Searched for: subject:"inertia"
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de Martino, P. (author)
Historical paths matter in port-city regions. Here, spatial patterns and governance arrangements are path dependent to the point that once certain paths have been established, these become hard to change. This defines a condition of institutional inertia that plays a significant role in preventing any form of spatial change. Naples is an...
journal article 2020
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Hoevenaars, A.G.L. (author), Krut, S. (author), Herder, J.L. (author)
The dynamic performance of a parallel manipulator is often limited by its natural frequencies. These frequencies are a result of the controlled actuator stiffness and the mechanical design. Typically, only the lowest natural frequencies are of interest. However, existing methods to analyze natural frequencies of parallel manipulators with...
journal article 2020
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Rakhshani, E. (author), Gusain, D. (author), Sewdien, V.N. (author), Rueda Torres, J.L. (author), van der Meijden, M.A.M.M. (author)
High penetration of power electronic interfaced generation, like wind power, has an essential impact on the inertia of the interconnected power system. It can pose a significant threat to the frequency stability. This paper introduces the notion of the key performance indicator (KPI) and illustrates its application on large scale power systems,...
journal article 2019
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Taheri, M. (author), van Geenhuizen, M.S. (author)
This article provides an attempt to better understand the establishment of international knowledge relationships, including changes over time. Internationalization of young high-tech firms is strongly required given the drive for upscaling technology solutions and given the increased global spread of knowledge centers. To increase...
journal article 2019
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Oude Nijhuis, A.C.P. (author)
Scanning radars are promising sensors for atmospheric remote sensing, giving potential to retrieve parameters that characterize the local air dynamics during rain. For the observation of air motion, radars are relying on the backscatter of particles, which can, for example, be raindrops or insects. To measure wind vectors and turbulence...
doctoral thesis 2019
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van de Loosdrecht, Arianne (author)
Instrumented treadmills and perturbations of the treadmill are commonly used for gait analysis and can provide real time biomechanical information and feedback of gait patterns and abnormalities. Force plates in the treadmill are combined with motion capture data and fed into a musculoskeletal model. High accuracy of the force plates is needed...
master thesis 2019
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Sanchez, F. (author), Gonzalez-Longatt, Francisco (author), Rueda Torres, J.L. (author)
Low inertia power systems experience more extreme frequency dynamics immediately after a disturbance. A higher rate of change of frequency (ROCOF) contributes to a lower frequency nadir which could trigger load shedding schemes. Active power injections in a time frame of two seconds or less are necessary to maintain frequency stability. This...
conference paper 2019
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Suzuki, T. (author), Hu, Zhan (author), Kumada, Kenji (author), Phan Khanh, L. (author), Zijlema, M. (author)
A new wave-vegetation model is implemented in an open-source code, SWASH (Simulating WAves till SHore). The governing equations are the nonlinear shallow water equations, including non-hydrostatic pressure. Besides the commonly considered drag force induced by vertical vegetation cylinders, drag force induced by horizontal vegetation cylinders...
journal article 2019
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Sattam, Ala'a (author)
The shifting of the European countries, including the Netherlands, towards an electricity production dominated by renewable energy sources to be (nearly 70%) by mid-century will have a significant impact on the frequency performance of electric networks. This would cause the level of grid inertia to be considerably reduced. From this perspective...
master thesis 2018
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Bukvić, Uros (author)
Current linear economic model entails coupling of economic growth with resource constraints and degradation of the Earth. In order to combat these negative aspects and to ensure prosperous and sustainable future, a new economic approach is emerging - Circular Economy. Besides neutralizing threats of the linear model, it also promises additional...
master thesis 2018
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Poorte, Michelle (author)
<br/>In the Netherlands the main sources of electricity are currently coal and gas fired power plants. Due to the increasing share of electricity that is produced from renewable energy sources, the operational hours of these conventional power plants are decreasing. However, these power plants are also the main source of frequency reserves,...
master thesis 2017
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Francis, Sachin (author)
Variable Stiffness Laminates are created by spatially varying the fiber orientation resulting in designs that makes use of curved fibers rather than Uni-directional fibers to tailor the properties to design requirement. The advent of automated manufacturing methods such as Automated Fiber Placement and Tailored Fiber Placement has made variable...
master thesis 2017
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McGill, Ryan (author)
The subject matter of this thesis report investigates a synthetic inertia and dynamic stability technique for grid inter-connection of large VSC-HVDC connected offshore windfarms. Assuming traditional load frequency control on the AC grid for the short-term reallocation of power generation resources due to load disturbances, this technique ties...
master thesis 2017
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Candy, A.S. (author)
A new approach to modelling free surface flows is developed that enables, for the first time, 3D consistent non-hydrostatic baroclinic physics that wets and drys in the large aspect ratio spatial domains that characterise geophysical systems. This is key in the integration of physical models to permit seamless simulation in a single...
journal article 2017
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Meijers, P.C. (author), Tsouvalas, A. (author), Metrikine, A. (author)
Due to the increasing need for energy from renewable resources, a large number of offshore wind farms are planned to be constructed in the near future. Despite the plethora of available foundation concepts for offshore wind turbines, the monopile foundation is the most widely adopted concept in practice. To predict the installation process for a...
conference paper 2017
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Li, Nana (author), Jia, Li (author), Lu, Jing (author), Menenti, M. (author), Zhou, J. (author)
The regional surface soil heat flux (G0) estimation is very important for the large-scale land surface process modeling. However, most of the regional G0 estimation methods are based on the empirical relationship between G0 and the net radiation flux. A physical model based on harmonic analysis was improved (referred to as "HM model") and...
journal article 2017
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Zheng, Y. (author)
The inertial response plays a vital role in electrical networks to reduce the rate of change of frequency (RoCoF) following a contingency event. If the inertia has a low or zero value due to a lack of synchronous generators, then the electrical network might experience large undesirable frequency deviations. To overcome this problem, in previous...
master thesis 2016
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Decloedt, D. (author)
master thesis 2016
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Swart, W. (author)
The aim of this thesis is to investigate the use of a bifilar pendulum for determining the moments of inertia of the TU Delft solar boat and to quantitatively predict the estimates. In the first part, several methods are discussed which can be applied in deriving the equations of motion of the pendulum. A new method, Kane's method, will be...
bachelor thesis 2016
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Taheri, M. (author), van Geenhuizen, M.S. (author)
Industrial competence is increasingly dispersed across the globe, urging technology-based firmsin Europe to establish international knowledge relationships, sometimes even at larger distances.This paper examines patterns of international knowledge relationships and the influence ofcapability factors of university spin-off firms on building such...
conference paper 2016
Searched for: subject:"inertia"
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