Power and Energy Technology (ICPET)","volume":"158 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132731638","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}
In order to deal with the problem of efficiency decreasing caused by the lateral offset of the wireless power transfer coil, a double-layer overlapping coil structure is proposed, which can realize multi-load charging and has strong anti-offset performance. First, the circuit model of the double-layer overlap coil system is established to analyze the factors that affect the efficiency of the system; secondly, the double-layer overlap coil model is established by COMSOL simulation to study the relationship between the efficiency of multiple charging areas and the lateral offset. Finally, in order to verify the authenticity of the theory and simulation, the experiment device is implemented and experimented results show that the change in the magnetic flux of the receiving coil will affect the coil efficiency. When lateral misalignment occurs, the proposed double-layer overlap coil structure can maintain high and stable magnetic field strength enables the system to effectively maintain high-efficiency energy transmission.
{"title":"Research on Anti-offset Characteristics of Double-Layer Overlapping Coil Used in Inductive Wireless Power Transfer system","authors":"Jing Xiao, Shaonan Chen, Chunmiao Ma, Yufang Chang, Wencong Huang","doi":"10.1109/ICPET55165.2022.9918394","DOIUrl":"https://doi.org/10.1109/ICPET55165.2022.9918394","url":null,"abstract":"In order to deal with the problem of efficiency decreasing caused by the lateral offset of the wireless power transfer coil, a double-layer overlapping coil structure is proposed, which can realize multi-load charging and has strong anti-offset performance. First, the circuit model of the double-layer overlap coil system is established to analyze the factors that affect the efficiency of the system; secondly, the double-layer overlap coil model is established by COMSOL simulation to study the relationship between the efficiency of multiple charging areas and the lateral offset. Finally, in order to verify the authenticity of the theory and simulation, the experiment device is implemented and experimented results show that the change in the magnetic flux of the receiving coil will affect the coil efficiency. When lateral misalignment occurs, the proposed double-layer overlap coil structure can maintain high and stable magnetic field strength enables the system to effectively maintain high-efficiency energy transmission.","PeriodicalId":355634,"journal":{"name":"2022 4th International Conference on Power and Energy Technology (ICPET)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133062189","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 : 2022-07-28DOI: 10.1109/ICPET55165.2022.9918449
Pei Ligeng, Bai Hewen, Zhang Zhiren, Zhang Xin, Wang Kai, Li Xuenong
In order to solve the problem that the traditional deterministic power system scheduling model is difficult to take into account the economy and the backup required for large-scale renewable energy, this paper adopts a robust optimization method that takes into account both economy and safety model. In addition to the conventional constraints of thermal units, the model not only considers the power and energy constraints of the energy storage equipment, but also considers the transmission capacity constraints of the line. The discrete normal distribution is applied to describe the random characteristics of wind power. In the model solving process, the max-min model is transformed into a max-max model by Lagrange dual theory. Through numerical example analysis, the rationality of the robust optimization method is verified. It is concluded that the greater the degree of wind power fluctuation, the greater the total system cost. Meanwhile, an appropriate amount of initial storage energy can effectively reduce the system cost.
{"title":"Robust Operation Method for Power System with Energy Storage Considering Power and Energy State","authors":"Pei Ligeng, Bai Hewen, Zhang Zhiren, Zhang Xin, Wang Kai, Li Xuenong","doi":"10.1109/ICPET55165.2022.9918449","DOIUrl":"https://doi.org/10.1109/ICPET55165.2022.9918449","url":null,"abstract":"In order to solve the problem that the traditional deterministic power system scheduling model is difficult to take into account the economy and the backup required for large-scale renewable energy, this paper adopts a robust optimization method that takes into account both economy and safety model. In addition to the conventional constraints of thermal units, the model not only considers the power and energy constraints of the energy storage equipment, but also considers the transmission capacity constraints of the line. The discrete normal distribution is applied to describe the random characteristics of wind power. In the model solving process, the max-min model is transformed into a max-max model by Lagrange dual theory. Through numerical example analysis, the rationality of the robust optimization method is verified. It is concluded that the greater the degree of wind power fluctuation, the greater the total system cost. Meanwhile, an appropriate amount of initial storage energy can effectively reduce the system cost.","PeriodicalId":355634,"journal":{"name":"2022 4th International Conference on Power and Energy Technology (ICPET)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126039013","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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