Technical Presentations

Performing Acceptance Tests of a Wind Farm Power Plant Using the EMTP® Tool.895

Abstract
This presentation shows the acceptance tests performed on a wind power plant modeled using the WECC model. The plant cosistes of 121 turbines, each with a capacity of 0.85 MW, operating at 60 Hz. Thes... see moree turbines are connected to the 34.5 kV medium voltage collector system via 121 step-up transformers. The wind power plant is linked to the 320 kV network through a 230/34.5 kV 125 MVA main facility transformer. Other network components, such as collector cables and wind turbine step-up transformers, have also been represented by their equivalents. The model was developed and validated using two commercial tools - EMTP® and PSS®E. Simulations and analysis were performed to validate a group of acceptance tests required by the local utility. This presentation will focus on the modelling process, analysis and results obtained using EMTP®. The results obtained from the EMTP® and PSS®E are compared and discussed.

Tag(s): Wind Power, Power System Simulation, PSS®E, Model Validation

Onshore windfarm generic models and sensitivity analysis methods for harmonic studies881

Abstract
To facilitate the integration of renewable energy, RTE must connect new substations where multiple onshore wind power plants are connected at a distribution voltage level. These substations can be con... see morenected to the transmission grid with long underground cables, which can lead to harmonic amplification issues. To compensate for the lack of data on the distribution level of wind generators, RTE developed generic harmonic models for conducting harmonic studies and sensitivity analysis. This presentation will focus on the wind farm models, sensitivity analysis models, and results related to understanding which parameters influence harmonic amplification factors.

Tag(s): Renewable, Harmonic Analysis Studies, Sensitivity Analysis, Wind Power Plants

Development of Standard Models for IBR in EMT Simulations889

Abstract
In this work, the standard model for wind power generation systems based on the international standard IEC 61400-27-1 (Edition 2.0, 2020) was implemented in EMTP®. Its validation has been carried out... see more in a test system with respect to a validated RMS model of a wind farm in Chile.

Tag(s): IBR, Renewable, Wind Power

EMTP Development Roadmap: Renewable toolbox in EMTP 4.2831

Abstract
This presentation introduce the new Renewable toolbox in EMTP 4.2:

1. New battery device
2. New detailed PV converter with battery and MPPT
3. Initialization improvement
4. M... see moreore modeling flexibility
5. C37.013-2015 implementation

Tag(s): Renewable, PV panels, converter, battery device, wind farm

SSCI analysis: Assessment of Interactions Involving Wind Farm Systems755

Abstract
<p>This presentation provides an overview of recently proposed generic EMTP wind turbine models, which have been validated against field measurements, and a benchmark study system for th... see moree assessment of low-frequency interactions involving wind farms in radial series-compensated grids. Based on these models, detailed EMTP results are presented and modal analysis is applied to help explaining some of the identified issues and provide mitigation. Finally, a recently proposed Abstract : Recently, field events involving adverse interaction between grid-connected inverters and the existing power infrastructure have been reported. Hence, the ever increasing integration of such devices is yielding the need for detailed EMT-Type models to better understand such phenomena, as well as reliable screening methodologies for the efficient identification of potentially critical scenarios during new interconnection processes. This work provides an overview of recently proposed generic EMTP wind turbine models, which have been validated against field measurements, and a benchmark study system for the assessment of low-frequency interactions (sub-synchronous control interaction) involving wind farms in radial series-compensated grids. Based on these models, detailed EMTP results are presented and modal analysis is applied to help explaining some of the identified issues and provide mitigation. Finally, a recently proposed methodology aiming at the efficient identification of critical scenarios, namely, the DQ-Scanning technique, is outlined and its effectiveness demonstrated by its application to the aforementioned systems. Author: Aramis Schwanka Trevisan</p>