Juan C. Vasquez's research while affiliated with Aalborg University and other places

Publications (64)

Article
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Quantum mechanics (QM) can be understood as a set of rules that forms the basis for developing all quantum theories. One of these theories is quantum computation (QC), i.e., computation based on QM logic. It is believed that QC provides paths to the problem solution that may not be possible for classical computers. Therefore, it has received attent...
Article
The increasing demand for decarbonization of marine transportation motivates the utilization of low-carbon resources. Among different options, fuel cells are drawing attention. The selection of fuel cell (FC) and the design of energy management strategy would have a great impact on the vessel’s operational efficiency, and thereby needs to be consid...
Article
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Several issues of individual microgrids (MGs) such as voltage and frequency fluctuations mainly due to the intermittent nature of renewable energy sources’ (RESs) power production can be mitigated by interconnecting multiple MGs and forming a multi-microgrid (MMG) system. MMG systems improve the reliability and resiliency of power systems, increase...
Article
Recently, space organizations have considered the Moon to host lunar bases. Such bases require power and energy to function. However, the efficient and safe use of the energy resources on the Moon is a huge challenge. Space photovoltaic (PV) power systems are appealing technologies due to their maturity and high solar energy availability at some lo...
Article
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Space mission cost and feasibility depend mainly on the size and mass of the payload. This paper investigates the optimal photovoltaic (PV) array and battery size and mass for an islanded PV-battery powered space microgrid (MG) at the lunar south pole. The PV arrays are considered to be installed on top of towers to increase solar energy harvesting...
Article
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Natural disasters threat the resilience of the electricity system. However, little literature has investigated the electricity system’s recovering process and progress after natural disasters’ hit which strongly influence the system operators’ planning and quality of the security of supply for the electricity customers. To fill the research gap, th...
Conference Paper
Port emissions can be considerably reduced with the execution of maritime electrification. This paper studies the optimal berth allocation problem (BAP) combined with an onshore power supply known as cold ironing in response to the growing interest in maritime electrification. The problem is formulated as a mixed integer linear programming (MILP) o...
Article
Energy disaggregation is the process of disaggregating a household's total energy consumption into its appliance-level components. One of the limitations of energy disaggregation is its generalization capacity, which can be defined as the ability of the model to analyze new households. In this article, a new energy disaggregation approach based on...
Article
A novel distributed real-time energy management strategy for inverter-based microgrids based on dynamic algorithms with a low computational burden and without the requirement of offline forecast or a central optimizer is presented in this paper. A dynamic economic dispatch problem is solved while a stability performance is guaranteed. The algorithm...
Article
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This paper proposes a Data-Driven (DD) framework for the real-time monitoring, detection, and mitigation of False Data Injection (FDI) attacks in DC Microgrids (DCMGs). A supervised algorithm is adopted in this framework to continuously estimate the output voltage and current for all Distributed Generators (DGs) with acceptable accuracy. Accordingl...
Article
A deeper decarbonization perspective is undergoing with the increasing engagement of new distributed players and the deployment of innovative behind-the-meter flexibility services. Peer-to-Peer (P2P) trading has emerged as an innovative mechanism to foster the direct energy sharing among multi-level market players with pre-determined responsibility...
Preprint
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This paper offers a comparative analysis of Maximum Power Point Tracking (MPPTs) techniques under the spinning conditions for small satellite applications. The Nano Satellite (NanoSat) is constrained on volume and mass with body-mounted solar panels and where it is dedicated to some special orientation scenarios, depending on specific mission requi...
Conference Paper
Decarbonizing issues from ship transportation during visiting a port offer a few alternatives. Among them is the electrification onshore power system known as cold ironing that provides electric power from the shoreside to the visiting ship at port, replacing auxiliary engines-fossil fuel-based. This paper presents four different environmental disp...
Preprint
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An adaptive control system is a system that can cope with variations and uncertainties in a plant where it plays a major role in smart controllers needed for sophisticated systems. This paper covers the conceptual ideal of implementing adaptive control passing by different steps, starting with a comprehensive survey on the adaptive control theory,...
Article
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The Small Satellite (SmallSat) industry has recorded incredible growth recently. Within this class, among Mini-, Micro-, and Nanosatellites, the Cube Satellite (CubeSat) is primed for an explosion of growth. These satellites are fascinating for remote sensing, earth observation, and scientific applications. Remarkable attention from the space opera...
