Searched for: author%3A%22Rostampour%2C+Vahab%22
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Rostampour, Vahab (author), Keviczky, T. (author)
This paper presents a distributed computational framework for stochastic convex optimization problems using the so-called scenario approach. Such a problem arises, for example, in a large-scale network of interconnected linear systems with local and common uncertainties. Due to the large number of required scenarios to approximate the...
review 2021
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Venkatasubramanian, Janani (author), Rostampour, Vahab (author), Keviczky, T. (author)
This paper considers imbalance problems arising in Energy Management in Smart Grids (SG) as discrete-time stochastic linear systems subject to chance constraints, and proposes a Model Predictive Control (MPC) approach to solve them. It is well-known that handling the closed-loop constraint feasibility of such systems is in general difficult due...
conference paper 2020
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Rostampour, Vahab (author), Ferrari, Riccardo M.G. (author), Teixeira, Andre M.H. (author), Keviczky, T. (author)
In this article two limitations in current distributed model based approaches for anomaly detection in large-scale uncertain nonlinear systems are addressed. The first limitation regards the high conservativeness of deterministic detection thresholds, against which a novel family of set-based thresholds is proposed. Such set-based thresholds...
journal article 2020
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Rostampour, Vahab (author), Ter Haar, Ole (author), Keviczky, T. (author)
This paper presents a framework to carry out multi-area stochastic reserve scheduling (RS) based on an AC optimal power flow (OPF) model with high penetration of wind power using distributed consensus and the alternating direction method of multipliers (ADMM). We first formulate the OPF-RS problem using semidefinite programming (SDP) in...
journal article 2019
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Rostampour, Vahab (author), Jaxa-Rozen, M. (author), Bloemendal, Martin (author), Kwakkel, J.H. (author), Keviczky, T. (author)
Aquifer Thermal Energy Storage (ATES) is a building technology used to seasonally store thermal energy in the subsurface, which can reduce the energy use of larger buildings by more than half. The spatial layout of ATES systems is a key aspect for the technology, as thermal interactions between neighboring systems can degrade system performance....
journal article 2019
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Rostampour, Vahab (author), Wayan Wicak Ananduta, Wayan Wicak (author), Keviczky, T. (author)
This work presents a distributed stochastic energy management framework for a thermal grid with uncertainties in the consumer demand profiles. Using the model predictive control (MPC) paradigm, we formulate a finite-horizon chance-constrained mixed-integer linear optimization problem at each sampling time, which is in general non-convex and hard...
book chapter 2019
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Rostampour, Vahab (author), ter Haar, Ole (author), Keviczky, T. (author)
This work presents a solution method for a day-ahead stochastic reserve scheduling (RS) problem using an AC optimal power flow (OPF) formulation. Such a problem is known to be non-convex and in general hard to solve. Existing approaches follow either linearized (DC) power flow or iterative approximation of nonlinearities, which may lead to...
book chapter 2019
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Rostampour, Vahab (author)
This dissertation aims to develop a rigorous distributed approach to decision making using scenario-based techniques for large-scale networks of interconnected uncertain dynamical systems (called agents). A scenario program is a finite-dimensional optimization problem in which an objective function is minimized under constraints that are...
doctoral thesis 2018
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Rostampour, Vahab (author), Keviczky, T. (author)
This paper presents an energy management framework for building climate comfort (BCC) systems interconnected in a grid via aquifer thermal energy storage (ATES) systems in the presence of two types of uncertainty (private and common). ATES can be used either as a heat source (hot well) or sink (cold well) depending on the season. We consider...
journal article 2018
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Boersma, S. (author), Rostampour, Vahab (author), Doekemeijer, B.M. (author), van Geest, W.J.M. (author), van Wingerden, J.W. (author)
The objective of active power control in wind farms is to provide ancillary grid services. Improving this is vital for a smooth wind energy penetration in the energy market. One of these services is to track a power reference signal with a wind farm by dynamically de- and uprating the turbines. In this paper we present a computationally...
