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

Abstract

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.

Dimensioning Methodology of an Energy Storage System Based on Supercapacitors for Grid Code Compliance of a Wave Power Plant

“…Several solutions for solving this issue have been proposed in the literature, including advanced control strategies [18][19][20] and proper WECs location in the wave energy farm [21]. In [22] an active control for a tidal turbine is developed to grid code requirements in terms of active and reactive powers (P, Q) and, conversely, the voltage at the point of common coupling and reactive power (U, Q). However, the most promising solution for solving power quality issues, which encompass the vast majority of articles of this topic, is the utilization of an energy storage system (ESS) for a combined operation together with the wave energy farm.…”

A Wavelet Threshold Denoising-Based Imbalance Fault Detection Method for Marine Current Turbines

“…In recent years, with the increasing energy consumption around the world and the sharp increase of environmental pollution, marine energy has attracted more and more attention around the world due to its high energy density, predictability and relative stability [1]- [3]. Marine current power generation is becoming more attractive and competitive [4], [5], and its technology has made great progress [6], as proved by the number of projects using marine current turbines (MCTs) [7]. It is foreseeable that MCTs will become more and more important in power supply systems [8].…”