Searched for: subject%3A%22inertia%22
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Guo, Feng (author), Cheng, Gang (author), Pang, Y. (author)
Aiming at a 5-DOF hybrid optical mirror polishing robot, the explicit dynamic model considering the joint friction is established and the inertia coupling distribution is studied. Firstly, the kinematics of the manipulator is solved based on closed-loop vector method, and the dynamic model is established with Newton-Euler method based on the...
journal article 2022
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Klifman, Boyan (author)
Existing wind load simulators such as wind tunnels and fans have multiple disadvantages, especially when used in a scaled-down environment. This paper proposes to simulate wind loads by using an admittance-controlled industrial robot arm rigidly attached to a research object. Admittance control should make it possible to simulate wind loads and...
master thesis 2021
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Naveh, Iman M. Hosseini (author), Rakhshani, E. (author), Mehrjerdi, Hasan (author), Elsaharty, Mohamed A. (author)
This paper presents a comprehensive evaluation of the effect of quasi oppositional - based learning method utilization in output tracking control through a swarm-based multivariable Proportional-Integral-Derivative (SMPID) controller, which is tuned by a novel performance index based on the step response characteristics in multi-input multi...
journal article 2021
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Rakhshani, E. (author), Naveh, Iman Mohammad Hosseini (author), Mehrjerdi, Hasan (author)
This paper presents a new application of advanced SMPI controller for a newly introduced interconnected dynamic system with VSP based HVDC links for frequency control problem. This work presents an outgrowth of analysis about the Swarm – Based Optimization Algorithms (SBOAs) in the tuning process of Multivariable Proportional – Integral (MPI)...
journal article 2021
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Sun, Mingyu (author), Liu, Gaoyuan (author), Popov, M. (author), Terzija, Vladimir (author), Azizi, Sadegh (author)
The conventional Under Frequency Load Shedding (UFLS) scheme could result in unacceptably low frequency nadirs or overshedding in power systems with volatile inertia. This paper proposes a novel UFLS scheme for modern power systems whose inertia may vary in a wide range due to high penetration of renewable energy sources (RESs). The proposed...
journal article 2021
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Rakhshani, E. (author), Naveh, Iman Mohammad Hosseini (author), Mehrjerdi, Hasan (author), Pan, K. (author)
This paper proposes a novel application for the optimal Linear Quadratic Gaussian (LQG) servo controller to enable a proper coordination of the AC/HVDC interconnected system with Virtual Synchronous Power (VSP) based inertia emulation. Particularly, the proposed control design takes the process disturbances and measurement noise of the...
journal article 2021
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Abdollahi, Mostafa (author), Candela, Jose Ignacio (author), Tarraso, Andres (author), Atef Elsaharty, Mohamed (author), Rakhshani, E. (author)
Nowadays, modern power converters installed in renewable power plants can provide flexible electromechanical characteristics that rely on the developed control technologies such as Synchronous Power Controller (SPC). Since high renewable penetrated power grids result in a low-inertia system, this electromechanical characteristic provides...
journal article 2021
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Boon, Anna (author)
With the transition towards renewable energy, offshore wind power farms are being constructed or planned in many places involving placing wind turbines in the sea. The monopiles for these wind turbines are vertical cylinders which are situated in a flow with high Reynolds numbers and low to intermediate Keulegan- Carpenter numbers. The Reynolds...
master thesis 2020
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de Ruiter, Luc (author)
Unconventional aircraft designs have the potential to lower the impact of aviation on emissions and climate as compared to conventional aircraft designs. However, the flight dynamics behaviour of such unconventional configurations must be carefully evaluated by studying Stability and Control (S&C) characteristics to design safe aircraft and...
master thesis 2020
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Ahmad, Z. (author), Rueda, José L. (author), Veerakumar, Nidarshan (author), Rakhshani, E. (author), Palensky, P. (author), van der Meijden, M.A.M.M. (author)
A task for new power generation technologies, interfaced to the electrical grid by power electronic converters, is to stiffen the rate of change of frequency (RoCoF) at the initial few milliseconds (ms) after any variation of active power balance. This task is defined in this article as fast active power regulation (FAPR), a generic definition...
