In view of the increasing demand for the short-term load forecasting accuracy of commercial buildings, in order to overcome the data shortage, so that the subsequent forecasting model can learn the characteristics of the original data set more fully, and extract the effective characteristics of the data better, this paper proposes a short-term load forecasting method based on the hybrid model of TimeGAN generative adversarial network and CNN-LSTM Network. Firstly, the TimeGAN network is used to generate synthetic data to expand the scarce data set. Then, the CNN network is used to filter the input data and extract useful information, and the LSTM network is used to analyze and forecast the time series data. The proposed method calculates the power load data of a company in Shanghai for two months. Compared with CNNLSTM model and LSTM model which do not use synthetic data, the obtained short-term power load forecasting results improve the forecasting accuracy.
{"title":"Generative Adversarial Network and CNN-LSTM Based Short-Term Power Load Forecasting","authors":"Yushan Liu, Zhouchi Liang, Xiao Li, Abualkasim Bakeer","doi":"10.1109/CPE-POWERENG58103.2023.10227473","DOIUrl":"https://doi.org/10.1109/CPE-POWERENG58103.2023.10227473","url":null,"abstract":"In view of the increasing demand for the short-term load forecasting accuracy of commercial buildings, in order to overcome the data shortage, so that the subsequent forecasting model can learn the characteristics of the original data set more fully, and extract the effective characteristics of the data better, this paper proposes a short-term load forecasting method based on the hybrid model of TimeGAN generative adversarial network and CNN-LSTM Network. Firstly, the TimeGAN network is used to generate synthetic data to expand the scarce data set. Then, the CNN network is used to filter the input data and extract useful information, and the LSTM network is used to analyze and forecast the time series data. The proposed method calculates the power load data of a company in Shanghai for two months. Compared with CNNLSTM model and LSTM model which do not use synthetic data, the obtained short-term power load forecasting results improve the forecasting accuracy.","PeriodicalId":315989,"journal":{"name":"2023 IEEE 17th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"150 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127514335","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 : 2023-06-14DOI: 10.1109/CPE-POWERENG58103.2023.10227409
Qiong Wang, L. Lopes
The 4-switch bi-directional (Buck+Boost) dc-dc converter is a good choice for interfacing DC buses where the voltage of one bus can be higher or lower than the other. It can operate with four different states determined by a pair of ON switches. The simplest and most common modulation schemes employ only two of them, in a dual-state logic. Tri-state operation can eliminate the right-half plane zero from the transfer function output-to-control variable in Boost-derived modes of operation. It can also reduce the inductor current ripple and rms value. A similar effect can be obtained by changing the order of the states used in a switching period as the power flow reverses. The issue of switching losses can be addressed with zero voltage switching (ZVS) but requires the inductor current to reverse in every switching cycle. Operation with ZVS frequently employs all four states. This paper describes a new carrier-less PWM modulator that allows the change of the mode of operation and sequence of states in a simple way. Its performance is verified by simulation of the 4-switch converter in a typical application: As the interface of a supercapacitor connected to a DC bus employing a tri-state scheme with possible reversal of the states of operation.
