2019 29th Australasian Universities Power Engineering Conference (AUPEC)最新文献

Battery Integration in Distributed Droopless DC Microgrid 分布式无下垂直流微电网的电池集成

2019 29th Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2019-11-01 DOI: 10.1109/AUPEC48547.2019.211926

D. Semënov, G. Mirzaeva, G. Goodwin

引用次数: 0

Sensorless Speed Control of IPMSM Using Deadbeat Extended EMF Observer 基于无差拍扩展EMF观测器的IPMSM无传感器速度控制

2019 29th Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2019-11-01 DOI: 10.1109/AUPEC48547.2019.211901

I. Yoon, Seungtaik Kim, Keonho Park, Wonseok Yeo, Sungchul Jung, Jongsun Ko

引用次数: 0

Optimal Tuning of LQR for Load Frequency Control in Deregulated Power System for Given Time Domain Specifications 给定时域条件下电力系统负荷频率控制的LQR优化整定

2019 29th Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2019-11-01 DOI: 10.1109/AUPEC48547.2019.211813

S. Muthukumari, S. Kanagalakshmi, T. S. Sunil Kumar

{"title":"Optimal Tuning of LQR for Load Frequency Control in Deregulated Power System for Given Time Domain Specifications","authors":"S. Muthukumari, S. Kanagalakshmi, T. S. Sunil Kumar","doi":"10.1109/AUPEC48547.2019.211813","DOIUrl":"https://doi.org/10.1109/AUPEC48547.2019.211813","url":null,"abstract":"Present work proposes a two stage process of designing a linear quadratic regulator (LQR) for load frequency control (LFC) in two area deregulated power system. Primary objective of proposed algorithm is to design an optimal state feedback closed loop system which embodies a set of desired time domain specifications. First stage of the algorithm comprises of desired time response model formulation, with aim that it embodies a given set of time domain specifications. In second stage, optimal selection of elements of weighting matrices \"Q\" and \"R\", used in standard LQR design procedure are carried out with objective of minimizing the error between designed responses and the desired response models. In present work, optimal selection of weighting matrices elements is formulated in an optimization framework which is solved by the application of a simple, parameter-less population based optimization technique called Jaya algorithm. The proposed algorithm reduces the tedious selection process of LQR weighting matrices elements. Optimal tuning of LQR weighting matrices elements is based on minimization of objective function which is formulated with objective of achieving a designed state feedback closed loop system response as close to that a desired time response model. The proposed algorithm has been illustrated for design of a state feedback load frequency controller (LFC) in two area deregulated power system with aim of achieving a given set of time domain specification. The performance of the proposed method is evaluated by carrying out design and simulation for a bilateral contract scenario in two area deregulated power system. Obtained results show that the designed closed loop system responses closely match with that of the desired time response models with minimum control effort and less computation time.","PeriodicalId":301431,"journal":{"name":"2019 29th Australasian Universities Power Engineering Conference (AUPEC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134291150","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

Proposing a Framework for Resilient Active Distribution Systems using Withstand, Respond, Adapt, and Prevent Element 提出一种基于承受、响应、适应和预防要素的弹性主动配电系统框架

2019 29th Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2019-11-01 DOI: 10.1109/AUPEC48547.2019.211907

D. Mishra, M. Jabbari Ghadi, Li Li, Jiangfeng Zhang

{"title":"Proposing a Framework for Resilient Active Distribution Systems using Withstand, Respond, Adapt, and Prevent Element","authors":"D. Mishra, M. Jabbari Ghadi, Li Li, Jiangfeng Zhang","doi":"10.1109/AUPEC48547.2019.211907","DOIUrl":"https://doi.org/10.1109/AUPEC48547.2019.211907","url":null,"abstract":"The increasing frequency of natural disasters and man-made attacks have increased power outages worldwide. Thus, a resilient infrastructure must be constructed to reduce power system damages which directly impacts on the social and economic lives of people. In this paper, a new framework called withstand, respond, adapt, and prevent (WRAP) is presented to evaluate and improve the resilience of distribution networks following a review on existing studies. This resilience enhancement may happen through microgrid and multi- microgrid development in planning or operation stages. Each element of the WRAP framework is responsible for the improvement of the power system resilience in terms of its own attributes and resilience evaluation index. Furthermore, the WRAP framework is defined on the basis of a flowchart with respect to conditional statements. The WRAP framework can be a helpful solution in measuring the resiliency of the power system in terms of robustness, rapidity, adaptability, and predictability. Finally, a case study considering energy-not- supplied as a resilience evaluation index is presented.","PeriodicalId":301431,"journal":{"name":"2019 29th Australasian Universities Power Engineering Conference (AUPEC)","volume":"153 12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131285931","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: 4

Nano-structured Photovoltaic Cell Design for High Conversion Efficiency by Optimizing Various Parameters 基于参数优化的高转换效率纳米结构光伏电池设计

2019 29th Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2019-11-01 DOI: 10.1109/AUPEC48547.2019.211859

