Estimation of Wind Farms Working in Presence of Voltage Dips Using the IEEE Std. 1459-2000.

Reactive power must be measured and watched to verify accomplishment of Spanish grid code requirements in wind farms. However, no definition of reactive power is established in that code. Thus, two reactive power formulations are compared in this paper applied to wind farm generators in presence of transient disturbances such as voltage dips. First reactive power formulation is based on Emanuel's approach, included in the IEEE Standard 1459-2000. Second reactive power formulation has recently been established by Czarnecki. Both formulations express reactive power decomposed into the reactive power due to the reactances and the reactive power caused by the unbalances. This decomposition allows for a better knowledge of wind farms working and to verify the accomplishment of code grids established in several countries. Index Terms-Power measurement; reactive power; standards; wind energy; wind power generation.

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“…It was seen in [1,10] that fundamental-frequency positivesequence reactive power can be expressed as:…”

Section: A Reactive Powers Based On Emanuel's Approachmentioning

confidence: 99%

Verification of the reactive power requirements in wind farms

Leon

Montañana

Roger

et al. 2009

2009 IEEE Bucharest PowerTech

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“…The technology of wind power generation has been rapidly developed and widespread in the world today [1]. The total installed capacity of global wind farm in 2009 was 157.9 million MW and had increased 37.5 million MW more than in 2008.…”

Section: Introductionmentioning

confidence: 99%

A Novel LVRT of Permanent Magnet Direct-Driven Wind Turbine

Liu

Bao

2011

2011 Asia-Pacific Power and Energy Engineering Conference

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The low-voltage ride-through (LVRT) capability of a MW-Level variable speed wind turbine with a direct-driven permanent magnet synchronous generator (PMSG) is a hot topic these days. To prevent over-rated dc-link dynamic voltage, a novel dc-link voltage control scheme is proposed. In this paper comparing with traditional control method, the generator-side converter uses a doubly closed loop namely the inner stator current loop and the outer dc-link voltage loop. Grid-side converter also has dual-loop with inner grid current loop and outer generator speed loop, realizing maximum power point tracking. The simulation results confirm that the new control method can improve the low voltage ride through capability. Keywords-permanent magnet synchronous generator; low-voltage ride-through; dc-link voltageI.

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Active and Reactive Power Formulations for Grid Code Requirements Verification

León-Martínez¹,

Montañana-Romeu²

2011

From Turbine to Wind Farms - Technical Requirements and Spin-Off Products

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Estimation of Wind Farms Working in Presence of Voltage Dips Using the IEEE Std. 1459-2000.

Cited by 3 publications

References 9 publications

Verification of the reactive power requirements in wind farms

Verification of the reactive power requirements in wind farms

A Novel LVRT of Permanent Magnet Direct-Driven Wind Turbine

Active and Reactive Power Formulations for Grid Code Requirements Verification

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