4开关双向(Buck+Boost) DC - DC转换器是连接直流母线的一个很好的选择，其中一个母线的电压可以高于或低于另一个。它可以在由一对ON开关决定的四种不同状态下工作。最简单和最常见的调制方案在双态逻辑中只使用其中的两个。三态操作可以消除boost导出操作模式中传递函数输出到控制变量的右半平面零。它还可以减小电感电流纹波和有效值。当潮流反转时，通过改变开关周期中使用的状态顺序可以获得类似的效果。开关损耗的问题可以通过零电压开关(ZVS)来解决，但需要电感电流在每个开关周期中反转。使用ZVS的操作通常使用所有四种状态。本文介绍了一种新的无载波PWM调制器，它可以简单地改变工作模式和状态顺序。通过对典型应用中的4开关变换器的仿真验证了其性能:作为超级电容器连接到直流总线的接口，采用三态方案，可以逆转运行状态。
{"title":"Multi-Mode PWM Modulator for a 4-Switch DC-DC Converter Operating with Tri-State","authors":"Qiong Wang, L. Lopes","doi":"10.1109/CPE-POWERENG58103.2023.10227409","DOIUrl":"https://doi.org/10.1109/CPE-POWERENG58103.2023.10227409","url":null,"abstract":"The 4-switch bi-directional (Buck+Boost) dc-dc converter is a good choice for interfacing DC buses where the voltage of one bus can be higher or lower than the other. It can operate with four different states determined by a pair of ON switches. The simplest and most common modulation schemes employ only two of them, in a dual-state logic. Tri-state operation can eliminate the right-half plane zero from the transfer function output-to-control variable in Boost-derived modes of operation. It can also reduce the inductor current ripple and rms value. A similar effect can be obtained by changing the order of the states used in a switching period as the power flow reverses. The issue of switching losses can be addressed with zero voltage switching (ZVS) but requires the inductor current to reverse in every switching cycle. Operation with ZVS frequently employs all four states. This paper describes a new carrier-less PWM modulator that allows the change of the mode of operation and sequence of states in a simple way. Its performance is verified by simulation of the 4-switch converter in a typical application: As the interface of a supercapacitor connected to a DC bus employing a tri-state scheme with possible reversal of the states of operation.","PeriodicalId":315989,"journal":{"name":"2023 IEEE 17th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126411217","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 : 2023-06-14DOI: 10.1109/CPE-POWERENG58103.2023.10227470
Sayed Mohammad Kameli, S. Refaat, A. Ghrayeb, H. Abu-Rub, J. Guzinski
Power transformers are among the most important assets in the power transmission and distribution grid. However, they suffer from degradation and possible faults causing major electrical and financial losses. Partial discharges (PDs) are used to identify the insulation health status and their degradation level. PDs are incipient, low-magnitude faults caused by localized dielectric breakdown. Those activities emit signals in many forms, including electrical, chemical, acoustic, electromagnetic, and optical, facilitating various detection methods. This paper provides a theoretical basis for the condition evaluation of an oil-filled power transformer and clarifies the relationship between the operating voltage, void location, and electric-field intensity within the void. This was achieved by investigating the propagation characteristics of partial discharge signals in an oil-filled power transformer using a 3D finite element method (FEM) based simulation. Moreover, the characterization of simulated PD sources at different positions is investigated in this paper. The simulation results are curried out to show that air voids near the windings are subject to greatest peak electric field intensity.
{"title":"Propagation Characteristics of Partial Discharges in an Oil-Filled Power Transformer","authors":"Sayed Mohammad Kameli, S. Refaat, A. Ghrayeb, H. Abu-Rub, J. Guzinski","doi":"10.1109/CPE-POWERENG58103.2023.10227470","DOIUrl":"https://doi.org/10.1109/CPE-POWERENG58103.2023.10227470","url":null,"abstract":"Power transformers are among the most important assets in the power transmission and distribution grid. However, they suffer from degradation and possible faults causing major electrical and financial losses. Partial discharges (PDs) are used to identify the insulation health status and their degradation level. PDs are incipient, low-magnitude faults caused by localized dielectric breakdown. Those activities emit signals in many forms, including electrical, chemical, acoustic, electromagnetic, and optical, facilitating various detection methods. This paper provides a theoretical basis for the condition evaluation of an oil-filled power transformer and clarifies the relationship between the operating voltage, void location, and electric-field intensity within the void. This was achieved by investigating the propagation characteristics of partial discharge signals in an oil-filled power transformer using a 3D finite element method (FEM) based simulation. Moreover, the characterization of simulated PD sources at different positions is investigated in this paper. The simulation results are curried out to show that air voids near the windings are subject to greatest peak electric field intensity.","PeriodicalId":315989,"journal":{"name":"2023 IEEE 17th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"323 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124574867","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 : 2023-06-14DOI: 10.1109/CPE-POWERENG58103.2023.10227392
V. Skiparev, K. Nosrati, J. Belikov, A. Tepljakov, E. Petlenkov
Developing accurate mathematical models for microgrid (MG) components is the initial step before implementing various load frequency control (LFC) strategies and analysis. In this regard, different high-order models associated with different nonlinearities have been included to increase the modeling accuracy resulted in a performance improvement in the LFC techniques. Nevertheless, these high-order nonlinear models pose some potential problems such as obstacles in the analytical description of the system and control problem along with its high computational complexity. In this light, the fractional order based models are deployed to effectively balance the model accuracy and analytical complexity. First, two fractional order components (energy storage system and fuel cell) are arranged in a controlled coordinated strategy to enhance the frequency stability. Then, two artificial neural network (ANN) controllers are deployed for each components in a multi-agent framework. To accomplish this step, a multi-agent stochastic reinforcement learning optimization is applied to train the two controllers. Test results on an isolated MG with fractional components validate the efficacy of the coordinated LFC strategy.
