Optimum Generation Control in Wind Parks When Carrying Out System Operator Requests

Almeida, Ricardo M. S. F.; Castronuovo, Edgardo D.; Lopes, João

doi:10.1109/tpwrs.2005.861996

Cited by 307 publications

(174 citation statements)

References 9 publications

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“…The pitch control and control of the static converters are used to adjust the rotor speed to its optimum value for the required optimum power operation. The measurement wind speed is inaccurate and reliable due to the influences of the rotor effects in the real value of the wind speed [68]. The authors suggested using a combination of rotor speed control and pitch angle control in the low rated rotor speed region simultaneously [69].…”

Section: De-loading Techniques Usedmentioning

confidence: 99%

Frequency Regulation Strategies in Grid Integrated Offshore Wind Turbines via VSC-HVDC Technology: A Review

2017

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Abstract:The inclusion of wind energy in a power system network is currently seeing a significant increase. However, this inclusion has resulted in degradation of the inertia response, which in turn seriously affects the stability of the power system's frequency. This problem can be solved by using an active power reserve to stabilize the frequency within an allowable limit in the event of a sudden load increment or the loss of generators. Active power reserves can be utilized via three approaches: (1) de-loading method (pitching or over-speeding) by a variable speed wind turbine (VSWT); (2) stored energy in the capacitors of voltage source converter-high voltage direct current (VSC-HVDC) transmission; and (3) coordination of frequency regulation between the offshore wind farms and the VSC-HVDC transmission. This paper reviews the solutions that can be used to overcome problems related to the frequency stability of grid-integrated offshore wind turbines. It also details the permanent magnet synchronous generator (PMSG) with full-scale back to back (B2B) converters, its corresponding control strategies, and a typical VSC-HVDC system with an associated control system. The control methods, both on the levels of a wind turbine and the VSC-HVDC system that participate in a system's primary frequency control and emulation inertia, are discussed.

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Section: De-loading Techniques Usedmentioning

confidence: 99%

Frequency Regulation Strategies in Grid Integrated Offshore Wind Turbines via VSC-HVDC Technology: A Review

2017

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“…In variable speed wind turbines (VSWTs), in addition to pitch control, rotor speed control can also be used to run a wind turbine with a reduced load to maintain a reserve capacity [4].…”

Section: B Output Regulation Through Rotor Speed Controlmentioning

confidence: 99%

Dispatch strategy to minimise uncertainty in wind power generation in the Australian national electricity market

Wickramasinghe

Meegahapola

Agalgaonkar

et al. 2014

2014 Australasian Universities Power Engineering Conference (AUPEC)

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Abstract2014 ACPE. With increased penetration of wind power, scheduling generators to meet the forecast demand of a power system is becoming an increasingly challenging task for the system operators. Uncertainty associated with the generation expected from wind plants adds to the load demand uncertainty, making it necessary to retain additional reserves to maintain the balance between demand and supply of power. In the Australian national electricity market (NEM), sophisticated wind forecasting techniques are employed to reduce the uncertainty in wind generation. Despite being able to project the contribution of wind power to a reasonable accuracy, wind power plants are currently not considered to be dispatchable resources in the NEM. This paper discusses the possibility of assigning firm generation responsibilities to wind plants, especially in a dynamic electricity markets as the NEM, where the generation scheduling happens between five to ten minutes ahead of actual dispatch. Abstract-With increased penetration of wind power, scheduling generators to meet the forecast demand of a power system is becoming an increasingly challenging task for the system operators. Uncertainty associated with the generation expected from wind plants adds to the load demand uncertainty, making it necessary to retain additional reserves to maintain the balance between demand and supply of power. In the Australian national electricity market (NEM), sophisticated wind forecasting techniques are employed to reduce the uncertainty in wind generation. Despite being able to project the contribution of wind power to a reasonable accuracy, wind power plants are currently not considered to be dispatchable resources in the NEM. This paper discusses the possibility of assigning firm generation responsibilities to wind plants, especially in a dynamic electricity markets as the NEM, where the generation scheduling happens between five to ten minutes ahead of actual dispatch.

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“…During transient conditions, additional controllers could be installed on the converters or pitch controllers to achieve fast active power controls [21][22][23][24][25][26][27][28]. In some studies, variable-speed wind generators could transiently support system frequency by implementing kinetic energy-based active power control techniques such as "hidden" inertia emulation, fast power reserve emulation, inertia droop control, etc.…”

Section: Fast Active Power Control Of Wind Generatorsmentioning

confidence: 99%

Wind/PV Generation for Frequency Regulation and Oscillation Damping in the Eastern Interconnection

Liu

Gracia

Hadley

et al. 2013

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Optimum Generation Control in Wind Parks When Carrying Out System Operator Requests

Cited by 307 publications

References 9 publications

Frequency Regulation Strategies in Grid Integrated Offshore Wind Turbines via VSC-HVDC Technology: A Review

Frequency Regulation Strategies in Grid Integrated Offshore Wind Turbines via VSC-HVDC Technology: A Review

Dispatch strategy to minimise uncertainty in wind power generation in the Australian national electricity market

Wind/PV Generation for Frequency Regulation and Oscillation Damping in the Eastern Interconnection

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