Article
Increasing implementation of energy storage systems (ESS) is an available way to mitigate the fluctuation of renewable energy sources (RES) in smart grid. This paper proposes distributed control strategies without/with event-triggered information delivery for a group of heterogeneous energy storage systems (HESS) with different parameters such that...
Article
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Cold ironing (CI) is an electrification alternative in the maritime sector used to reduce shipborne emissions by switching from fuel to electricity when a ship docks at a port. During the ship’s berthing mode of operation, accurately estimating the berthing duration could assist the port operator to manage the berth allocation and energy scheduling...
Article
This article presents the idea of direct adaptive control for several power system applications such as the Egyptian power system (EPS), a three-zone interconnected microgrid (MG), and a single machine connected to the grid (SMIB). The main concept of the proposed adaptive method is built on the tuning of the controller gains using Harris hawks opt...
Article
The emerging novel energy infrastructures, such as energy communities, smart building-based microgrids, electric vehicles enabled mobile energy storage units raise the requirements for a more interconnective and interoperable energy system. It leads to a transition from simple and isolated microgrids to relatively large-scale and complex interconne...
Article
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Rapid integration of renewable energy into the electric grid has ramifications for grid management and planning. Therefore, system operators have formulated grid code requirements to ensure that the grid continues to operate in a secure, safe, and cost-effective manner. The current state of grid code in Ethiopia, as well as the need for it, is disc...
Article
The virtual synchronous generator (VSG) control has been extensively applied for realizing grid-friendly interconnections of power converters. Nevertheless, due to the direct shaft dynamics emulation, low-frequency power oscillations may be introduced in the case of limited damping effects. To solve this issue, power control law modifications have...
Article
The increasing demands of reducing fuel consumption for marine transportation have motivated the use of high fuel efficiency power plants and the development of power management systems (PMS). Current studies on shipboard PMS are mostly categorized as centralized, which are easy to be implemented and able to converge to the global optimum solutions...
Article
The voltage harmonics and voltage unbalance, as well as voltage drop due to the electrical faults, can damage the sensitive loads. Various voltage compensators, such as the series active power filter (SAPF) and dynamic voltage restore (DVR) have been developed to overcome these problems. In this paper, a new compensator is introduced, which can sim...
Article
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Advances in communication technologies and protocols among vehicles, charging stations, and controllers have enabled the application of scheduling techniques to prioritize EV fleet charging. From the perspective of users, residential EV charging must particularly address cost-effective solutions to use energy more efficiently and preserve the lifet...
Article
Decarbonisation of energy sector is crucial to deliver the future net zero energy system with promoting and facilitating the large-scale electrification of end-user sectors. It is necessary to provide sustainable, cost-effective, resilient and scalable energy solutions to exploit the power of citizens to contribute to the clean energy transition, i...
Article
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This paper presents a stability analysis for droop-based islanded AC microgrids via an autonomous shooting method based on bifurcation theory. Shooting methods have been used for the periodic steady-state analysis of electrical systems with harmonic or unbalanced components with a fixed fundamental frequency; however, these methods cannot be direct...
Article
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DC microgrids are considered as the next generation of power systems because of the possibility of connecting various renewable energy sources to different types of loads based on distributed networks. However, due to the strong reliance on communication networks, DC microgrids are vulnerable to intentional cyber-attacks. Therefore, in this paper,...
Conference Paper
Dynamic stability is considered a vital issue in modern power systems. In this work, a robust design is proposed for the stability improvement of grid-connected hydro-turbine generators using the adaptive concept-based Electro-Search optimizer (ESO). In this regard, we provide a dynamic stability analysis of a hydro-turbine generator located at the...
Conference Paper
this paper provides a comprehensive discussion of the balloon effect method, which is a new tool for optimization techniques. There exist two broad categories of algorithms called metaheuristics and heuristics that are: evolutionary algorithms and swarm intelligence. The performance of these algorithms relies heavily on the parameters used which ne...
Article
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Microgrids are among the promising green transition technologies that will provide enormous benefits to the seaports to manage major concerns over energy crises, environmental challenges, and economic issues. However, creating a good design for the seaport microgrid is a challenging task, considering different objectives, constraints, and uncertain...
