2020 IEEE Energy Conversion Congress and Exposition (ECCE)最新文献_第3页

Distributed Average Observation in Inverter Dominated Dynamic Microgrids 逆变器主导动态微电网的分布平均观测

2020 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2020-10-11 DOI: 10.1109/ECCE44975.2020.9235857

Yuhua Du, Xiaonan Lu, Bo Chen, Jianzhe Liu, Xiongfei Wang, F. Blaabjerg

{"title":"Distributed Average Observation in Inverter Dominated Dynamic Microgrids","authors":"Yuhua Du, Xiaonan Lu, Bo Chen, Jianzhe Liu, Xiongfei Wang, F. Blaabjerg","doi":"10.1109/ECCE44975.2020.9235857","DOIUrl":"https://doi.org/10.1109/ECCE44975.2020.9235857","url":null,"abstract":"Consensus-based distributed average observation has been widely used in decentralized coordination among distributed generators (DGs) in inverter-based autonomous microgrids (MGs). However, its observation accuracy suffers from communication delays. Such observation errors are hard to detect and could deviate the system operation states (e.g., DG operating voltage) from their desired references. This work quantifies the relationship between communication delays and the steady-state observation errors of the delayed dynamic consensus algorithm. It is worth mentioning that system under study operates autonomously in the context of dynamic MGs. Compared to conventional MGs, dynamic MGs operate with reconfigurable cyber-physical networks. The observation errors are minimized by adopting the optimal system topology through cyber-physical network reconfiguration. Detailed control diagrams are designed to observe the average DG operating voltage in the physical networks, while measurements and control references are exchanged with communication delays through the cyber network. The proposed reconfiguration approach along with detailed controller designs are validated on a 12-bus test system in Simulink/MATLAB.","PeriodicalId":433712,"journal":{"name":"2020 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123661248","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

Grid-forming converters: an overview of control approaches and future trends 网格形成转换器:控制方法和未来趋势概述

2020 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2020-10-11 DOI: 10.1109/ECCE44975.2020.9236211

Roberto Rosso, Xiongfei Wang, Marco Liserre, Xiaonan Lu, Soenke Engelken

引用次数: 30

Multifrequency Vibration Suppression of Magnetic Bearing Systems Applied Variable Step-size Automatic Learning Control 应用变步长自动学习控制的磁轴承系统多频振动抑制

2020 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2020-10-11 DOI: 10.1109/ECCE44975.2020.9235914

Hongbo Sun, Dong Jiang, Jianfu Ding, Jichang Yang

{"title":"Multifrequency Vibration Suppression of Magnetic Bearing Systems Applied Variable Step-size Automatic Learning Control","authors":"Hongbo Sun, Dong Jiang, Jianfu Ding, Jichang Yang","doi":"10.1109/ECCE44975.2020.9235914","DOIUrl":"https://doi.org/10.1109/ECCE44975.2020.9235914","url":null,"abstract":"Active Magnetic Bearing (AMB) has been widely applied in occasions acquire high-speed rotating, high-precision machining, and so on. The AMB can provide active control force to offset centrifugal force and other disturbance to suppress vibration while rotating. This paper proposed a strategy to compensate vibration in AMB system based on Variable Step-size Automatic Learning Control (VALC). Firstly, a two degrees of freedom model of radial AMB is established. Phase error between of centrifugal force and synchronous vibration is analyzed. Then, principle and process of VALC is introduced. A generalized notch filter is applied to obtain synchronous and harmonic vibration. Next, simulations are carried out based on AMB control system applied VALC. The results of simulations show the feasibility of the compensating strategy. Experiments to reduce synchronous and harmonic vibration based on VALC are carried out on a test rig. Spectrums of vibration signals show that vibration is reduced by about 90%, which demonstrates the effectiveness of proposed strategy for vibration compensation.","PeriodicalId":433712,"journal":{"name":"2020 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123768831","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: 2

A Novel Multi-Physical Coupled Model of Press-Pack IGBT in Steady Conducting State Considering Fretting Wear 考虑微动磨损的压包式IGBT稳态多物理耦合模型

2020 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2020-10-11 DOI: 10.1109/ECCE44975.2020.9235636

C. Zhan, Lingyu Zhu, Jiangang Dai, Ting Hou

{"title":"A Novel Multi-Physical Coupled Model of Press-Pack IGBT in Steady Conducting State Considering Fretting Wear","authors":"C. Zhan, Lingyu Zhu, Jiangang Dai, Ting Hou","doi":"10.1109/ECCE44975.2020.9235636","DOIUrl":"https://doi.org/10.1109/ECCE44975.2020.9235636","url":null,"abstract":"The finite element model of press-pack IGBT (PPI) in steady conducting state is significant for its reliability improvement research. The models in the previous literature are not able to realize the fully coupled relationship in the consideration of device aging status and the chip surface roughness. In this paper, a novel multi-physical filed coupled model of PPI considering fretting wear is proposed. This model realizes the coupled of the electrical, thermal and mechanical model through contact resistance. The influence of contact pressure is not necessary to be taken into consideration in the coupled model so that contact resistance only determinates by the surface roughness. Under the utilization of the empirical formula of the contact thermal and electrical resistance in the multi-physical filed coupled model, it is more correct to obtain the junction temperature and pressure distribution under various surface roughness. The observed cracks and the fretting wear phenomenon on the chip surface after power cycling test verify the correctness of the coupled model. The proposed model is meaningful in researching the reliability improvement of PPI.","PeriodicalId":433712,"journal":{"name":"2020 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125287209","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: 2

