J. Circuits Syst. Comput.最新文献_第7页

Urban Digital Transformation and Enterprise Personal Data Protection 城市数字化转型与企业个人数据保护

J. Circuits Syst. Comput. Pub Date : 2022-12-06 DOI: 10.1142/s0218126623501803

Wanyi Chen, Luqi Miao

引用次数: 1

Impact of Negative Solar Resistance on DC Microgrid Stability: Virtual Damping Voltage and Current Solar Droop Emulated Controller 太阳能负电阻对直流微电网稳定性的影响:虚拟阻尼电压和电流太阳能下垂仿真控制器

J. Circuits Syst. Comput. Pub Date : 2022-12-05 DOI: 10.1142/s0218126623501268

M. Yadav, Navdeep Singh

{"title":"Impact of Negative Solar Resistance on DC Microgrid Stability: Virtual Damping Voltage and Current Solar Droop Emulated Controller","authors":"M. Yadav, Navdeep Singh","doi":"10.1142/s0218126623501268","DOIUrl":"https://doi.org/10.1142/s0218126623501268","url":null,"abstract":"The negative solar resistance, is highly dependent on the solar operating point. The system will become sluggish and unstable during low irradiance. It is reported that the impact of negative solar resistance is nullified by parallel impedance emulated condition (PIEC). During low irradiance, the system stability has been moved to an unstable position which is not fully resolved by PIEC. In this paper, a virtual inertia-damping voltage and current solar droop emulated controller is proposed to improve the voltage oscillation profile, inertia problem and damping of the DC microgrid system. In DC microgrids, the inherent inertia from DC capacitors is low, thus affecting the bus voltage oscillation during a reduction of irradiance. The oscillation of the system has been increased due to the equivalent impedance by negative solar resistance at lower irradiance. Oscillation’s issue and voltage instability of the PV system have been enhanced by the inner current controller. In addition, the steady-state error of the PV voltage is minimized by the virtual inertia-damping voltage restoration droop controller with PIEC. Performance analysis and dynamic characteristics are discussed through a pole-zero plot for the various conditions of negative solar resistance using virtual inertia-damping voltage and current Solar Droop Emulated Controller. This paper focuses on stability analysis to strengthen the DC microgrid. The performance of the solar controller with bidirectional converter (BDC) controller has been discussed to verify the power management between the system to manage the power for the unbalanced load.","PeriodicalId":14696,"journal":{"name":"J. Circuits Syst. Comput.","volume":"25 1","pages":"2350126:1-2350126:28"},"PeriodicalIF":0.0,"publicationDate":"2022-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84121156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of RF-Photonic System for Automatic Targets' Nonlinear Rotational/Flapping/Gliding Signatures Imaging Applications 用于自动目标非线性旋转/扑动/滑动特征成像的射频光子系统的研制

J. Circuits Syst. Comput. Pub Date : 2022-12-02 DOI: 10.1142/s0218126623501311

N. Akhter, H. Kumawat, A. A. B. Raj

{"title":"Development of RF-Photonic System for Automatic Targets' Nonlinear Rotational/Flapping/Gliding Signatures Imaging Applications","authors":"N. Akhter, H. Kumawat, A. A. B. Raj","doi":"10.1142/s0218126623501311","DOIUrl":"https://doi.org/10.1142/s0218126623501311","url":null,"abstract":"Nowadays, developing the radio frequency (RF)-photonic sensors suitable for several Defence and civil applications is emerging due to its various unique advantages. In today’s scientific world, the involvement of low radar cross-section (RCS) airspace targets, such as unman aerial vehicles, drones, mini-helicopters, ornithopters, bionic birds, etc., is more for the purpose of airspace traffic management/guidance, materials delivery, legal/illegal surveillance and Defence/offense applications. The detection and recognition of such targets using the conventional RF sensors (which process only the main Doppler) is almost impossible. Therefore, extracting the distinctive micro-Doppler (m-D) signatures of these low-RCS targets and using them to image/differentiate/recognize their postures become significant which is the main contribution in this paper. A C-band continuous wave RF-photonic sensor is developed and different low-RCS targets: 2/3 blades rotating propeller system (drones), cone like structure (warhead) and a bionic-bird (spy-bird); are operated in front of it. The different nonlinear postures, of these targets, covered in our experimental measurements are m-D extraction of a slowly moving propeller system, detection of back-and-forth movements of a rotational propeller system, discerning the moving and static rotational propeller systems, simultaneous extraction of m-D signatures of a rotational and moving targets and recognition of flapping/gliding motions of bionic-bird. The analysis and recognition of all these postures using the experimentally generated m-D signatures are described.","PeriodicalId":14696,"journal":{"name":"J. Circuits Syst. Comput.","volume":"164 1","pages":"2350131:1-2350131:26"},"PeriodicalIF":0.0,"publicationDate":"2022-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86162841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

An Integrated XI-UNet for Accurate Retinal Vessel Segmentation

J. Circuits Syst. Comput. Pub Date : 2022-12-02 DOI: 10.1142/s0218126623501827

Vinodhini C Aruna, S. Sabena

引用次数: 0

Wireless Communication for Drilling Using Acoustic Wave Based on MIMO-OFDM 基于MIMO-OFDM的声波钻井无线通信

J. Circuits Syst. Comput. Pub Date : 2022-12-01 DOI: 10.1142/s0218126623501773

Yanfeng Geng, Zhong Zheng

引用次数: 0

Tree Social Relations Optimization-Based ReLU-BiLSTM Framework for Improving Video Quality in Video Compression 基于树社会关系优化的ReLU-BiLSTM框架在视频压缩中提高视频质量

J. Circuits Syst. Comput. Pub Date : 2022-12-01 DOI: 10.1142/s0218126623501797

K. Sivakumar, S. Sasikumar, M. Krishnamurthy

引用次数: 0

An Efficient Channel Attention-Enhanced Lightweight Neural Network Model for Metal Surface Defect Detection 金属表面缺陷检测中一种有效的通道关注增强轻量级神经网络模型

J. Circuits Syst. Comput. Pub Date : 2022-12-01 DOI: 10.1142/s0218126623501785

XiKun Xie, Changjiang Li, Yang Liu, Junjie Song, Jonghyun Ahn, Zhonghao Zhang

引用次数: 1

Novel Critical Gate-Based Circuit Path-Level NBTI-Aware Aging Circuit Degradation Prediction 一种新的基于临界门电路路径级nbti感知的老化电路退化预测方法

J. Circuits Syst. Comput. Pub Date : 2022-12-01 DOI: 10.1142/s021812662350175x

Hui Xu, Rui Zhu, Xia Sun, Xianjin Fang, Pan Qi, Huaguo Liang, Zhengfeng Huang

引用次数: 0

A Space-Efficient Universal and Multi-Operative Reversible Gate Design Based on Quantum-Dots 基于量子点的空间高效通用多操作可逆门设计

J. Circuits Syst. Comput. Pub Date : 2022-11-30 DOI: 10.1142/s0218126623501669

Saeid Seyedi, N. J. Navimipour

引用次数: 0

A Novel Random Number Generator and Its Application in Sound Encryption Based on a Fractional-Order Chaotic System 一种新的随机数发生器及其在分数阶混沌系统声音加密中的应用

J. Circuits Syst. Comput. Pub Date : 2022-11-25 DOI: 10.1142/s021812662350127x

Ö. Akmese

引用次数: 0