Gilney Damm

Gilney Damm
Université Gustave Eiffel · Department of Components and Systems (COSYS)

PhD

About

97
Publications
17,731
Reads
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1,149
Citations
Additional affiliations
September 2002 - present
Université Paris-Saclay
Position
  • Professor (Associate)

Publications

Publications (97)
Article
Full-text available
The robust transient stabilisation problem (with stability proof€) of a synchronous generator in an uncertain power network with transfer conductances is rigorously formulated and solved. The generator angular speed and electrical power are required to be kept close, when mechanical and electrical perturbations occur, to the synchronous speed and m...
Article
Full-text available
In this article, the problem of robust state observer design for a class of unmanned aerial vehicles (UAVs) is addressed. A prototype four-rotors helicopter robot for indoors and outdoors applications is considered: the drone is not equipped with GPS related devices, so we describe a strategy to estimate its translational velocity vector based on a...
Article
This work presents a nonlinear adaptive output feedback excitation control, designed for a synchronous generator modelled by a standard third-order model on the basis of the physically available measurements of relative angular speed, active and reactive electric power and terminal voltage. The power angle, which is a crucial variable for the excit...
Article
Full-text available
In this work is considered the connection of a photovoltaics (PV) solar plant to the main grid through a Direct Current (DC) MicroGrid and a hybrid storage system, composed of a battery and a supercapacitor, in order to satisfy constraints of grid connection (the so-called Grid-Codes). The objective, and main contribution of this paper, is to stabi...
Book
This chapter is dedicated to DC Microgrid's application to provide ancillary services to weak AC grids. In particular, control algorithms are designed to provide inertial, frequency and voltage support for weak grids, such as AC Microgrids composed mainly by sources interfaced by power converters, with a small portion of diesel generators. A number...
Chapter
This chapter is dedicated to DC Microgrid’s application to provide ancillary services to weak AC grids. In particular, control algorithms are designed to provide inertial, frequency and voltage support for weak grids, such as AC Microgrids composed mainly by sources interfaced by power converters, with a small portion of diesel generators. A number...
Article
Full-text available
The power system is going through a change in its very foundations. More and more power converters are being integrated into the electric grid to interface renewable energy resources and in high-voltage direct-current (HVDC) transmission systems. This article presents a discussion on the stability of power systems when HVDC transmission systems bas...
Article
Full-text available
DC grid interfaces for supercapacitors (SCs) are expected to operate with a wide range of input voltages with fast dynamics. The class-C DC-DC converter is commonly used in this application because of its simplicity. However, it does not work if the output voltage (V2) becomes smaller than the input voltage (V1). The non-isolated bi-directional Buc...
Article
This paper presents the nonlinear control design with formal stability proof for a Modular Multilevel Converter (MMC), which is critical for the interaction between AC and DC grids. Lyapunov theory is used to develop the proposed controller, which is based on Backstepping and Feedback Linearization techniques and to perform the stability analysis....
Article
Full-text available
The transient stabilization and voltage regulation problem for a synchronous generator connected to an infinite bus is addressed, in this technical note, in the presence of all uncertain physical parameters. First, new interpretations for the Desensitized Four Loops Regulator, here referred to as robust coordinated PSS-AVR (Power System Stabilizer...
Article
This paper presents a distributed supplementary control for embedded Multi-Terminal VSC-HVDC (MTDC) grids to enhance transient stability of the surrounding AC grid. Firstly, the need of supplementary controllers for embedded MTDC grids is demonstrated via the study of the Transient Energy Functions (TEF) of a simple hybrid AC/DC power system. Then,...
Conference Paper
Full-text available
The reinforcement of the transmission systems by means of HVDC systems, appears to be one of the most suitable solutions to face the challenges related to the evolution of power systems. In this context, this paper aims to investigate the impact of the overlaid HVDC systems on stability of the surrounding AC grid. More in particular, the rotor-angl...
Article
Full-text available
This paper investigates the impact of embedded Voltage Source Converter-based High Voltage Direct Current (VSCHVDC) links on AC grids transient stability. Firstly, using Transient Energy Functions (TEF), it is demonstrated that VSC-HVDC links controlled to track constant power references, do not inherently improve transient stability of the surroun...
Article
Full-text available
The paper proposes an adaptive variable synthetic inertia strategy to provide frequency and voltage support (ancillary services) in an AC MicroGrid (weak grid) composed of diesel generators and loads. A DC MicroGrid is connected to the AC one by a Voltage Source Converter (VSC). The VSC converter is driven as a Virtual Synchronous Machine (VSM), wh...
Article
