Model-based grid modernization economic evaluation framework
Başlık çevirisi mevcut değil.
- Tez No: 401211
- Danışmanlar: DR. ROBERT BROADWATER, DR. JAIMA DE LA REE LOPEZ
- Tez Türü: Doktora
- Konular: Elektrik ve Elektronik Mühendisliği, Electrical and Electronics Engineering
- Anahtar Kelimeler: Belirtilmemiş.
- Yıl: 2014
- Dil: İngilizce
- Üniversite: Virginia Polytechnic Institute and State University
- Enstitü: Yurtdışı Enstitü
- Ana Bilim Dalı: Belirtilmemiş.
- Bilim Dalı: Belirtilmemiş.
- Sayfa Sayısı: 111
Özet
Özet yok.
Özet (Çeviri)
A smart grid cost/benefit analysis answers a series of economic questions that address the incremental benefits of each stage or decision point. Each stage of the economic analysis provides information about the incremental benefits of that stage with respect to the previous stage. With this approach stages that provide little or no economic benefits can be identified. In this study there are series of applications,- including quasi-steady state power flows over time-varying loads and costs of service, Monte Carlo simulations, reconfiguration for restoration, and coordinated control - that are used to evaluate the costbenefits of a series of smart grid investments. In the electric power system planning process, engineers seek to identify the most cost-effective means of serving the load within reliability and power quality criteria. In order to accurately assess the cost of a given project, the feeder losses must be calculated. In the past, the feeder losses were estimated based upon the peak load and a calculated load factor for the year. The cost of these losses would then be calculated based upon an expected, fixed per-kWh generation cost. This dissertation presents a more accurate means of calculating the cost of losses, using hourly feeder load information and time-varying electric energy cost data. The work here attempts to quantify the improvement in high accuracy and presents an example where the economic evaluation of a planning project requires the more accurate loss calculation. Smart grid investments can also affect response to equipment failures where there are two types of responses to consider -blue-sky day and storm. Storm response and power restoration can be very expensive for electric utilities. The deployment of automated switches can benefit the utility by decreasing storm restoration hours. The automated switches also improve system reliably by decreasing customer interruption duration. In this dissertation a Monte Carlo simulation is used to mimic storm equipment failure events, followed by reconfiguration for restoration and power flow evaluations. The Monte Carlo simulation is driven by actual storm statistics taken from 89 different storms, where equipment failure rates are time varying. The customer outage status and durations are examined. Changes in reliability for the system with and without automated switching devices are investigated. Time varying coordinated control of Conservation Voltage Reduction (CVR) is implemented. The coordinated control runs in the control center and makes use of measurements from throughout the system to determine control settings that move the system toward optimum performance as the load varies. The coordinated control provides set points to local controllers. A major difference between the coordinated control and local control is the set points provided by the coordinated control are time varying. Reduction of energy and losses of coordinated control are compared with local control. Also eliminating low voltage problems with coordinated control are addressed. An overall economic study is implemented in the final stage of the work. A series of five evaluations of the economic benefits of smart grid automation investments are investigated. Here benefits that can be quantified in terms of dollar savings are considered here referred to as“hard dollar”benefits. Smart Grid investment evaluations to be considered include investments in improved efficiency, more cost effective use of existing system capacity with automated switches, and coordinated control of capacitor banks and voltage regulators. These Smart Grid evaluations are sequentially ordered, resulting in a series of incremental hard dollar benefits. Hard dollar benefits come from improved efficiency, delaying large capital equipment investments, shortened storm restoration times, and reduced customer energy use. The evaluation shows that when time varying loads are considered in the design, investments in automation can improve performance and significantly lower costs resulting in“hard dollar”savings.
Benzer Tezler
- 1920-1960 arası dönemde planlanan çok katmanlı Batı Anadolu yerleşimlerinin modern mimarlık mirası değerlerinin korunması
Conservation of modern architectural heritage values of multi-layered Western Anatolian settlements planned between 1920-1960
ZEREN ÖNSEL ATALA
Doktora
Türkçe
2023
Mimarlıkİstanbul Teknik ÜniversitesiMimarlık Ana Bilim Dalı
DR. ÖĞR. ÜYESİ SAKİNE YILDIZ SALMAN
- Development of a home energy management system to increase renewable self-consumption in households considering demand-side flexibility
Talep tarafı esnekliği dikkate alınarak konutlarda yenilenebilir öz tüketimi artırmaya yönelik bir ev enerji yönetim sistemi geliştirilmesi
ANIL CAN DUMAN
Doktora
İngilizce
2024
Enerjiİstanbul Teknik ÜniversitesiEnerji Bilim ve Teknoloji Ana Bilim Dalı
PROF. DR. ÖNDER GÜLER
- An investigation into the effects of different parameters on high-resolution geoid modeling accuracy in the context of height system modernization
Yükseklik sistemi modernizasyonu bakımından farklı parametrelerin yüksek çözünürlüklü geoit modelleme doğruluğu üzerindeki etkilerinin incelenmesi
ONUR KARACA
Doktora
İngilizce
2024
Jeodezi ve Fotogrametriİstanbul Teknik ÜniversitesiGeomatik Mühendisliği Ana Bilim Dalı
PROF. DR. BİHTER EROL
- Topoğrafik çekim etkisinin hesaplanmasında düzlemsel ve küresel yaklaşımların karşılaştırılması ve bölgesel geoit modellemede irdelenmesi
Comparison of planar and spherical approaches for the calculation of topographic gravitational effect and investigation in regional geoid modeling
MUHAMMED RAŞİT ÇEVİKALP
Yüksek Lisans
Türkçe
2022
Jeodezi ve Fotogrametriİstanbul Teknik ÜniversitesiGeomatik Mühendisliği Ana Bilim Dalı
DOÇ. DR. BİHTER EROL
- Hibrit AC-DC mikro şebekeler için kontrolör tasarımı
Controller design for a hybrid AC-DC microgrid
NELSON LUIS MANUEL
Yüksek Lisans
Türkçe
2022
Elektrik ve Elektronik MühendisliğiKırıkkale ÜniversitesiElektrik-Elektronik Mühendisliği Ana Bilim Dalı
PROF. DR. NİHAT İNANÇ