- 标题
- 摘要
- 关键词
- 实验方案
- 产品
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Embedded System for Lighting Control of LED Light Source Applied to Therapy of Radiofrequency Ablation in Hepatocellular Carcinoma
摘要： This paper presents a distributed, massively parallel architecture that enables tractable transmission and distribution locational marginal price (T&DLMP) discovery along with optimal scheduling of centralized generation, decentralized conventional and flexible loads, and distributed energy resources (DERs).
关键词： proximal message passing (PMP),Distributed power market clearing,reserve pricing,distribution network locational marginal prices (DLMP),reactive power pricing
更新于2025-09-19 17:13:59
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[IEEE 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC) - Chicago, IL, USA (2019.6.16-2019.6.21)] 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC) - Correlating the Hot Spots and Power Degradation seen in crystalline silicon modules in All India Survey of PV Module Reliability 2018
摘要： This paper presents a distributed, massively parallel architecture that enables tractable transmission and distribution locational marginal price (T&DLMP) discovery along with optimal scheduling of centralized generation, decentralized conventional and flexible loads, and distributed energy resources (DERs).
关键词： proximal message passing (PMP),Distributed power market clearing,reserve pricing,distribution network locational marginal prices (DLMP),reactive power pricing
更新于2025-09-19 17:13:59
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[IEEE 2019 IEEE 2nd International Conference on Automation, Electronics and Electrical Engineering (AUTEEE) - Shenyang, China (2019.11.22-2019.11.24)] 2019 IEEE 2nd International Conference on Automation, Electronics and Electrical Engineering (AUTEEE) - Voltage Influence Analysis of Photovoltaic Grid Connection under Ring Network Structure
摘要： Large-scale grid-connected photovoltaic power supply will impact the operation of the grid, resulting in voltage fluctuations, at the same time, harmonic injection will affect the distribution of harmonic voltage in the system. Based on the theoretical analysis and demonstration of the voltage deviation caused by the photovoltaic power supply connecting to the feeder of 10kV distribution network and the influence of the total harmonic distortion rate THDu.
关键词： photovoltaic power generation,voltage fluctuation,power flow reversal,distribution network,voltage jump
更新于2025-09-19 17:13:59
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3-D-Printed Modified Butler Matrix Based on Gap Waveguide at W-Band for Monopulse Radar
摘要： This article presents the design and fabrication of low-loss, -weight, and -cost, modified Butler matrix in groove gap waveguide technology at W-band, implemented by additive manufacturing. The design, simulations, and measurements of the elements that conform to the modified Butler each of matrix are presented. The proposed modified Butler matrix is asymmetric and oriented to an easy assembly with a radial antenna in order to obtain simultaneous sum and difference patterns for a narrowband radar application. The measured individual components of the modified Butler matrix fit very well with the simulations. As for the full modified Butler matrix, measurements provide a 0.7% bandwidth below ?20 dB for sum and difference ports centered at 94 GHz. The amplitude and phase imbalance are below 1.5 dB and 20?, respectively. This narrow bandwidth is due to the difference in length between input and output ports due to the asymmetry of the design. The total losses of the modified Butler matrix are below 1 dB.
关键词： low profile,distribution network,Additive manufacturing,butler matrix,low cost,W-band,point-to-point communications,low weight,groove gap waveguide (GGW),radar,low loss,monopulse,space debris
更新于2025-09-16 10:30:52
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[IEEE 2018 China International Conference on Electricity Distribution (CICED) - Tianjin (2018.9.17-2018.9.19)] 2018 China International Conference on Electricity Distribution (CICED) - A Probabilistic Load Flow Method of Village-level Photovoltaicload Station Scaled Access to the Distribution Network
摘要： With the vigorous implementation of the PV Poverty Alleviation Policy, a large number of PV power plants have access to the rural distribution network, in order to accurately and comprehensively assess the influence of the uncertain and correlative factors of distributed photovoltaic for rural distribution networks, probabilistic load flow calculations are applied for rural distribution networks that consider the relevance of photovoltaic output. Based on the characteristics of PV output correlation, a probability distribution model with correlated probabilistic input variables was constructed using in hybrid Copula theory, and a cumulant probabilistic load flow calculation method based on Copula theory was proposed to consider the correlation of input variables. Through the IEEE-33 bus system and an actual distribution network simulation in Gansu Province, the simulation results show that the model can display the probability characteristics of photovoltaic power generation well, and the hybrid Copula function is more accurate than the single Copula function in dealing with correlation problems. The results are compared with the Monte Carlo method to verify the rapidity and accuracy of the proposed method.
