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Stochastic Learning Control Framework in the Integrated Frequency and Position Domain 集成频位域的随机学习控制框架
2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia) Pub Date : 2022-05-15 DOI: 10.23919/IPEC-Himeji2022-ECCE53331.2022.9807014
Hanul Jung, Sehoon Oh
{"title":"Stochastic Learning Control Framework in the Integrated Frequency and Position Domain","authors":"Hanul Jung, Sehoon Oh","doi":"10.23919/IPEC-Himeji2022-ECCE53331.2022.9807014","DOIUrl":"https://doi.org/10.23919/IPEC-Himeji2022-ECCE53331.2022.9807014","url":null,"abstract":"This paper proposes stochastic learning control with disturbance observer and Gaussian process to achieve the robust-ness against disturbance. Disturbance observer is designed from a frequency domain perspective to effectively remove disturbances within a desired range. The Gaussian process stochastically models disturbances that may have high frequency components in the time domain but have a definite period in the position domain. As a result, the synergy between DOB and Gaussian model improves control performance. In addition, the stability of the Gaussian model is theoretically verified and the proposed method is compared under various conditions.","PeriodicalId":256507,"journal":{"name":"2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130050663","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
The Effects of Virtual Inertia Control on Power Converters in Nonideal Grid Conditions 非理想电网条件下虚拟惯量控制对变流器的影响
2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia) Pub Date : 2022-05-15 DOI: 10.23919/IPEC-Himeji2022-ECCE53331.2022.9806895
Yan Haoxin, Tang Yi, Zhang Lei
{"title":"The Effects of Virtual Inertia Control on Power Converters in Nonideal Grid Conditions","authors":"Yan Haoxin, Tang Yi, Zhang Lei","doi":"10.23919/IPEC-Himeji2022-ECCE53331.2022.9806895","DOIUrl":"https://doi.org/10.23919/IPEC-Himeji2022-ECCE53331.2022.9806895","url":null,"abstract":"The distributed virtual inertia provided by grid-connected converters feature a promising solution for power system inertia enhancement. Although the virtual inertia control will not intentionally hurt the system performance, its effects on the converter operation in the presence of nonideal grid conditions have not been disclosed in the exiting literature. To fill this research gap, this paper targets to investigate this issue via the system output sequence impedance derived by harmonic linearization, and it is emulated that the derived impedance sufficiently matches the simulation verifications. With the PLL effects being considered, it is reaved that the virtual inertia control will greatly reduce the magnitude of system output impedance, and thus the converter injected current will be seriously distorted at the specific frequency in accordance with grid nonideal voltages, which means the grid-connected power converters with virtual inertia control are extremely sensitive to the grid nonideality.","PeriodicalId":256507,"journal":{"name":"2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130068696","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
Reduction of Input- and Output-Side Common-Mode Currents Based on a Coupled Common-Mode Inductor in DC-Fed Three-Phase Motor Drive Systems 直流三相电机驱动系统中基于耦合共模电感的输入和输出侧共模电流减小
2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia) Pub Date : 2022-05-15 DOI: 10.23919/IPEC-Himeji2022-ECCE53331.2022.9807015
Shotaro Takahashi, Sari Maekawa
{"title":"Reduction of Input- and Output-Side Common-Mode Currents Based on a Coupled Common-Mode Inductor in DC-Fed Three-Phase Motor Drive Systems","authors":"Shotaro Takahashi, Sari Maekawa","doi":"10.23919/IPEC-Himeji2022-ECCE53331.2022.9807015","DOIUrl":"https://doi.org/10.23919/IPEC-Himeji2022-ECCE53331.2022.9807015","url":null,"abstract":"This study proposes an input/output coupled passive electromagnetic interference filter (PEF) for motor drive systems. The proposed PEF is based on the conventional PEF and integrates common-mode inductors, which are connected to the input and output sides of the inverter, into a single magnetic component through magnetic coupling. First, a simplified common-mode (CM) equivalent circuit was constructed for the motor drive system. Simple analysis based on the CM equivalent circuit demonstrate that the attenuation of the conventional PEF on the input-side CM current is insignificant, and the proposed PEF can effectively reduce both the input- and output-side CM currents. Thereafter, the proposed PEF was implemented in the motor drive system, and the input- and output-side CM currents were measured to evaluate the effectiveness of the proposed PEF on the input- and output-side CM currents. The results demonstrate that the proposed PEF can effectively suppress the input- and output-side CM currents over a wide band frequency range without increasing the filter volume and number of magnetic components compared to the conventional PEF.","PeriodicalId":256507,"journal":{"name":"2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130459131","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
Submodule Capacitor Sizing for Cascaded H-Bridge STATCOM with Sum of Squares Formulation 用平方和公式确定级联h桥STATCOM子模块电容器尺寸
2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia) Pub Date : 2022-05-15 DOI: 10.23919/IPEC-Himeji2022-ECCE53331.2022.9806867
Hengyi Wang, Fei Wang, Fei Gao, Jianqiang Cheng
{"title":"Submodule Capacitor Sizing for Cascaded H-Bridge STATCOM with Sum of Squares Formulation","authors":"Hengyi Wang, Fei Wang, Fei Gao, Jianqiang Cheng","doi":"10.23919/IPEC-Himeji2022-ECCE53331.2022.9806867","DOIUrl":"https://doi.org/10.23919/IPEC-Himeji2022-ECCE53331.2022.9806867","url":null,"abstract":"This paper deals with capacitor sizing for delta-connected cascaded H-bridge (CHB) STATCOM with sum of squares formulation. Analytical expressions of capacitor voltages and branch voltages for overmodulation avoidance are developed and a geometrical method is used in order to calculate the feasible capacitance value. Design examples complete this paper.","PeriodicalId":256507,"journal":{"name":"2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133961906","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
Charging infrastructure - how to contribute to the power grid - 充电基础设施-如何为电网做出贡献-
2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia) Pub Date : 2022-05-15 DOI: 10.23919/IPEC-Himeji2022-ECCE53331.2022.9807213
Makoto Yoshida, Osamu Maruta, Tomoko Blech Yamabe, Mika Zaurin Casanova
{"title":"Charging infrastructure - how to contribute to the power grid -","authors":"Makoto Yoshida, Osamu Maruta, Tomoko Blech Yamabe, Mika Zaurin Casanova","doi":"10.23919/IPEC-Himeji2022-ECCE53331.2022.9807213","DOIUrl":"https://doi.org/10.23919/IPEC-Himeji2022-ECCE53331.2022.9807213","url":null,"abstract":"To achieve carbon neutrality, the vehicle mobility is going to be electrified by the 2030's. In the course of mobility electrification, the energy transforming device, charger and power conditioner can help power grid stabilization by smart charging and feeding energy back from the electric vehicle (V2G). This technology can also enable electric vehicles to supply energy to the shelters in the affected areas in the event of a power outage due to natural disasters. We report on the historical achievements, current tasks, and the future direction of V2G from the viewpoint of in-market experience and technical innovation for more than 10 years.","PeriodicalId":256507,"journal":{"name":"2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130787519","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
Cost-efficient Analysis of Core and PM Eddy Current Loss Considering Current Harmonics 考虑电流谐波的磁芯和永磁涡流损耗的成本效益分析
2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia) Pub Date : 2022-05-15 DOI: 10.23919/IPEC-Himeji2022-ECCE53331.2022.9807199
Jun-Yeol Ryu, Jun-Woo Chin, M. Lim
