Model predictive control of vehicle charging stations in grid-connected microgrids: An implementation study

The transition to renewable energy sources, particularly sources like wind and solar induces a dependency on weather in the supply side of electrical grids. At the same time, the move to electric mobility with uncontrolled charging induces extra peak loads on these grids. These developments can cause grid congestion or an imbalance between the...

Techno-economic assessment of grid-connected photovoltaic systems for peak shaving in arid areas based on experimental data

In recent years, grid-connected photovoltaic system (GCPVS) has been installed at a steady pace around the world due to its clean energy generation, simple operation, and low maintenance. This technology is also a convenient solution for peak shaving in residential and commercial buildings of arid areas with great air conditioning demand in...

Lyapunov-Based Model Predictive Control for Stable Operation of a 9-Level Crossover Switches Cell Inverter in Grid Connection Mode

This study proposes the application of a Lyapunov-based Model Predictive Control (L-MPC) approach to a 9-level Crossover Switches Cell (CSC9) converter operating in grid connection mode. The proposed method utilizes the structure of the classical finite-control-set MPC (FCS-MPC) technique while integrating a cost function that requires no tuning...

System Design And Advisory Control Strategy For An Offshore Stand-Alone Hydrogen-Only Wind Turbine

Producing hydrogen from renewable energy sources will play a pivotal role in the energy transition. It can reduce emissions in hard-to-abate sectors and be used for grid balancing services. The energy industry is looking into multiple different system configurations to produce green hydrogen. One such system is an offshore stand-alone wind...

Hybrid Si/SiC Switch Modulation with Minimum SiC MOSFET Conduction in Grid Connected Voltage Source Converters

In this article, a hybrid Si/Si carbide (SiC) switch (HyS) modulation with minimum SiC MOSFET conduction (mcHyS) is experimentally characterized, so as to derive its conduction and switching performance. These are later used to derive a silicon (Si) area analytical model for the HyS configuration. The chip area model is used to benchmark the...

A Comprehensive Review on Off-Grid and Hybrid Charging Systems for Electric Vehicles

In recent years, the research interest in off-grid (standalone mode) and hybrid (capable of both standalone and grid-connected modes) charging systems for electric vehicles (EVs) has increased. The main reason is to provide a seamless charging infrastructure in urban and rural areas where the electrical grid is unreliable or unavailable so that...

A Brief Climatology of Dunkelflaute Events over and Surrounding the North and Baltic Sea Areas

In the coming decades, the European energy system is expected to become increasingly reliant on non-dispatchable generation such as wind and solar power. Under such a renewable energy scenario, a better characterization of the extreme weather condition ‘Dunkelflaute’, which can lead to a sustained reduction of wind and solar power, is important....

Electromechanical design of synchronous power controller in grid integration of renewable power converters to support dynamic stability

Nowadays, modern power converters installed in renewable power plants can provide flexible electromechanical characteristics that rely on the developed control technologies such as Synchronous Power Controller (SPC). Since high renewable penetrated power grids result in a low-inertia system, this electromechanical characteristic provides...

Techno-economical design study for a sustainable power station powered by simultaneity of wind, solar, and an integrated Li-ion battery

Our present-day society is utterly dependant on electricity. This dependence will only grow as electrification of sectors such as manufacturing, transportation and building heating takes off. Most of the electricity these days comes from conventional plants running on coal and natural gas. Despite that these are reliable and cheap, the...

Number of Levels, Arm Inductance and Modulation Trade-offs for High Power Medium Voltage Grid-Connected Modular Multilevel Converters

There is an increasing focus on integrating flexible dc links for bulk power routing in medium voltage distribution grids. In such applications, the ac-dc Modular Multilevel Converter (MMC) devised for medium voltage and high-power ratings can be an interesting choice. This paper highlights some less explored design trade-offs arising due to...

The Suitable Combination of Power Management Method and Electricity Tariff for Prosumers

The growing attention on renewable energy has already brought a rapid evolution in this field. As one of the most abundant energy on this planet, the solar energy starts to play an important role in the energy market. Various policies have already been proposed to encourage the renewable energy development. With the PV panels involved in the...

Low Short Circuit Ratio Connection of Wind Power Plants

Primary factor for the site selection during the planning process of the large modern wind farms is the wind climate, which is usually favorable at remote and offshore locations where the public grid is not particularly strong. Among the consequences of this solution is the necessity to connect wind farms to weak points of the grid and the...

Developing sustainable public lighting for residential streets

Public street lighting has a major influence on safety, perception of safety and atmosphere perception. The municipality of Rotterdam has the obligation to provide the city with public street lighting. Also, they have the desire to create a pleasant atmosphere in the city during both day and night. A user study performed for this project has...

Sustainable Microgrid for charging electric vehicles from on-road contactless power transfer systems

A sustainable microgrid for supplying power to electric vehicles (EVs) is investigated in this thesis. The energy produced by the microgrid would be directly transferred to the electric vehicles via on-road charging systems. The proposed sustainable microgrid is located on the roadside and consists of wind turbines, solar panels and a stationary...