The paper introduces a combined modeling that can allow the Optimal Power Flow of a Multi-Energy Vector merging electric and thermal networks. This topic is motivated by the goal of introducing larger shares of renewable energy in the overall energy consumption, which is hindered by the intermittent nature of these renewable energies. To tackle thi...
Article
Full-text available
This paper is a contribution for DC MicroGrid control and introduces a rigorous dynamics’ analysis, taking into account intermittency effects. We propose an hierarchical control scheme, based on nonlinear control theory, in particular Lyapunov, backstepping and input/output feedback linearization. The resulting algorithms are simple, comparable to...
Article
Full-text available
A low-level distributed nonlinear controller for a DC MicroGrid integrated in a Smart Railway Station capable to recover trains' braking energy is introduced in this paper. The DC MicroGrid is composed by a number of elements: two different types of renewable energy sources (regenerative braking energy recovery from the trains and photovoltaic pane...
Article
Full-text available
A power management controller for a DC MicroGrid containing renewable energy sources, storage elements and loads is presented. The controller ensures power balance and grid stability even when some devices are not controllable in terms of their power output, and environmental conditions and load vary in time. Power balance and desired voltage level...
Chapter
Full-text available
This chapter introduces concepts of DC MicroGrids exposing their elements, features, modeling, control, and applications. Renewable energy sources, energy storage systems, and loads are the basic components of a DC MicroGrid. These components can be better integrated, thanks to their DC feature, resulting in simpler power converter topologies, as w...
Article
Full-text available
This paper introduces a control induced time-scale separation scheme for a multiterminal high-voltage direct current system used for large scale integration of renewable energy sources. The main idea is to provide a detailed theoretical analysis to the long stand practice that consists of the empirical design of two control loops for the terminals....
Article
Full-text available
This paper proposes the integration of a train line for regenerative braking into a DC MicroGrid composed of PV generation, hybrid energy storage system (battery and supercapacitor) and DC local load. The energy generated from regenerative braking is absorbed by the supercapacitor, which is able to deal with bursts of power without affecting the st...
Article
Full-text available
A nonlinear control able to perform voltage and power stability in Direct Current (DC) MicroGrids for an efficient renewable energy integration that is capable of providing frequency support to an Alternate Current (AC) grid is introduced in this work. A generic DC MicroGrid modeling is developed, and the introduced controllers are shown to ensure...
Article
Full-text available
In recent years different protection strategies for High Voltage Direct Current (HVDC) grids have been developed by the industry and academia for the reliable and safe operation of direct current grids. The proposed strategies have different impacts on the AC networks where HVDC grids are connected. In the case of embedded HVDC grids embedded in a...
Article
Full-text available
International audience The access to electricity for isolated communities is capital for improving life in those societies. The use of renewable energy sources (renewables) and energy storage systems is the key for clean energy supply in remote areas without the main grid. The standalone operation of renew-ables represents a challenge for operation...
Article
Full-text available
This paper introduces a control induced time-scale separation scheme for a multi-terminal high-voltage direct current system used for large scale integration of renewable energy sources. The main idea is to provide a detailed theoretical analysis to the long stand practice that consists of the empirical design of two control loops for the terminals...
Article
Full-text available
This article provides a solution for the control of multi-terminal DC networks from the point of view of the network's transmission system operator (TSO), which includes local, primary, and secondary controllers. A new power flow technique is validated for this approach, which guarantees the stability and requires fewer calculations than convention...
Article
Full-text available
This paper presents the nonlinear control of a Fully-Fed Synchronous Machine based Variable Speed Pumped Storage Plant (FFSM PSP). First, a model is developed and the control objective is established followed by the control design. The control algorithm is designed using Feedback Linearization robustified by a Second Order Sliding Mode Control (SOS...
Article
Full-text available
DC MicroGrids present an increasing interest as they represent an advantageous solution for interconnecting renewable energy sources, storage systems and loads as electric vehicles. A high-level management system able to calculate the optimal reference values for the local controllers of each of the DC MicroGrid interconnected devices is introduced...
Article
Full-text available
New connection constraints for the power network (Grid Codes) require more flexible and reliable systems, with robust solutions to cope with uncertainties and intermittence from renewable energy sources (renewables), such as photovoltaic arrays. The interconnection of such renewables with storage systems through a Direct Current (DC) MicroGrid can...
Conference Paper
Full-text available
