Feedback linearizing excitation control on a full-scale powersystem model

A type of feedback linearizing excitation control is simulated on a very large (5000-bus) model of the Northeast Power Coordinating Council System. The control is implemented on two groups of machines, one in the New York City/Long Island area and one in the Lake Ontario area of New York State. A series of system faults is simulated, the most serious involving the loss of a very large portion of the transmission capacity from Northwest New York State to the New York City area, under extreme loading conditions. The nonlinear control prevents a breakup of the system which would otherwise result in a widespread blackout, at the expense of a rise in the system voltage at the Lake Ontario end. Simulations are also run with PSS/static exciter combinations on the same groups of generators, as a rough comparison of the performance of conventional vs. feedback linearizing control     

纽约市关于大停电事故应急措施的调研报告（摘译）

本文报导了 2 0 0 3年 8月 14 ,15两日美国纽约大停电带来的冲击和问题和相应的应急措施。大停电的影响远超过现代生活的不便 ,如果关键的地方没有适当的备用发电设备 ,则将严重威胁紧急处理和生命救助系统。本文目的是通过回顾纽约实际发生的危害情况进一步认识连续供电和大停电时必要的备用发电设备的重要性。最后摘录了他们对备用发电机的一些建议供用电管理人员参考。文中的信息来自事后由纽约市长组织的一个应急工作组编制的一份名为“加强纽约市的应急措施”的调研报告     

Evaluation of the performance of line protection schemes on theNYSEG six phase transmission system

This paper describes the performance of different line protection schemes during testing and operation which were used to protect the first commercially operated six phase transmission line in the world-the New York State Electric and Gas 93 kV (phase to phase and phase to ground) line from Goudey station to Oakdale substation. This project was sponsored by Electric Power Research Institute (EPRI), the Department of Energy (DOE), Empire State Electric Energy Research Corporation (ESEERCO), New York State Energy Office (SEO), New York State Energy Research and Development Authority (NYSERDA) and New York State Electric and Gas Corporation (NYSEG)     

Solar Power Satellites as a Class Design Project in the University

The solar power satellite, a potential source of baseload electric power, has been used as a topic for a class design project at Rensselaer Polytechnic Institute. The class organization and student design projects are summarized, with the emphasis on student innovative design.     

Student's Corner

An undergraduate student at Rensselaer Polytechnic Institute has learned very quickly that a spoonful of sugar really does help the medicine go down. In fact, with his invention, the sugar may actually be the medicine!     

Retrospectroscope: Horatio B. Williams and the firstelectrocardiographs made in the United States

Horatio Burt Williams was likely the first American clinical electrophysiologist. He published the first paper on ECG in the western hemisphere, constructed the first string galvanometer in America, plotted the first vectorcardiogram, discovered the ventricular vulnerable period, and first quantitated the amount of 60-Hz current required to produce ventricular fibrillation with body-surface electrodes; he also showed that ventricular defibrillation could be achieved with body-surface electrodes using high-intensity 60-Hz current. Williams died at the age of 78 on November 1, 1955, at the Presbyterian Hospital in New York. He was born on September 17, 1877, in Utica, New York     

Development of the Professional Electric Power Engineering Program at Rensselaer-The Salient Features

The various phases of the early development of the electric power engineerng program at Rensselaer are briefly described. This paper covers the period during which the author was leading this development.     

纽约州能源效率和可再生能源计划

美国纽约州能源研究和开发管理局(NYSERDA)提供各种计划帮助纽约州居民和企业提高能源效率。这些计划为纽约人提供了各种渠道去获得资金和技术专长,学习成熟的清洁能源技术和减少能源浪费的流程,并使得人们在省钱的同时能够保护环境。NYSERDA提供资源、专业知识和客观信息,使得纽约人可以做出明智的能源决策。NY-SERDA计划分成5个系列,每个系列代表一个互补的组提供该区域的能源重点和目标。     

Testing and Evaluation of Insulating Films Part I: Description of Test Facilities at the University at Buffalo

This first part in a two-part series examines the test facilities available at the University at Buffalo, Buffalo, New York. The facilities have been set up to study-the effect of electrical, thermal, and radiation, prestressing upon the physical properties of dielectric materials proposed for use in high voltage energy storage and transfer systems.     

De Forest and the first electrosurgical unit

In the United States, Lee De Forest, who patented the first triode vacuum tube (audion) in 1907 and 1908, was experimenting with a high-frequency spark-gap generator for use in surgery and filed a U.S. patent application describing his work on 10 February 1907, which was issued on 17 December 1907. This device was the first electrosurgical unit, and there are no better words than his own in his patent for describing it; he stated: Be it known that I, Lee De Forest, a citizen of the United States, and a resident of New York, in the county of New York and State of New York, have invented a new and useful improvement in Cauteries, of which the following is a specification. My invention relates to devices for producing burning effects by means of high-frequency electrical currents, and more particularly to cauteries employed in surgery. (A cautery is a heated rod used to cut and coagulate living tissue.) I have discovered that when a conductor is attached to any part of a high-frequency oscillating circuit, the high-frequency electrical current passing into a body, for example, a human body, will produce a heating or burning effect at the point of contact of the electrode conveying such currents to said body, and that the intensity of said heating or burning effect is inversely proportional to the terminal area of said electrode. If therefore the electrode ends in a fine point or cutting edge, or relatively small area of other shape, an extremely intense burning effect may be obtained.     

