A5015246668- Microgrid Control and Optimization
- Smart Grid Energy Management
- Optimal Power Flow Distribution
- Islanding Detection in Power Systems
- Electric Power System Optimization
- Advanced Battery Technologies Research
- Power System Optimization and Stability
- Integrated Energy Systems Optimization
- Power Systems Fault Detection
- Electric Vehicles and Infrastructure
- Power Systems and Technologies
- Hybrid Renewable Energy Systems
- Wind Turbine Control Systems
- Power Systems and Renewable Energy
- Power Quality and Harmonics
- Advanced DC-DC Converters
- Railway Systems and Energy Efficiency
- HVDC Systems and Fault Protection
- Smart Grid Security and Resilience
- Building Energy and Comfort Optimization
- Multilevel Inverters and Converters
- Lightning and Electromagnetic Phenomena
- Power Line Communications and Noise
- Energy Load and Power Forecasting
- Superconducting Materials and Applications
University of Padua
2015-2024
The recent growing diffusion of dispersed generation in low voltage (LV) distribution networks is entailing new rules to make local generators participate network stability. Consequently, national and international grid codes, which define the connection for stability safety electrical power systems, have been updated requiring distributed storage systems supply stabilizing contributions. In this scenario, specific attention uncontrolled islanding issue has be addressed since currently...
This analysis investigates the business case of a virtually aggregated unit with PV and Power-to-Gas, outlining added value enhanced operation modes for deepened market integration distributed energy resources in an form. Based on empirical generation data, presented outlines benefit so-called stacking that considers exploitation short-term arbitrage opportunities, provision secondary tertiary frequency reserve, active imbalance management to balance forecast errors. A multi-stage...
Nowadays the electrical main grid is managed in AC due to several reasons derived from past. Recent years have experimented a rapid evolution of power electronic components able dramatically enhance effectiveness active and reactive flow management. The inverter diffusion makes possible intelligent integration between systems with different characteristics (i.e. terms voltage magnitude frequency) exploitation generation sources storage typically operating DC. One most interesting...
In light of the advancing energy transition and an increasing amount intermittent renewable to be integrated, flexibility from distributed resources will key. this paper, Italian UVAM (Unità Virtuali Abilitate Miste, i.e., virtually aggregated mixed units) project, one biggest pilots in Europe serve purpose, is critically reviewed mapped after two years operation. The pilot analyzed on a global level as well individual participant level. Based extensive analysis actual market data, different...
The Plant Electrical System (PES) of the European DEMOnstration fusion power plant (DEMO), presently under conceptual design, shall supply to loads and deliver net Power Transmission Grid (PTG). Starting from available requirements, applicability DEMO PES technologies design approaches adopted in ITER nuclear plants (NPP) has been evaluated. This article presents results survey proposes alternative solutions deal with identified criticalities.
The ever-growing diffusion of renewables as electrical generation sources is forcing the power system to face new and challenging regulation problems preserve grid stability. Among these, primary control reserve reckoned be one most important issues, since introduction generators based on renewable energies interconnected through static converters, if relieved from contribution, reduces both inertia available in case network events involving frequency perturbations. In this scenario, plants...
Losses allocation, being a purely economical problem, demands fair allocation procedure that can distribute the losses in an impartial manner by avoiding cross-subsidies among end users. In view of this, novel multi-phase methodology is proposed, which fairly segregates associated with cross-terms phase-currents and also provides explicit information about allocated to neutral. The effect phase loading on another comprehensively taken into consideration while distributing Furthermore,...
In this paper a procedure that allows distributed generation plants (DGs) to be operated as virtual power plant (VPP), maintaining meanwhile the voltage profiles on medium (MV) feeders within permissible interval, is presented. To aim co-ordinated controller proposed. It acts both line tap changer (OLTC) and reactive production of specific so regulation performed whatever working condition (generation units disconnected or partially loaded at maximum power). particular can influence VPP...
