Hong Xu, Xuming Wang, Liqiu Huang, Jiahao Qian, Jianyong Lou
{"title":"Research on Two-Stage Three-Phase Photovoltaic Grid-Connected System with MPPT","authors":"Hong Xu, Xuming Wang, Liqiu Huang, Jiahao Qian, Jianyong Lou","doi":"10.1109/ICPRE48497.2019.9034825","DOIUrl":"https://doi.org/10.1109/ICPRE48497.2019.9034825","url":null,"abstract":"This paper is about three-phase photovoltaic gridconnected system with MPPT, including pre-stage DC-DC and post-stage DC-AC. The pre-stage circuit selects the Boost circuit to achieve maximum power point tracking(MPPT). In order to better track the maximum power point of the PV array, a new MPPT technology is proposed, that is, the conductivity increase method + PI adjustment. The latter stage DC-AC adopts a three-phase full-bridge inverter circuit. The control method is to use a voltage-oriented vector control, converting the output currents ia, ib, and ic into id, iq through $abc/alpha beta/dq$ coordinate transformation. Then a 40kW photovoltaic grid-connected model was built in MATLAB. The results show that the method can accurately achieve the MPPT, and the grid-connected inverter can realize the function of stable DC voltage and unit power factor grid-connected.","PeriodicalId":387293,"journal":{"name":"2019 4th International Conference on Power and Renewable Energy (ICPRE)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132131979","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}
Yan Xiaoqing, Yangjie, Li Zhuonan, Li Yachun, Huang Xinting
{"title":"Green Power Market Space Prediction and Evaluation Model Based on Interconnected Power Grid Interconnection","authors":"Yan Xiaoqing, Yangjie, Li Zhuonan, Li Yachun, Huang Xinting","doi":"10.1109/ICPRE48497.2019.9034770","DOIUrl":"https://doi.org/10.1109/ICPRE48497.2019.9034770","url":null,"abstract":"The interconnection of power grid plays as the key role in the B&R strategy, which has great significance in achieving optimal allocation of energy resources. Aiming at the characteristics of the power interconnection “dominated by the transmission of clean energy”, this paper proposes a forecasting and assessing model for the green power market space. Firstly, the traditional electricity market space is expanded, and a concept of “green power market space” is proposed, which is suitable for the B&R power interconnection power flow planning. Then, an assessing model of optimal renewable energy uptake scale of regional grid is established from the physical and mathematical levels. To fully reflect the complexity and difficulty of power interconnection system, a new combination weighting approach consists both of fuzzy-logarithmic and anti-entropy methods is adopted, meanwhile fuzzy membership concept is introduced into overall evaluation for B&R regional grid power structure.","PeriodicalId":387293,"journal":{"name":"2019 4th International Conference on Power and Renewable Energy (ICPRE)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129841597","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}
{"title":"ICPRE 2019 Preface","authors":"","doi":"10.1109/icpre48497.2019.9034813","DOIUrl":"https://doi.org/10.1109/icpre48497.2019.9034813","url":null,"abstract":"","PeriodicalId":387293,"journal":{"name":"2019 4th International Conference on Power and Renewable Energy (ICPRE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130130793","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}
Dou Fei, Wang Weiyuan, Cheng Jinmin, Cai Hui, Q. Wanchun, Chen Ke, Fu Junbo
{"title":"Research on the Configuration Strategy for Reactive Power Compensations in Offshore Wind Farm Clusters","authors":"Dou Fei, Wang Weiyuan, Cheng Jinmin, Cai Hui, Q. Wanchun, Chen Ke, Fu Junbo","doi":"10.1109/ICPRE48497.2019.9034811","DOIUrl":"https://doi.org/10.1109/ICPRE48497.2019.9034811","url":null,"abstract":"With the large-scale development and utilization of offshore wind power, capacities of every single wind turbine and wind farm are increasing dramatically. Moreover, several wind farms are often constructed along the same wind belt with different gradients, and integrated into the power grid centralized, which the offshore wind farm cluster with capacities of millions or even tens of millions kilowatts is formed. While the wind farm cluster has characteristics of large capacity and certain output spatial coupling with each wind farm, its reactive power fluctuation will sharply deteriorate the bus voltage in some specific regions. Existing reactive power configuration strategy, which takes every single wind farm as its objective and adjusts the reactive power configuration independently, cannot satisfy the requirements for voltage regulation in regional power grids. In this paper with fully considering of the evaluation indices including safety, economy and power quality, reactive power configuration strategy is wholly planned in the real wind farm cluster. With the proposed configuration strategy for reactive power compensations, wind farm cluster is responsible to coordinate reactive power compensations, and plays the role of voltage support in regional power grids. In the real case, overall bus voltage in regional power grids can be improved, and proposed configuration strategy for reactive power compensations is verified.","PeriodicalId":387293,"journal":{"name":"2019 4th International Conference on Power and Renewable Energy (ICPRE)","volume":"133 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116275282","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}
