Utilisation of kinetic energy from wind turbine for grid connections: a review paper

Wang, Dongxiao; Gao, Xiaodan; Meng, Ke; Qiu, Jing; Lai, Loi Lei; Gao, Sen

doi:10.1049/iet-rpg.2017.0590

Cited by 32 publications

(19 citation statements)

References 87 publications

(187 reference statements)

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“…Intuitively, the wind turbine's aerodynamic characteristics and output power can be obtained by adjusting the rotor speed. If the turbine, gearbox, shafts and generator are lumped together into an equivalent mass H tot , one-mass transmission can be represented by a first-order model with dynamic power as Equation (1) [27]:…”

Section: Doubly Fed Wind Turbine Structurementioning

confidence: 99%

A Distributed Cooperative Control Strategy of Offshore Wind Turbine Groups with Input Time Delay

et al. 2020

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With large-scale development of offshore wind power and the increasing scale of power grid interconnection, more and more attention has been drawn to the stable operation of wind power units. When the wide area measurement system (WAMS) is applied to the power system, the time delay mainly occurs in the signal measurement and transmission of the power system. When 10MW wind turbines transmit information through complex communication network, time delay often exists, which leads to the degradation of performance and instability for system. This affects the normal operation of a wind farm. Therefore, in this paper, the distributed control problem of doubly fed wind turbines with input time delay is studied based on the Hamiltonian energy theory. Firstly, the Port-controlled Hamiltonian system with Dissipation (PCH-D) model is implemented with the Hamiltonian energy method. Then, the Casimir function is introduced into the PCH-D model of the single wind turbine system to stabilize the time delay. The wind turbine group is regarded as one network and the distributed control strategy is designed, so that the whole wind turbine cluster can remain stable given a time delay occurring in the range of 30-300 ms. Finally, simulation results show that the output power of the wind turbine cluster with input delay converges to the expected value rapidly and remains stable. Additionally, the system error caused by time delay is greatly reduced. This control method can effectively solve the problem of input time delay and improve the stability of the wind turbine cluster. Moreover, the method proposed in this paper can adopt the conventional time step of dynamic simulation, which is more efficient in calculation. This method has adaptability in transient stability analysis of large-scale power system, however, the third-order mathematical model used in this paper cannot be used to analyze the internal dynamics of the whole power converter.

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Section: Doubly Fed Wind Turbine Structurementioning

confidence: 99%

A Distributed Cooperative Control Strategy of Offshore Wind Turbine Groups with Input Time Delay

et al. 2020

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“…In the doubly fed wind turbine, if the windmill, gearbox, shafts and generator are lumped together into an equivalent mass H tot , one-mass transmission can be represented by a first-order model with dynamic power [25]:…”

Section: Hamiltonian Model Of Doubly Fed Wind Turbinementioning

confidence: 99%

L2 Disturbance Suppression Controller Design for Multiple Time Delays Offshore Wind Turbines

et al. 2020

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With the large-scale development of offshore wind power and the rapid development of smart grid, more and more attention has been paid to the stable operation of wind turbines under various conditions. In the actual operation process of wind turbines, there are inevitably many kinds of uncertain time delays, and also external or parameter disturbances, which affect the stable operation of wind turbines and make the system deviate from the original stable state. Based on Hamiltonian energy theory, the disturbance rejection of doubly fed wind turbines with multiple time delays is studied in this paper. Firstly, the doubly fed wind turbine is Hamiltonian realized to obtain its port controlled Hamiltonian with dissipation(PCH-D) model. Then, aiming at the PCH-D model, a multiple time delays controller is designed based on Casimir function, which can make wind turbines run stably under multiple time delays. Furthermore, based on the passive control theory, L2 gain disturbance rejection control technology is introduced to eliminate the steady-state error caused by external disturbance and improve the stability of wind turbines. Finally, the simulation results show that the proposed controller can effectively solve the multiple time delays and disturbance problems in the system, and improve the stability and anti-interference of wind turbines. INDEX TERMS Offshore wind power, doubly fed wind turbines, multiple time delays, Hamiltonian energy theory, Casimir function, L2 disturbance attenuation.

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“…In SCESS-DFIG, the power of RSC (PSD_RSC) and the power of GSC (PSD_GSC) are no longer the same. The power relations among the multi-converters (RSC, GSC, DC-DC) are shown in (2). PSC is the power of super capacitor.…”

Section: A Scess-dfig Topology and Power Flow Analysis Under Differementioning

confidence: 99%

“…With the increase of the penetration of wind power, its operation characteristics make it lack the inertia response, primary frequency regulation and other functions of conventional synchronous generator set. This weakens the stability of the grid [1,2] .…”

Section: Introductionmentioning

confidence: 99%

Research on SCESS-DFIG DC Bus Voltage Fluctuation Suppression Strategy for Frequency Inertia Regulation of Power Grid

et al. 2020

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The doubly fed induction generator with super capacitor is helpful to enhance the system inertia. At the same time, its structural characteristics are more suitable for the power grid topology without communication lines. However, the change of its topology also brings some problems. In this paper, when SCESS-DFIG is participating in frequency regulation, DC bus voltage fluctuation caused by power imbalance of multiple converters is studied. The dynamic power response of super capacitor with DC-DC converter is a step load for grid side converter. The load of DC bus is nonlinear and random, so the balance and stability of the original system will change accordingly. Because of the complex topology and system composition of the doubly fed induction generator with super capacitor, the conventional feed-forward compensation control strategy can not be used to improve its dynamic response speed. Therefore, this paper designs a control strategy which is applied for DC bus voltage fluctuation of the doubly fed induction generator with super capacitor. The theory proposed in this paper is verified by simulation model and experiment.

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Utilisation of kinetic energy from wind turbine for grid connections: a review paper

Cited by 32 publications

References 87 publications

A Distributed Cooperative Control Strategy of Offshore Wind Turbine Groups with Input Time Delay

A Distributed Cooperative Control Strategy of Offshore Wind Turbine Groups with Input Time Delay

L2 Disturbance Suppression Controller Design for Multiple Time Delays Offshore Wind Turbines

Research on SCESS-DFIG DC Bus Voltage Fluctuation Suppression Strategy for Frequency Inertia Regulation of Power Grid

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