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This paper proposes a novel two-layer Volt/VAR control (VVC) framework to regulate the voltage profiles across an unbalanced active distribution system, which achieves both the efficient open-loop optimization and accurate closed-loop…

Systems and Control · Electrical Eng. & Systems 2019-12-25 Yifei Guo , Qianzhi Zhang , Zhaoyu Wang , Fankun Bu , Yuxuan Yuan

This paper proposes a Low-Power, Energy Efficient 4-bit Binary Coded Decimal (BCD) adder design where the conventional 4-bit BCD adder has been modified with the Clock Gated Power Gating Technique. Moreover, the concept of DVT (Dual-vth)…

Hardware Architecture · Computer Science 2016-11-18 Dipankar Saha , Subhramita Basak , Sagar Mukherjee , C. K. Sarkar

Emergency control, typically such as under-voltage load shedding (UVLS), is broadly used to grapple with low voltage and voltage instability issues in practical power systems under contingencies. However, existing emergency control schemes…

Systems and Control · Electrical Eng. & Systems 2021-02-26 Ying Zhang , Meng Yue , Jianhui Wang

The performance of active disturbance rejection control (ADRC) algorithms can be limited in practice by high-frequency measurement noise. In this work, this problem is addressed by transforming the high-gain extended state observer (ESO),…

Systems and Control · Electrical Eng. & Systems 2021-02-05 Krzysztof Łakomy , Rafal Madonski , Bin Dai , Jun Yang , Piotr Kicki , Maral Ansari , Shihua Li

In frequency-division duplex (FDD) massive multiple-input multiple-output (MIMO) systems, the growing number of base station antennas leads to prohibitive feedback overhead for downlink channel state information (CSI). To address this…

Signal Processing · Electrical Eng. & Systems 2024-06-25 Yifan Ma , Hengtao He , Shenghui Song , Jun Zhang , Khaled B. Letaief

Many components used in signal processing and communication applications, such as power amplifiers and analog-to-digital converters, are nonlinear and have a finite dynamic range. The nonlinearity associated with these devices distorts the…

Information Theory · Computer Science 2014-10-29 Kai Ying , Zhenhua Yu , Robert J. Baxley , G. Tong Zhou

In the past 10 years, two design innovations, the introduction of low internal gain (LGAD) and of resistive read-out (RSD), have radically changed the performance of silicon detectors. The LGAD mechanism, increasing the signal-to-noise…

Conservation voltage reduction(CVR) uses Volt-VAR optimization(VVO) methods to reduce customer power demand by controlling the feeders' voltage control devices. The objective of this paper is to present a VVO approach that controls the…

Optimization and Control · Mathematics 2019-12-10 Rahul Ranjan Jha , Anamika Dubey , Chen-Ching Liu , Kevin P. Schneider

The Low-Level RF (LLRF) control circuits of linear accelerators (LINACs) are conventionally realized with heterodyne based architectures, which have analog RF mixers for up and down conversion with discrete data converters. We have…

Accelerator Physics · Physics 2024-08-23 Chao Liu , Ryan Herbst , Larry Ruckman , Emilio Nanni

This paper presents a novel approach to robust load disturbance rejection in DC-DC Buck converters. We propose a novel control scheme based on the design of two nested feedback loops. First, we design the controller in the outer loop using…

Systems and Control · Electrical Eng. & Systems 2025-09-03 Simone Pirrera , Francesco Gabriele , Davide Lena , Fabio Pareschi , Diego Regruto , Gianluca Setti

Active power oscillations frequently arise in inverter-dominated power systems with multiple converters operating under Virtual Synchronous Generator control, posing risks to system stability and protection coordination. While various…

Systems and Control · Electrical Eng. & Systems 2025-09-29 Junjie Xiao , Lu Wang , Xiong Du , Pedro Rodriguez , Zian Qin

A new approach was developed for the design of front-end circuits for semiconductor radiation detectors. The readout scheme consists of a first stage made of only a few components located close to the detector, and of a remote second stage…

Instrumentation and Detectors · Physics 2014-09-02 L. Cassina , C. Cattadori , A. Giachero , C. Gotti , M. Maino , G. Pessina

Integrating massive multiple-input multiple-output (mMIMO) systems with intelligent reflecting surfaces (IRS) presents a promising paradigm for enhancing physical-layer security (PLS) in wireless communications. However, deploying…

Signal Processing · Electrical Eng. & Systems 2026-02-17 Weijie Xiong , Jian Yang , Jingran Lin , Hongli Liu , Zhiling Xiao , Qiang Li

Three generations of full-custom analog integrated circuits designed for low-power, high-speed sampling of Radio-Frequency (RF) transients in excess of the Nyquist minimum have been developed. These 0.25$\mu m$ CMOS devices are denoted the…

Instrumentation and Detectors · Physics 2008-11-26 G. S. Varner , L. L. Ruckman , J. W. Nam , R. J. Nichol , J. Cao , P. W. Gorham , M. Wilcox

Conventional electrical fault models, which rely on static thresholds and instantaneous trip mechanisms, fail to capture the time-evolving dynamics of real faults, creating vulnerabilities in modern power systems. This paper introduces a…

Systems and Control · Electrical Eng. & Systems 2025-12-30 Alex Mwololo Kimuya , Dickson Mwenda Kinyua

Dynamic comparators are the core of high-speed, high-resolution analog-to-digital converters (ADCs) used for communication applications. Most of the dynamic comparators attain high-speed operation only for sufficiently high input difference…

Systems and Control · Electrical Eng. & Systems 2024-01-11 Komala Krishna , Nandakumar Nambath

This paper presents a compact low-power, low-noise bioamplifier for multi-channel electrode arrays, aimed at recording action potentials. The design we put forth attains a notable decrease in both size and power consumption. This is…

The updated physical layer standard of the fifth generation wireless communication suggests the necessity of a rapid prototyping platform. To this end, we develop RaPro, a multi-core general purpose processor-based massive…

Signal Processing · Electrical Eng. & Systems 2018-02-23 Xuanxuan Gao , Zhichao Huang , Xintong Lu , Senjie Zhang , Chao-Kai Wen , Shi Jin

Advances in power electronics have made it possible to achieve high power levels, e.g., reaching GW in grids, or alternatively high output bandwidths, e.g., beyond MHz in communication. Achieving both simultaneously, however, remains…

Signal Processing · Electrical Eng. & Systems 2023-09-13 Jinshui Zhang , Boshuo Wang , Xiaoyang Tian , Angel Peterchev , Stefan Goetz

In this work, a 3.5 GS/s voltage-controlled oscillator (VCO) analog-to-digital converter (ADC) using multi-stage noise shaping (MASH) is presented. This 28nm CMOS ADC achieves second-order noise shaping in an easily-scalable, open-loop…

Systems and Control · Electrical Eng. & Systems 2024-09-24 Brendan Saux , Jonas Borgmans , Johan Raman , Pieter Rombouts