Building electronic devices on ubiquitous paper substrates has recently drawn extensive attention due to its light weight, low cost, environmental friendliness, and ease of fabrication. Recently, a myriad advancements have been made improve the performance electronics for various applications, such as basic components, energy storage devices, generators, antennas, circuits. This review aims summarize this progress discuss different perspectives well remaining challenges yet be overcome in...

<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> This paper proposes a new frequency-domain modular-terminal-behavioral (MTB) modeling approach for characterizing conducted electromagnetic interference (EMI) noise sources in converter. It models the EMI emission of switching device module under specific conditions using three-terminal equivalent Norton network, which can be extracted from standard test. Experiments show that MTB model used to...

Intelligent reflecting surface (IRS) is considered as an enabling technology for future wireless communication systems since it can intelligently change the environment to improve performance. In this paper, IRS-enhanced wideband multiuser multi-input single-output orthogonal frequency division multiplexing (MU-MISO-OFDM) system investigated. We aim jointly design transmit beamformer and reflection of IRS maximize average sum-rate over all subcarriers. With aid relationship between...

With the integration of large-scale wind farms, conventional pilot protection is facing new challenges. It suffers from performance degradation can even refuse operation for some extreme fault scenarios. To address this problem, article continues research novel based on cosine similarity. The pickup setting and industrial application testing investigated. functional structure described logic similarity evaluated under different Compared with differential protection, proposed greatly improve...

Fault characteristics analysis normally provides a theoretical foundation for the protection design. Although conventional fault of inverter-interfaced renewable energy sources (IIRESs) can characterize post-fault steady-state at power frequency, it might not effectively present transient. This negatively affect based on transient data within 20–30 ms after grid fault. Thus, IIRESs needs to be fully investigated. Given this, nonlinear effect controller saturation is considered in this study....

The accurate analytical fault analysis model of the emerging inverter-interfaced renewable energy sources (IIRESs) is an important basis for protection power system with RESs. However, factors dynamic characteristics control (DCCS) such as controller saturation and phase-locked loop (PLL) dynamics have rarely been simultaneously studied in existing models IIRESs. As a result, can hardly be guaranteed. To address this issue, paper proposes IIRESs taking DCCS into account to characterize...

This paper proposes a faulted line-section location method using sparse meters for the distribution networks (DNs) with high penetration of inverter interfaced distributed generations (IIDGs). By modeling IIDGs as equivalent impedances instead current sources, fault component model DN can be transferred from multi-current feeding system towards sole-current system. On this basis, Bayesian Compressed Sensing (BCS) algorithm is applied to achieve solution indicate line-section. Moreover,...

Intelligent reflecting surface (IRS)has emerged as a promising solution to enhance wireless information transmissions by adaptively controlling prorogation environment. Recently, the brand-new concept of utilizing IRS implement passive transmitter attracts researchers' attention since it potentially realizes low-complexity and hardware-efficient transmitters multiple-input single/multiple-output (MISO/MIMO)systems. In this paper we investigate problem precoder design for low-resolution...

Short-circuit current analysis, especially transient calculation, provides a basis for protection design. Because the control systems of inverter-interfaced renewable energy sources have high degree nonlinearity, it is difficult to analyze current. To address this issue, in work, nonlinear differential equation symmetrical fault derived while considering saturation characteristics loop. Aiming at solution equation, an analysis method based on phase plane proposed, which makes use linear...

Buffer overflow vulnerability is the most common and serious type of in software today, as network security issues have become increasingly critical. To alleviate threat, many mining methods based on static dynamic analysis been developed. However, current problems regarding high computational time, low test efficiency, accuracy, versatility. This paper proposed a buffer prediction method by using metrics decision tree algorithm. First, were extracted from source code, data stream at...

Multi-user interference (MUI) is usually considered to be a harmful component in wireless communications. However, recently emerged symbol-level precoding techniques can constructively exploit the MUI by transforming it into useful signal at receiver and contribute symbol detection. This paper adopts this concept aims investigate exploitation of enhance both physical layer security against eavesdropping quality legitimate transmissions. Particularly, we consider problem secure multi-user...

To adapt to the operation under asymmetric conditions, an increasing number of grid-following inverter-interfaced renewable energy sources (IIRESs) start employ decoupled sequence control (DSC). However, due variety and complexity positive negative components calculation (PNSCC) modes used for DSC, fault response IIRESs with DSC has rarely been studied using analytical method. this end, article proposes a Laplace domain modeling method investigate characteristics DSC. The high-order coupling...

This paper proposes a new frequency-domain electromagnetic interference (EMI) noise prediction method for switching power converters with variable operating conditions such as DC-AC converters. work presents practical and efficient approach that is based on an EMI Thevenin equivalent source model (TEFSM) developed at one period. The methods both differential-mode (DM) common-mode (CM) are studied. methodology verified by simulations experiments using half-bridge converter. can be applied to...

LiNi0.5Mn1.5O4 (LNMO) cathode has drawn enormous interest for its extraordinarily high voltage and low cost. However, a leads to critical side reactions significantly degrading the cycling stability safety, which will be accelerated by temperature. Graphene coating been demonstrated valid method tackle these problems mentioned above. enhancements mechanism on remains unclear. Thus, we meticulously constructed hybrid sphere-nanorod-like micro-nanostructured LNMO/graphene composites deeply...

This paper describes the structure, control, and performance of a novel concept wind turbine with planetary gearbox. The power extracted from is split into two parts by free-running major part delivered to synchronous generator that directly connected grid without any electronic devices. Only very small servo machine controlled small-scale back-to-back converter. operates sun gear In order show variable speed operation maximum point tracking at both low high speed, test bench constructed...

The detailed model parameters are fundamental to fault characteristics analysis and protection design. Accurate acquisition of inverter controller is essential analyze the transient Inverter Interface Renewable Energy Sources (IIRESs). However, it challenging identify using three-phase current owing coupling relationship between phase-locked loop (PLL) inner loop. Given this, IIRESs considering non-linear different control loops investigated. A dynamic response difference-based parameter...