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Xu, J. (author), Soeiro, Thiago B. (author), Wu, Y. (author), Gao, Fei (author), Wang, Y. (author), Tang, Houjun (author), Bauer, P. (author)A three-phase buck-type rectifier features a step-down ac-dc conversion function, which is considered as a prominent solution for electric vehicle chargers and telecommunication systems integrated to the grid above 380 V line to line. However, traditional solutions for those applications employ cascaded architectures with an ac-dc boost-type...journal article 2022
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Sharif, B. (author), van der Maas, A. (author), van de Wouw, N. (author), Heemels, W. P.M.H. (author)The filtered split-path nonlinear integrator (F-SPANI) is a generic nonlinear controller designed to improve the transient performance of linear (motion) systems in terms of overshoot. The main idea underlying F-SPANI is that the amplitude and phase of an integrator can be tuned using independent filters, resulting in more efficient use of...journal article 2022
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Wu, Chengwei (author), Yao, Weiran (author), Pan, W. (author), Sun, Guanghui (author), Liu, Jianxing (author), Wu, Ligang (author)This article investigates the secure control problem for cyber-physical systems when the malicious data are injected into the cyber realm, which directly connects to the actuators. Based on moving target defense (MTD) and reinforcement learning, we propose a novel proactive and reactive defense control scheme. First, the system (A,B) is...journal article 2021
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Ferrari, Riccardo M.G. (author), Teixeira, Andre M.H. (author)This article addresses the detection of stealthy attacks on sensor measurements. Inspired in authentication schemes with weak cryptographic guarantees, we propose a watermarking approach to validate the data and its source. In particular, we propose a multiplicative scheme, where the sensor outputs are watermarked by a bank of filters, then...journal article 2021
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Patel, Abhilash (author), Roy, Spandan (author), Baldi, S. (author)By increasingly relying on network-based operation for control, monitoring, and protection functionalities, modern wide-area power systems have also become vulnerable to cyber-attacks aiming to damage system performance and/or stability. Resilience in state-of-the-art methods mostly relies on known characteristics of the attacks and static...journal article 2021
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Tao, T. (author), Roy, S. (author), Baldi, S. (author)Multi-area load frequency control (LFC) selects and controls a few generators in each area of the power system in an effort to dampen inter-area frequency oscillations. To effectively dampen such oscillations, it is required to enhance and lower the control activity dynamically during operation, so as to adapt to changing circumstances....journal article 2021
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Lv, Maolong (author), Yu, Wenwu (author), Cao, Jinde (author), Baldi, S. (author)This work investigates the consensus tracking problem for high-power nonlinear multiagent systems with partially unknown control directions. The main challenge of considering such dynamics lies in the fact that their linearized dynamics contain uncontrollable modes, making the standard backstepping technique fail; also, the presence of mixed...journal article 2020
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Pan, S. (author), Makinwa, K.A.A. (author)Temperature sensors intended for embedded applications should be both energy-and area-efficient. The combination of Wheatstone-bridge (WhB) sensors and continuous-time ADCs has proven to be highly energy efficient [1], [2]. However, their area (> 0.25 mm{2}) is still larger than that of comparable BJT-based sensors [3], [4]. This paper...conference paper 2019
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Rooijers, C.T. (author), Huijsing, J.H. (author), Makinwa, K.A.A. (author)The readout of high-impedance sensors and sampled voltage references [1] requires amplifiers that can achieve both low offset and low input current. Recently, it has been shown that this unique combination can be achieved by an auto-zero (AZ) stabilized buffer [2]. However, its low-frequency noise density is surd 5 times higher than the...conference paper 2019
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Roy, S. (author), Baldi, S. (author)This letter proposes a new adaptive control method for a class of nonlinearly-parametrized switched systems that includes Monod kinetics and Euler-Lagrange systems with nonlinear in parameters form as special cases. As compared to the adaptive switched frameworks proposed in literature, the proposed adaptation framework has the distinguishing...journal article 2019
