Active power control under Grid Code constraints for a tidal farm

Alamir, Mazen; Fiacchini, Mirko; Chabane, Sofiane Ben; Bacha, Seddik; Kovaltchouk, Thibaut

doi:10.1109/ever.2016.7476415

Cited by 7 publications

(10 citation statements)

References 4 publications

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“…The control is based on the solution of a linear programming problem. The present paper extends the results obtained in [21] by considering, in addition to the Grid Code in the active/reactive power plan, the Grid Code requirements in the voltage/reactive power plan including a primary control of the voltage and the active/reactive power losses of the farm. These power losses are due to cable losses by Joule effect and the presence of transformers in the farm.…”

mentioning

confidence: 63%

“…. , n h , an integer N saut = 10 is used as well as the translation of one time series defined in [21]. This is done as follow:…”

Section: Simulation Resultsmentioning

confidence: 99%

“…This section summarizes the constraints on achievable power and grid-like set of constraints in (P, Q) plan (see [21] for details).…”

Section: Constraintsmentioning

confidence: 99%

“…Preliminary results are obtained by considering the Grid Code requirements in the active/reactive power plan without considering the power losses in the farm [21]. The control is based on the solution of a linear programming problem.…”

mentioning

confidence: 99%

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Electricity Grid Connection of a Tidal Farm: An Active Power Control Framework Constrained to Grid Code Requirements

Chabane

Alamir

Fiacchini

et al. 2018

IEEE Trans. Sustain. Energy

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Abstract-This paper focuses on connecting tidal turbine farms to the French electrical grid. One tidal farm is considered, which is the commercial farm. The connection state is defined by the active power and the voltage at the common coupling point (PCC, also called the delivery point), and is constrained to respect the Grid Code requirements. In order to ensure this connection, this paper develops an active power control framework constrained to the requirements of the Grid Code. This framework is based on the solution of a quadratic programming problem to meet the power demand at the PCC while respecting the requirements of the Grid Code in different plans. As the farm will be installed at the ocean depths, several kilometers of cables will be used to transport the electricity up to the PCC then the power losses are also taken into account in this framework. This framework is applied to a commercial farm with realistic data to show his relevance and effectiveness.

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mentioning

confidence: 63%

“…. , n h , an integer N saut = 10 is used as well as the translation of one time series defined in [21]. This is done as follow:…”

Section: Simulation Resultsmentioning

confidence: 99%

“…This section summarizes the constraints on achievable power and grid-like set of constraints in (P, Q) plan (see [21] for details).…”

Section: Constraintsmentioning

confidence: 99%

mentioning

confidence: 99%

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Electricity Grid Connection of a Tidal Farm: An Active Power Control Framework Constrained to Grid Code Requirements

Chabane

Alamir

Fiacchini

et al. 2018

IEEE Trans. Sustain. Energy

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“…Many ocean energy technologies have emerged to exploit this resource, especially for tidal and wave conversion systems. Both technologies are predicted to contribute the most to the European energy platform in the short to medium term (2025-2030) [4,5]. However, the majority of ocean energy-related industries are still in the early stage of development, ranging from theory, design, up to the demonstration phases [6].…”

Section: Introductionmentioning

confidence: 99%

ANN-Based Airflow Control for an Oscillating Water Column Using Surface Elevation Measurements

M’zoughi

Garrido

et al. 2020

Sensors

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Oscillating water column (OWC) plants face power generation limitations due to the stalling phenomenon. This behavior can be avoided by an airflow control strategy that can anticipate the incoming peak waves and reduce its airflow velocity within the turbine duct. In this sense, this work aims to use the power of artificial neural networks (ANN) to recognize the different incoming waves in order to distinguish the strong waves that provoke the stalling behavior and generate a suitable airflow speed reference for the airflow control scheme. The ANN is, therefore, trained using real surface elevation measurements of the waves. The ANN-based airflow control will control an air valve in the capture chamber to adjust the airflow speed as required. A comparative study has been carried out to compare the ANN-based airflow control to the uncontrolled OWC system in different sea conditions. Also, another study has been carried out using real measured wave input data and generated power of the NEREIDA wave power plant. Results show the effectiveness of the proposed ANN airflow control against the uncontrolled case ensuring power generation improvement.

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Fuzzy Gain Scheduled-Sliding Mode Rotational Speed Control of an Oscillating Water Column

M’zoughi

Garrido

et al. 2020

IEEE Access

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The generated power of Oscillating Water Columns (OWC) based on Wells turbines is limited due to the stalling behavior. Therefore, this paper presents the modeling of an OWC and a rotational speed control using a novel Fuzzy Gain Scheduled-Sliding Mode controller (FGS-SMC) for a stalling-free operation. The proposed SMC-rotational speed control will regulate the turbo-generator angular velocity to avoid the stalling behavior and increase the generated power. In an effort to reduce the fluctuations in the generated power, Fuzzy Logic Supervisors (FLS) were designed to adaptively schedule the switching gains of the SMC controller to reduce the chattering and improve its performance. A comparative study has been carried out between the FGS-SMC, the SMC and uncontrolled OWC using irregular waves and real measured waves. Results show the effectiveness of the proposed controls against the uncontrolled case and the superior performance of FGS-SMC over the SMC ensuring power generation improvement.INDEX TERMS Back-to-back converter, fuzzy gain scheduling (FGS), sliding mode control (SMC), oscillating water column (OWC), power generation, stalling behavior, wave energy, wells turbine.

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Active power control under Grid Code constraints for a tidal farm

Cited by 7 publications

References 4 publications

Electricity Grid Connection of a Tidal Farm: An Active Power Control Framework Constrained to Grid Code Requirements

Electricity Grid Connection of a Tidal Farm: An Active Power Control Framework Constrained to Grid Code Requirements

ANN-Based Airflow Control for an Oscillating Water Column Using Surface Elevation Measurements

Fuzzy Gain Scheduled-Sliding Mode Rotational Speed Control of an Oscillating Water Column

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