Dynamic Security of Interconnected Electric Power Systems - Volume 1

1 Introduction
 1.1 Electrical energy sources and their operational characteristics
 1.2 Power System Security: Contingency Analysis and Corrective Actions
 1.3 System Monitoring
 1.4 Requirements and Concepts for Real-Time Stability Analysis

2 Electromechanical Equivalence for Fast and Real-time Transient Stability Assessment – Overview
 2.1 Objectives and Scope
 2.2 The need of and Methods for Equivalency

3 Traditional coherency-Based Electromechanical Equivalence
 3.1 Overview of the technique
 3.2 Identification of Coherent Generators (Stage I)
  3.2.1 Preliminary Calculations
  3.2.2 Construction of the Linearized System Model
  3.2.3 Solution of the proposed linearized model
  3.2.4 Simulation of various disturbances
  3.2.5 Coherency Identification Criteria
  3.2.6 Coherency identification and evaluation – case study 1
 3.3 Coherency-based network reduction (Stage II) 
  3.3.1 Preliminary Calculations
  3.3.2 Admittance to Ground and impedance of new lines
  3.3.3 Common Bus Terminal Voltage
  3.3.4 Network reduction for the NPCC system – Case study 2
 3.4 Dynamic aggregation of coherent generators (Stage III)
  3.4.1 Equivalent Rotor Dynamics
  3.4.2 Equivalent Synchronous Machine
  3.4.3 Evaluation of the presented coherency-based equivalency – case study 3
 3.5 Coherency-based electromechanical equivalence – case study 4
 3.6 The concept of remote areas and their equivalency treatment
  3.6.1 Treatment of Remote Areas
  3.6.2 Validation of Equivalent of RA in Large-Scale Power System – Case study 5
 3.7 Recent and future security requirements  
Appendix: Nomenclature for volume 1 and volume 2
References