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2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)最新文献

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Black-Box Stability Analysis Method for Dual Parallel Pulse Power Load 双并联脉冲电力负荷的黑盒稳定性分析方法
2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2023-06-09 DOI: 10.1109/PEDG56097.2023.10215173
Xinfa Chen, Jianping Xu, Ping Yang, Zhengge Chen, Jin Qi, Xiusheng Tang
{"title":"Black-Box Stability Analysis Method for Dual Parallel Pulse Power Load","authors":"Xinfa Chen, Jianping Xu, Ping Yang, Zhengge Chen, Jin Qi, Xiusheng Tang","doi":"10.1109/PEDG56097.2023.10215173","DOIUrl":"https://doi.org/10.1109/PEDG56097.2023.10215173","url":null,"abstract":"The impedance of power source of the microgrid cannot be regarded as infinite, thus it may cause stability problems, especially when the load is a pulse power load. The black box method can not be well applied to pulse power load. To address this issue, a black-box stability analysis method for system with parallel pulse loads is proposed in this paper. Based on the stability condition of the system with single load, the stability condition of the system with parallel load is derived. Finally, 3-D fitting Bode plot are given to analyze the stability of the system with parallel load. Simulations results are given to verify the analysis results.","PeriodicalId":386920,"journal":{"name":"2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)","volume":"147 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133265126","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
Frequency Stability of Renewable Energy Integrated Low-Inertia Power Systems During Grid Faults 电网故障时可再生能源集成低惯量电力系统的频率稳定性
2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2023-06-09 DOI: 10.1109/PEDG56097.2023.10215287
Chang-Feng He, H. Geng
{"title":"Frequency Stability of Renewable Energy Integrated Low-Inertia Power Systems During Grid Faults","authors":"Chang-Feng He, H. Geng","doi":"10.1109/PEDG56097.2023.10215287","DOIUrl":"https://doi.org/10.1109/PEDG56097.2023.10215287","url":null,"abstract":"In low-inertia power systems, frequency stability during the grid fault is in immediate danger. Increasing application of inverter-based generations (IBGs), the dynamics of which are determined by the control strategy, has reshaped the frequency nature of the synchronous generator-dominated power system. In this regard, this paper proposes a holistic Synchronization–Based Frequency model to describe the frequency dynamics of the low-inertia power system during the grid fault. The model captures the system’s synchronization dynamics that exert a considerable impact on the frequency stability. Based on the model, new mechanisms for frequency stability are revealed. Firstly, synchronization stability is found to be necessary for frequency stability in renewable-rich power systems. Secondly, the power balance between the total active power generation and total active power demand determines the frequency dynamics. The singular perturbation method is used for the steady-state analysis. A new form of frequency instability is found. The power balance-restricted frequency stability curve gradually approaches the synchronization stability boundary as the fault gets more severe, and eventually exceeds the boundary. The system suffers from frequency instability as no equilibrium point for power balance exists within the synchronization stability region. Simulations are conducted in SIMULINK to verify the correctness of findings.","PeriodicalId":386920,"journal":{"name":"2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)","volume":"429 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115932491","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
Cooperative Control of DC Microgrid Cluster with Different Voltage Levels 不同电压水平直流微电网集群的协同控制
2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2023-06-09 DOI: 10.1109/PEDG56097.2023.10215219
Jiawang Qin, Zongjun Xin, Zheng Dong, Hongzheng Liu
{"title":"Cooperative Control of DC Microgrid Cluster with Different Voltage Levels","authors":"Jiawang Qin, Zongjun Xin, Zheng Dong, Hongzheng Liu","doi":"10.1109/PEDG56097.2023.10215219","DOIUrl":"https://doi.org/10.1109/PEDG56097.2023.10215219","url":null,"abstract":"A multi-voltage level DC microgrid cluster electrical connection architecture and cooperative control method are proposed in this paper, i.e., multi-port converter (MPC) is used to construct the power flow paths among microgrids, and load sharing and voltage deviation are optimized by the secondary control and tertiary control of the DC microgrid cluster. The secondary control is based on the proposed electrical connection architecture and adopts an improved distributed consensus algorithm, which improves the estimation accuracy of the voltage observer and solves the problems of voltage deviation and power distribution imbalance in traditional droop control. Meanwhile, the power flow among microgrids is coordinated by the tertiary control to realize mutual assistance of multiple microgrids of different voltage levels, which improves the consumption of new energy and the robustness of the microgrid cluster. Finally, the proposed method is verified by simulation.","PeriodicalId":386920,"journal":{"name":"2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114386169","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
Optimal Design of the Planar Transformer Based on Its Multi-physics Field Coupling Characteristics 基于多物理场耦合特性的平面变压器优化设计
2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2023-06-09 DOI: 10.1109/PEDG56097.2023.10215253
Yin Zheng, Yujie Wu, Shishan Wang, Zhan Shen
