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Damping Of Power System Oscillations By Using Coordinated Tuning Of Pod And Pss With Statcom

A. S. P.Kanojia, B. Dr.V.K.Chandrakar
2009 Zenodo  
The main aim of the paper is to design a power system installed with a Static synchronous compensator (STATCOM) and demonstrates the application of the linearised Phillips-heffron model in analyzing the  ...  oscillations damping (POD) control and power system stabilizer (PSS) and their coordinated action with proposed controllers are tested.  ...  Basic stability studies will be conducted on a single machine connected to infinite bus (SMIB) power system. The linearised Phillips-Heffron model which is used for oscillation stability analysis.  ... 
doi:10.5281/zenodo.1331152 fatcat:rpz5tlj75fefngwoqrx36vkjcu

Analysis of the damping characteristics of two power electronics-based devices using 'individual channel analysis and design'

Carlos E. Ugalde-Loo, Enrique Acha, Eduardo Licéaga-Castro
2018 Applied Mathematical Modelling  
A synchronous generator feeding into a system with large inertia is used for such a purpose.  ...  to synchronous generator operation by using the physical insight afforded by 'individual channel analysis and design'.  ...  In ICAD, Bode and Nyquist plots are extensively used, together with a detailed analysis of the multivariable structure function (MSF) [8, 9] .  ... 
doi:10.1016/j.apm.2018.02.008 fatcat:5tmmgx2korfgln5uxtlx5ohj64

Small Signal Interactions Involving a Synchronous Machine and a Grid Forming Converter

Luke Benedetti, Panagiotis N. Papadopoulos, Agusti Egea-Alvarez
2021 2021 IEEE Madrid PowerTech  
Interactions between synchronous machines (SMs) and grid forming converters (GFMs) will become increasingly relevant as the power system transitions from a conventional fossil fueled synchronous based  ...  The study employs small-signal models and performs small-signal eigenvalue analysis.  ...  Linearisation Process A common approach to study electromechanical (and any other relevant) modes associated with a machine or interactions between multiple machines is to perform a small-signal analysis  ... 
doi:10.1109/powertech46648.2021.9494923 fatcat:n6pfjt2xprbehl3wlvdkjru7sq

Unified power flow controllers in smart power systems: models, methods, and future research

Pavlos S. Georgilakis, Nikos D. Hatziargyriou
2019 IET Smart Grid  
Several models and methods have been suggested for the control, analysis, operation, and planning of UPFCs in smart power systems.  ...  This study introduces a review of the state-of-the-art models and methods of UPFCs in smart power systems, analysing and classifying current and future research trends in this field.  ...  A feedback linearisation control is proposed for damping inter-area oscillations using UPFCs with ultra-capacitors [123] .  ... 
doi:10.1049/iet-stg.2018.0065 fatcat:lvsu37dy6jflvh67qlloaup6py

Design of variable structure power system stabilisers with desired eigenvalues in the sliding mode

M.L. Kothari, J. Nanda, K. Bhattacharya
1993 IEE Proceedings C Generation Transmission and Distribution  
A systematic approach for the design of variable structure power system stabilisers (VSPSS), with desired eigenvalues in the sliding mode is presented.  ...  A detailed sensitivity analysis reveals that the VSPSS is quite robust to wide variations in operating load and system parameters.  ...  A linear dynamic model of the system obtained by linearisation of a nonlinear model around a nominal operating point is usually adopted for the PSS design.  ... 
doi:10.1049/ip-c.1993.0039 fatcat:emajvh2t6fbtdazoiazk7otpiu

Sub-synchronous Interactions in Power Systems with Wind Turbines: A Review

Kanghui Gu, Feng Wu, Xiao-Ping Zhang
2018 IET Renewable Power Generation  
Additionally, the research on a grid-connected voltage-source converter in combination with the phase-locked loop, which has caused instability issues including SSI, is briefly introduced.  ...  Then two major types of wind turbines: doubly fed induction generator and permanent magnet synchronous generator with respect to their participations in SSI are reviewed according to the current research  ...  A VSC, when used in combination with PLL, has possibility to present negative damping in the range of sub-synchronous frequency and therefore causes SSCI [33] .  ... 
doi:10.1049/iet-rpg.2018.5199 fatcat:smgrqgr4mfdktnsqqafab5zau4

Stability Analysis of a Grid-Connected VSC Controlled by SPC

Leonardo Marin, Andres Tarrasa, Ignacio Candela, Pedro Rodriguez
2018 2018 7th International Conference on Renewable Energy Research and Applications (ICRERA)  
Index Terms-small signal stability, synchronous power controller, state-space, eigenvalues, sensitivity analysis.  ...  In this work, a sensitivity analysis of a VSC connected to the grid and controlled by SPC is performed. In this sense, a non-linear mathematical model of the system is first developed.  ...  Influence of the damping constant K D Fig. 4 shows the eigenvalues of the system for values of K D equivalent to a sweep of the damping values ζ from 0 to 1.  ... 
doi:10.1109/icrera.2018.8567018 fatcat:nyz3qbingzbphnrlee7vlmt32i

Virtual charge-based synchronisation and feedback linearisation-based current control of a three-phase grid-connected inverter without grid voltage sensors

