Power system transient stability enhancement by optimal control of static VAR compensators

Machowski, J.; Nelles, Dieter

doi:10.1016/0142-0615(92)90026-6

Cited by 16 publications

(9 citation statements)

References 11 publications

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“…The approach based on the waveform analysis offers similar capabilities. Of course, other methods of selecting the parameters of control systems can be used, including Lyapunov's direct method [18,19].…”

Section: Discussionmentioning

confidence: 99%

Rotor angle small signal stability assessment in transmission network expansion planning

Robak

Gryszpanowicz

2015

Electric Power Systems Research

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Section: Discussionmentioning

confidence: 99%

Rotor angle small signal stability assessment in transmission network expansion planning

Robak

Gryszpanowicz

2015

Electric Power Systems Research

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“…2) described by (4). To understand this recall that REI model contains only generator {G} nodes and node k. The short-circuit admittance at node k can be calculated, using Thevenin's theorem, by short-circuiting all the generator e.m.f.s.…”

Section: B Equivalent Network For the System With Shunt Elementmentioning

confidence: 99%

“…To solve this problem direct Lyapunov method and a non-linear multi-machine power system model is used without resorting to linearisation. The paper extends the previous work of the authors on designing Lyapunov-based damping controllers [4]- [7]. A state-variable control law for shunt FACTS devices like Static VAR Compensator (SVC), Static Synchronous Compensator (STATCOM), braking resistor (BR) and Superconducting Magnetic Energy Storage (SMES) is derived, and validity and robustness of the methodology is confirmed by computer simulation of a multi-machine test system.…”

Section: Introductionmentioning

confidence: 97%

Closed-loop stability-enhancing control of shunt FACTS devices using phasor measurements

Machowski

Białek

2005

2005 IEEE Russia Power Tech

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This paper addresses the problem of closed-loop stability-enhancing control of shunt FACTS devices. As the feedback signals, rotor angles and speed deviations of the generators have been used as supplied by a wide-area phasor measurement system. Control laws have been derived for nonlinear multi-machine system model using direct Lyapunov method with the aim to enforce the fastest possible decay of total system energy and therefore the fastest possible return to a steady-state equilibrium point. Validity and robustness of the proposed state-variable control has been confirmed by computer simulation for a multi-machine test system.

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“…A direct Lyapunov method was first used for enhancing a power system stability by a supplementary control of FACTS devices in publications [33], [34], [35], [36], [37], [38] and later also in [7], [8]. This article describes a new (mathematically determined) algorithm of a simultaneous control of many HVDC links and many series FACTS devices used for enhancing power swings damping in the entire AC power system.…”

Section: Introductionmentioning

confidence: 99%

Damping of power swings in large-scale AC power system by simultaneous control of HVDC links and series FACTS devices

Nogal

2013

2013 IEEE Grenoble Conference

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The paper presents the algorithm of a simultaneous control of multiple HVDC links and series FACTS devices (such as phase angle regulator) to improve stability of an AC power system. The purpose of the study is to demonstrate that such stabilizing control, optimal from the perspective of the whole AC power system and insensitive to the loading condition and network configuration (robust control) may be clearly determined mathematically. The proposed method of control was derived using the direct Lyapunov method. The control system is a multi-loop control system using state variables as input signal, activated in the transient state and supplementary to the main steady-state control designed for regulating the power flow. Efficiency of the methods was confirmed with computer simulations. The algorithm perfectly damps the interarea power swings, showing at this very high robustness to changes in network configuration, loading conditions. Moreover, the proposed control produces additive damping i.e. each controlled HVDC line and/or FACTS device contributes to positive damping in AC power system.

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Power system transient stability enhancement by optimal control of static VAR compensators

Cited by 16 publications

References 11 publications

Rotor angle small signal stability assessment in transmission network expansion planning

Rotor angle small signal stability assessment in transmission network expansion planning

Closed-loop stability-enhancing control of shunt FACTS devices using phasor measurements

Damping of power swings in large-scale AC power system by simultaneous control of HVDC links and series FACTS devices

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