{"title":"Optimal Design of the Planar Transformer Based on Its Multi-physics Field Coupling Characteristics","authors":"Yin Zheng, Yujie Wu, Shishan Wang, Zhan Shen","doi":"10.1109/PEDG56097.2023.10215253","DOIUrl":"https://doi.org/10.1109/PEDG56097.2023.10215253","url":null,"abstract":"Integration, high reliability and high power density have become the research hotspot of modern high-frequency power converter equipment. More and more research on planar transformers in order to improve the power density of electronic devices. Taking planar transformer as the research object, combined with its technical indicators. This paper is applied to the half-bridge LLC resonant converter system, based on multi-physics simulation and experiments, the design and optimization of planar transformers are realized. The design and optimization of high-frequency PCB planar transformers are taken as the research goal, a high-frequency equivalent model is established, and it is calculated in electromagnetic simulation software. The optimization is carried out from the two aspects of loss characteristics and structural parameters, which has certain reference significance for the design of PCB type planar transformers in similar high-frequency, low-voltage and high-current applications.","PeriodicalId":386920,"journal":{"name":"2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)","volume":"2012 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114506859","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
Intelligent Sensing Terminal Distributed Computing Architecture of IoT for EMS 面向EMS的物联网智能传感终端分布式计算架构
2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2023-06-09 DOI: 10.1109/PEDG56097.2023.10215140
Lidan Zhou, Xiuhan Song, Gang Yao, Hongyu Wang, Jun Yu Li, Siyang Liu, Yongjie Nie
{"title":"Intelligent Sensing Terminal Distributed Computing Architecture of IoT for EMS","authors":"Lidan Zhou, Xiuhan Song, Gang Yao, Hongyu Wang, Jun Yu Li, Siyang Liu, Yongjie Nie","doi":"10.1109/PEDG56097.2023.10215140","DOIUrl":"https://doi.org/10.1109/PEDG56097.2023.10215140","url":null,"abstract":"In view of the serious fragmentation of the functions, forms, basic software and hardware of the Internet of Things intelligent perception terminal, a software architecture based on the Internet of Things intelligent perception terminal is proposed, and the software architecture is designed from the upper application aspect. At the same time, in order to achieve distributed computing in the EMS Internet of Things, a new decision algorithm has been proposed to solve the allocation problem of computing power nodes (ECNs). In addition, in order to construct a multi-terminal distributed autonomous collaborative control architecture with hierarchical structural features, three terminal autonomous collaborative methods were proposed.","PeriodicalId":386920,"journal":{"name":"2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121895614","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 Submodule Test Method for Modular Multilevel Converter Based on Hardware-in-the-Loop System 基于硬件在环系统的模块化多电平变换器子模块测试方法
2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2023-06-09 DOI: 10.1109/PEDG56097.2023.10215213
Linjie Han, Binbin Li, Yanjun Shen, Zeheng Sun, Yuchao Liu, Dianguo Xu
{"title":"A Submodule Test Method for Modular Multilevel Converter Based on Hardware-in-the-Loop System","authors":"Linjie Han, Binbin Li, Yanjun Shen, Zeheng Sun, Yuchao Liu, Dianguo Xu","doi":"10.1109/PEDG56097.2023.10215213","DOIUrl":"https://doi.org/10.1109/PEDG56097.2023.10215213","url":null,"abstract":"The test method for sub-circuits in modular topology has been widely studied in recent years. Most of the existing methods need to build extra hardware circuit and are not flexible. To improve the flexibility, this paper proposes a control and power hardware-in-the-loop test bench, which is capable of power and control signals interaction simultaneously. It could provide a real operating environment for sub-circuits under test, which is as like working together with the other parts of whole modular topology.","PeriodicalId":386920,"journal":{"name":"2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125932501","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
Distribution Bus Voltages as a Metric for Grid Health Considering Widespread Public EV Charging 考虑到广泛的公共电动汽车充电，配电母线电压作为电网健康指标
2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2023-06-09 DOI: 10.1109/PEDG56097.2023.10215279
Levi Miller, Jackson Morgan, R. Zane, Hongjie Wang
{"title":"Distribution Bus Voltages as a Metric for Grid Health Considering Widespread Public EV Charging","authors":"Levi Miller, Jackson Morgan, R. Zane, Hongjie Wang","doi":"10.1109/PEDG56097.2023.10215279","DOIUrl":"https://doi.org/10.1109/PEDG56097.2023.10215279","url":null,"abstract":"The widespread adoption of electric vehicles (EVs) is raising attention to the impact of EV charging on grid health conditions, as increasing public EV charging loads are being added to the distribution grid. This paper presents a study conducted to evaluate the effectiveness of using distribution bus voltages as a metric for evaluating grid health considering widespread public EV charging. Using the Caldera software and distribution network models created with the OpenDSS modeling software, the effect of EV charging on the grid power distribution network has been studied in this work. The IEEE 34-bus system and a distribution network in downtown Salt Lake City, Utah USA are used as study cases in the work. The results of the study are time-series voltage data at select buses on each network. Analysis of the results and comparison of the studies show voltage violations can occur on the IEEE 34-bus system due to public electric vehicle charging loads, but no violations were observed in the actual grid power distribution network in downtown Salt Lake City. Based on the case study results, analysis, and comments, insights have been provided in this paper to further discuss the effectiveness of using distribution bus voltages alone as the metric for grid health. Through the analysis, case studies, and system simulations, this paper concluded that distribution bus voltages alone may not be a sufficient metric in determining grid health considering widespread public electric vehicle charging.","PeriodicalId":386920,"journal":{"name":"2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124807960","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 Dynamic Time-Domain Based Accurate Small Signal Model for LLC Converter 基于动态时域的LLC变换器精确小信号模型
