Protective relaying applied to large wind plant collector systems

Henriksen, L.; Kumm, John

doi:10.1109/tdc.2008.4517239

Cited by 3 publications

(1 citation statement)

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“…In [10], the design and evaluation of a protection relay for a wind farm with fixed-speed induction generators were proposed. Reference [12] discusses protective relaying for large wind generation plant collector systems; several important protections in a wind farm was discussed, including transmission line protection, collection station transformer protection, collector feeder protection, substation power factor correction capacitor protection and dynamic VAR system feeder protection. Reference [13] investigates the effects of wind turbines on the new optimal coordination of directional over-current relays in power systems, in which the different effects of over-current relays are considered and a systematic approach to include their effects is illustrated.…”

Section: Introductionmentioning

confidence: 99%

Adaptive Setting and Simulation of Distance Protection Relay in a Long Transmission System Connected to an Offshore Wind Farm

Wu¹,

Lin²,

Lee³

et al. 2016

JOCET

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Abstract-Offshore wind power has become the focus of the world's renewable energy development. In Taiwan, several demonstration offshore wind turbines will be scheduled to be established by 2015, and more than 300MW capacity of offshore wind farm to be installed by 2020. As the penetration level of wind energy increases, more reliable protection systems for offshore wind farms are required. The wind farm protection system is usually divided into different protection zones including the wind farm area, wind farm collection system, wind farm interconnection system and the utility area. Different protective zones have different protection schemes and relay settings. This project has proposed an adaptive distance relay that protects submarine cables between an offshore wind farm and an AC grid. The double-circuit submarine cables that connect offshore wind farm in Penghu and Taiwan grid will be utilized as an example. First, the apparent impedance of the relay is mathematically derived using a detailed equivalent circuit model, and the characteristic trip boundaries of the relay in various scenarios are obtained. The nonlinear characteristics of the trip boundaries that are used in a typical distance relay with four protection zones will be discussed. Furthermore, the effects of the uncontrollable factors on the performance of a distance relay have been considered into the simulations. These system disturbances include wind speed variation, system short circuit faults, or system component failures. These case studies have been presented using the simulation package to evaluate the feasibility of the distance relay setting that is developed in this project.Index Terms-Offshore wind power, protection system, distance relay.

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Section: Introductionmentioning

confidence: 99%