{"title":"Cost-efficient Analysis of Core and PM Eddy Current Loss Considering Current Harmonics","authors":"Jun-Yeol Ryu, Jun-Woo Chin, M. Lim","doi":"10.23919/IPEC-Himeji2022-ECCE53331.2022.9807199","DOIUrl":"https://doi.org/10.23919/IPEC-Himeji2022-ECCE53331.2022.9807199","url":null,"abstract":"The analysis of AC losses, including the core and permanent magnet (PM) eddy current losses, requires a long computational time because of the large number of analysis steps and elements for the overall consideration of current harmonics. Therefore, this paper proposes a cost-efficient analysis of the AC losses considering current harmonics. First, the permeability of all the elements at each step is obtained via a nonlinear static finite element analysis (FEA), using the fundamental component of the current. Then, the harmonics of AC losses are calculated using a linear static FEA and a two-dimensional time-harmonic T-Ω method, which are well-known for their fast computation. At each analysis step, the permeability of each element is interpolated from the obtained permeability map. The cost-efficiency of the proposed analysis is validated with a PM synchronous motor used for vehicle traction.","PeriodicalId":256507,"journal":{"name":"2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia)","volume":"214 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132270070","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
A Study on Emulated Inertia Control of Grid-Connected Inverter-Based Power Supply Sources for Mass Integration of Renewable Energy Resources 基于并网逆变器的可再生能源大规模并网电源仿真惯性控制研究
2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia) Pub Date : 2022-05-15 DOI: 10.23919/IPEC-Himeji2022-ECCE53331.2022.9807066
H. Uemura, Sachio Takano, A. Harada, Takahiro Matsuura, S. Miyazaki, H. Hamada, T. Miyazaki
{"title":"A Study on Emulated Inertia Control of Grid-Connected Inverter-Based Power Supply Sources for Mass Integration of Renewable Energy Resources","authors":"H. Uemura, Sachio Takano, A. Harada, Takahiro Matsuura, S. Miyazaki, H. Hamada, T. Miyazaki","doi":"10.23919/IPEC-Himeji2022-ECCE53331.2022.9807066","DOIUrl":"https://doi.org/10.23919/IPEC-Himeji2022-ECCE53331.2022.9807066","url":null,"abstract":"This study clarified the important elements of emulated inertia control for grid-connected inverter-based power supply sources and identified the issues to be addressed for its integration into the system. A classification framework was constructed and the emulated inertia control algorithms were classified into four types. Next, a simulation study was performed on five emulated inertia control algorithms in order to compare their effectiveness in suppressing frequency fluctuations. An emulated inertia control algorithm based on the voltage-controlled method and one based on the current-controlled method were selected from each classification type. Selected emulated inertia control algorithms were implemented on the experimental hardware of a 5 kVA inverter-based power supply, after which an experimental test was performed.","PeriodicalId":256507,"journal":{"name":"2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127846288","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
Modeling and Calculation of Grid Frequency Support Effect and Transient Energy Demand of a Virtual Synchronous Generator 虚拟同步发电机电网频率支撑效应及暂态能量需求建模与计算
2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia) Pub Date : 2022-05-15 DOI: 10.23919/IPEC-Himeji2022-ECCE53331.2022.9807198
Jia Liu, Jinjun Liu
{"title":"Modeling and Calculation of Grid Frequency Support Effect and Transient Energy Demand of a Virtual Synchronous Generator","authors":"Jia Liu, Jinjun Liu","doi":"10.23919/IPEC-Himeji2022-ECCE53331.2022.9807198","DOIUrl":"https://doi.org/10.23919/IPEC-Himeji2022-ECCE53331.2022.9807198","url":null,"abstract":"Virtual synchronous generator (VSG) is a promising control strategy of an inverter-interfaced distributed generator, owing to its ability to provide inertia support and primary frequency regulation after a grid disturbance. These new features, however, require extra transient energy, which is generally released/absorbed by energy storage (ES). To optimize the design of the ES of a VSG, it is necessary to establish a modeling and calculation method of the transient energy demand (TED) of a VSG and the corresponding maximum grid frequency deviation (MGFD) under a given grid disturbance condition. This method should take the dynamic models of both the grid and the VSG into consideration, including nonlinearity such as droop deadband. Hence, a systematical modeling method and calculation algorithm for the TED and MGFD is presented in this paper. The numerical results obtained by the proposed algorithm are well verified by simulation results from PSCAD/EMTDC. Based on this algorithm, we investigate the influence of VSG parameters on TED and MGFD, and will propose a VSG parameter optimization method to minimize the TED with a given MGFD constraint in our future work.","PeriodicalId":256507,"journal":{"name":"2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134487030","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