Vikram Roy Chowdhury, Jonathan W. Kimball
2020 IET Power Electronics  
In this study, a virtual charge-based scheme for grid synchronisation with only current measurements has been proposed for a three-phase grid-connected inverter with a first-order filter.  ...  Also, a current control architecture based on feedback linearisation concept has been explored and embedded with the proposed grid voltage estimation technique, and the corresponding performance has been  ...  Feedback linearisation based control strategy for a threephase grid-connected inverter with RL filter The feedback linearisation-based control strategy has been implemented on a three-phase grid-connected  ... 
doi:10.1049/iet-pel.2020.0145 fatcat:oz3spssrhja7jpu3eqeyto7miy

Small-signal dynamic model of a micro-grid including conventional and electronically interfaced distributed resources

F. Katiraei, M.R. Iravani, P.W. Lehn
2007 IET Generation, Transmission & Distribution  
The proposed approach incorporates fundamental frequency deviations in the overall system model and provides a methodology for the analysis of autonomous micro-grid, which inherently is more prone to frequency  ...  The results are qualitatively verified on the basis of the comparison with those obtained from time-domain simulation in the PSCAD/EMTDC environment.  ...  The linearised model is used for (i) eigenvalue analysis, (ii) frequency analysis through determination of the system transfer functions and (iii) step response analysis of the control systems.  ... 
doi:10.1049/iet-gtd:20045207 fatcat:afhob2dxircvhla6wfqlq6puny

Power System Modelling and Analysis Techniques [chapter]

Robin Preece
2013 Improving the Stability of Meshed Power Networks  
In addition to the modelling techniques presented, tools for power system stability analysis based on system linearisation are also described.  ...  Various well documented tools are available to engineers for power system modelling and analysis.  ...  A disturbance is considered to be small if the power system equations can be linearised for the purpose of the analysis.  ... 
doi:10.1007/978-3-319-02393-9_2 fatcat:274ldwg5nzhyvkdcud3ok2tzci

Modeling Simulation Study of TCSC based Damping Controller for Power System

Shalini Sharma
2017 International Journal of Engineering Research and  
After the initial operating conditions were computed, the detailed linearised state space models has been designed for a single machine infinite bus (SMIB) environment.  ...  In this paper Load flow study has been carried out without compensation and with compensation that is with TCSC alone and then with TCSC & fixed capacitor at different loading of system to obtain the initial  ...  CONCLUSION After the initial operating conditions were computed, the detailed linearised state space models of a single machine infinite bus (SMIB) system incorporating a TCSC alone and then with TCSC  ... 
doi:10.17577/ijertv6is040293 fatcat:7grn37eexbbkzewm5fcaormtmu

Design of FACTS Device For The Improvement of Power System Stability using Mathematical Matching Controller

S Sowjanya
2012 IOSR Journal of Electrical and Electronics Engineering  
Philips-Heffrons model of a power system installed with a static synchronous compensator (STATCOM) and demonstrates the application of the model in analyzing the damping effect of the STATCOM and designing  ...  The power system installed with a FACTS device demonstrates the application of the model in analyzing the damping effect of the FACTS device stabilizer to improve power system oscillation stability.  ...  EQUATIONS FOR ANALYSIS Linear dynamic model: The linear dynamic model in state space form given below is obtained by linearising the nonlinear model around a nominal operating condition.  ... 
doi:10.9790/1676-0130711 fatcat:tjj65mxfn5crrhr5ry3qupg26u

Analysis and simulation of the single-machine infinite-bus with power system stabilizer and parameters variation effects

G. Shahgholian Ghfarokhi, M. Arezoomand, H. Mahmoodian
2007 2007 International Conference on Intelligent and Advanced Systems  
The idea of power system stabilizer (PSS) or supplementary excitation control is to apply a signal through the excitation system to produce additional damping torque of the generator in a power system  ...  In this paper the study of the dynamic behavior and transient stability of the single-machine infinite-bus (SMIB) with used the eigenvalue analysis is presented.  ...  Also, that is one of the important factors in the transient study of power system analysis. The synchronous generator is driven by a turbine with a governor and excited by an external AVR and a PSS.  ... 
doi:10.1109/icias.2007.4658368 fatcat:ge3srvgrljdfpo2vfte2pmj7te

Transient stability enhancement of power system with instability tolerant synchronous generator

Hamid Yaghobi
2020 IET Generation, Transmission & Distribution  
It is worth highlighting that, along with the growth of grid interconnections, the stability has been a significant concern in the operation of the power systems, and the generators play a substantial  ...  Out-of-step or out-of-synchronism is the loss of magnetic coupling between the rotor and the stator of a synchronous generator.  ...  It should be noted that the most often used methods for placing damping source devices are controllability analysis [7, 8, 28] . This technique is obtained from modal control analysis.  ... 
doi:10.1049/iet-gtd.2020.0418 fatcat:gchh2bepfjerbhp3fhlw33pf2e

Alleviation of transient torsional torque stresses of turbine generator shaft segments using CBVLC supplementary controller

Narendra Kumar, Sanjiv Kumar
2016 International Journal of Power and Energy Conversion  
In this paper a bus voltage and line current (BVLC) supplementary subsynchronous damping controller (SSDC) is proposed to alleviate subsynchronous resonance (SSR) and damping power system oscillations  ...  Both eigenvalue investigation and time-domain simulation results verify that the proposed method can damp torsional oscillations of the power system with SVS bus voltage and line current (BVLC) supplementary  ...  The study is carried out based on damping torque analysis, eigenvalue analysis, and transient simulation. The results show that the suggested controller is satisfactory for damping SSR.  ... 
doi:10.1504/ijpec.2016.075064 fatcat:2nbpmpm4knfe7fcqm6er4syjay
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