2017 19th International Conference on Intelligent System Application to Power Systems (ISAP)最新文献

Design of a multi-agent system for distributed voltage regulation 分布式电压调节多智能体系统的设计

2017 19th International Conference on Intelligent System Application to Power Systems (ISAP) Pub Date : 2017-10-19 DOI: 10.1109/ISAP.2017.8071400

Minjiang Chen, Dimitrios Athanasiadis, B. A. Faiya, S. Mcarthur, I. Kockar, Haowei Lu, F. de León

{"title":"Design of a multi-agent system for distributed voltage regulation","authors":"Minjiang Chen, Dimitrios Athanasiadis, B. A. Faiya, S. Mcarthur, I. Kockar, Haowei Lu, F. de León","doi":"10.1109/ISAP.2017.8071400","DOIUrl":"https://doi.org/10.1109/ISAP.2017.8071400","url":null,"abstract":"In this paper, an intelligent distributed multi-agent system (MAS) is proposed for the implementation of a novel optimization technique for distributed voltage regulation. The proposed MAS approach controls a large heavily-meshed distribution network which is grouped into small subnetworks using ε decomposition. The voltage regulation is accomplished by distributed generator (DG) agents, linear programming solver (LPS) agents, network violation detector (NVD) agents, and one ε decomposition agent. The LPS agent has an embedded control algorithm which optimizes DG generation within a subnetwork once the voltage at particular nodes exceeds the normal operational limits. The subnetworks and their control requirements are achieved through self-organization, which is the novelty of the research. Each intelligent agent has its own knowledge and reasoning logic to plan its own activities. The control actions are coordinated through agent communications within the subnetwork. The agent platform, Presage2, with improved autonomy and agent communication capability, has been used to develop the proposed MAS system and design the agents' behaviors.","PeriodicalId":257100,"journal":{"name":"2017 19th International Conference on Intelligent System Application to Power Systems (ISAP)","volume":"44 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134593871","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

Voltage regulators allocation in power distribution networks: A tabu search approach 配电网稳压器配置:禁忌搜索方法

2017 19th International Conference on Intelligent System Application to Power Systems (ISAP) Pub Date : 2017-09-01 DOI: 10.1109/ISAP.2017.8071379

José Ubirajara Núñez de Nunes, A. Bretas

引用次数: 4

An intelligent parallel scheduling method for optimal transmission switching in power systems with batteries 含电池电力系统最优传输切换的智能并行调度方法

2017 19th International Conference on Intelligent System Application to Power Systems (ISAP) Pub Date : 2017-09-01 DOI: 10.1109/ISAP.2017.8071398

T. Lan, Garng M. Huang

{"title":"An intelligent parallel scheduling method for optimal transmission switching in power systems with batteries","authors":"T. Lan, Garng M. Huang","doi":"10.1109/ISAP.2017.8071398","DOIUrl":"https://doi.org/10.1109/ISAP.2017.8071398","url":null,"abstract":"Daily load variation and intermittence of renewable generation may sometime cause transmission congestion in modern power system. As a result, cheap generation cannot be fully dispatched and in extreme condition involuntary load shedding will be enforced. In this paper, an intelligent parallel scheduling method using optimal transmission switching (OTS) and batteries is proposed to mitigate transmission congestion and therefore reduce operational cost. OTS and batteries are embedded in AC optimal power flow (ACOPF) with binary variables used, which is formulated as a mixed integer nonlinear programming (MINLP) problem. To solve the MINLP problem efficiently for multi-hour case, a two-stage optimization scheme is proposed based on developed knowledge. A multi-hour case first is calculated in stage one with OTS disabled to obtain the knowledge of estimated the optimal charging/discharging strategy for batteries. Then, the multi-hour case is decoupled into several subproblems and solved simultaneously in parallel computing. Numerical results on modified IEEE-118 bus system shows the usefulness of the proposed intelligent parallel scheduling method.","PeriodicalId":257100,"journal":{"name":"2017 19th International Conference on Intelligent System Application to Power Systems (ISAP)","volume":"12 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":"129449302","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: 8

Machine learning versus ray-tracing to forecast irradiance for an edge-computing SkyImager 机器学习与光线追踪预测边缘计算SkyImager的辐照度

2017 19th International Conference on Intelligent System Application to Power Systems (ISAP) Pub Date : 2017-09-01 DOI: 10.1109/ISAP.2017.8071425

W. Richardson, H. Krishnaswami, L. Shephard, R. Vega

{"title":"Machine learning versus ray-tracing to forecast irradiance for an edge-computing SkyImager","authors":"W. Richardson, H. Krishnaswami, L. Shephard, R. Vega","doi":"10.1109/ISAP.2017.8071425","DOIUrl":"https://doi.org/10.1109/ISAP.2017.8071425","url":null,"abstract":"Increasing penetration of photovoltaics (PV) into the electric grid necessitates accurate intra-hour solar irra-diance forecasting. The authors have previously developed a low cost all-sky imaging system at the University of Texas at San Antonio. The SkyImager hardware is designed around a Raspberry Pi single board computer (SBC) with a fully programmable, high resolution Pi Camera, housed in an all-weather enclosure. The software to process the images and to make minutes-ahead forecasts is written in Python 2.7 and utilizes the open source computer vision package OpenCV. A two-step approach for the forecasts uses optical flow to track low-level cumulus clouds and ray-tracing to predict the location of cloud shadows. This paper proposes to replace the ray-tracing approach which is traditionally known to be an ill-posed inverse problem with a machine learning strategy that utilizes a novel multi-layer perceptron (MLP) to classify cloud-cover in sub-images of the circumsolar region. The developed SkyImager was deployed at the National Renewable Energy Laboratory (NREL) in 2015, where it successfully collected months of all-sky image data. In 2016 a second SkyImager was integrated into a microgrid management system at Joint Base San Antonio. Results are presented to validate the proposed methodology.","PeriodicalId":257100,"journal":{"name":"2017 19th International Conference on Intelligent System Application to Power Systems (ISAP)","volume":"888 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113982353","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