Double-Carrier-Based PWM Theory for Independent Power Control of Dual-Input Three-level Inverters 基于双载波PWM的双输入三电平逆变器独立功率控制理论
2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia) Pub Date : 2022-05-15 DOI: 10.23919/IPEC-Himeji2022-ECCE53331.2022.9807229
Monchai Ariyapuek, S. Suwankawin, S. Sangwongwanich, A. Sangwongwanich
{"title":"Double-Carrier-Based PWM Theory for Independent Power Control of Dual-Input Three-level Inverters","authors":"Monchai Ariyapuek, S. Suwankawin, S. Sangwongwanich, A. Sangwongwanich","doi":"10.23919/IPEC-Himeji2022-ECCE53331.2022.9807229","DOIUrl":"https://doi.org/10.23919/IPEC-Himeji2022-ECCE53331.2022.9807229","url":null,"abstract":"In this paper, double-carrier-based PWM theory for direct and independent power control for dual-input three-level inverters is proposed. With the proposed PWM strategy, the upper and lower dc bus voltages can be controlled separately in a decoupled manner. These characteristics are crucial in photovoltaic applications (PV) when tracking of maximum power points for two strings of PV panels under different irradiations is required. Independent control of input dc-bus power is achieved by simply decomposing the voltage command of the inverter in proportional to the required dc-bus power. Implementation of the proposed PWM strategy is also simple because it uses double carrier waveforms supported by PWM modules in most hardware. Effectiveness and feasibility of the proposed PWM theory are verified by experiment.","PeriodicalId":256507,"journal":{"name":"2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131422696","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 Modulation Method of Series-Resonant Dual-Active Half-Bridge Converter for ZVS and Minimum RMS current ZVS和最小有效值电流的串联谐振双有源半桥变换器调制方法
2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia) Pub Date : 2022-05-15 DOI: 10.23919/IPEC-Himeji2022-ECCE53331.2022.9807261
Jin-Su Hong, Sung-Sik Choi, Jung-Ik Ha
{"title":"A Modulation Method of Series-Resonant Dual-Active Half-Bridge Converter for ZVS and Minimum RMS current","authors":"Jin-Su Hong, Sung-Sik Choi, Jung-Ik Ha","doi":"10.23919/IPEC-Himeji2022-ECCE53331.2022.9807261","DOIUrl":"https://doi.org/10.23919/IPEC-Himeji2022-ECCE53331.2022.9807261","url":null,"abstract":"For a given voltage conversion ratio and reference output power, minimizing conduction and switching losses are essential to achieve high efficiency. This paper proposes a modulation method to minimize RMS current and achieve complete ZVS operation for all operation ranges of the series-resonant dual-active half-bridge converter. The proposed modulation scheme utilizes four control degrees of freedom (primary-duty, secondary-duty, phase shift, and switching frequency) to achieve high efficiency. The proposed modulation method is based on time-domain analysis, which provides accurate analysis results even when harmonic currents are induced by the deviation of switching frequency from the resonant frequency. Analysis of the proposed modulation method is given for step-up/down mode and bidirectional operation. And it shows that the proposed modulation method is advantageous in the operation of a high step-up or high step-down conversion ratio. The effectiveness of the proposed modulation method is verified through an experimental prototype of a series-resonant dual-active-half-bridge converter operating at over 150 kHz switching frequency.","PeriodicalId":256507,"journal":{"name":"2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127245424","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
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