The ever-growing penetration of local generation in distribution networks and the large diffusion energy storage systems (ESSs) foreseen near future are bound to affect effectiveness interface protection (IPSs), with negative impact on safety medium voltage (MV) low (LV) systems. With scope preserving main network stability, international national grid connection codes have been updated recently. Consequently, distributed generators (DGs) units increasingly called provide stabilizing...
The recent growth of energy consumptions concerns not only electrical demand. In this perspective, the synergy between different vectors seems to have a key role for future. paper distributed multi-generation in multi-vector networks with hubs and advantages system improving management loads generators electric network are analysed. particular, an optimization procedure based on market interactions is discussed.
A large exploiting of renewables in islanded systems can become more and interesting, both referring to the disconnection portions developed distribution networks first electrification rural areas. control strategy able coordinate different resources systems, aiming preserve voltage frequency stability, is needed. Differently from other works, authors have an approach active reactive generation output with storage requirements features, making no use remote communications between points...
Energy communities (ECs) are becoming increasingly common entities in power distribution networks. To promote local consumption of renewable energy sources, governments supporting members ECs with strong incentives on shared electricity. This policy encourages investments the residential sector for building retrofit interventions and technical equipment renovations. In this paper, a general EC is modeled as an hub, which deemed multi-energy system where different carriers converted or stored...
Power losses and their regulation is a key issue in modern electrical systems, especially distribution networks. In the last few years, number of distributed energy resources has grown dramatically, emphasising importance knowing detail operating conditions efficiency low–voltage (LV) medium-voltage (MV) particular, LV systems are often unbalanced networks experiencing significant neutral current. This aspect could become more critical considering generation its daily profile comparison with...
Low voltage systems are unbalanced networks where a significant share of the users is single-phase connected, so multi-phase system needs to be considered in order assess mutual influence different phases. The presence unevenly distributed users, leads unbalances power flow on three This issue emphasised considering local generators. study presents generalised method for transformers modelling any multi-conductor grid representation allow analysis such as low-voltage distribution systems....
The distribution network modeling is of great importance on power system analysis, considering both quality and stability. Computational effort reduction one the main targets for equivalent representation, even if results reliability remains a key point to be verified. In this paper an improved model proposed, based most commonly used composite load models. Its property generalization ability: can applied networks in various configurations, e.g. with different absorption or share types. A...
Recently, power system customers have changed the way they interact with public networks, playing a more and active role. End-users first installed local small-size generating units, now are being equipped storage devices to increase selfconsumption rate. By suitably managing resources, provision of ancillary services aggregations among several end-users expected evolutions in near future. In upcoming market household-sized devices, sodium-nickel chloride technology seems be an interesting...
Focusing on medium size and large photovoltaic plants typically connected to Medium Voltage distribution networks, their electronic power converters are usually three-phase devices. Depending the sun irradiation profile, influenced by weather conditions seasonal variations, these generators work at partial loading. As a consequence, operating point of PV inverter could be quite far from its current limitation, especially if rectangular or circular capability curve is provided. So there...
The paper provides a novel approach for controllably meshing traditional medium-voltage networks by means of fast-charging parking station with multiple points delivery connected to different radial feeders. Regulating power flows at each point while the charging service is being provided, which actively controlling exchanges between distribution feeders can significantly increase hosting capacity system. Remarkable benefits are expected when infrastructure differ in terms main...
Management of intentional islanded networks is becoming more and interesting both in developed contexts as first electrification rural areas, presently not reached by central transmission distribution networks. In systems or network portions operating disconnected from the main grid, aiming to maximize exploitation renewable sources, new control strategies guarantee frequency voltage stability are required. An effective compensation load variations optimal management generators'...
Extending the Primary Control Reserve to all renewable generating plants could be an interesting solution preserve electrical power system stability. With this measure, grid enhances its frequency regulation effectiveness and is consequently able maintain stable operating conditions in case of sudden variations either load or generation. In scenario, instead intentionally throttling plant output for providing upward reserve, use Battery Energy Storage Systems introduced. This allows maximize...