New connection constraints for the power network (Grid Codes) require more flexible and reliable systems, with robust solutions to cope with uncertainties and intermittence from renewable energy sources (renewables), such as photovoltaic arrays. A solution for interconnecting such renewables to the main grid is to use storage systems and a Direct C...
Article
Full-text available
New connection constraints for the power network (Grid Codes) require more flexible and reliable systems, with robust solutions to cope with uncertainties and intermittence from renewable energy sources (renewables), such as photovoltaic arrays. A solution for interconnecting such renewables to the main grid is to use storage systems and a Direct C...
Article
Full-text available
A new power flow for DC grids is presented in this paper. This new method gives the possibility of using more than one bus for the power balance and consequently share the responsibilities between many actors. The present paper introduces a mathematical proof for this new power flow algorithm, which guarantees the existence of unique solution when...
Conference Paper
Full-text available
This paper focuses on the experimental implementation of local and primary controls for MT-HVDC in a real test bench (P nom = 6 kW). A local control with two different time scales, one for the current and the other for the voltage, and primary control (droop control), which is responsible to vary the reference voltage when a disturbance appears in...
Article
Full-text available
A Multiple Input Multiple Output (MIMO) controller based on the conditional integrator technique is designed for the robust stabilization of a new satellite launching strategy called (unmanned) airlaunch. This strategy consists in using a two-stages launching system. The first stage is composed of an airplane (manned or unmanned) that carries a roc...
Article
Full-text available
This work presents a power flow strategy for multi-terminal HVDC grids. Energy is mainly generated via renewable energy sources and there are nodes in the network with the possibility to store energy. This energy is generated taking into account real weather conditions in order to make the best scheduling of the system in a realistic approach. An o...
Article
Full-text available
This paper addresses the problem of analyzing the dynamic limitations of a VSC terminal with DC voltage droop control. Thanks to its fast response, DC voltage droop control is usually used to adjust the DC voltage in case of power imbalance. To ensure the stability of the VSC terminal, the dynamics between the dq currents (il,dq) and the DC voltage...
Article
Full-text available
This paper presents the modeling and control of a DC/DC bidirectional converter suitable for medium voltage and power applications in Multi-Terminals HVDC (MT-HVDC) grids. Moreover its use as DC circuit-breaker is described. This is a new concept, against the contemporary studies of DC breakers,which could help for the implementation of MT-HVDC net...
Article
Full-text available
This paper presents the modeling and control of a multilevel DC/DC bidirectional converter suitable for medium voltage and medium power applications, with a special interest in renewable applications. The multilevel converter is based on Dual Active Bridge (DAB) and its average dynamic model. Two different control strategies are addressed in this p...
Article
Full-text available
This paper proposes a novel control scheme to regulate the DC voltage of a VSC terminal. It significantly simplifies the control design process itself and also results in an uncomplicated and efficient control architecture. First, we present an equivalent state-space model established in a synchronous dq reference frame. Subsequently, we split the...
Conference Paper
Full-text available
This paper investigates the use of feedback linearization to develop a control system for regulating the DC voltage and the reactive power of a VSC terminal. Firstly, a direct-quadrature (dq) state-space model of the VSC terminal is established. By analyzing the zero dynamics of the system, the static feedback linearization can be applied when the...
Conference Paper
Full-text available
Acknowledgments This work is supported by WINPOWER project (ANR-10-SEGI-016). Abstract This paper presents the modeling and control of a multilevel DC/DC bidirectional converter suitable for medium voltage and power applications, with a special interest in wind-power applications. The proposed multilevel topology has a modular structure constituted...
Conference Paper
Full-text available
This paper investigates a control strategy that uses a multi-terminal high voltage direct current (HVDC) system for frequency control. It first describes a DC voltage control law which, based only on local information, makes the interconnected non-synchronous systems share their pri-mary reserves. Then, a sufficient condition for choosing the contr...
Data
Full-text available
This paper presents a nonlinear control strategy based on dynamic feedback linearization control theory and a backstepping-like procedure for a multi-terminal voltage-source converter based high-voltage direct current (multi-terminal VSC-HVDC) system. The controller is able to provide global asymptotic stability for the power transmission system co...
Conference Paper
Full-text available
This paper presents a nonlinear control strategy based on dynamic feedback linearization control theory and a backstepping-like procedure for a multi-terminal voltage-source converter based high-voltage direct current (multi-terminal VSC-HVDC) system. The controller is able to provide asymptotic stability for the power transmission system with mult...