2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2023-06-09 DOI: 10.1109/PEDG56097.2023.10215127
Shuo Zhang, Yuqi Wei, Jinjun Liu
{"title":"A Dynamic Time-Domain Based Accurate Small Signal Model for LLC Converter","authors":"Shuo Zhang, Yuqi Wei, Jinjun Liu","doi":"10.1109/PEDG56097.2023.10215127","DOIUrl":"https://doi.org/10.1109/PEDG56097.2023.10215127","url":null,"abstract":"LLC resonant converter has been widely adopted in switching power supply due to its high power density and high efficiency characteristics. However, because the switching frequency is close to the resonant frequency, it is difficult to derive the small signal model accurately. In this paper, an accurate small signal model for LLC converter is derived based on the dynamic time-domain model. The LLC converter dynamic time-domain model is developed by modeling three different stages, stage ending conditions, and the judgements of next stage. Combing with the basic concept of small signal modeling, the accurate control-to-output transfer function bode diagram can be derived, which is more accurate than the traditional extended describing function (EDF) method. Simulation results under various conditions are presented to verify the accuracy of the proposed small signal model. The small signal analysis results from the developed model are consistent with the commercial simulation software.","PeriodicalId":386920,"journal":{"name":"2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129355866","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
Parallel Virtual Impedance Based Fluctuation Power Delivery Strategy For MMC Based SST 基于并联虚阻抗的MMC型海温波动输电策略
2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2023-06-09 DOI: 10.1109/PEDG56097.2023.10215131
Jaiyi Li, Jianqiao Zhou, Jianwen Zhang, G. Shi, Xu Cai, Y. Wang, Xiaofeng Dong, Wei Bao
{"title":"Parallel Virtual Impedance Based Fluctuation Power Delivery Strategy For MMC Based SST","authors":"Jaiyi Li, Jianqiao Zhou, Jianwen Zhang, G. Shi, Xu Cai, Y. Wang, Xiaofeng Dong, Wei Bao","doi":"10.1109/PEDG56097.2023.10215131","DOIUrl":"https://doi.org/10.1109/PEDG56097.2023.10215131","url":null,"abstract":"Modular multilevel converter (MMC) based solid state transformer (MMC-SST) shows promise in hybrid AC/DC distribution grid. This paper introduces a topology consisting of cells made of directly coupled MMC sub-modules (SMs) and isolated SAB modules forming a multi-port SST for grid interconnection. Due to the large SM capacitors for low frequency fluctuation power handling, the device power density is low, which will limit its application. This paper proposes an MMC-SST SM capacitor optimization method based on fluctuation power delivery. It reduces the equivalent low frequency impedance of the SAB by parallel virtual impedance. Low frequency fluctuation power will be delivered into SAB circuit and naturally eliminated in low-voltage DC side due to three-phase symmetrical MMC-SST structure. Therefore, the SM capacitance could be optimized where the power fluctuation flowing into it are reduced. The feasibility of the proposed method is verified by a simulation model.","PeriodicalId":386920,"journal":{"name":"2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130176488","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
Flexibilities of a Voltage Support Control Strategy for Grid-Connected Inverter-Interfaced Distributed Generators during Voltage Sags 电压跌落时并网逆变器接口分布式发电机电压支持控制策略的灵活性
2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2023-06-09 DOI: 10.1109/PEDG56097.2023.10215232
Ingrid J. Moreno, Maria A. Mantilla, Astrid Esparza, J. Rey, D. J. Rincón
{"title":"Flexibilities of a Voltage Support Control Strategy for Grid-Connected Inverter-Interfaced Distributed Generators during Voltage Sags","authors":"Ingrid J. Moreno, Maria A. Mantilla, Astrid Esparza, J. Rey, D. J. Rincón","doi":"10.1109/PEDG56097.2023.10215232","DOIUrl":"https://doi.org/10.1109/PEDG56097.2023.10215232","url":null,"abstract":"Modern grid codes require that inverter-interfaced distributed generators include a low voltage ride-through (LVRT) capability to remain connected to the grid and provide voltage support when a sag occurs. To implement this capability, flexible control strategies are widely considered since they allow the achievement of different control objectives by correctly setting some control parameters. This paper presents a generalization of a flexible control strategy to provide voltage support during voltage sags using the maximum inverter power capability. The strategy considers four control parameters whose variation results in different voltage support capabilities. Consequently, an algorithm that allows to identify the support capabilities and the operating characteristics of the system according to the variation of the control parameters is presented. Simulation studies are performed on Matlab to validate the analysis.","PeriodicalId":386920,"journal":{"name":"2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130454425","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
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