{"title":"An Enhanced NN-based Load Frequency Control Design of MGs: A Fractional order Modeling Method","authors":"V. Skiparev, K. Nosrati, J. Belikov, A. Tepljakov, E. Petlenkov","doi":"10.1109/CPE-POWERENG58103.2023.10227392","DOIUrl":"https://doi.org/10.1109/CPE-POWERENG58103.2023.10227392","url":null,"abstract":"Developing accurate mathematical models for microgrid (MG) components is the initial step before implementing various load frequency control (LFC) strategies and analysis. In this regard, different high-order models associated with different nonlinearities have been included to increase the modeling accuracy resulted in a performance improvement in the LFC techniques. Nevertheless, these high-order nonlinear models pose some potential problems such as obstacles in the analytical description of the system and control problem along with its high computational complexity. In this light, the fractional order based models are deployed to effectively balance the model accuracy and analytical complexity. First, two fractional order components (energy storage system and fuel cell) are arranged in a controlled coordinated strategy to enhance the frequency stability. Then, two artificial neural network (ANN) controllers are deployed for each components in a multi-agent framework. To accomplish this step, a multi-agent stochastic reinforcement learning optimization is applied to train the two controllers. Test results on an isolated MG with fractional components validate the efficacy of the coordinated LFC strategy.","PeriodicalId":315989,"journal":{"name":"2023 IEEE 17th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131186154","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 : 2023-06-14DOI: 10.1109/CPE-POWERENG58103.2023.10227408
Arqum Shahid, Roya Ahmadiahangar, A. Rosin, Vahur Maask, João Martins
This research article explores various methods for quantifying demand-side flexibility and focuses on one particular technique based on power consumption. The study performs exploratory data analysis on the AMPds dataset in the time domain, encompassing trend and correlation analysis and attributes distribution analysis to highlight the importance of considering different factors influencing household power consumption. The analysis results are used to aid in the feature selection and extraction process of machine learning model development for determining demand-side flexibility through power consumption. This article provides valuable insights for researchers and practitioners in the energy industry looking to better understand demand-side flexibility and estimate its quantification.
{"title":"Exploratory Data Analysis for Demand-side Flexibility Quantification","authors":"Arqum Shahid, Roya Ahmadiahangar, A. Rosin, Vahur Maask, João Martins","doi":"10.1109/CPE-POWERENG58103.2023.10227408","DOIUrl":"https://doi.org/10.1109/CPE-POWERENG58103.2023.10227408","url":null,"abstract":"This research article explores various methods for quantifying demand-side flexibility and focuses on one particular technique based on power consumption. The study performs exploratory data analysis on the AMPds dataset in the time domain, encompassing trend and correlation analysis and attributes distribution analysis to highlight the importance of considering different factors influencing household power consumption. The analysis results are used to aid in the feature selection and extraction process of machine learning model development for determining demand-side flexibility through power consumption. This article provides valuable insights for researchers and practitioners in the energy industry looking to better understand demand-side flexibility and estimate its quantification.","PeriodicalId":315989,"journal":{"name":"2023 IEEE 17th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131842004","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 : 2023-06-14DOI: 10.1109/CPE-POWERENG58103.2023.10227469
H. Agabus, T. Korõtko, Karl Kull, A. Rosin, I. Palu
The potential of closed distribution systems (CDSs) in Estonia is statistically undervalued and underutilised among power system stakeholders. This qualitative study aims to understand critical stakeholders in Estonia regarding the closed distribution system to understand the hindering factors of CDS uptake and the prognosis of the overall development of CDSs in Estonia. It is recognised that the Estonian industry sector is expected to set up the majority of Estonian CDSs, while some are formed by former small-scale distribution system operators looking to reduce their expenditure on current processes. This study provides insight into the possible progress of the rest of the Baltic Sea region countries or similar regions.