Field tests to validate hydro turbine-governor model structure andparameters

A test procedure was developed to obtain accurate governor models for hydroelectric stations owned by the New York Power Authority to improve the accuracy of stability simulations of the New York State system. Tests were performed on units at three stations and values for parameters of previously available model structures were derived from the information obtained during these tests. However, it was found that the model structures were not adequate to represent the entire range of operating conditions. Additional examination of test measurements and model structures indicated that the model structure needed to be refined. This paper reports on the refinements made to the hydro turbine-governor models which enabled reproduction of the physical system responses. Simulation results indicate that the refined models with the corresponding identified parameters produce responses which closely fit those recorded from the tests performed on three hydro units     

美国东部与西部电力市场的分析比较

介绍并比较了美国目前已经运行的4个电力市场,即东部的PJM、新英格兰、纽约州电 力市场和西部的加州电力市场,分析了加州电力危机的深层原因,最后提出 了我国电力市场应该从中吸取的经验教训。     

Integrating research results into a power engineering curriculum

This paper presents summaries of the activities of six research active power engineering educators which were presented in a panel session of the same name at the IEEE Power Engineering Society Winter Meeting on February 3, 1997 in New York City, USA. Each of the panelists discusses how research results are incorporated into courses and how students benefit from this approach     

Research on capacity addition using market model with transmission congestion under competitive environment

In this research, the fundamental premises for deregulation of the electric power industry are reevaluated. The authors develop a simple model to represent the wholesale electricity market with a highly congested network. The model is developed by simplifying the power system and market in the New York ISO based on available data for the New York ISO in 2004 along with some estimation. Based on the developed model and construction cost data from the past, the economic impact of transmission line addition on market participants and the impact of deregulation on power plant additions in a market with transmission congestion are studied. Simulation results show that market signals may fail to facilitate proper capacity additions and results in the undesirable overconstruction and insufficient construction cycle of capacity addition. © 2011 Wiley Periodicals, Inc. Electr Eng Jpn, 178(3): 11–20, 2012; Published online in Wiley Online Library ( wileyonlinelibrary.com ). DOI 10.1002/eej.21013     

Inequitable access to EV charging infrastructure

Access to and affordability of electric vehicle (EV) charging infrastructure are the two prominent barriers for EV adopttion. While major efforts are underway in the United States to roll-out public EV charging infrastructure, persistent social disparities in EV adoption call for interventions. In this paper, we analyze the existing EV charging infrastructure across New York City (NYC) to identify such socio-demographic and transportation features that correlate with the current distribution of EV charging stations. Our results demonstrate that population density is not correlated with the density of EV chargers, hindering New York’s EV adoption and decarbonization goals. On the contrary, the distribution of EV charging stations is heavily skewed against low–income, Black–identifying, and disinvested neighborhoods in NYC, however, positively correlated to presence of highways in a zip code. The results underscore the need for policy frameworks that incorporate equity and justice in the roll-out of EV charging infrastructure.     

Integrated Electricity Markets in New York

With planned improvements in New York, suppliers and consumers will face efficient prices for electricity, congestion, and ancillary services that encourage the appropriate amounts and locations for production, consumption, and investment.     

Application of genetic algorithm in optimization of unified power flow controller parameters and its location in the power system network

This work demonstrates the application of Genetic Algorithm (GA) technique for the simultaneous stabilization of power systems using a Unified Power Flow Controller (UPFC). The GA is applied to find the optimal location of the UPFC and to tune its control parameters under different operating conditions. The problem is formulated as a multiobjective optimization problem which aims at maximizing the damping ratio of the electromechanical modes using different lines fitted with the UPFC. The approach is successfully tested on the 16-machine 68-bus New England–New York interconnected system and on the Iraqi National Super Grid System (INSGS) to validate its effectiveness in the damping of local and inter-area modes of oscillations. In addition, the proposed approach demonstrated better performance when compared to a fuzzy-based UPFC damping controller.     

国外电力市场的监管方法、指标与手段

文章在对美国加州，纽约州，PJM等电力市场，以及澳大利亚、阿根廷，新西兰等国电力市场监管调研的基础上，对电力市场监管分析、监管指标，重点监管的投机行为和监管手段等进行了分析和归纳，这些监管理论和实践对中国电力市场的建设和发展具有重要意义。     

Resolving the conflict between new and old: A comparison of New York,California and other state DER proceedings

Distributed energy resources present opportunities to serve grid and customer need through two-way power flow. New values, methods, and planning are required to efficiently interconnect and utilize DERs. This paper analyzes New York’s and California’s DER proceedings to provide a comparison of the similarities and differences between these and other states that will result in different levels of deployments and valuations of DERs.     

The Impact of Programmed Self-Instruction on Scheduling and Other Logistical Administrative Problems

The exploitable logistic patterns of synthesis and application derivable from a fully differentially paced teaching system should be recognized as one of the more highly significant contributions of the system worth identifying and developing. This paper sets forth views and procedures resulting from research into adaptive autoinstructional methodologies at New York Institute of Technology as they affect scheduling and other logistical administrative problems.