Output power control for large wind power penetration in small power system

Senjyu, Tomonobu; Kaneko, Toshiaki; Uehara, Akie; Yona, Atsushi; Sekine, Hideomi; Kim, Chul‐Hwan

doi:10.1016/j.renene.2009.04.004

Cited by 27 publications

(12 citation statements)

References 4 publications

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“…The '*' represents the commanded values for the different powers. There is a well known frequency control method for an isolated power system which is the flat frequency control (FFC) method [28,29]. The FFC contains an integral control loop which can lessen the frequency deviation, Df.…”

Section: An Integrated Small Power Systemmentioning

confidence: 99%

“…The pitch angle control system will be discussed later in this section. The fraction of extracted wind power converted to the mechanical power of the rotor, P w , is calculated as follows [12,28,29]:…”

Section: An Integrated Small Power Systemmentioning

confidence: 99%

“…15(e)e(h), respectively. As for the state of charge, a proper range is required for a stable operation [28]. In this paper, the margin band is assumed AE20% as shown in Fig.…”

Section: Reduction Of Battery Capacitymentioning

confidence: 99%

See 2 more Smart Citations

A minimal order observer based frequency control strategy for an integrated wind-battery-diesel power system

Howlader

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et al. 2012

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Section: An Integrated Small Power Systemmentioning

confidence: 99%

Section: An Integrated Small Power Systemmentioning

confidence: 99%

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A minimal order observer based frequency control strategy for an integrated wind-battery-diesel power system

Howlader

Izumi

Uehara

et al. 2012

Energy

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“…The small power system model that consisted of the diesel generator, the WTG system and the load is shown in Figure 2. [11][12][13] The diesel generator and the WTG system feed power to the load. As a frequency control method of power systems, the fl at frequency control (FFC) method, which is used in the majority of stand-alone power systems, is adopted.…”

Section: Small Power Systemmentioning

confidence: 99%

A new control methodology of wind turbine generators for frequency control of power system in isolated island

Kaneko¹,

Uehara²,

Yona³

et al. 2010

Wind Energy

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A wind turbine generator (WTG) system's output is not constant and fl uctuates depending on wind conditions. Fluctuating power causes frequency deviations and adverse effects to an isolated power system when large output power from WTG systems is penetrated in the power system. This paper presents an output power control methodology of a WTG for frequency control using a load power estimator. The load power is estimated by a disturbance observer, and the output power command of the WTG is determined according to the estimated load. Besides, the WTG can also be controlled during wind turbulence since the output power command is determined by considering wind conditions. The reduction of the power system frequency deviation by using the WTG can be achieved by the proposed method. The effectiveness of the proposed method is validated by numerical simulations. the output power control of the WTG is reduction of the frequency deviation. However, the focus of those reports is not directly on frequency control. In addition, for the effective utilization of the potential capability of the WTG, the strategy of the conventional output power smoothing is not a good provision. Therefore, there is need for achieving the power system frequency control by using the active output power control of the WTG. New control methodology for WTG for frequency control T. Kaneko et al. 408Under these circumstances, we are focusing on the frequency control of the small power system, and this paper presents an output power control methodology of the WTG for frequency control using a load power estimator. The load power is estimated by a disturbance observer, and the output power of the WTG is controlled by using the pitch angle control. The output power command for the WTG is determined according to the estimated load. In addition, wind speed condition is also considered, and thus, the proposed method ensures good control during wind turbulence. Moreover, the high-performance pitch angle control based on the output power command can be achieved by the generalized predictive control (GPC). The effectiveness of the GPC is shown in a previous work. 6 The reduction of the power system frequency deviation by the WTG can be achieved by using the proposed method. Simulation results by using an actual detailed model of the WTG show the effectiveness of the proposed method.This paper is organized as follows: in Section 2, the small power system model and the WTG model are given; in Section 3, a new control methodology of the WTG for frequency control is outlined; in Section 4, simulation results with the load power change and wind turbulence are explained to confi rm the effectiveness of the proposed method. Finally, the conclusion is drawn in Section 5.

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“…With the increasing scale of wind farms in terms of planning, construction and operation, the penetration of wind power in electrical power systems gradually increases; therefore, it is necessary to determine the interactions between wind farms and the connected power system to ensure the secure and reliable operation of wind farms [1][2][3]. However, a large-scale wind farm is usually composed of tens or hundreds of individual WTGSs.…”

Section: Introductionmentioning

confidence: 99%

Aggregated models and transient performances of a mixed wind farm with different wind turbine generator systems

Yang

Zhao

et al. 2012

Electric Power Systems Research

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Output power control for large wind power penetration in small power system

Cited by 27 publications

References 4 publications

A minimal order observer based frequency control strategy for an integrated wind-battery-diesel power system

A minimal order observer based frequency control strategy for an integrated wind-battery-diesel power system

A new control methodology of wind turbine generators for frequency control of power system in isolated island

Aggregated models and transient performances of a mixed wind farm with different wind turbine generator systems

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