{"title":"Potential Assessment of Closed Distribution System Uptake in Estonia","authors":"H. Agabus, T. Korõtko, Karl Kull, A. Rosin, I. Palu","doi":"10.1109/CPE-POWERENG58103.2023.10227469","DOIUrl":"https://doi.org/10.1109/CPE-POWERENG58103.2023.10227469","url":null,"abstract":"The potential of closed distribution systems (CDSs) in Estonia is statistically undervalued and underutilised among power system stakeholders. This qualitative study aims to understand critical stakeholders in Estonia regarding the closed distribution system to understand the hindering factors of CDS uptake and the prognosis of the overall development of CDSs in Estonia. It is recognised that the Estonian industry sector is expected to set up the majority of Estonian CDSs, while some are formed by former small-scale distribution system operators looking to reduce their expenditure on current processes. This study provides insight into the possible progress of the rest of the Baltic Sea region countries or similar regions.","PeriodicalId":315989,"journal":{"name":"2023 IEEE 17th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130145998","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 : 2023-06-14DOI: 10.1109/CPE-POWERENG58103.2023.10227382
F. Pellitteri, N. Campagna, R. Inguanta, R. Miceli
Power electronics plays a crucial role in the implementation of a clean hydrogen production system, whose last stage consists of a water electrolyzer requiring a DC power supply to be in operation. The most recent architectural solutions imply the use of an isolated DC-DC converter, collecting energy from medium voltage (MV) and delivering it to the electrolyzer. An equivalent electrical model of the electrolyzer is therefore needed, as well as an accurate design of the power converter stage, aiming at a high-efficiency operation of the electrolyzer’s cells and at a low-ripple supply current, to avoid premature degradation. This work investigates a full-bridge step-down isolated DC-DC converter, focusing on the opportunity of a multiphase interleaved configuration, particularly convenient for the proposed application. The considered maximum power level is 400 kW, representing a small-scale example of an industrial water electrolyzer supplied by a maximum DC voltage of 700 V. Input DC voltage is 7 kV. Power electronics’ simulation have been carried out, as well as model analysis of the proposed converter.
{"title":"Application of a Multiphase Interleaved DC-DC Converter for Power-to-Hydrogen Systems","authors":"F. Pellitteri, N. Campagna, R. Inguanta, R. Miceli","doi":"10.1109/CPE-POWERENG58103.2023.10227382","DOIUrl":"https://doi.org/10.1109/CPE-POWERENG58103.2023.10227382","url":null,"abstract":"Power electronics plays a crucial role in the implementation of a clean hydrogen production system, whose last stage consists of a water electrolyzer requiring a DC power supply to be in operation. The most recent architectural solutions imply the use of an isolated DC-DC converter, collecting energy from medium voltage (MV) and delivering it to the electrolyzer. An equivalent electrical model of the electrolyzer is therefore needed, as well as an accurate design of the power converter stage, aiming at a high-efficiency operation of the electrolyzer’s cells and at a low-ripple supply current, to avoid premature degradation. This work investigates a full-bridge step-down isolated DC-DC converter, focusing on the opportunity of a multiphase interleaved configuration, particularly convenient for the proposed application. The considered maximum power level is 400 kW, representing a small-scale example of an industrial water electrolyzer supplied by a maximum DC voltage of 700 V. Input DC voltage is 7 kV. Power electronics’ simulation have been carried out, as well as model analysis of the proposed converter.","PeriodicalId":315989,"journal":{"name":"2023 IEEE 17th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"156 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133643893","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 : 2023-06-14DOI: 10.1109/CPE-POWERENG58103.2023.10227505