{"title":"Day-Ahead Dispatch Model Considering Multi-Type Loads","authors":"Yifan Ding, Molin Huo, Yahui Ma, A. Zheng","doi":"10.1109/ICPRE48497.2019.9034778","DOIUrl":"https://doi.org/10.1109/ICPRE48497.2019.9034778","url":null,"abstract":"In the smart grid, the adjustable loads have played an important role in peak shaving. According to demand side management in China, models of the shiftable, transferable and interruptible loads are constructed respectively in this paper. Considering the feasibility of the practical dispatch, the graded scheduling strategy is put forward. Aiming at peak shaving, the adjustable loads are utilized to participate in the optimal economic dispatch with the conventional units. Then a lean day-ahead scheduling model based on multi types of interactive loads is established. This model guides these loads with incentives to realize the optimal configuration of demand side resource. Simulation results indicate that under the circumstance of the limited regulation capacity of conventional units, the more actively the clients join in the interaction, the lower the total cost is and the better the interactive effectiveness is.","PeriodicalId":387293,"journal":{"name":"2019 4th International Conference on Power and Renewable Energy (ICPRE)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116422781","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}
Chuangxin Guo, Dongyu Liu, W. Geng, Chengzhi Zhu, Xueping Wang, Xiu Cao
{"title":"Modeling and Analysis of Electric Vehicle Charging Load in Residential Area","authors":"Chuangxin Guo, Dongyu Liu, W. Geng, Chengzhi Zhu, Xueping Wang, Xiu Cao","doi":"10.1109/ICPRE48497.2019.9034848","DOIUrl":"https://doi.org/10.1109/ICPRE48497.2019.9034848","url":null,"abstract":"In this paper, a new method for modeling and analyzing the charging load of urban electric vehicles in the residential area is proposed, based on the factors including parking and charging characteristics of electric vehicles. Firstly, according to the parking behavior of electric vehicles, the paper establishes the parking model. Subsequently, by analyzing the mileage distribution as well as the relationship between mileage and power consumption, the state-of-charge (SOC) model is established. Then, combining those models and other regional characteristics, the paper proposes the specific charging model of electric vehicles in the residential area, which is utilized to forecast the charging load of electric vehicles in residential areas. In the charging model, optimization of power consumption simulation, return time distribution, and power distribution when return are included. Finally, taking Shanghai as an example, the paper applies the comprehensive charging model to draw rich conclusions, which can be helpful for dispatching and other work of the urban grid system in the future.","PeriodicalId":387293,"journal":{"name":"2019 4th International Conference on Power and Renewable Energy (ICPRE)","volume":"258 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122174101","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}
{"title":"Carbon Emissions Are not just Bad","authors":"Keqin Chen, Kun Zhu, Yixin Meng, Meng Meng","doi":"10.1109/ICPRE48497.2019.9034807","DOIUrl":"https://doi.org/10.1109/ICPRE48497.2019.9034807","url":null,"abstract":"Extreme weather, natural disasters are increasing, the earth's carrying capacity is limited, and humans continue to survive in the environment of carbon emissions. With the progress of the society, the issue of sustainable development has gradually attracted people's attention. Carbon emissions and renewable energy are important issues for sustainable development and an integral part of sustainable development. This paper uses data from the International Energy Organization and the World Bank to find that developing countries are the mainstay of carbon emissions, and more importantly, carbon emissions have not only negative impacts on the environment or climate change. Maintaining a dynamic balance of carbon emissions will also contribute to the development of the economy and renewable energy.","PeriodicalId":387293,"journal":{"name":"2019 4th International Conference on Power and Renewable Energy (ICPRE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128821053","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}
Zhuonan Li, Xiaoqing Yan, Jun Liu, Jie Yang, Nan Li, Jiujin Zhao
