Document Details

Document Type : Thesis 
Document Title :
Contingency Analysis to Evaluate Power System Security Using Powerworld Simulator
تحليل الحالات الطارئة للتقيم امن نظم القوى الكهربائية باستخدام محاكاة Powerworld
 
Subject : Faculty of Engineering 
Document Language : Arabic 
Abstract : System security entails methods aimed to keep the system running when components fail. The most common failures in power systems are transmission lines and generating units. Transmission line failures affect power flows and bus voltages on the other lines. When a generator goes out of service in the power system, the operational conditions of the transmission lines and other generators changed, such as the system frequency, active and reactive power flow. Planned outages as well as forced outages of transmission lines and generating units change the topology of the power system. As such events in the power system should be analyzed and ranked by severity to take the proper action to maintain system reliability and maintain customer satisfaction. Contingency analysis and risk management are important tasks for the safe operation of electrical power network. Potential harmful disturbances that occur during the steady state operation of a power system are known as contingencies. Contingency analysis is carried out by using repeated load flow solutions for each of a list of potential component failures. The main goal of this thesis is to illustrate different methods for ranking and screening contingencies using DC power flow and to consider linear sensitivity factors so that system operators can respond quickly to estimate the active power flow after a contingency for all system transmission lines with an acceptable margin of error for two major approaches: cold start and hot start DC power flow. The methodology of the research depends on the Powerworld simulator to investigate the single contingency scenario (N-1) and rank the most critical lines using different formulas of performance indices. Then, by applying the multiple contingency scenarios (N-K) using the bus outages, an investigation was performed using the complex power performance index to specify the critical system substations, which could happen because of any such missile attack on the critical substation or for any natural reasons such as earthquakes, hurricanes, floods, etc. Finally evaluate the critical buses voltage stability using PV and QV curves and assess the system stability under the highest PI contingences, which provide useful information about the ranking of bus voltages and pinpoint the weak system elements, classification of critical areas to voltage stability and extended to contingency analysis and load shedding schemes. Where the focus was to monitor the active and reactive power flow for the critical buses and evaluate the power transfer during the highest rank transmission lies outage. So, we can think how to enhance the voltage stability and security together. 
Supervisor : Dr. Muhyaddin Jamal Rawa 
Thesis Type : Master Thesis 
Publishing Year : 1444 AH
2022 AD 
Added Date : Sunday, February 19, 2023 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
ابراهيم اسماعيل أحمدAhmad, Ibrahim IsmailResearcherMaster 

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