San Diego Supercomputer Center’s Post

Just finished attending the webinar on "Transient and dynamic simulations of large power systems with high levels of IBRs" by Anderson Hoke from National Renewable Energy Laboratory. It was pretty insightful to understand that how the increasing number of Inverter-based resources affects the simulator's ability to capture the dynamics of the system and how the Electromagnetic transient simulations need to be faster for the large power systems. The ParaEMT seems to be an important tool to fasten up the simulation timings and accuracy by distributing work using multiple devices to do a large power system anaylsis. The thing that fascinated me a lot was : The ability of ParaEMT to enact as similar results as PSCAD without losing on the accuracy while being faster for large power systems. Looking forward to follow the journey of development of this tool. #powersystem #simulation #NREL #ParaEMT #Renewableenergy #EMTsimulation #IBR #Inverterbasedresources #powergrid #EPRI

📢 𝗨𝗽𝗰𝗼𝗺𝗶𝗻𝗴 𝗘𝗦𝗜𝗖 𝗦𝗲𝗺𝗶𝗻𝗮𝗿 𝗔𝗹𝗲𝗿𝘁! 📢 Join us on Tuesday, November 5, from 1 PM – 2 PM in EME 26 for an insightful seminar by Jim Follum from Pacific Northwest National Lab. Dr. Follum will be presenting on the cutting-edge topic: "Demonstrating High-Speed Wide-Area Power System Measurement Applications." 𝗢𝘃𝗲𝗿𝘃𝗶𝗲𝘄 An important aspect of power grid modernization is providing system operators with real-time visibility across wide areas of the system. Over the past 20 years, this visibility has significantly improved with the deployment of high-speed synchronized measurement systems. Many applications have been deployed by grid operators as new capabilities continue to be developed. In this presentation, Dr. Follum will begin with an overview of today’s advanced measurement systems and their use in control rooms. Next, he will discuss the development and field demonstration of applications for monitoring power system stability, identifying the sources of wide-area oscillations, and automatically reviewing generator performance. The presentation will conclude with a discussion on how the widespread deployment of inverter-based resources is driving interest in a new generation of wide-area monitoring systems with even more advanced capabilities. 𝗦𝗽𝗲𝗮𝗸𝗲𝗿 𝗕𝗶𝗼 Dr. Jim Follum received the B.S. and Ph.D. degrees in electrical engineering from the University of Wyoming in 2011 and 2014, respectively. He joined the Department of Energy’s Pacific Northwest National Laboratory (PNNL) in 2014, where his research focuses on the application of signal processing techniques to problems of power system dynamics. He has contributed to multiple software tools designed to detect and analyze power system disturbances in synchronized power system measurements. He leads the DOE’s North American SynchroPhasor Initiative (NASPI) working group, co-chairs the DOE Grid Modernization Initiative’s Operations Pillar, and co-chairs the IEEE Power and Energy Society’s Task Force on Forced Oscillations. 🌐 For more information on the Power Seminar Series, visit our website at https://lnkd.in/gprSMWMi #ESIC #WSU #PowerEngineering #GridModernization #WideAreaMeasurement #PNNL #PowerSeminarSeries #EnergyInnovation #SmartGrid #SustainableEnergy #PowerSystems #RenewableIntegration #InverterTechnology #SignalProcessing #ElectricGrid #EngineeringResearch #PhasorTechnology #SystemOperators #DynamicGrid

Researchers at Oak Ridge National Laboratory have developed new #software using electromagnetic transient analysis, a type of #electricgrid simulation, to speed up calculations that more accurately predict how modern #powerelectronics in the grid will affect its operation. This provides an essential tool for planning, design and operation of the modern power grid as it incorporates new renewable power generation and electric vehicle chargers. https://lnkd.in/gnh2XW-g

🔊 NEW ESIG REPORT 🔊 NEW release of ESIG's latest report, "Diagnosis and Mitigation of Observed Oscillations in IBR-Dominant Power Systems: A Practical Guide". This comprehensive guide, developed by our Stability Task Force, offers essential guidance for engineering teams tasked with diagnosing oscillatory behavior in power systems and implementing effective mitigations. Whether you're dealing with real-time system issues or simulations, this guide provides practical steps and tools to help you navigate the complexities of inverter-based resource (IBR) integration. 📘 Read the full report 👉 ESIG Oscillations Guide Webinar: Diagnosis and Mitigation of Oscillations in IBR-Dominant Power Systems 🌐 As inverter-based resources (IBRs) become more prevalent, oscillations in power systems present new challenges. This webinar will provide a practical guide for diagnosing and mitigating these oscillations—essential knowledge for practitioners in the field. 📅 Date: Wednesday, September 11, 2024 ⏰ Time: 11:00 PM - 12:00 AM (UTC+03:00) Jerusalem 🎤 Featured Speaker: Nick Miller, Principal, HickoryLedge LLC 🔗 Register Now: Secure your spot today and get your invitation upon approval! https://lnkd.in/djpTUPX6 💡 Webinar Highlights: Nick Miller, a renowned power system engineer with extensive expertise in wind and solar integration, will share insights from his decades of experience. This session will serve as a diagnostician’s assistant, guiding you through identifying oscillations, understanding their causes, and taking appropriate action. #Webinar #PowerSystems #RenewableEnergy #IBR #GridStability #EngineeringExcellence #PowerSystems #RenewableEnergy #GridStability #Engineering #IBR #Oscillations

