Renewable Integrated Power System Stability and Control. Hassan Bevrani
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4 Chapter 4Figure 4.1 Conceptual and general structure of VSG.Figure 4.2 Basic control scheme of a VSG.Figure 4.3 IEEE 9‐bus system.Figure 4.4 System response for a 10‐MW load increase at Bus 9.Figure 4.5 System response for a 20‐MW step decrease in G3 power command.Figure 4.6 Power grid with HVDC system.Figure 4.7 HVDC system as a primary source for grid frequency support.Figure 4.8 Block diagram representation of the proposed modeling process: (a...Figure 4.9 Three‐phase schematic representation of the UOK‐MG.Figure 4.10 The ESS and grid experimental dynamic responses.Figure 4.11 The pseudo‐spectrum estimation via MUSIC.Figure 4.12 Comparison of frequency response computed from the experiment an...Figure 4.13 Block diagram representation of control area i. βi, Ri, TgiFigure 4.14 (a) Frequency behaviors and (b) RoCoF of generators 1 to 3 of th...Figure 4.15 Single‐line diagram of two‐area system.Figure 4.16 Frequency response of generators 1, 2, and 3 of the two‐area pow...Figure 4.17 Single‐line diagram of NYNE test system showing coherent areas a...Figure 4.18 Virtual inertia allocation for NYNE test system.Figure 4.19 Frequency responses of NYNE test system for different approaches...Figure 4.20 Participation factor of the machines participating in the critic...Figure 4.21 Virtual inertia allocation for NYNE test system.
5 Chapter 5Figure 5.1 Illustration of clusters associated with weighted, connected grap...Figure 5.2 Overview of the steps in computing voltage control areas. Here,
6 Chapter 6Figure 6.1 Conceptual overview of the adopted control scheme showing the gri...Figure 6.2 Mechanical system explaining the adopted control scheme.Figure 6.3 Flowchart representation of the proposed control strategy;
7 Chapter 7Figure 7.1 Ten‐bus, six‐machine test system.Figure 7.2 Generic wind farm/solar photovoltaic model.Figure 7.3 Normalized speed‐based mode shapes of the electromechanical eigen...Figure 7.4 Speed deviations response following a three‐phase fault at bus 7 ...Figure 7.5 System rotor angle deviations following a three‐phase fault at bu...Figure 7.6 System bus frequency deviations following a three‐phase fault at ...Figure 7.7 System bus voltage deviations following a three‐phase fault at bu...Figure 7.8 Speed deviations of system machines and wind farms following a th...Figure 7.9 Participation factors for mode 1 in Table 7.5.Figure 7.10 Dominant DMD modes from the decomposition
8 Chapter 8Figure 8.1 Simplified system representation.Figure 8.2 Simplified schematic of the study region within Area 6. Dashed li...Figure 8.3 WFs’ active power output following a stub three‐phase fault at th...Figure 8.4 Wind farms terminal voltages following a three‐phase stub fault a...Figure 8.5 SVC reactive power output following a three‐phase stub fault at t...Figure 8.6 WFs’ bus frequencies following a three‐phase stub fault at the PO...Figure 8.7 Wind farms reactive power output (contingency scenario CS03).Figure 8.8 WFs reactive power output (contingency scenario CS03).Figure 8.9 SVC reactive power output (contingency scenario CS03).Figure 8.10 Speed‐based mode shape (contingency scenario CS03).Figure 8.11 The COG dynamic equivalent adopted for assessing energy exchange...Figure 8.12 Generator active power response following the simultaneous outag...Figure 8.13 Partial least squares regression between WFs and generation sour...Figure 8.14 Frequency response at the POIS following the outage of a 750 MW ...Figure 8.15 Frequency nadir as a function of the magnitude of generator trip...Figure 8.16 Simplified diagram of the WF reactive power control loop.Figure 8.17 Bus voltage magnitudes at the POIS for various control and dynam...Figure 8.18 Bus voltage magnitudes at selected buses in Area 6 (contingency ...Figure 8.19 Fourier spectra of bus voltage magnitude deviations in Figure 8....
Guide
6 Preface