Search Results for author: Eduardo Prieto-Araujo

Found 20 papers, 1 papers with code

Optimal Dynamic Ancillary Services Provision Based on Local Power Grid Perception

no code implementations31 Jan 2024 Verena Häberle, Xiuqiang He, Linbin Huang, Eduardo Prieto-Araujo, Florian Dörfler

In this paper, we propose a systematic closed-loop approach to provide optimal dynamic ancillary services with converter-interfaced generation systems based on local power grid perception.

Dynamic Ancillary Services: From Grid Codes to Transfer Function-Based Converter Control

no code implementations2 Oct 2023 Verena Häberle, Linbin Huang, Xiuqiang He, Eduardo Prieto-Araujo, Florian Dörfler

Namely, we translate the piece-wise linear time-domain curves for active and reactive power provision in response to a frequency and voltage step change into a desired rational parametric transfer function in the frequency domain, which defines a dynamic response behavior to be realized by the converter.

MIMO Grid Impedance Identification of Three-Phase Power Systems: Parametric vs. Nonparametric Approaches

no code implementations29 Apr 2023 Verena Häberle, Linbin Huang, Xiuqiang He, Eduardo Prieto-Araujo, Roy S. Smith, Florian Dörfler

A fast and accurate grid impedance measurement of three-phase power systems is crucial for online assessment of power system stability and adaptive control of grid-connected converters.

An Effective Methodology for Short-Circuit Calculation of Power Systems Dominated by Power Electronics Converters Considering Unbalanced Voltage Conditions and Converter Limits

no code implementations15 Dec 2022 Jie Song, Marc Cheah-Mane, Eduardo Prieto-Araujo, Oriol Gomis-Bellmunt

A novel methodology has been presented to identify short-circuit equilibrium point of the studied system considering the operation and limitations of power converters.

How Many Grid-Forming Converters do We Need? A Perspective From Small Signal Stability and Power Grid Strength

no code implementations21 Sep 2022 Huanhai Xin, Yuxuan Wang, Xia Chen, Eduardo Prieto-Araujo, Linbin Huang

Based on our analysis, we further study the problem of how to configure GFM converters in the grid and how many GFM converters we will need.

Grid-Forming Loads: Can the loads be in charge of forming the grid in modern power systems?

no code implementations27 Aug 2022 Oriol Gomis-Bellmunt, Saman Dadjo Tavakoli, Vinicius A. Lacerda, Eduardo Prieto-Araujo

In this sense, the new concept allows running a system powered only by renewables operating at maximum power (or operator defined set-point) in grid-following mode, while the overall system control is ubicated in the demand side.

Management

Augmentation of Generalized Multivariable Grid-Forming Control for Power Converters with Cascaded Controllers

no code implementations17 Feb 2022 Meng Chen, Dao Zhou, Ali Tayyebi, Eduardo Prieto-Araujo, Florian Dörfler, Frede Blaabjerg

The classic design of grid-forming control strategies for power converters rely on the stringent assumption of the timescale separation between DC and AC states and their corresponding control loops, e. g., AC and DC loops, power and cascaded voltage and current loops, etc.

Passivity-based design and analysis of phase-locked loops

no code implementations13 Jan 2022 Daniele Zonetti, Oriol Gomis-Bellmunt, Eduardo Prieto-Araujo, Marc Cheah-Mane

We consider a grid-connected voltage source converter (VSC) and address the problem of estimating the grid angle and frequency, information that is essential for an appropriate operation of the converter.

Modelling and Simulation of Power Systems with Grid-Connected Converters in OpenModelica

no code implementations1 Dec 2021 Lluc Figueras Llerins, Vinícius Albernaz Lacerda, Adrien Guironnet, Quentin Cossart, Eduardo Prieto-Araujo, Oriol Gomis-Bellmunt

This paper analyses the capabilities of the OpenModelica environment to perform electromagnetic transient (EMT) type simulations of power transmission systems with grid-connected converters.

Definition of scenarios for modern power systems with a high renewable energy share

no code implementations1 Dec 2021 Carlos Collados-Rodríguez, Eduard Antolí-Gil, Enric Sánchez-Sánchez, Jaume Girona-Badia, Vinícius Albernaz Lacerda, Marc Cheah-Mañe, Eduardo Prieto-Araujo, Oriol Gomis-Bellmunt

Recent environmental policies have led many academic, industrial and governmental stakeholders to design and plan scenarios with very high share of renewable energy sources (RES).

Modelling Approaches of Power Systems Considering Grid-Connected Converters and Renewable Generation Dynamics

no code implementations1 Dec 2021 Vinícius Albernaz Lacerda, Jaume Girona-Badia, Stephan Kusche, Florian Pöschke, Eduardo Prieto-Araujo, Horst Schulte, Oriol Gomis-Bellmunt

This paper presents a comparative analysis of several modelling approaches of key elements used in simulations of power systems with renewable energy sources.

Stability Assessment for Multi-Infeed Grid-Connected VSCs Modeled in the Admittance Matrix Form

no code implementations22 Sep 2021 Luis Orellana, Luis Sainz, Eduardo Prieto-Araujo, Oriol Gomis-Bellmunt

The present work addresses this issue by proposing a simple criterion to assess the stability of large power systems with high-penetration of power converters.

Generalized Multivariable Grid-Forming Control Design for Power Converters

no code implementations14 Sep 2021 Meng Chen, Dao Zhou, Ali Tayyebi, Eduardo Prieto-Araujo, Florian Dörfler, Frede Blaabjerg

The grid-forming converter is an important unit in the future power system with more inverter-interfaced generators.

Analytic estimation of the MMC sub-module capacitor voltage ripple for balanced and unbalanced AC grid conditions

no code implementations1 Sep 2021 Daniel Westerman Spier, Eduardo Prieto-Araujo, Oriol Gomis-Bellmunt, Joaquim López Mestre

In this paper, a mathematical expression to define the maximum and minimum voltage ripples of the modular multilevel converter (MMC) sub-module (SM) capacitors is proposed.

Data-driven Small-signal Modeling for Converter-based Power Systems

no code implementations30 Aug 2021 Francesca Rossi, Eduardo Prieto-Araujo, Marc Cheah-Mane, Oriol Gomis-Bellmunt

This article details a complete procedure to derive a data-driven small-signal-based model useful to perform converter-based power system related studies.

regression

Control Design of Dynamic Virtual Power Plants: An Adaptive Divide-and-Conquer Approach

1 code implementation2 Aug 2021 Verena Häberle, Michael W. Fisher, Eduardo Prieto-Araujo, Florian Dörfler

Our control approach relies on an adaptive divide-and-conquer strategy: first, we disaggregate the desired frequency and voltage control specifications of the aggregate DVPP via adaptive dynamic participation matrices (ADPMs) to obtain the desired local behavior for each device.

Dual-port grid-forming control of MMCs and its applications to grids of grids

no code implementations21 Jun 2021 Dominic Groß, Sánchez-Sánchez, Eduardo Prieto-Araujo, Oriol Gomis-Bellmunt

Finally, we provide an in-depth discussion and comparison of single-port GFM control and the proposed dual-port GFM controls.

Improved current reference calculation for MMCs interal energy balancing control

no code implementations5 May 2021 Daniel Westerman Spier, Eduardo Prieto-Araujo, Joaquim López-Mestre, Oriol Gomis-Bellmunt

The paper addresses an improved inner current reference calculation to be employed in the control of modular multilevel converters operating during either balanced or unbalanced conditions.

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