Development of an analytical model for a special design asynchronous motor

Electrical motors have been widely used in various fields for hundreds of years. The asynchronous motor is always an interesting topic due to its advantage of the simple structure, robustness, low maintenance cost and long lifetime. In this research, a special structure rotor is used instead of the classical squirrel cage rotor. To understand...

Optimal design of a non-isolated high power density buck-boost converter

Semiconductor lifetime and power density are considered to be two important development directions of power converter design in the future. Especially in some high dynamic application, the operation condition is changing frequently causing the temperature swing of semiconductor, and it leads to thermal expansion and contraction which affects the...

Modeling and Control of a Solid State Transformer and verification with Controller Hardware in the Loop

Climate change is driving the evolving energy mix in the world. The amount of renewables are rising to avoid the detrimental effects of fossil fuels to the environment. Solar and wind power are the major players in the rising renewable energy mix. Most of these power generation sources are interfaced through power electronic converters. In the...

Flexibility in Future Power Systems with High Renewable Energy Penetration

Future energy systems will present high penetrations of variable renewable energy (VRES). Due to the uncertainty that is related to the intermittency of wind and solar energy, and loads such as electric vehicles, the need for flexibility will be higher. This research identifies the possible sources of flexibility in a power system. Firstly,...

Control of a resonant wireless e-bike charging converter

The Wireless Power Transfer (WPT) has been introduced decades ago for low power applications, and more recently, it has been used for industrial high power applications. WPT is gaining popularity because it presents several advantages over the power transfer through cable, such as the galvanic insulation between the power source and the load,...

Noise Modelling and Reduction of Permanet Magnet Motor in EV

This paper aimes to present noise reduction methodology considering switching effect. For noise analysis, Nissan LEAF motor is benchmarked and the motor is simulated in the software 'COMSOL'. <br/>Based on the result, hybrid method is proposed for noise modelling and its accuracy is validated from numerical simulation. Afterwards, noise...

Analysis and Optimization of Medium Voltage-Line Voltage Regulators

In recent years, distribution networks have been facing voltage quality issues due to the influx of renewable energy. Rural areas which are ideal for renewable energy development due to large vacant areas are faced with grid voltage variations due to long distribution lines. Because of the stringent conditions laid by the Distribution System...

AC and DC Residential System Comparison with Penetration of PV and Battery Storage

The battle between the alternating current(AC) and direct current(DC) can be traced back to the late 19th century. Apparently, it ended up with the victory of AC. However, the growing use of the renewable energy sources that mostly are DC supplier, and the advancement of power electronics lead to the reconsideration of using DC power by public...

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...

Hybrid Circuit Breaker Analysis for DC Applications

The war of the currents started in the late 1880s and early 1890s between the main players being: the direct current (DC)–based Edison Electric Light Company and the alternating current (AC)–based Westinghouse Electric Company. AC came out as the winner because of the need to increase voltage with AC transformers for long-distance power...

Direct Current Power Flow: Computational methods and low voltage applications

Technical developments in generation and demand of energy will motivate significant change in the electric power grid, both on the transmission and the distribution level. A major innovation would be the successful transformation of the current passive power grid towards an active and ICT-based smart grid. Among the technical efforts that will...

Impact Analysis of a Virtual Power Plant

The development of the renewable industry is still accelerating. The Netherlands contributes to roughly 1,5 GW solar PV capacity and domestic PV systems are increasingly popular. Another aggressively growing energy technology which is currently reaching its maturity is energy storage, which is also indicated as a “missing link to renewable...

Control of a three-port converter for human power

In the Netherlands alone, 1.1 million people have been diagnosed with diabetes, and per week 1200 people are diagnosed. Obesity is also a serious problem of our modern society. These health issues can be reduced by promoting a healthy lifestyle, incorporating regular exercise. To make the exercise even more attractive, the output energy of the...

Protection of HVDC grids using DC Hub

Nowadays there is a movement towards the creation of HVDC grids. The massive integration of renewable energy sources, the operation of the current grid close to its limits and the need to facilitate the power trade are some of the reasons driving the research on HVDC grids. Towards HVDC grids, there are still some obstacles and technical...

Multi-port DC hub based on the Modular Multilevel Converter for Multi-terminal HVDC grids

It is expected that DC grids will evolve into large meshed networks, which will have multiple DC voltage levels. Two DC grids operating at different voltage levels could be interconnected using a DC-DC converter. The role of the DC-DC converter in meshed DC networks is similar to the role of a transformer in traditional AC systems. The DC-DC...

Small-Signal Stability Modelling and Analysis of Modular Multilevel Converter and its Closed-Loop Controllers

As the transformation of the electricity generation progresses, the number of power electronic-based devices connected to the electricity grid is expected to grow. To ensure the stability of the power system in a scenario with high penetration of power electronic converters, the dynamics and stability characteristics of these devices have to be...

Development of Transfer Standards for SSL Measurement

Solid-state lighting (SSL) is the most energy-efficient lighting technology in the present lighting market. With high efficiency, good quality and nice lighting appearance, SSL products are highly expected to replace low efficient and environmental unfriendly incandescent light bulbs in the near future. An international organization has been...