Estimation of power system inertia using particle swarm optimization 基于粒子群算法的电力系统惯性估计

2017 19th International Conference on Intelligent System Application to Power Systems (ISAP) Pub Date : 2017-09-01 DOI: 10.1109/ISAP.2017.8071383

Dimitrios Zografos, M. Ghandhari, K. Paridari

引用次数: 10

A dynamic current allocation algorithm for alienation coefficient based busbar fault discriminator 基于疏离系数的母线故障识别器动态电流分配算法

2017 19th International Conference on Intelligent System Application to Power Systems (ISAP) Pub Date : 2017-09-01 DOI: 10.1109/ISAP.2017.8071385

Monir Hossain, Lipika Mittal, P. Rastgoufard

引用次数: 2

Power system decomposition for practical implementation of bulk-grid voltage control methods 电力系统分解为实际实现大电网电压控制的方法

2017 19th International Conference on Intelligent System Application to Power Systems (ISAP) Pub Date : 2017-09-01 DOI: 10.1109/ISAP.2017.8071378

M. Vallem, B. Vyakaranam, Jesse T. Holzer, M. Elizondo, N. Samaan

{"title":"Power system decomposition for practical implementation of bulk-grid voltage control methods","authors":"M. Vallem, B. Vyakaranam, Jesse T. Holzer, M. Elizondo, N. Samaan","doi":"10.1109/ISAP.2017.8071378","DOIUrl":"https://doi.org/10.1109/ISAP.2017.8071378","url":null,"abstract":"Power system algorithms such as AC optimal power flow and coordinated volt/var control of the bulk power system are computationally intensive and become difficult to solve in operational time frames. The computational time required to run these algorithms increases exponentially as the size of the power system increases. The solution time for multiple subsystems is less than that for solving the entire system simultaneously, and the local nature of the voltage problem lends itself to such decomposition. This paper describes an algorithm that can be used to perform power system decomposition from the point of view of the voltage control problem. Our approach takes advantage of the dominant localized effect of voltage control and is based on clustering buses according to the electrical distances between them. One of the contributions of the paper is to use multidimensional scaling to compute «-dimensional Euclidean coordinates for each bus based on electrical distance to perform algorithms like K-means clustering. A simple coordinated reactive power control of photovoltaic inverters for voltage regulation is used to demonstrate the effectiveness of the proposed decomposition algorithm and its components. The proposed decomposition method is demonstrated on the IEEE 118-bus system.","PeriodicalId":257100,"journal":{"name":"2017 19th International Conference on Intelligent System Application to Power Systems (ISAP)","volume":"21 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":"115010715","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

RCAM based maintenance plan of the power transformers using k-means clustering algorithm 基于RCAM的电力变压器维修计划的k-means聚类算法

2017 19th International Conference on Intelligent System Application to Power Systems (ISAP) Pub Date : 2017-09-01 DOI: 10.1109/ISAP.2017.8071391

Aysun Koksal, A. Ozdemir, O. Ata

引用次数: 3

Voltage security constrained look-ahead coordination of reactive power support devices with high renewables 电压安全约束下的高可再生无功支持装置前瞻协调

2017 19th International Conference on Intelligent System Application to Power Systems (ISAP) Pub Date : 2017-09-01 DOI: 10.1109/ISAP.2017.8071416

Xinbo Geng, Le Xie, D. Obadina

{"title":"Voltage security constrained look-ahead coordination of reactive power support devices with high renewables","authors":"Xinbo Geng, Le Xie, D. Obadina","doi":"10.1109/ISAP.2017.8071416","DOIUrl":"https://doi.org/10.1109/ISAP.2017.8071416","url":null,"abstract":"Reactive power support devices (RPSDs) such as capacitor banks and Static Var Compensators (SVCs) play a pivotal role in ensuring system voltage security. In large power systems with high penetration of renewables, the variability brought about by the renewables requires more coordination among these reactive power support devices. In this paper, we investigate the benefits of look-ahead coordination of both continuous-state and discrete-state RPSDs across multiple control areas. The objective is to coordinate multiple RPSDs in anticipation of near-term net load variations in order to minimize the costs of RPSD operations and transmission losses. Constraints include ensuring voltage security with respect to a set of possible contingency scenarios. This problem is first formulated as a Mixed Integer Non-Linear Programming (MINLP) problem and then approximated as a Mixed Integer Quadratic Programming (MIQP) problem via power flow Jacobian matrix. The validity of the solution to the MIQP problem is verified by solving AC power flow equations. The proposed approach is examined on the IEEE 24-bus Reliability Test System (RTS) system. Critical discussions on the impacts of wind uncertainties are provided, and a linear approximation approach is proposed to estimate the impacts of wind fluctuations on voltage magnitudes.","PeriodicalId":257100,"journal":{"name":"2017 19th International Conference on Intelligent System Application to Power Systems (ISAP)","volume":"5 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":"115295091","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 similarity-based PMU error detection technique 一种基于相似度的PMU错误检测技术

2017 19th International Conference on Intelligent System Application to Power Systems (ISAP) Pub Date : 2017-09-01 DOI: 10.1109/ISAP.2017.8071369

Ikponmwosa Idehen, T. Overbye

引用次数: 5