Validation of Fixed Speed Induction Generator Models for Inertial Response Using Wind Farm Measurements

Kennedy, Jason; Fox, B.; Littler, Timothy; Flynn, Damian

doi:10.1109/tpwrs.2010.2081385

Cited by 39 publications

(19 citation statements)

References 11 publications

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“…15-min resolution data of actual power from each wind farm is used to identify the online wind farms for a particular event and estimate the number of online FSIGs. An assumed inertial constant of 3 MWs/MVA is applied for FSIGs, which have essentially a slower response to frequency decline compared with synchronous generators (Kennedy, et al, 2011). The per unit base for the overall system inertial constant is the sum of the apparent power of all online generators for each event, while the load inertial constant is based on the all-island system demand.…”

Section: Load Inertia Estimation Of Irish Power Systemmentioning

confidence: 99%

“…A greater contribution from DC interconnectors is also more likely, which don't naturally contribute to system overall inertia. As a result, the ROCOF in a system is likely to increase and frequency control strategies could face another limiting factor (Doherty, et al, 2010;Kennedy, et al, 2011). With variable speed wind turbines, the turbinegenerator inertia is decoupled from the power system, thus further exacerbating the issue of reduced system inertia (Ruttledge and Flynn, 2011).…”

Section: Introductionmentioning

confidence: 99%

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Load Inertia Estimation Using White and Grey-Box Estimators for Power Systems with High Wind Penetration

Tavakoli

Power

Ruttledge

et al. 2012

IFAC Proceedings Volumes

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The increasing penetration of wind farms in power systems has increased concerns over the frequency behaviour and control of synchronous power systems due to a low contribution from modern wind turbines to overall system inertia. With this trend of conventional generators being displaced by variable speed wind turbines, the contribution from load inertia becomes more significant. The need for greater consideration towards load inertia estimation, or even on-line tracking of load inertia, seems to be required. A white-box method for estimation of load inertia is examined using system frequency and generator output power signals from previous generator forced outages. A grey-box identification method is also applied to estimate the inertia of synchronous generators. The impact of sampling rates, time shifting and signal averaging on parameter estimation is also considered. The method is shown to be robust enough to be applied for load inertia estimation in control centres.

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Section: Load Inertia Estimation Of Irish Power Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Load Inertia Estimation Using White and Grey-Box Estimators for Power Systems with High Wind Penetration

Tavakoli

Power

Ruttledge

et al. 2012

IFAC Proceedings Volumes

Self Cite

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show abstract

“…The result can be explained using Table II, for the participation factors of the series compensation capacitor in the 1,2 λ mode are zero. It can be seen that the compensation degree will not influence the natural frequency of the shaft.…”

Section: ) Effect Of Series Compensation Capacitorsmentioning

confidence: 99%

“…In addition, more than 20% of global electricity is predicted to be supplied by wind power by 2030 [1]. Various topologies of wind turbines have been developed, mainly including fixed speed induction generator (FSIG), doubly fed induction generator (DFIG) and permanent magnet synchronous generator (PMSG) system [2][3][4]. The large-scale of wind turbine generators (WTGs) is raising severe concerns on the interaction between their mechanical and electrical systems.…”

Section: Introductionmentioning

confidence: 99%

Small-signal Modeling and Modal Analysis of a PMSG-based Wind Power System

Wu¹,

Xie²,

Zhao³

et al. 2017

dtmse

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A unified small-signal model of a wind power system is developed in this paper to study the small-signal stability of permanent magnet synchronous generator (PMSG)-based wind turbines connected to the power grid. The model is composed of both mechanical system and electrical system. A two-mass shaft model for the mechanical system is provided to analyze the dynamic and steady state behaviors. Meanwhile, PMSG, converter system and transmission line of the electrical system are modeled separately to build a unified small-signal model of the PMSG-based wind power system. Then, based on the unified small-signal model, eigenvalue analysis for the whole system is presented, which helps discover the relation between different modes and state variables. Cases involving various series compensation degrees, length of transmission lines and the stiffness of shafts are carried out to study how the modes are influenced by relevant variables specifically. The relatively independent modules of the unified small-signal model allow for easy expansion and modification for various research purposes. The simulation results show that the mechanical and electrical systems of PMSG-based wind turbines are independent to some degree with the implementation of a full-scale converter system.

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“…These models and parameters are always integrated into PSASP (Power System Analysis Software Package, developed by China EPRI), which is a widely used power system analysis program in China [7]- [9]. DIgSILENT PowerFactory is a popular power system analysis software package around the world [10]- [13]. Comparison of different power system simulation software for studies on related problems is of importance to know the software's modeling capabilities and limitations [14], and can be used to validate models.…”

Section: Introductionmentioning

confidence: 99%

Modeling Comparison on Control System of Synchronous Generator between DIgSILENT Power Factory and PSASP

Zhao¹,

Zhu²,

Jiang³

et al. 2013

IJCEE

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Abstract-PSASP is a widely used power system analysis program in China, and it provides various measured models and corresponding parameters of synchronous generator's control system. DIGSILENT Power Factory is a popular power system analysis software package around the world. In this paper, some commonly used models in PSASP are established in DIGSILENT Power Factory. The contrast effect is implemented by conducting small perturbation and large disturbance in a two-area four-machine system at last.Index Terms-DIgSILENT power factory, PSASP, automatic voltage regulator (AVR), power system stabilizer (PSS), speed governor (GOV)

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Validation of Fixed Speed Induction Generator Models for Inertial Response Using Wind Farm Measurements

Cited by 39 publications

References 11 publications

Load Inertia Estimation Using White and Grey-Box Estimators for Power Systems with High Wind Penetration

Load Inertia Estimation Using White and Grey-Box Estimators for Power Systems with High Wind Penetration

Small-signal Modeling and Modal Analysis of a PMSG-based Wind Power System

Modeling Comparison on Control System of Synchronous Generator between DIgSILENT Power Factory and PSASP

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