conference paper 2018
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Rostampour, Vahab (author), Keviczky, T. (author)
This paper presents an approach to distributed stochastic model predictive control (SMPC) of large-scale uncertain linear systems with additive disturbances. Typical SMPC approaches for such problems involve formulating a large-scale finite-horizon chance-constrained optimization problem at each sampling time, which is in general non-convex...
conference paper 2018
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Boersma, S. (author), Rostampour, Vahab (author), Doekemeijer, B.M. (author), van Wingerden, J.W. (author), Keviczky, T. (author)
In this paper, we present an implementation of a model predictive controller (MPC) for wind farm power tracking problem. The controller is evaluated in the high-fidelity PAral-lelized Large-eddy simulation Model (PALM). By taking measurements from PALM, we show that the closed-loop MPC can provide power reference tracking while reducing force...
journal article 2018
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Rostampour, Vahab (author), Ferrari, Riccardo M.G. (author), Teixeira, André M.H. (author), Keviczky, T. (author)
Distributed fault diagnosis has been proposed as an effective technique for monitoring large scale, nonlinear and uncertain systems. It is based on the decomposition of the large scale system into a number of interconnected subsystems, each one monitored by a dedicated Local Fault Detector (LFD). Neighboring LFDs, in order to successfully...
journal article 2018
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Rostampour, Vahab (author), Ferrari, Riccardo M.G. (author), Keviczky, T. (author)
Traditional deterministic robust fault detection threshold designs, such as the norm-based or limit-checking method, are plagued by high conservativeness, which leads to poor fault detection performance. On one side they are ill-suited at tightly bounding the healthy residuals of uncertain nonlinear systems, as such residuals can take values...
conference paper 2017
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Rostampour, Vahab (author), Bloemendal, Martin (author), Keviczky, T. (author)
This paper presents a complete model of a building heating and cooling equipment and a ground source heat pump (GSHP) coupled with an aquifer thermal energy storage (ATES) system. This model contains detailed<br/>mathematical representations of building thermal dynamics, ATES system dynamics, heat exchanger (HE), and GSHP together with heating...
conference paper 2017
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Bloemendal, Martin (author), Jaxa-Rozen, M. (author), Rostampour, Vahab (author)
The application of seasonal Aquifer Thermal Energy Storage (ATES) contributes to meet goals for energy savings and greenhouse gas (GHG) emission reductions. Heat pumps have a crucial position in ATES systems because they dictate the operation scheme of the ATES wells and therefore play an important role in utilizing the storage potential of the...
conference paper 2017
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Bloemendal, Martin (author), Jaxa-Rozen, M. (author), Rostampour, Vahab (author)
other 2017
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Jaxa-Rozen, M. (author), Rostampour, Vahab (author), Herrera, Eunice (author), Bloemendal, Martin (author), Kwakkel, J.H. (author), Keviczky, T. (author)
Aquifer Thermal Energy Storage (ATES) is an innovative building technology that can be used to store thermal energy in natural subsurface formations [1, 4, 10]. In combination with a heat pump, ATES can reduce the energy demand of larger buildings by more than half, which has made the technology increasingly popular in northern Europe (see...
conference paper 2017
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Rostampour, Vahab (author), Keviczky, T. (author)
In this paper, we present an energy management framework for building climate comfort systems that are interconnected in a grid via aquifer thermal energy storage (ATES) systems in the presence of two types of uncertainty namely private and common uncertainty sources. The ATES system is considered as a large-scale storage system that can be a...
journal article 2017
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Rostampour, Vahab (author), Bloemendal, Martin (author), Jaxa-Rozen, M. (author), Keviczky, T. (author)
This paper presents a control-oriented model for combined building climate comfort and aquifer thermal energy storage (ATES) system. In particular, we first provide a description of building operational systems together with control framework variables. We then focus on the derivation of an analytical model for ATES system dynamics. The dynamics...
conference paper 2016
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