review 2020
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Oureilidis, Konstantinos (author), Malamaki, Kyriaki-Nefeli (author), Gkavanoudis, Spyros (author), Cvetkovic, M. (author), Mauricio, Juan Manuel (author), Maza Ortega, Jose Maria (author), Martinez Ramos, Jose Luis (author), Papaioannou, George (author), Demoulias, Charis (author)
The high proliferation of converter-dominated Distributed Renewable Energy Sources (DRESs) at the distribution grid level has gradually replaced the conventional synchronous generators (SGs) of the transmission system, resulting in emerging stability and security challenges. The inherent characteristics of the SGs are currently used for...
review 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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Pan, K. (author), Dong, J. (author), Rakhshani, E. (author), Palensky, P. (author)
The high penetration of renewable energy resources and power electronic-based components has led to a low-inertia power grid which would bring challenges to system operations. The new model of load frequency control (LFC) must be able to handle the modern scenario where controlled areas are interconnected by parallel AC/HVDC links and storage...
journal article 2020
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Rakhshani, E. (author), Perilla Guerra, A.D. (author), Rueda, José L. (author), Gonzalez-Longatt, Francisco M. (author), Soeiro, Thiago B. (author), van der Meijden, M.A.M.M. (author)
This paper presents different forms of Fast Active Power Injection (FAPI) control schemes for the analysis and development of different mitigation measures to address the frequency stability problem due to the growth of the penetration level of the Power Electronic Interfaced Generation (PEIG) in sustainable interconnected energy systems. Among...
journal article 2020
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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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Veerakumar, Nidarshan (author), Ahmad, Z. (author), Ebrahim Adabi, M. (author), Rueda, José L. (author), Palensky, P. (author), van der Meijden, M.A.M.M. (author), Gonzalez-Longatt, Francisco (author)
This paper presents a comparative assessment of fast active power regulation (FAPR) control strategies implemented on megawatt-scale controllable electrolysers, with the goal of achieving enhanced frequency support during large active power imbalances that lead to major under-frequency deviations. The FAPR control strategies consist of three...
conference paper 2020
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Rakhshani, E. (author), Naveh, Iman Mohammad Hosseini (author), Mehrjerdi, Hasan (author), Rueda, José L. (author), Palensky, P. (author)
This paper proposes a new application for an optimal linear regulator for mitigation of frequency performance of an interconnected AC/DC system with (Virtual Synchronous Power) VSP based HVDC capabilities. The action of VSP, which is added into the HVDC control system, is to provide virtual inertia for the low-inertia system during a...
conference paper 2020
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Ersdal, A. M. (author), Gonzalez-Longatt, F. (author), Acosta, M. N. (author), Rueda, José L. (author), Palensky, P. (author)
Modern power systems are increasing the connection of power electronic converters (PECs), and new inertia-less technologies displace the synchronous generation units. Therefore, the total rotational system inertia is reduced, creating new problems related to the system frequency control and stability. Several mechanisms to enable the PECs with...
conference paper 2020
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Stojković, J. (author), Lekic, A. (author), Stefanov, Predrag (author)
Decarbonization of power systems has put Renewable Energy Sources (RES) at the forefront when it comes to electric power generation. The increasing shares of converter-connected renewable generation cause a decrease of the rotational inertia of the Electric Power System (EPS), and consequently deteriorate the system capability to withstand large...
journal article 2020
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Pan, K. (author), Rakhshani, E. (author), Palensky, P. (author)
Power systems are moving towards hybrid AC/DC grids with the integration of HVDC links, renewable resources and energy storage modules. The load frequency control (LFC) of tomorrow has to consider the complex interactions between these components. Meanwhile, more attention should be paid to cyber security concerns as the LFC loop highly...
journal article 2020
Searched for: subject%3A%22inertia%22
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