Damping of Low Frequency Oscillations of Multi-Machine Multi-UPFC Power Systems, Based on Adaptive Input-Output Feedback Linearization Control

Shojaeian, Shahrokh; Soltani, Jafar; Markadeh, Gholamreza Arab

doi:10.1109/tpwrs.2012.2194313

Cited by 44 publications

(24 citation statements)

References 19 publications

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“…This method can achieve the goals of stabilization, tracking and parameter estimation [30,31]. The design procedure of the mentioned current controller is explained as follows.…”

Section: Ns Current Control Based On Lfmentioning

confidence: 99%

See 1 more Smart Citation

A robust control strategy for a grid-connected multi-bus microgrid under unbalanced load conditions

Rezaei

Soltani

2015

International Journal of Electrical Power & Energy Systems

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“…This method can achieve the goals of stabilization, tracking and parameter estimation [30,31]. The design procedure of the mentioned current controller is explained as follows.…”

Section: Ns Current Control Based On Lfmentioning

confidence: 99%

“…be the tracking error, and e n ¼n À n ð33Þ be the error between lump-sum uncertainties n and its estimated valuen ¼n anb Â Ã T , a Lyapunov function can be defined as follows [31]:…”

Section: Ns Current Control Based On Lfmentioning

confidence: 99%

A robust control strategy for a grid-connected multi-bus microgrid under unbalanced load conditions

Rezaei

Soltani

2015

International Journal of Electrical Power & Energy Systems

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“…The UPFC is also able to improve transient stability and oscillation damping of power system . Therefore, the research on the advanced controller of UPFC has attracted the attention of many researchers …”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21] In the past decade, many advanced controllers of the UPFC have been designed to compensate for a change of operating condition so that they are able to provide satisfactory performance over a wide range of operating conditions. [6][7][8][9][10][11][12][13][14][15][16][17][18] In order to improve the transient stability and damp low-frequency interarea oscillations of the power system, many nonlinear control strategies and intelligent control strategies of the UPFC have been proposed, such as direct Lyapunov function method, 1,6,7 nonlinear predictive control method, 3 feedback linearization control approach, 8,9 pseudogeneralized Hamiltonian function method, 10 terminal sliding mode control method, 16,17 adaptive nonlinear control, 20 quantum particle swarm optimizer method, 2,4 neural network predictive control approach, …”

mentioning

confidence: 99%

Global continuous robust finite‐time control design for unified power flow controller

Lei

Fei

Zhang

2018

Intl J Robust & Nonlinear

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Summary This article proposes a global continuous robust finite‐time control (GCRFTC) for a unified power flow controller (UPFC) to improve the transient stability and oscillation damping of power system. First, by using an appropriate coordinate transformation, the nonlinear system of the UPFC is transformed into a nonlinear port‐controlled dissipative Hamiltonian (PCDH) system. Second, based on the PCDH system, by utilizing the Hamiltonian structural properties and the “energy shaping plus damping injection” technique, a proper form of a Hamiltonian function is obtained for the PCDH system. Third, using the Hamiltonian function method, finite‐time stability criterion and robust control technique, the GCRFTC is designed and theoretically proved, and the chattering phenomena and the high‐order frequencies of the power system are avoided effectively. Lastly, a six‐bus and two power plants power system with a UPFC is used to test the effectiveness and robustness of the GCRFTC. Simulation results show that the speed, overshoot, and settling time of the response and the transient conditions of the GCRFTC are further improved in comparison with that of the robust finite‐time power flow control.

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“…The deregulated electricity markets have encouraged power systems to operate closer to their stability limits, and this has made power systems more vulnerable to low-damped low-frequency inter-area oscillatory modes [3]. To tackle this issue, various controllers have been designed using a variety of control approaches; utilising flexible ac transmission systems such as static var compensators [4][5][6], controllable series devices (unified power flow controller, controllable series capacitor) [7][8][9][10][11], high-voltage dc link [12,13] and power system stabiliser (PSS) [14,15]. These provide some of the options for damping low-frequency electromechanical modes.…”

Section: Introductionmentioning

confidence: 99%

Wide‐area damping control for inter‐area oscillations using inverse filtering technique

Goldoost-Soloot

Mishra

Ledwich

2015

IET Generation, Transmission & Distribution

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In this study, a non-linear excitation controller using inverse filtering is proposed to damp inter-area oscillations. The proposed controller is based on determining generator flux value for the next sampling time which is obtained by maximising reduction rate of kinetic energy of the system after the fault. The desired flux for the next time interval is obtained using wide-area measurements and the equivalent area rotor angles and velocities are predicted using a nonlinear Kalman filter. A supplementary control input for the excitation system, using inverse filtering approach, to track the desired flux is implemented. The inverse filtering approach ensures that the non-linearity introduced because of saturation is well compensated. The efficacy of the proposed controller with and without communication time delay is evaluated on different IEEE benchmark systems including Kundur's two area, Western System Coordinating Council three-area and 16-machine, 68-bus test systems. Nomenclature E′ qi quadrature component of internal voltage of generator δ i rotor angle ω i rotor angular velocity E fdi field voltage V Ri exciter input X ij tie-line reactance X d direct-axis synchronous reactances X′ d direct-axis transient reactances X q quadrature-axis reactance T′ do open-circuit d-axis transient time constant w s synchronous speed δ rotor angle J rotor inertia constant D damping coefficient P m mechanical power input of generator I d armature current of d-axis

show abstract

Damping of Low Frequency Oscillations of Multi-Machine Multi-UPFC Power Systems, Based on Adaptive Input-Output Feedback Linearization Control

Cited by 44 publications

References 19 publications

A robust control strategy for a grid-connected multi-bus microgrid under unbalanced load conditions

A robust control strategy for a grid-connected multi-bus microgrid under unbalanced load conditions

Global continuous robust finite‐time control design for unified power flow controller

Wide‐area damping control for inter‐area oscillations using inverse filtering technique

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