Advanced controls enable wind plants to provide ancillary services

Miller, N.W.; Clark, K.

doi:10.1109/pes.2010.5589787

Cited by 45 publications

(28 citation statements)

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“…Only fixed speed wind turbines are assumed to have an inertial contribution; however, this trend may change in future with new designs of variable speed wind turbines (Miller and Clark, 2010).…”

Section: White-box Load Inertia Estimationmentioning

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

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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: White-box Load Inertia Estimationmentioning

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

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“…Both [39] and [21] use the previously mentioned method of quickly increasing torque in response to grid frequency falling, which thus causes a deceleration of the rotor speed and is called "Kinetic Energy Control I (KEC I)" and "GE WindINERTIA," respectively. While some variation of KEC I is the most intuitive method for inertial response emulation, [39] goes on to propose another method called "Kinetic Energy Control II (KEC II)," which allows the rotor to accelerate initially before applying the higher torque.…”

Section: A Inertial and Primary Responsementioning

confidence: 99%

A tutorial of wind turbine control for supporting grid frequency through active power control

Aho

Buckspan

Laks

et al. 2012

2012 American Control Conference (ACC)

217

166

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Abstract-As wind energy becomes a larger portion of the world's energy portfolio and wind turbines become larger and more expensive, wind turbine control systems play an ever more prominent role in the design and deployment of wind turbines. The goals of traditional wind turbine control systems are maximizing energy production while protecting the wind turbine components. As more wind generation is installed there is an increasing interest in wind turbines actively controlling their power output in order to meet power setpoints and to participate in frequency regulation for the utility grid. This capability will be beneficial for grid operators, as it seems possible that wind turbines can be more effective at providing some of these services than traditional power plants. Furthermore, establishing an ancillary market for such regulation can be beneficial for wind plant owner/operators and manufacturers that provide such services. In this tutorial paper we provide an overview of basic wind turbine control systems and highlight recent industry trends and research in wind turbine control systems for grid integration and frequency stability.

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“…The possibility of using renewable energy sources also for providing ancillary services appeared only recently in the technical literature, because switching power converters are normally devoted to regulate the injection of power into the grid in order to maximize the energy delivered by the renewable source. In case of wind turbines, the ancillary services proposed have been the compensation of reactive power [3] and the governor response [4]. Also some controls for harmonic compensation have been proposed, though the renewable source considered is generic and no comments are reported in the proper selection of the active power reference for each specific technology [5,6].…”

Section: Introductionmentioning

confidence: 99%

A Photovoltaic Power Unit Providing Ancillary Services for Smart Distribution Networks

Filgueira-Vizoso

Piegari

Tricoli

2024

RE&PQJ

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Abstract. This paper deals with grid-connected photovoltaic (PV) power plants for supplying ancillary services to the distribution grid. The power converter, interfacing the photovoltaic system with the grid, can be controlled in order to achieve both the primary goal of power generation and the chosen ancillary services. In particular, in the paper, a power converter configuration with an opportune control algorithm is suggested; they make the photovoltaic system capable of generating the maximum power available from the solar source and, at the same time, capable of contributing to the voltage regulation of the grid and to the suppression of the current harmonics absorbed by loads close to the system. The control strategy is then applied to a sample grid-connected PV unit, simulated in Matlab Simulink environment. Numerical results, showing the effectiveness of the proposed solution, are reported.

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Advanced controls enable wind plants to provide ancillary services

Cited by 45 publications

References 0 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

A tutorial of wind turbine control for supporting grid frequency through active power control

A Photovoltaic Power Unit Providing Ancillary Services for Smart Distribution Networks

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