الفهرس 
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Abstract
This thesis aims to study the synchronous generator performance in the case of connection with the static compensator (STATCOM). So, this thesis introduces a detailed model for the STATCOM, which is used to study the interaction with the synchronous generator. The proposed STATCOM model consists of two six-pulse converters. The phase control technique is used. The main parts of the compensator system are modeled as separate parts. So, the model can be used as a benchmark model for the STATCOM in such studies. The ATPdraw is used in this model implementation. The proposed model verification has been undertaken by the use of previous published results.
The synchronous generator is modeled and the automatic voltage regulator (AVR) is modeled in details using ATPdraw. These models are used to study the effects of the STATCOM on the synchronous generator. from this study,
The synchronous generator performance can be improved using the STATCOM through enhancement the generator operating point within its capability curve. An application study is performed on a practical case of Damietta Combined Cycle Power Plant (DCCPP).
Research outline
Chapter 1: Presents a general introduction to the thesis, objectives and research outlines.
Chapter 2: Presents a review of the transmission system shunt VAR compensators. The elementary single phase thyristor controlled reactor (TCR), the thyristor switched capacitor (TSC), fixed capacitor thyristor controlled reactor and the solid state VAR generators ,most of the shunt static VAR compensators are described here together in brief description of its control principles.
Chapter 3: Describes the theory and modeling technique of the static synchronous compensator using ATPdraw. Also the control circuit elements are explained. Twelve-pulse controlled STATCOM are implemented using ATPdraw. The STATCOM models are detailed models that include all GTO valves and diodes, with the required snubber circuits. The three phase studies in this chapter are based on a 230KV test power system. Also the ATPdraw time domain simulation of the STATCOM model is presented in this chapter.
Chapter 4: In this chapter the interaction between the synchronous machine excitation system and the STATCOM are explained .Damietta combined cycle power plant selected to simulate the scenarios of reactive power injection and absorption. The benefit of installing STATCOM close to the synchronous machine which is connected to the unified grid has being discussed in this chapter.
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Chapter 5: Draws conclusion for this research and proposes future work.
Contributions
The main contributions of this thesis can be summarized in the following points:
Review of the static compensators shunt types, the operations principles and control theory.
Detailed modeling of the static VAR compensator STATCOM using ATPdraw simulation package. Also the performance of the STATCOM under different operating condition has been studied using published power system. This model can be considered as bench-mark model.
The interaction between the STATCOM and the synchronous generator exciter has been studied when the location of the STATCOM more closely to the synchronous generator.
Damietta Combined Cycle Power Plant is selected to study the scenario of the STATCOM effect on plant synchronous generators.
Also the future work can be include Developing a model for Damietta Combined Cycle Power Plant to study the possibility of designing and implementing a control circuit which has the ability to insert the STATCOM controller with automatic voltage regulator in one control loop. Also, coordination between both controllers to achieve specific resultant operating point with fast response and economic operation will be studied.