2017 North American Power Symposium (NAPS)最新文献

Stability assessment of a system comprising a single machine and inverter with scalable ratings 由单机和具有可扩展额定值的逆变器组成的系统的稳定性评估

2017 North American Power Symposium (NAPS) Pub Date : 2017-11-13 DOI: 10.1109/NAPS.2017.8107365

Yashen Lin, Brian B. Johnson, V. Gevorgian, Victor Purba, S. Dhople

{"title":"Stability assessment of a system comprising a single machine and inverter with scalable ratings","authors":"Yashen Lin, Brian B. Johnson, V. Gevorgian, Victor Purba, S. Dhople","doi":"10.1109/NAPS.2017.8107365","DOIUrl":"https://doi.org/10.1109/NAPS.2017.8107365","url":null,"abstract":"Synchronous machines have traditionally acted as the foundation of large-scale electrical infrastructures and their physical properties have formed the cornerstone of system operations. However, with the increased integration of distributed renewable resources and energy-storage technologies, there is a need to systematically acknowledge the dynamics of power-electronics inverters — the primary energy-conversion interface in such systems — in all aspects of modeling, analysis, and control of the bulk power network. In this paper, we assess the properties of coupled machine-inverter systems by studying an elementary system comprised of a synchronous generator, three-phase inverter, and a load. The inverter model is formulated such that its power rating can be scaled continuously across power levels while preserving its closed-loop response. Accordingly, the properties of the machine-inverter system can be assessed for varying ratios of machine-to-inverter power ratings. After linearizing the model and assessing its eigenvalues, we show that system stability is highly dependent on the inverter current controller and machine exciter, thus uncovering a key concern with mixed machine-inverter systems and motivating the need for next-generation grid-stabilizing inverter controls.","PeriodicalId":296428,"journal":{"name":"2017 North American Power Symposium (NAPS)","volume":"1012 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116455867","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: 32

Estimation of missing transmission line reactance data using multiple linear regression 用多元线性回归估计丢失的输电线路电抗数据

2017 North American Power Symposium (NAPS) Pub Date : 2017-09-01 DOI: 10.1109/NAPS.2017.8107278

A. Hettiarachchige-Don, V. Aravinthan

引用次数: 4

Economic dispatch with heavy loading and maximum loading identification using convex relaxation of AC OPF 大负荷经济调度及最大负荷的凸松弛AC OPF辨识

2017 North American Power Symposium (NAPS) Pub Date : 2017-09-01 DOI: 10.1109/NAPS.2017.8107409

Abdullah Alassaf, Lingling Fan

{"title":"Economic dispatch with heavy loading and maximum loading identification using convex relaxation of AC OPF","authors":"Abdullah Alassaf, Lingling Fan","doi":"10.1109/NAPS.2017.8107409","DOIUrl":"https://doi.org/10.1109/NAPS.2017.8107409","url":null,"abstract":"The objective of this paper is to explore two engineering applications of convex relaxation of AC OPF: (i) to conduct economic dispatch at heavy loading conditions; and (ii) to identify the system's loading limit. The conventional AC OPF formulation solved by interior point method has difficulty to converge when the system is reaching its loading limit due to the singularity of the Jacobian matrix. Existing methods to identify loading limits include continuous power flow (CPF) method. For CPF, the direction of power transfer has to be identified first. Then, a PV nose is obtained and the maximum loading level is at the nose point. Using convex relaxation of alternating current optimal power flow (AC OPF), we will not encounter singularity issues. In this paper, we will formulate a semi-definite programming (SDP) relaxation of AC OPF-based optimization problems to conduct economic dispatch and loading limit identification. Advantages of SDP OPF over MATPOWER are demonstrated. Further, loading limits identified by SDP OPF are compared with those found using the CPF method of MATPOWER. Our research indicates that two methods will lead to the same solutions for the tested systems.","PeriodicalId":296428,"journal":{"name":"2017 North American Power Symposium (NAPS)","volume":"250 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115178384","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 scheduling and dispatch of pumped hydro — Thermal — Wind systems 泵式水热风系统的优化调度

2017 North American Power Symposium (NAPS) Pub Date : 2017-09-01 DOI: 10.1109/NAPS.2017.8107304

S. Nag, Kwang.Y. Lee

引用次数: 5

EMTAG: A tool for animating electromagnetic transients in transmission lines EMTAG:用于绘制输电线路中电磁瞬变的工具

2017 North American Power Symposium (NAPS) Pub Date : 2017-09-01 DOI: 10.1109/NAPS.2017.8107372

Rodrigo Nuricumbo-Guillén, F. Espino-cortes, P. Gómez

引用次数: 2

Center-point-clamped AC-AC buck-boost harmonic compensator based power quality device 基于中心点箝位交-交降压升压谐波补偿器的电能质量装置