Abualkasim Bakeer, A. Chub, D. Vinnikov
paper evaluates the reliability of photovoltaic (PV) DC-DC converters operating in residential 350 V DC microgrids under the application mission profile from Tallinn, Estonia. The studied DC-DC converter is based on an isolated buck-boost series resonant DC-DC converter (IBBC-SRC). The mission profile comprises solar irradiation and ambient temperature with a one-second resolution for eight months in 2022, from April to November. The reliability of the IBBC-SRC is evaluated using the FIDES Guide, which takes into account the application mission profile and the physics of failure when calculating the random failure rate of the components. A comparison was made with the IBBC-SRC reliability prediction under the annual mission profiles of Aalborg, Denmark, which is commonly used to measure converter reliability. According to the analytical results, the Tallinn mission profile results in virtually the same converter failure rate as the Aalborg mission profile and, consequently, has the same thermal stress of components. The reliability prediction based on the FIDES Guide works best when the mission profile has a high resolution, but when the mission profile is recorded with a low resolution, the reliability prediction is overestimated.
{"title":"Reliability Assessment of Photovoltaic Buck-Boost Microconverter for Estonian Climate Conditions","authors":"Abualkasim Bakeer, A. Chub, D. Vinnikov","doi":"10.1109/CPE-POWERENG58103.2023.10227505","DOIUrl":"https://doi.org/10.1109/CPE-POWERENG58103.2023.10227505","url":null,"abstract":"paper evaluates the reliability of photovoltaic (PV) DC-DC converters operating in residential 350 V DC microgrids under the application mission profile from Tallinn, Estonia. The studied DC-DC converter is based on an isolated buck-boost series resonant DC-DC converter (IBBC-SRC). The mission profile comprises solar irradiation and ambient temperature with a one-second resolution for eight months in 2022, from April to November. The reliability of the IBBC-SRC is evaluated using the FIDES Guide, which takes into account the application mission profile and the physics of failure when calculating the random failure rate of the components. A comparison was made with the IBBC-SRC reliability prediction under the annual mission profiles of Aalborg, Denmark, which is commonly used to measure converter reliability. According to the analytical results, the Tallinn mission profile results in virtually the same converter failure rate as the Aalborg mission profile and, consequently, has the same thermal stress of components. The reliability prediction based on the FIDES Guide works best when the mission profile has a high resolution, but when the mission profile is recorded with a low resolution, the reliability prediction is overestimated.","PeriodicalId":315989,"journal":{"name":"2023 IEEE 17th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130539375","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 : 2023-06-14DOI: 10.1109/CPE-POWERENG58103.2023.10227459
J. Garrido-Zafra, A. Gil-de-Castro, A. Moreno-Muñoz, Emilio J. Molina-Martínez, Fco. Javier López-Alcolea, A. Torres
In recent years, many research projects aimed at improving buildings’ energy efficiency through active and passive solutions. However, few of these projects are addressing the presence of critical loads. The IMPROVEMENT project, "Integration of combined cooling, heating, and electricity microgrids in public buildings with zero energy consumption under high energy quality and service continuity requirements", aims at this double scope of action, developing innovative technologies that allow public buildings to move towards a sustainable energy model, while simultaneously increasing the security of energy supply for critical services. With several months to go until the end of the project, the document presents the latest developments and lessons learned to date in relation to the power management system, and the IoT-enabled power quality data analytics platform deployed.