Niraj Shelat, N. Das, M. M. K. Khan, S. Islam

{"title":"Nano-structured Photovoltaic Cell Design for High Conversion Efficiency by Optimizing Various Parameters","authors":"Niraj Shelat, N. Das, M. M. K. Khan, S. Islam","doi":"10.1109/AUPEC48547.2019.211859","DOIUrl":"https://doi.org/10.1109/AUPEC48547.2019.211859","url":null,"abstract":"This paper investigates the effect of different types of nano-grating structures embossed on top of the substrate of solar photovoltaic (PV) cell for high conversion efficiency. The simulation results for light reflection are obtained by using Opti-wave finite difference time-domain (Opti-FDTD) software. These nano-grating structures have different shapes, such as triangular, trapezoidal, pillar and parabolic. These nano-grating profiles work as a multilayer anti-reflective coating for GaAs solar cells and reduce the light reflection from the surface of the panel and increase the light trapping capacity inside the solar cell. These structures allow the gradual change in refractive index and provide a high transmission and less reflection of light that confirms excellent anti-reflective coating and increased light trapping capacity inside the cell substrate. For this simulation, different periodic shaped arrangements were made to obtain the higher conversion efficiency, the factors considered while develop the design are the aspect ratio (AR), thickness of the nano-grating structure and duty cycles. The simulation result shows that the light reflection loss in pillar shaped nano-grating structures having 150 nm of height and a 50% period (i.e., duty cycle) is ~0.5% only, which is the lowest reflection loss obtained, when compared with the triangular and trapezoidal shaped nano-grating structures, it is approximately 38% more efficient in trapping the incident light.","PeriodicalId":301431,"journal":{"name":"2019 29th Australasian Universities Power Engineering Conference (AUPEC)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124592790","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

Study on Remote Settings Modification of Automatic-Safety Device 自动安全装置远程设置修改的研究

2019 29th Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2019-11-01 DOI: 10.1109/AUPEC48547.2019.211924

Xinghua Chen, Dan Zheng, Xinchao Li, Wenjia Yang, Rui Chen

{"title":"Study on Remote Settings Modification of Automatic-Safety Device","authors":"Xinghua Chen, Dan Zheng, Xinchao Li, Wenjia Yang, Rui Chen","doi":"10.1109/AUPEC48547.2019.211924","DOIUrl":"https://doi.org/10.1109/AUPEC48547.2019.211924","url":null,"abstract":"Remote settings modification technology is one of the key study subjects to achieve integration of dispatch and control in power grid. It deserves a further study in ensuring the security and prevention of information distortion during the delivery to Automatic-safety device after modifying and operating the settings file. Currently, there are many methods to achieve remote settings modification. After studying and analyzing two common cases, an optimized remote settings modification technology based on the five levels of security defense mechanism is first developed; Then, the foundations for remote settings modification mode that include the exclusive format, exclusive setting platform and identity verification mechanism are detail introduced. By comparing two common cases, the result shows that application of optimized remote settings modification technology has highly flexibility and can efficiently reduce the difficulty and complexity for operators. Also, the operation security is improved by applying the five levels of security defense mechanism. In summary, the application of remote settings modification technology has better prospects.","PeriodicalId":301431,"journal":{"name":"2019 29th Australasian Universities Power Engineering Conference (AUPEC)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129421935","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

Forecasting Based Virtual Inertia Control of PV Systems for Islanded Micro-Grid 基于预测的孤岛微电网光伏系统虚拟惯性控制

2019 29th Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2019-11-01 DOI: 10.1109/AUPEC48547.2019.211843

Jiaming Chang, Yang Du, Xiaoyang Chen, E. Lim, Ke Yan

{"title":"Forecasting Based Virtual Inertia Control of PV Systems for Islanded Micro-Grid","authors":"Jiaming Chang, Yang Du, Xiaoyang Chen, E. Lim, Ke Yan","doi":"10.1109/AUPEC48547.2019.211843","DOIUrl":"https://doi.org/10.1109/AUPEC48547.2019.211843","url":null,"abstract":"Grid frequency stability is maintained by the power system inertia. However, as the converter interfaced photovoltaic (PV) generation increases, the system inertia reduces. This may result in system failures, especially for islanded micro-grid. Virtual inertial control (VIC) technology, which enables PVs to mimic the characteristics of synchronous generators (SG), has drawn increasing attention. Nevertheless, the implementation of a traditional VSG strategy typically requires a constant PV power reserve, causing unnecessary production loss during system steady states. Although VIC can also be effectively implemented by utilizing an energy storage system (ESS). The high cost is still hindering its large-scale integration. In this paper, a forecasting based virtual inertia control (FB-VIC) strategy is proposed, which enables the PV system to serve as an alternative inertia supplier without using any ESS. PV generation is pre-reserved based on the load forecasting results. The reserved PV power and SG are coordinated to perform frequency regulation. A simulation model is built to simulate the proposed FB-VIC method during a system contingency. The simulation results reveal that the proposed method can reduce the instantaneous SG power capacity over 40%. In addition, the proposed control method limits the frequency oscillation in a smaller range, which improves the system dynamic stability.","PeriodicalId":301431,"journal":{"name":"2019 29th Australasian Universities Power Engineering Conference (AUPEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129903680","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: 5

Optimal Power Flow with conventional and non-conventional generating resources in modern grids considering environmental impacts 考虑环境影响的现代电网中常规和非常规发电资源的最优潮流

2019 29th Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2019-11-01 DOI: 10.1109/AUPEC48547.2019.243753

C. Johnathon, A. Agalgaonkar, J. Kennedy, Izzah Afandi

引用次数: 2

An Overview of Hierarchical Control Strategies for Microgrids 微电网层次控制策略综述

2019 29th Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2019-11-01 DOI: 10.1109/AUPEC48547.2019.211804

Yuan Yao, N. Ertugrul

引用次数: 5

Power Sharing in an Islanded Microgrid without Synchronous Generators 无同步发电机孤岛微电网的电力共享

2019 29th Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2019-11-01 DOI: 10.1109/AUPEC48547.2019.211840

Mohammad Alomgir Hossain, H. Pota, H. Hattori

引用次数: 2