Article
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The development of the energy sector in Egypt is considered an urgent issue due to the rapid population rise rate. In particular, renewable energy sources (RESs) applications play an essential role in the coverage of energy demand. Therefore, Egypt has ambitious plans towards RESs to combine a sustainable energy future with economic growth. Egypt h...
Article
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Optimizing energy consumption in buildings is a significant challenge in today’s society. A major part of energy consumption is in heating, ventilation and air conditioning (HVAC) systems. In this paper, the aim is to reduce the energy consumption of air handling units (AHU) by applying optimal control. This system used in this study has four AHUs,...
Article
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This research investigates a new coordination strategy for both isolated single-area and interconnected multi-area microgrids (MGs) using a modified virtual rotor-based derivative technique supported with Jaya optimizer based on balloon effect modulation (BE). Accordingly, the main concept of BE is to assist the classic Jaya to be more sensitive an...
Article
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Shipboard microgrids (SMGs) are distinguished by the heavy propulsion system that can vary largely in a short time. Consequently, this variation shifts the optimum operating points of the diesel engines that leads to increase the overall emissions and operational costs. Moreover, power fluctuations caused by the dynamic loads such as propulsion mot...
Article
In many grid synchronization systems (GSSs), amplitude and phase estimation loops are dynamically coupled. It means that a change in the input voltage amplitude may result in spurious phase/frequency transients in the GSS output, and vice versa. This paper aims to explain the reason behind this coupling and present some guidelines to mitigate it. S...
Article
The increasing demand for improving fuel efficiency of marine transportation has presented opportunities for the development of the power management system (PMS). Different from the terrestrial power system, a shipboard power system contains a large proportion of propulsion loads, which has the characteristics of high dynamics, periodicity, uncerta...
Article
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Following the fourth industrial revolution, and with the recent advances in information and communication technologies, the digital twinning concept is attracting the attention of both academia and industry worldwide. A microgrid digital twin (MGDT) refers to the digital representation of a microgrid (MG), which mirrors the behavior of its physical...
Article
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Voltage–current ( V – I ) droop control is becoming a promising alternative to achieve proper power sharing among the parallel-operated voltage-sourced inverters (VSIs). Compared with the conventional droop control, this method has a simpler structure and a better dynamic performance because it saves the power loop (including the low-pass filters...
Article
Islanded microgrids with high shares of RES are more exposed to frequency disturbances. The largest generator is typically in charge of frequency regulation. This study tries to upgrade this monopoly to a competitive market. A novel framework is proposed to invite prosumers of any kind/size to participate in a local ancillary service market. A mult...
Article
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Life support systems (LSSs) are autonomous systems integrating various generation, recycling, and consumption subsystems with storage capability to maintain the balance of key system compounds. A novel hierarchical control is proposed in this paper to operate an exemplary controlled ecological LSS. The study focuses on the control of O2 concentrati...
Article
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Seaports are well known as the medium that has evolved into the central link between sea and land for complex marine activities. The growth in maritime logistics particularly necessitates a large volume of energy supply in order to maintain the operation of sea trade, resulting in an imbalance between generation and demand sides. Future projections...
Article
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Integrated power systems (IPSs) are popular in the shipbuilding industry. DC shipboard microgrids (dc-SMGs) have many advantages compared with ac ones in terms of system efficiency, operation flexibility, component size, and fault protection performance. Being in the exploring stage, dc-SMGs have several potential configurations with different syst...
Article
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Modern maritime microgrid systems are witnessing a revolutionary advancement by integrating more renewable energy sources and energy storage systems. The integration of these sophisticated systems is achieved, however, through the power electronics converters that cause severe harmonic contamination. This problem becomes more serious when some of t...
Article
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This paper presents a review of coordinated control strategies, stability analysis, and fault management for dc shipboard microgrids (dc-SMGs). As an emerging application, the dc-SMG lacks of a comprehensive summary on the control schemes. Considering the specific load profile in ships, this paper discusses the coordinated control strategies of die...
Article
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Retrofitting of shipboard microgrids is receiving much attention nowadays due to the flexibility it offers to adapt existing ships with rapid market variations to move towards all-electric ships (A-ESs). This modernity mainly relies on incorporating the power electronics converters that unfortunately draw a large number of harmonics, which affect t...
Article
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Traditional electric energy systems are experiencing a major revolution and the main drivers of this revolution are green transition and digitalization. In this paper, an advanced system-level EMS is proposed for residential AC/DC microgrids (MGs) by taking advantage of the innovations offered by digitalization. The proposed EMS supports green tran...