{"title":"Power Quality Management in Microgrids for Mission Critical NZEBs: A Case Study","authors":"J. Garrido-Zafra, A. Gil-de-Castro, A. Moreno-Muñoz, Emilio J. Molina-Martínez, Fco. Javier López-Alcolea, A. Torres","doi":"10.1109/CPE-POWERENG58103.2023.10227459","DOIUrl":"https://doi.org/10.1109/CPE-POWERENG58103.2023.10227459","url":null,"abstract":"In recent years, many research projects aimed at improving buildings’ energy efficiency through active and passive solutions. However, few of these projects are addressing the presence of critical loads. The IMPROVEMENT project, \"Integration of combined cooling, heating, and electricity microgrids in public buildings with zero energy consumption under high energy quality and service continuity requirements\", aims at this double scope of action, developing innovative technologies that allow public buildings to move towards a sustainable energy model, while simultaneously increasing the security of energy supply for critical services. With several months to go until the end of the project, the document presents the latest developments and lessons learned to date in relation to the power management system, and the IoT-enabled power quality data analytics platform deployed.","PeriodicalId":315989,"journal":{"name":"2023 IEEE 17th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114505470","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 : 2023-06-14DOI: 10.1109/CPE-POWERENG58103.2023.10227379
P. Aditya, Satish Naik Banavath, A. Lidozzi, A. Chub, D. Vinnikov
Almost 30% of the world’s energy-related green-house gas emissions come from buildings, and by 2030, cities are projected to account for 73% of the world’s energy use. In most cities, buildings represent significant energy consumption and produce appreciable carbon emissions. Zero-energy buildings are gaining more attention with the penetration of renewable energy sources at the distribution end and increased requirements for high energy efficiency. Considering the reliability, efficiency, ease of control and integration of renewable energy sources, and direct connection of DC loads, the DC microgrid system outperforms the AC system. Moreover, the DC system protection design has remained a serious obstacle to the faster adoption of DC systems due to the characteristics of DC fault current. After an unexpected fault, the system current can rapidly develop to more than a hundred times the nominal current without a natural zero current crossing point. Therefore, DC microgrid systems require fast and reliable protection devices such as DC circuit breakers (DCCB). This paper proposes a new bidirectional solid-state DCCB incorporating MOSFETs in the main conduction path and a controlled auxiliary branch with MOSFETs and capacitors. The proposed DCCB provides current sharing between two branches at the instant of a fault and reduces current stress on the main MOSFETs during turn-off. The prototype is built, and the circuit breaker’s performance is validated for a system rating of 350V/16A, equivalent to DC building electrical specifications.
{"title":"Bidirectional SSCB for Residential DC Microgrids with Reduced Voltage and Current Stress during Fault Interruption","authors":"P. Aditya, Satish Naik Banavath, A. Lidozzi, A. Chub, D. Vinnikov","doi":"10.1109/CPE-POWERENG58103.2023.10227379","DOIUrl":"https://doi.org/10.1109/CPE-POWERENG58103.2023.10227379","url":null,"abstract":"Almost 30% of the world’s energy-related green-house gas emissions come from buildings, and by 2030, cities are projected to account for 73% of the world’s energy use. In most cities, buildings represent significant energy consumption and produce appreciable carbon emissions. Zero-energy buildings are gaining more attention with the penetration of renewable energy sources at the distribution end and increased requirements for high energy efficiency. Considering the reliability, efficiency, ease of control and integration of renewable energy sources, and direct connection of DC loads, the DC microgrid system outperforms the AC system. Moreover, the DC system protection design has remained a serious obstacle to the faster adoption of DC systems due to the characteristics of DC fault current. After an unexpected fault, the system current can rapidly develop to more than a hundred times the nominal current without a natural zero current crossing point. Therefore, DC microgrid systems require fast and reliable protection devices such as DC circuit breakers (DCCB). This paper proposes a new bidirectional solid-state DCCB incorporating MOSFETs in the main conduction path and a controlled auxiliary branch with MOSFETs and capacitors. The proposed DCCB provides current sharing between two branches at the instant of a fault and reduces current stress on the main MOSFETs during turn-off. The prototype is built, and the circuit breaker’s performance is validated for a system rating of 350V/16A, equivalent to DC building electrical specifications.","PeriodicalId":315989,"journal":{"name":"2023 IEEE 17th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"252 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115007193","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：