New grid forming strategy for solar batteries: A group of scientists from a major Chinese grid operator have proposed to use an enhanced version of the particle swarm optimization algorithm to adjust inertia and damping coefficients in batteries linked to PV systems. Their approach was validated through a series of simulation and was found to enhance transient performance. #RenewableEnergy #Photovoltaic #Technology

Spending one semester at RWTH Aachen University and working on Project: 'Stability in converter dominated transmission systems' with the supervision of Prof. Albert Moser and his research team Sophia Tepe and Mourad Kharrat. Thank you Haoyang Liu for accompanying me. §In this project, we focused on the stability analysis of wind power systems. To assess the dynamic behavior of the system, both frequency domain and time domain analyses were employed. In the frequency domain analysis, Nyquist plots were utilized instead of Bode plots because Nyquist plots are suitable for systems with poles or zeros in the right half-plane and provide a comprehensive view of the system's stability characteristics across the entire frequency range. By observing the Nyquist plots, we evaluated whether the system encircled the (-1,0) point to determine the stability of the closed-loop system. In the time domain analysis, we examined the system's response to initial conditions or external disturbances, and the transient and steady-state behavior of current and voltage waveforms further verified the conclusions of the frequency domain analysis. Although Bode plots offer an intuitive way to assess stability margins, this project opted for Nyquist plots as they can more comprehensively handle complex wind farm systems, especially when coupled with a weak grid. #Highvoltage #converter #Grid #electricalpowersystems #RWTH #Aachen

💡 #Highcitedpaper Delft University of Technology 🌊 Title: Downsizing the Linear PM Generator in Wave Energy Conversion for Improved Economic Feasibility 🔑 Keywords: #wave #energyconverter; linear PM #generator; #downsizing 🔗 Read more: https://lnkd.in/gtf2wmXR 📜 Abstract：A crucial part of wave energy converters (WECs) is the power take-off (PTO) mechanism, and PTO sizing has been shown to have a considerable impact on the levelized cost of energy (LCOE). However, as a dominating type of PTO system in WECs, previous research pertinent to PTO sizing did not take modeling and optimization of the linear permanent magnet (PM) generator into consideration. To fill this gap, this paper provides an insight into how PTO sizing affects the performance of linear permanent magnet (PM) generators, and further the techno-economic performance of WECs. To thoroughly reveal the power production of the WEC, both hydrodynamic modeling and generator modeling are incorporated. In addition, three different methods for sizing the linear generator are applied and compared. The effect of the selection of the sizing method on the techno-economic performance of the WEC is identified. Furthermore, to realistically reflect the relevance of PTO sizing, wave resources from three European sea sites are considered in the techno-economic analysis. The dependence of PTO sizing on wave resources is demonstrated.

An Analytical approach to power optimization of #CSP plants with #thermal storage This paper deals with the problem of determining the optimal capacity of #Concentrated #Solar Power plants, especially in the context of hybrid solar power plants. The proposed method is based on the use of additional non-dimensional parameters, in particular, the design factor and the solar multiple factor. This paper presents a mathematical optimization model that focuses on the capacity of concentrated solar power plants where thermal storage plays a key role in the energy source. The analytical approach provides a more complete understanding of the design process for hybrid power plants. In addition, the use of additional factors and the combination of the proposed method with existing numerical methods allows for more refined optimization, which allows for the more accurate selection of the capacity for specific geographical conditions. Importantly, the proposed method significantly increases the speed of computation compared to that of traditional numerical methods. Finally, the authors present 𝘁𝗵𝗲 𝗿𝗲𝘀𝘂𝗹𝘁𝘀 of the analysis of the proposed system of equations for calculating the levelized cost of electricity (LCOE) for hybrid solar power plants. The nonlinearity of the LCOE on the main calculation parameters is shown. https://lnkd.in/dCFCpcZ8 German Aerospace Center (DLR) Andrii Cheilytko Spiros Alexopoulos

Excited to share that I have successfully defended my Master's thesis in Electrical Power and Machines Engineering. My research focused on the "Impact of Individual Wind Turbines on the Low Voltage Distribution grid and Mitigation Technique for Grid Voltage Stability Enhancement: A Case Study of Bint-Jbeil Distribution Grid". #RenewableEnergy #WindEnergy #Distributiongrid #Ongridsystems

Optimising wind turbine blade shapes for robust aerodynamic performance is challenged by the curse of dimensionality, which involves managing numerous geometric variables. While simulation-based methods could handle many design variables, they are computationally expensive for practical robust design optimisation under uncertainties like wind speed. 🌬 To address this, the A*STAR's Institute of High Performance Computing (IHPC) team developed a new data-driven modal parameterisation method for efficient optimisation of the three-dimensional wind turbine blade shape. This approach involves building airfoil databases, training AI models, generating blade shapes, and simplifying their descriptions, paving the way for more efficient and robust wind turbine blade design. 🌊 The full article is featured in Science Direct - Renewable Energy (impact factor: 8.7): https://lnkd.in/gsDaZBR6 Jichao Li  My Ha Dao  Tuyen Le Quang #IHPC #ModalParameterisation #optimisation #windturbine #modellingnsimulation #renewableenergy