Supplementary control for damping power oscillations due to increased penetration of doubly fed induction generators in large power systems

Gautam, Durga; Vittal, Vijay; Harbour, Terry

doi:10.1109/psce.2011.5772501

Cited by 25 publications

(21 citation statements)

References 6 publications

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“…Complex eigenvalues are as follows: λ = σ + ω j (13) Real part of complex eigenvalue describes the system oscillation damping and imaginary part means the oscillation frequency. The oscillation frequency and damping ratio can be expressed as follows:…”

Section: Supplementary Damping Control Of Dfigmentioning

confidence: 99%

A Novel DFIG Damping Control for Power System with High Wind Power Penetration

et al. 2016

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Aiming at the fact that large-scale penetration of wind power will to some extent weaken the small signal stability of power systems, in this paper, the dynamic model of a doubly fed induction generator (DFIG) is established firstly, to analyze the impact of wind generation on power oscillation damping. Then, based on the conventional maximum power point tracking control of variable speed wind turbine, a supplementary control scheme is proposed to increase the damping of power system. To achieve best performance, parameters of the damping control are tuned by using a genetic algorithm. Results of eigenvalue analysis and simulations demonstrate the effectiveness of supplementary damping control with fixed wind speed. At last, due to the problem that fluctuation of output power of wind generators would cause the unstable performance of the DFIG damping controller above, a new algorithm that adapts to the wind variation is added to the supplementary damping control scheme. Results of the simulation show that an improved damping control scheme can stably enhance system damping under various wind speeds and has higher practical value.

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Section: Supplementary Damping Control Of Dfigmentioning

confidence: 99%

A Novel DFIG Damping Control for Power System with High Wind Power Penetration

et al. 2016

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“…This type of wind turbines is not synchronously connected to the grid, hence they do not directly engage in power systems electromechanical oscillations nor do they produce new oscillatory modes [4], [5]. However, with the rapid increment of wind power penetration, DFIG wind turbines can affect the overall damping performance when replacing synchronous machines which are equipped with power system stabilizers (PSSs) [6]. Therefore, damping contribution of installed wind turbines is of significant important and this can be achieved by introducing an auxiliary PSS loop into the DFIG controller [5].…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, several researchers have examined the capability of DFIGs for damping power oscillations [4][5][6][7][8][9][10]. In [6][7][8][9][10] an auxiliary DFIG damping controller within the active power controller is proposed.…”

Section: Introductionmentioning

confidence: 99%

Reactive power control of DFIG wind turbines for power oscillation damping under a wide range of operating conditions

Edrah

Anaya‐Lara

2016

IET Generation, Transmission & Distribution

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This paper analyses the effect of replacing existing synchronous generators equipped with power system stabilizers (PSS) by DFIG based wind farms on the damping of power system oscillations in a multi-machine power system. A power system stabiliser was designed to enhance the capability of DFIG to damp power systems oscillations. The validity and effectiveness of the proposed controller are demonstrated on the widely used New England 10-machine 39-bus test system that combines conventional synchronous generators and DFIG based wind farms using eigenvalue analysis and nonlinear simulation. The nonlinear simulation is used to demonstrate how the damping contribution of DFIG based wind farms is affected by different operating conditions within the same wind farm and stochastic wind speed behaviour. The results show that installing conventional fixed parameters PSS within reactive power control loop of DFIG rotor side converter has a positive damping contribution for a wide range of operating conditions. Furthermore, the results clearly show that DFIG based wind farms equipped with the proposed farm level PSS can damp power system oscillations more effectively than synchronous generators PSS.

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“…The results also mention the impact on the above according to the location of the plants. In a subsequent study [17], the indirect effects of non-synchronous generation in the displacement of the inter-area modes of the system and the damping performance by altering the synchronisation torques and the displacement of synchronous machines is mentioned.…”

Section: Introductionmentioning

confidence: 99%

Influence of the increasing non-synchronous generation on Small Signal Stability

Chamorro

Ghandhari

Eriksson

2014

2014 IEEE PES General Meeting | Conference &Amp; Exposition

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Abstract-The increasing installation of aggregated renewable generation based Full Rated Converters (FRC) in current power systems is modifying their dynamic characteristics. This paper analyses the influence of large scale inclusion of non-synchronous generation through back-to-back Voltage Source Converters' (VSC) connection on power systems, by presenting the dynamic changes on inter-area oscillations in different penetration level cases. The aggregated model of VSC units is assumed. The Small Signal Stability Analysis (SSSA) is used to show the dynamic behaviour and presents the performance of the power systems related to the domain frequency modes in a test grid system. From the analysis, it is shown that the mode shapes and participation factors are displaced according to the penetration levels. Eigenvalue sensitivity analysis according to the inertia is also applied, showing the impact of the large penetration of nonsynchronous generation.

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Supplementary control for damping power oscillations due to increased penetration of doubly fed induction generators in large power systems

Cited by 25 publications

References 6 publications

A Novel DFIG Damping Control for Power System with High Wind Power Penetration

A Novel DFIG Damping Control for Power System with High Wind Power Penetration

Reactive power control of DFIG wind turbines for power oscillation damping under a wide range of operating conditions

Influence of the increasing non-synchronous generation on Small Signal Stability

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