Loss Model and Output Impedance Analysis of a 48V-to-1V High Current Point-of-Load Converter 48v - 1v大电流点负载变换器的损耗模型和输出阻抗分析

2020 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2020-10-11 DOI: 10.1109/ECCE44975.2020.9235796

A. Fiore, Qingyun Huang, A. Huang

引用次数: 1

Distributed Averaging Optimization-based Technique for Microgrid Secondary Control 基于分布式平均优化的微电网二次控制技术

2020 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2020-10-11 DOI: 10.1109/ECCE44975.2020.9235988

Fahad H. Alshammari, A. El-Refaie

{"title":"Distributed Averaging Optimization-based Technique for Microgrid Secondary Control","authors":"Fahad H. Alshammari, A. El-Refaie","doi":"10.1109/ECCE44975.2020.9235988","DOIUrl":"https://doi.org/10.1109/ECCE44975.2020.9235988","url":null,"abstract":"In this paper, we present a distributed averaging optimization-based controller for secondary control of islanded microgrid. In islanded mode, grid-forming units collaborate to maintain the voltage and frequency of the microgrid through droop control. However, traditional droop control suffers from poor reactive power sharing due to voltage drop in the lines. Therefore, secondary control interferes to improve power sharing in addition to restore the voltage and frequency errors produced by droop control. The proposed controller seeks minimum inconsistency of power sharing among units while keeping the frequency at its nominal value and the terminal voltage within allowable tolerance i.e. ±5% of its nominal value. The active and reactive power sharing are communicated through low frequency peer-to-peer communication channel and the average value is calculated locally. A convex optimization function is utilized to minimize the difference of power sharing among grid-forming units. The optimization function is implemented using CVX/CVXGEN and embedded in the control system in real-time on a discrete basis over a time horizon of one second. The controller is validated through simulation using MATLAB/SIMULINK. In addition, plug-and-play capability is tested for the proposed controller.","PeriodicalId":433712,"journal":{"name":"2020 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"180 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127003920","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

Resonance Suppression based on Predictive Control of Grid-following Inverters with LCL Filter in Weak Grid Condition 弱电网条件下基于LCL滤波器的随网逆变器预测控制谐振抑制

2020 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2020-10-11 DOI: 10.1109/ECCE44975.2020.9235660

Muhammad F. Umar, Ahmad Khan, Mitchell Easley, Silvanus D’silva, Brevann Nun, M. Shadmand

{"title":"Resonance Suppression based on Predictive Control of Grid-following Inverters with LCL Filter in Weak Grid Condition","authors":"Muhammad F. Umar, Ahmad Khan, Mitchell Easley, Silvanus D’silva, Brevann Nun, M. Shadmand","doi":"10.1109/ECCE44975.2020.9235660","DOIUrl":"https://doi.org/10.1109/ECCE44975.2020.9235660","url":null,"abstract":"This paper presents an effective resonance suppression control when grid interactive inverter with LCL filter experience weak grid conditions. The resonance suppression mechanism is based on finite-set model predictive control (FS- MPC) with adaptive cost function to alter the controller objectives seamlessly. The large parasitic impedance and low short circuit ratio (SCR) of weak grid challenges the operation of grid- connected inverters. Specifically, the LCL filter resonance may get excited, resulting in collapse of the inverter operation. To address this issue, an effective active damping approach is implemented in the proposed control. In the proposed active damping scheme for resonance suppression, the feedback currents are switched based on the operating conditions of inverter. During the stiff grid conditions, grid current serves as feedback to the controller. While in the weak grid conditions, the inverter current is selected as feedback signal. The toggling action between these two feedback currents is determined by comparing moving RMS of grid current with threshold current as constraint in the cost function of the proposed MPC scheme. The threshold current for toggling action is based on the reference active and reactive power setpoints plus an acceptable band of variation. The theoretical analysis is verified by several case studies.","PeriodicalId":433712,"journal":{"name":"2020 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115096815","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: 3

Active Disturbance Rejection Control of Synchronous Reluctance Motors 同步磁阻电动机的自抗扰控制

2020 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2020-10-11 DOI: 10.1109/ECCE44975.2020.9236050

A. Accetta, M. Cirrincione, F. D’Ippolito, M. Pucci, A. Sferlazza

引用次数: 0

Dual State - Parameter Estimation for Series Arc Fault Detection on a DC Microgrid 直流微电网串联电弧故障检测的双状态参数估计

2020 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2020-10-11 DOI: 10.1109/ECCE44975.2020.9235753

K. Gajula, Xiu Yao, L. Herrera

引用次数: 3

Position Sensorless PMSM Drive for Solar PV-Battery Light Electric Vehicle with Regenerative Braking Capability 具有再生制动能力的太阳能光伏电池轻型电动车无位置传感器永磁同步电机驱动

2020 IEEE Energy Conversion Congress and Exposition (ECCE) Pub Date : 2020-10-11 DOI: 10.1109/ECCE44975.2020.9236086

S. R, Bhim Singh

引用次数: 6