Article
Full-text available
In recent years, the photovoltaic generation installed capacity has been steadily growing thanks to its inexhaustible and non-polluting characteristics. However, solar generators are strongly dependent on intermittent weather parameters, increasing power systems’ uncertainty level. Forecasting models have arisen as a feasible solution to decreasing...

Citations

... To tackle this challenge, a coordinated control of sources, loads, and energy storage is necessary [10]. Among several potential control structures for DCMGs and in light of the DCMG's main control objectives, the dynamic state of charge balancing, proportional load current sharing, DC bus voltage restoration, and the hierarchical control schemes have gained considerable attention [11][12][13][14]. Three primary, secondary, and tertiary levels typically comprise hierarchical control structures [15]. ...
... Moreover, many studies have been conducted on regression, fuzzy estimation, random forest, support vector machines, and power demand estimation using artificial neural networks owing to the high accessibility of shore power demand data [14,15]. The power load in ships is intermittently high owing to heavy loads, such as the bow thrusters and cargo pumps [16]. Furthermore, research on ship power load estimation is limited because of low data accessibility. ...
... To develop the various functions of the EMS, intelligent algorithms, modeling, and optimization techniques have been used [12]. The energy schedule and the optimization of the energy flows will depend on the time frame (real-time [13], day-ahead [14], intra-day scheduling [15]), the input and forecast data, and the specific application of the microgrid (home, building, residential, or industry) [16]. Usually, for energy scheduling and energy flow optimization, the value of the forecast power generated by the renewable sources, the load consumption, the electricity price, and other parameters, such as the state of health of the microgrid, are considered as certain variables (e.g., [17]). ...
... Each sub-cell possesses the same current because all sub-cells are connected in series. The solar panels and arrays are the combination of the cells in series-parallel configurations for the desired output voltage and current [10]. The I-V curve of a PV cell, array, or module as a continuous function for a given set of operating conditions is defined by the equivalent circuit known as the single diode model which is represented in Fig. 5. ...
... Due to its access to new energy, the stability and reliability of the power grid are greatly challenged [1,2]. At the same time, the super-scale expansion of the network means that the power grid system shows the characteristics of a complex network. ...
... Under randomness and uncertainty of the wind speed condition, a faster and stable tracking of the rotor speed is necessary to ensure the maximum wind-energy capture efficiency [10,11]. Considering that linear controllers such as proportional integral (PI), proportional derivative (PD), and proportional integral derivative (PID), they are more widely accepted in the industry [12,13]. PMSG can be linearly compensated to make it more suitable for linear control law. ...
... Figure 7 illustrates the concept of BE. It is noted that the effect of the system problems on G i (s) is like that of air on the balloon volume [32]. ...
... [1][2][3] However, power systems are experiencing major alterations, facilitated by the incorporation of new advanced technologies such as significant incoming portions of renewables. 4 The control and stability of such power systems introduce a multitude of challenges that are yet to be fully alleviated, as the integration of renewables usually decreases the overall inertia of the power system. 5,6 Integrating a quick-acting energy storage system (ESS) is seen viable tactic for improving the overall reliability of such power systems. 7,8 The ESS like the flywheel devices, batteries, compressed air, supercapacitors, superconducting magnets, and so forth have been extensively employed to regulate the system frequency by imitating the power-frequency curves/trajectories. [9][10][11][12] Superconducting magnetic energy storage (SMES) exhibits the characteristics of an excellent energy storage device, viz., high efficiency, operating as prompt dynamic stability assist, intense responsiveness due to its indefinite charge and discharge cycles, absence of hazardous materials, toxic gas production, and so on. ...
... In order to regulate the frequency and voltage fluctuations in AGC and AVR loops, suitable controllers are required. Various integer order controllers [2,3,19] and proportional integral derivative (PID) controllers [1,2,11,[20][21][22] have been used in the past to solve AGC and AVR difficulties in literature. Because of its low price, ease of use, and reliability in practice, the PID controller is mostly used in the literature. ...
... The main connection point of common coupling (PCC) links the microgrid to the electrical network in grid-connected mode. The microgrid operates autonomously and independently meets control requirements [20]. Microgrids are challenging to control because multilevel control techniques are required to meet voltage and frequency security restrictions, among other technical constraints, especially in the isolated mode. ...