Proceedings of the 37th Annual North American Power Symposium, 2005.最新文献_第4页

Optimization of power flows in polyphase systems with significant source impedance 具有显著源阻抗的多相系统的潮流优化

Proceedings of the 37th Annual North American Power Symposium, 2005. Pub Date : 2005-12-19 DOI: 10.1109/NAPS.2005.1560496

H. Lev-Ari, A. Stanković

引用次数: 2

Economical effects of the Weibull parameter estimation on wind energy projects 风电项目威布尔参数估计的经济效应

Proceedings of the 37th Annual North American Power Symposium, 2005. Pub Date : 2005-12-19 DOI: 10.1109/NAPS.2005.1560595

C. Ramos-Robles, A. Irizarry-Rivera

引用次数: 10

A new algorithm for unit commitment based on on/off decision criterion 基于开/关决策准则的机组调试新算法

Proceedings of the 37th Annual North American Power Symposium, 2005. Pub Date : 2005-12-19 DOI: 10.1109/NAPS.2005.1560525

Hui-jie Zheng, Bei Guo

引用次数: 4

Effects of remedial actions on LMPs 治疗措施对LMPs的影响

Proceedings of the 37th Annual North American Power Symposium, 2005. Pub Date : 2005-12-19 DOI: 10.1109/NAPS.2005.1560568

Fang Yang, A. Meliopoulos, G. Stefopoulos

{"title":"Effects of remedial actions on LMPs","authors":"Fang Yang, A. Meliopoulos, G. Stefopoulos","doi":"10.1109/NAPS.2005.1560568","DOIUrl":"https://doi.org/10.1109/NAPS.2005.1560568","url":null,"abstract":"Locational marginal pricing (LMP) has been deployed by several wholesale markets in United States. Standard market design (SMD) proposed by FERC has also adopted LMP as the foundation for the open market power industry, LMP values are influenced by system operating conditions. If system is unconstrained, LMP values are flat throughout the network. When system is constrained, because of congestion or abnormal voltages, LMP values differentiate at various locations. Their values reflect the increased cost to deliver energy from marginal units to load buses. For speed and simplicity, most LMP models include merely constraints of transmission congestion and consider the generator unit real power output rescheduling as the only way to alleviate transmission congestion. However, in typical power systems there are other types of remedial actions (RAs) that can be applied to alleviate or eliminate system constraints. These RAs include shunt capacitor/reactor switching, transformer tap/phase shifter adjustment, etc. Remedial actions can affect LMPs by virtue of their effect on system active constraints. In this paper, we examine the effectiveness of remedial actions in smoothing LMP values. We propose an LMP computational models that includes RA effects as well as congestion and voltage constraints. The formulation of the problem is based on the single phase quadratized AC power flow model. The problem is linearized using the efficient co-state method leading to a standard linear program which is solved with standard techniques. An example power system is used to demonstrate the proposed framework. LMP values with and without RAs are computed and compared. Results show that effect of RAs on LMP is noteworthy and appropriate RAs can effectively flatten LMP values.","PeriodicalId":101495,"journal":{"name":"Proceedings of the 37th Annual North American Power Symposium, 2005.","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129704760","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

A V-I slope-based method for flicker source detection 基于V-I斜率的闪烁源检测方法

Proceedings of the 37th Annual North American Power Symposium, 2005. Pub Date : 2005-12-19 DOI: 10.1109/NAPS.2005.1560560

A. Nassif, E. Nino, W. Xu

引用次数: 31

Benefit allocation after the merger of electricity markets 电力市场合并后的利益分配

Proceedings of the 37th Annual North American Power Symposium, 2005. Pub Date : 2005-12-19 DOI: 10.1109/NAPS.2005.1560574

P. Ruiz

引用次数: 1

New monitoring and control scheme for preventing cascading outage 新的监测和控制方案，防止级联停机

Proceedings of the 37th Annual North American Power Symposium, 2005. Pub Date : 2005-12-19 DOI: 10.1109/NAPS.2005.1560499

Nan Zhang, Hongbiao Song, M. Kezunovic

引用次数: 9

UPFC control employing gradient descent search UPFC控制采用梯度下降搜索

Proceedings of the 37th Annual North American Power Symposium, 2005. Pub Date : 2005-12-19 DOI: 10.1109/NAPS.2005.1560566

W. Siever, R. Kalyani, M. Crow, D. Tauritz

{"title":"UPFC control employing gradient descent search","authors":"W. Siever, R. Kalyani, M. Crow, D. Tauritz","doi":"10.1109/NAPS.2005.1560566","DOIUrl":"https://doi.org/10.1109/NAPS.2005.1560566","url":null,"abstract":"Increasing demand coupled with limitations on new construction indicate that existing power transmission must be better controlled in order to continue reliable operation. Recent advances in FACTS devices provide a mechanism to better control power flow on the transmission network. One particular device, the unified power flow controller (UPFC), holds the most promise for maintaining operation even when the system has suffered partial failure (either naturally occurring, due to human error, or a malicious attack). In addition to the capital cost, the primary obstacles to widespread UPFC use are the combined problems of selecting the most cost effective locations for installation and maintaining proper control of them once installed. In this paper we list evidence that gradient descent search based on load-flow computation is more realistic and accurate than many of the optimization techniques currently in use. We then demonstrate that gradient descent search can be used to select control points that improve system fault tolerance more than those found by the max-flow technique. In addition, we demonstrate that the size of the system being computed and the number of computations is bounded and is practical for real time control.","PeriodicalId":101495,"journal":{"name":"Proceedings of the 37th Annual North American Power Symposium, 2005.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128694932","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

Optimal operation of hydrothermal systems in the short term 热液系统短期内的优化运行

Proceedings of the 37th Annual North American Power Symposium, 2005. Pub Date : 2005-12-19 DOI: 10.1109/NAPS.2005.1560511

P.E. Onate, J. M. Ramirez

引用次数: 7

Value-based implementation of distributed generation in optimal power flow 最优潮流下基于值的分布式发电实现

Proceedings of the 37th Annual North American Power Symposium, 2005. Pub Date : 2005-12-19 DOI: 10.1109/NAPS.2005.1560497

J. Momoh, G. Boswell

{"title":"Value-based implementation of distributed generation in optimal power flow","authors":"J. Momoh, G. Boswell","doi":"10.1109/NAPS.2005.1560497","DOIUrl":"https://doi.org/10.1109/NAPS.2005.1560497","url":null,"abstract":"Distributed generation (DG) has emerged as a practical and viable technology for alleviating power system shortages related to generation and transmission inadequacies. The market location and coordination of a selected DG technology is of high importance to engineers and power marketers. This paper develops an approach for coordinating DG on a grid/micro-grid and solves the resource allocation problem in the framework of a voltage stability constrained optimal power flow. Continuation power flow (CPF) was used to determine weak voltage nodes that are vulnerable to voltage collapse as well as determination of the voltage stability margin (VSM). The impact assessment of DG is computed in terms of the added value to the locational marginal price (LMP) differentials between neighboring network nodes as well as across area boundaries. LMP was used to compute the market implications of installing DG sources. The value of DG (or its detrimental impacts) is monitored and the corresponding available transfer capabilities (ATC) of critical interfaces were determined. The feasibility of the developed approach for value-based DG implementation was tested on a 30-bus 330 kV high voltage system model.","PeriodicalId":101495,"journal":{"name":"Proceedings of the 37th Annual North American Power Symposium, 2005.","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127862604","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: 11