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Urso, A. (author), Giagka, Vasiliki (author), Serdijn, W.A. (author)This manuscript points out some mistakes in the Introduction and in the table of comparison of a paper already published in this journal by Hsu and Schmid [1]. Although the main claim of [1] is still preserved, we believe the paper needs to be rectified for scientific correctness of the work. In [1], the first High Frequency Switched...journal article 2019
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Tan, M. (author), Chen, C. (author), Chen, Z. (author), Janjic, Jovana (author), Daeichin, V. (author), Chang, Z.Y. (author), Noothout, E.C. (author), van Soest, G. (author), Verweij, M.D. (author), de Jong, N. (author), Pertijs, M.A.P. (author)This paper presents an area- and power-efficient application-specified integrated circuit (ASIC) for 3-D forward-looking intravascular ultrasound imaging. The ASIC is intended to be mounted at the tip of a catheter, and has a circular active area with a diameter of 1.5 mm on the top of which a 2-D array of piezoelectric transducer elements is...journal article 2018
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Shipurkar, U. (author), Lyrakis, E. (author), Ma, Ke (author), Polinder, H. (author), Ferreira, Jan Abraham (author)The power electronic converter, especially the power semiconductor, is a major contributor to the failure rates of the wind turbine drivetrain. As the temperature is a major driving factor behind the failure mechanisms of these power semiconductors the choice of topology and switching strategy can have a significant effect on the reliability...journal article 2018
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Pilavaki, Evdokia (author), Valente, V. (author), Demosthenous, Andreas (author)Point-of-care systems for the detection of infectious diseases are in great demand especially in developing countries. Lateral flow immunoassays are considered ideal biosensors for point-of-care diagnostics due to their numerous advantages. However, to quantify their results a low power, robust electronic reader is needed. A low power CMOS...journal article 2018
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Khalilnezhad, H. (author), Popov, M. (author), van der Sluis, L. (author), Bos, Jorrit A. (author), de Jong, Jan P.W. (author), Ametani, Akihiro (author)Zero-missing is a phenomenon in shunt compensated cable systems in which the current through the line breaker does not cross the zero point for several cycles. This paper deals with a thorough investigation on countermeasures of the zero-missing phenomenon in transmission systems and determines the requirements, benefits, and risks of...journal article 2018
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Escudero-López, Manuel (author), Amat, Esteve (author), Rubio, Antonio (author), Pouyan, P. (author)Memristors are considered a promising emerging device that may improve some specific applications, like memories, or make feasible new ones, mainly alternative computing architectures. However, it is not a mature technology and their characteristics can vary significantly depending on their structures. Also, variability and reliability might...conference paper 2017
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de Jong, M. (author), van Deursen, A. (author), Cleve, Anthony (author)When a web service or application evolves, its database schema — tables, constraints, and indices — often need to evolve along with it. Depending on the database, some of these changes require a full table lock, preventing the service from accessing the tables under change. To deal with this, web services are typically taken offline momentarily...conference paper 2017
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Campos Martins, G. (author), Serdijn, W.A. (author)The continuous improvement in reducing the power consumption of electronic devices, including biomedical ones, makes the use of energy harvesting systems instead of batteries attractive. Conventionally, energy harvesting systems are optimized to operate in a single worst-case scenario. However, it is often the case that the available input power...conference paper 2017
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Tohidian, M. (author), Madadi, I. (author), Staszewski, R.B. (author)The zero/low intermediate frequency (IF) receiver (RX) architecture has enabled full CMOS integration. As the technology scales and wireless standards become ever more challenging, the issues related to time-varying dc offsets, the second-order nonlinearity, and flicker noise become more critical. In this paper, we propose a new architecture of...journal article 2017
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Krishna, Hedi (author), van Adrichem, N.L.M. (author), Kuipers, F.A. (author)Quality of Service (QoS) control is an important concept in computer networking, as it is related to end-user experience. While providing QoS guarantees over the Internet has long been deemed too complicated, the emergence of Software- Defined Networking (SDN), and OpenFlow as its most popular standard, may facilitate QoS control.<br/>In this...conference paper 2016