{"title":"Model of Regional Renewable Energy Acceptance Capacity Based on Artificial Bee Colony Algorithm","authors":"Zhuonan Li, Xiaoqing Yan, Jun Liu, Jie Yang, Nan Li, Jiujin Zhao","doi":"10.1109/ICPRE48497.2019.9034689","DOIUrl":"https://doi.org/10.1109/ICPRE48497.2019.9034689","url":null,"abstract":"In recent years, the development of global economy is facing the dual constraints of resources and the environment. It has become a global consensus to reduce the amount of fossil fuel power consumption and promote the development of renewable energy. At the same time, renewable energy is rapidly developing, which is gradually meeting more and more energy needs. Electricity is one of the most important ways to make largescale use of renewable energy. However, because of the intermittent and volatility of renewable energy, regardless of the high proportion of wind power or solar power generation, it will be sure to cause an impact on the operation of the power system. In this paper, a global renewable energy acceptance capacity prediction model has been proposed. And the empirically studies were analyzed to provide a basis for global energy conservation and emission reduction. In this paper, the development of power in typical regions of the world was summarized, and artificial bee colony algorithm integrated with production simulation was introduced to build a renewable energy acceptance capacity model based on the principle of maximizing the acceptance of renewable energy while maintaining stable operation of the grid. The ability to accept regional renewable energy generation in 2030 was also assessed.","PeriodicalId":387293,"journal":{"name":"2019 4th International Conference on Power and Renewable Energy (ICPRE)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117227715","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}
Southisa Sybounya, R. Nitisoravut, Pornthip Wimonsong
{"title":"Addition of Activated Carbon as Supported Material for Hydrotalcite to Promote Fermentative Hydrogen Production","authors":"Southisa Sybounya, R. Nitisoravut, Pornthip Wimonsong","doi":"10.1109/ICPRE48497.2019.9034774","DOIUrl":"https://doi.org/10.1109/ICPRE48497.2019.9034774","url":null,"abstract":"Commercial activated carbon (CAC) supported hydrotalcite (Fe-Ni-HT/CAC) and CAC were applied to improve biohydrogen production in dark fermentation process using sucrose as a carbon source under mesophilic condition at 37°C. This resulted in an increase of biohydrogen production of nearly 20% with the highest hydrogen yield of 2.71 mol H2/mol sucrose added. This was due to an alkaline nature of Fe-Ni-HT to stabilize pH during fermentation. Moreover, it also minimized volatile fatty acids (VFAs) especially butyric and lactic acids which could inhibit fermentation process. The characteristics of Fe-Ni-HT/CAC and CAC were examined for surface area, morphology, structure and functional groups to support the proper understanding of the roles of Fe-NiHT/CAC in fermentation.","PeriodicalId":387293,"journal":{"name":"2019 4th International Conference on Power and Renewable Energy (ICPRE)","volume":"109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122618046","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}
{"title":"A optimization Strategy to Balance sub-Module Capacity Voltage of MMC","authors":"Wang Ye, Wu Yi, Cui Yu, Zhao Jing-wu, L. Yuhua","doi":"10.1109/ICPRE48497.2019.9034854","DOIUrl":"https://doi.org/10.1109/ICPRE48497.2019.9034854","url":null,"abstract":"optimizing the sub-module control strategy of modular multi-level converter, especially considering the capacitor voltage fluctuation of sub-module, the second harmonic content of bridge arm circulation, the switching times of sub-module IGBT and the calculation amount of algorithm, a capacitor voltage control strategy of sub-module of modular multi-level converter is proposed. This paper expounds the contradiction between the voltage fluctuation of the sub-module capacitor, the switching times of the submodule IGBT and the computational complexity of the algorithm, then proves through theoretical analysis that there is also a non-linear relationship between the voltage fluctuation of the sub-module capacitor and the second harmonic content of the bridge arm circulating current. It is necessary to find an appropriate algorithm to achieve the optimal situation at the same time. Finally, the traditional control strategy, the control strategy proposed in other literature and the control strategy proposed in this paper are validated by dynamic model test. The experimental results show that the proposed strategy in this paper can be optimized in four aspects: voltage fluctuation of sub-module, second harmonic content in bridge arm circulation, switching times of sub-module IGBT and the computational complexity of the algorithm.","PeriodicalId":387293,"journal":{"name":"2019 4th International Conference on Power and Renewable Energy (ICPRE)","volume":"105 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120879860","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}