2017 North American Power Symposium (NAPS) Pub Date : 2017-09-01 DOI: 10.1109/NAPS.2017.8107286

Pankaj Bhowmik, Nakul Shah, E. Shoubaki, M. Manjrekar

{"title":"Center-point-clamped AC-AC buck-boost harmonic compensator based power quality device","authors":"Pankaj Bhowmik, Nakul Shah, E. Shoubaki, M. Manjrekar","doi":"10.1109/NAPS.2017.8107286","DOIUrl":"https://doi.org/10.1109/NAPS.2017.8107286","url":null,"abstract":"A novel approach for mitigation of power quality issues have been presented in the paper. This paper introduces a Center-Point-Clamped AC-AC Buck-Boost Converter based power quality device for industrial and residential customers at the leaf end of the distribution network. This converter utilizes the principle of center-point-clamping to reduce the voltage stress on the power semiconductor switches. It can buck, boost and eliminate unwanted line frequency harmonics from the input voltage by controlling the duty ratio of the switches, thereby providing desired voltage at the customer side with minimal THD. A closed loop strategy has also been presented in the paper. This feedback regulator improves the steady state and transient performance of the converter. Simulation results displayed in the paper verify the feasibility and effectiveness of the proposed power quality device in mitigation of power quality issues like voltage sag, voltage swell and harmonics at multiple order of line frequency, have been displayed in the paper. A small scale experimental prototype rated at 120V, 1-kW has been constructed in the laboratory. Experimental results further corroborate the theoretical and simulated analysis, and demonstrate the merits of the proposed approach.","PeriodicalId":296428,"journal":{"name":"2017 North American Power Symposium (NAPS)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122047084","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

Distributed quasi-dynamic state estimation with both GPS-synchronized and non-synchronized data 基于gps同步和非同步数据的分布式准动态状态估计

2017 North American Power Symposium (NAPS) Pub Date : 2017-09-01 DOI: 10.1109/NAPS.2017.8107173

Boqi Xie, A. Meliopoulos, Yu Liu, Liangyi Sun

引用次数: 6

Low voltage issues and its mitigation in Southern regional grid in India 印度南部地区电网低压问题及其缓解措施

2017 North American Power Symposium (NAPS) Pub Date : 2017-09-01 DOI: 10.1109/NAPS.2017.8107373

T. M. Kumar, G. Anbunesan, S. P. Kumar, B. Anusha, Jane Jose

引用次数: 0

A game-theoretic demand response market with networked competition model 基于网络竞争模型的博弈论需求响应市场

2017 North American Power Symposium (NAPS) Pub Date : 2017-09-01 DOI: 10.1109/NAPS.2017.8107253

Mahdi Motalleb, Alireza Eshraghi, E. Reihani, H. Sangrody, R. Ghorbani

引用次数: 13

An adaptive communication scheme for bandwidth limited residential load forecasting 一种带宽有限的住宅负荷预测自适应通信方案

2017 North American Power Symposium (NAPS) Pub Date : 2017-09-01 DOI: 10.1109/NAPS.2017.8107360

Guangrui Xie, Xi Chen, Yang Weng

{"title":"An adaptive communication scheme for bandwidth limited residential load forecasting","authors":"Guangrui Xie, Xi Chen, Yang Weng","doi":"10.1109/NAPS.2017.8107360","DOIUrl":"https://doi.org/10.1109/NAPS.2017.8107360","url":null,"abstract":"While adding new capabilities, the distributed energy resource proliferation raises great concern about challenges such as dynamic fluctuations of voltages. For example, in a volatile setting with highly uncertain renewable generation and customer consumption, it is challenging to provide reliable power and voltage prediction for operational planning purposes to mitigate risks, e.g., over-voltages. In this paper, we propose an integrated Gaussian Process-based method (IGP) for electric load (consumption minus generation) prediction. For improving the forecasting accuracy, we use not only the data streams generated by the target customer but also those of relevant customers in the feeder system. An adaptive data communication rate controlling scheme is further proposed for dimension reduction of streaming data to address the situation when bandwidth limit enforces a constraint in some feeders. The goal is to make IGP with the same prediction precision but significantly less streaming data amount. The superior efficacy and efficiency of IGP and its enhanced variants are tested and verified on the standard IEEE 8-bus and 123-bus distribution test cases.","PeriodicalId":296428,"journal":{"name":"2017 North American Power Symposium (NAPS)","volume":"159 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121195977","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