关键词： Copula theory,photovoltaic,rural distribution network,cumulant method,probabilistic load flow
更新于2025-09-16 10:30:52
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[IEEE 2019 IEEE PES Innovative Smart Grid Technologies Conference - Latin America (ISGT Latin America) - Gramado, Brazil (2019.9.15-2019.9.18)] 2019 IEEE PES Innovative Smart Grid Technologies Conference - Latin America (ISGT Latin America) - Estimation of the Probability of Integration of Photovoltaic Microgeneration using Fuzzy Logic
摘要： There is a great diversification of the sources used for the generation of electric energy in Brazil, which was accentuated with Normative Resolution 482 of 2012, of the National Agency of Electric Energy (ANEEL). From this resolution and the creation of some governmental policies, the participation of the Distributed Photovoltaic Generation (DPG) in the electric system began to be made feasible and its penetration levels tend to increase continuously. Therefore, it is necessary to develop methods capable of estimating the potential of DPG integration in the distribution system, so that the distributor can adapt it when necessary and carry out more reliable planning. Therefore, this paper proposes a methodology, based on fuzzy logic, to estimate the probabilities of DPG insertion in low voltage networks. The variables adopted reflect the trends in the electricity sector, such as energy prices, the cost of photovoltaic systems (PVS), the incentives given to the DPG, the attractiveness of the DPG and the time of return on investment. The output of the fuzzy inference system presents a probability of integrating the DPG into the current distribution system.
关键词： Photovoltaic Generation,Integration of DPG,Distribution network,Fuzzy Logic
更新于2025-09-16 10:30:52
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Increasing electric vehicle hosting capacity and equality for fast charging stations using residential photovoltaics in medium‐ and low‐voltage distribution networks
摘要： To achieve broad installation of electric vehicles (EVs), it is important to deploy fast EV charging stations at many points without distribution network reinforcement. This study develops a methodology for evaluating the hosting capacity for fast EV charging loads under medium- and low-voltage (MV and LV) distribution networks with bus-voltage and line-current constraints; hence, the promising combination of fast EV charging and rooftop photovoltaic (PV) generation in distribution networks is analyzed. In particular, on a sunny day, the active power output supplied by rooftop PVs can be used to mitigate the voltage drop problem for end-use residential customers. On a cloudy day, even though the active power output is smaller, the residual inverter capacities of rooftop PVs can be used to generate reactive power from those systems. In addition, in order to evaluate the spatial equalization of the EV hosting capacity at fast charging stations, an equalization factor of the spatial distribution is proposed, which is obtained as a percentage of the EV hosting capacity in the equally maximized case over that in the simply maximized case. The equalization factor can be improved from approximately 33 to 70% using the active and reactive power outputs from residential rooftop PVs.
关键词： distribution network,photovoltaic systems,distributed generations,load flow calculation,fast charging station,electric vehicles
更新于2025-09-12 10:27:22
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Energy Storage Application in Improving Distribution Network’s Solar Photovoltaic (PV) Adoption Capability
摘要： In this paper, the study is centered on the high penetration of distributed solar photovoltaic (PV) integrated into the distribution network and measures to improve its adoption capability, especially in the context of energy internet development. For this purpose, a model is proposed, where the effects of energy storage to improve the distribution network’s PV penetration level are evaluated. And a specific city distribution network in China as well as its load and PV outputs data of a typical year are chosen to certificate the effectiveness of the proposed model and method.
关键词： adoption capability,PV,Distribution network,Energy Storage
更新于2025-09-12 10:27:22
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Maximum Power Photovoltaic Units Penetration under Voltage Constraints Criteria in Distribution Network Using Probabilistic Load Flow
摘要： Nowadays, the connections of Renewable Energy Sources to Distribution Networks are increasing in large number. In order to assess the performance of Distribution Network under normal operating conditions Probabilistic Load Flow analysis is necessary in order to take into consideration the stochastic behavior of Load Demands and Renewable Energy Sources (for example the Photovoltaics Generation Units). Generally, Deterministic Load Flow calculations are typically needed to assess the allowed Distributed Generation penetration level for a given network in order to ensure, for example, that Voltage limits are not exceeded. The present paper deals with the Probabilistic Load Flow using Monte Carlo techniques. The developed program allows probabilistic predictions of Voltages profiles at all buses or nodes of a Distribution Networks. A practical case is also discussed to show the application of the study in order to assess the maximum Photovoltaic power penetration that can be installed into a Distribution Network without violating Voltage Constraints.
关键词： Distribution Network,Distributed Generation,Probabilistic Load Flow,Photovoltaic Units,Renewable Energy Sources
更新于2025-09-12 10:27:22
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[IEEE 2019 IEEE PES Innovative Smart Grid Technologies Conference - Latin America (ISGT Latin America) - Gramado, Brazil (2019.9.15-2019.9.18)] 2019 IEEE PES Innovative Smart Grid Technologies Conference - Latin America (ISGT Latin America) - Local volt/var Control Strategy for Smart Grids using Photovoltaic Smart Inverters
摘要： This paper presents further study for a new local volt/var control (VVC) methodology, using the smart inverters applied in the connection of photovoltaic (PV) distributed generation (DG) to the electric grid. The VVC is a highly beneficial functionality to an electrical distribution system, especially when considering its modernization, with further use of communication technologies and on-site generation. Thus, by using DG inverters on medium and low voltage levels, this system benefits from both those concepts, as it helps the voltage regulation by either absorbing or supplying reactive power to the distribution network. A modified IEEE 34 buses test grid is used to demonstrate the local VVC strategy with the addition of 8 photovoltaic generators. The results were obtained from the OpenDSS and MATLAB softwares for model control and simulation. The methodology was analyzed and tested considering two different cases: following the ABNT NBR 16149 standard and disregarding its limits.
关键词： Volt/var Control,Distributed Generation,Distribution Network,Photovoltaic System,Smart Inverter
更新于2025-09-12 10:27:22