Grid code compliance and ancillary services provision from DFIG and FRC-based wind turbines

Michas, Marios; Ugalde‐Loo, Carlos E.; Jenkins, Nick

doi:10.1109/upec.2016.8114012

Cited by 6 publications

(4 citation statements)

References 18 publications

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“…An ideal ac voltage source and a phase reactor were used to represent the grid. For the VSC control, a phase‐locked loop was used to measure the frequency of the grid, an inner loop for the control of the current in the dq frame and an outer loop to control voltage

V_{b}

and fix it at 400 V. The control of the grid‐side VSC is described in detail in [37]. Details on the turbine dimensions, the gearing ratio of the drive‐train, the estimated inertia of the system, the generator and the grid of the full‐scale system are given in Table 1.…”

Section: Simulation and Experimental Resultsmentioning

confidence: 99%

Maximum power extraction from a hydrokinetic energy conversion system

Michas

Ugalde‐Loo

Ming

et al. 2019

IET Renewable Power Generation

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Hydrokinetic energy conversion systems capture the power available in the water flowing in waterways. An electrical interface for the power takeoff of a hydrokinetic energy conversion system was designed and a control strategy for the maximum power extraction was investigated. A laboratory prototype was used for the experimental characterisation of the system. High efficiencies were observed because of the restricted flow conditions. The power curves obtained from the experimental results were used for the simulation of the system in MATLAB/Simulink. A 'perturb and observe' method was used for the maximum power point tracking (MPPT). A control scheme based on a heuristic algorithm suitable for restricted and turbulent water flows was developed. A practical advantage of this scheme is that it does not require the use of mechanical sensors. The MPPT of the laboratory prototype was simulated and experimental validation undertaken, with simulation and experimental results agreeing well. The MPPT of a full-scale hydrokinetic energy conversion system was simulated to assess its performance towards practical deployment.

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V_{b}

Section: Simulation and Experimental Resultsmentioning

confidence: 99%

Maximum power extraction from a hydrokinetic energy conversion system

Michas

Ugalde‐Loo

Ming

et al. 2019

IET Renewable Power Generation

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“…The DFIG control systems have two portions: mechanical control for wind turbine blade pitch angle and electrical control for DFIG. The controlling of DFIG is achieved through the control of voltage frequency converter (AC/DC/AC) that further consists of control of grid side coveter (GSC) & control of rotor side coveter (RSC) [45,46]. The main aims of control systems are [46]:…”

Section: Methodsmentioning

confidence: 99%

“…The controlling of DFIG is achieved through the control of voltage frequency converter (AC/DC/AC) that further consists of control of grid side coveter (GSC) & control of rotor side coveter (RSC) [45,46]. The main aims of control systems are [46]:…”

Section: Methodsmentioning

confidence: 99%

Islanding Detection Strategy for Wind Farm Based on Performance Analysis of Passive Indices Having Negligible NDZ

Shafique¹,

Raza²,

Munir

et al. 2021

Applied Sciences

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Distributed generation (DG) resources integration into power system results in environmental and economic benefits. However, technical challenges may create many problems for the distribution system. Islanding detection is the topmost technical perspective regarding distribution system protection. This paper devised a passive islanding detection strategy that employed voltage phase angle (VPA). The VPA is selected after the performance assessment of 6 passive indices. Comparative study proves that VPA has the best accuracy and sensitivity compared to other indices parameters. The proposed technique is employed on a generic system that easily distinguished islanding situations from non-islanding cases such as load increment, load decrement, capacitor energization, capacitor de-energization, motor starting, motor unloading and various types of faults switching scenarios. The protective method is simple and has a quick interpretation algorithm as compared to other existing methods. The study is carried out on IEEE 1547 general test system in MATLAB/SIMULINK environment. The proposed strategy has nearly zero non-detection zone.

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“…The main requirements of the Kosovo GC concerning the dynamic stability of the PS are evaluated in [15]. The inertial response of United Kingdom PS is investigated in [16] and a comparison of wind turbines technologies regarding the compliance with GC requirements is carried out.…”

Section: Introductionmentioning

confidence: 99%

Impact of renewable energy sources technologies on power system stability: a Moroccan case study

Drhorhi¹,

Fadili²

2022

IJPEDS

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<p>Most countries of the world have adopted renewable energy sources (RES) because of consistent policy and industry support. The use of these sources is expanding and will cover a larger part of the generation capacity in the future. Thus, power systems (PS) are experiencing the high scale RES integration. For a power system dominated by RES, the electrical grid characteristics, namely, the inertia constant (Hs) and the rate of change of frequency (ROCOF), should be evaluated. Furthermore, the requirements related to these characteristics should be specified in the grid code (GC) to reflect the actual needs of the transmission system operator (TSO) and to prepare the evolution of the RES penetration level. Due to the delay in specifying or updating these GC requirements, RES that are incorporating unsuitable functionalities for the future perspective, regarding fault-ride-through (FRT) and frequency support requirements, will remain operational by 2030; this will create additional constraints on the PS frequency stability after large-scale RES integration. In this paper, the impact assessment of deployed RES technologies on the Moroccan PS frequency stability is assessed by the year 2030, using MATLAB/Simulink environment. The main reason for focusing on the case study of Morocco is the country’s target of installing 52% of the energy supply from RES in the horizon of 2030.</p>

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Grid code compliance and ancillary services provision from DFIG and FRC-based wind turbines

Cited by 6 publications

References 18 publications

Maximum power extraction from a hydrokinetic energy conversion system

Maximum power extraction from a hydrokinetic energy conversion system

Islanding Detection Strategy for Wind Farm Based on Performance Analysis of Passive Indices Having Negligible NDZ

Impact of renewable energy sources technologies on power system stability: a Moroccan case study

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