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The share of decentralized power generation is increasing, which causes general changes and challenges for the conventional power system. Hence, distribution system operators (DSO) need new technologies to ensure the stability of the entire electrical power system. As a feasible solution for structuring power networks, the Clustering Power System Approach (CPSA) has been introduced, providing an innovative...
Dm to the trend of decentralized generation (DG) residing in low voltage distribution network, more inverters are connected to the grid in three-phase four-wire systems under asymmetrical condition. This paper presents an algorithm to balance DC-link capacitor voltages and minimize switching loss of three-level four-leg inverters which is suitable for asymmetrical condition. The algorithm is based...
Decentralized, renewable energy sources has grown fast as a sustainable and clean alternative energy to overcome the carbon emissions caused by conventional power plants. However, this change leads to several challenges related to grid control, resulting in a need of new smart grid concepts. Therefore, Clustering Power System Approach (CPSA) has been introduced as a suitable smart grid concept. Meanwhile,...
As the amount of decentralized generation is continuously increasing the controlling and maintaining of grid stability becomes more complex. This is caused by a change of production capacities from the high voltage area into the distribution network. In order to ensure stability of future smart grids a new 3-Level 4-Leg inverter as a part of a power electronic regulator is introduced. This topology...
The concept of smart grids has been widely introduced to cope with energy transition towards sustainable energy, which results in decentralization of the energy supply. Among various solutions to accomplish the smart grids, clustering power systems approach (CPSA) is proposed. This approach creates active decentralized areas in the form of interconnected cluster areas equipped with their own controller...
The concept of smart grids has been widely introduced to cope with energy transition towards sustainable energy system, which results in decentralization of the energy supply system. Among various solutions to accomplish the smart grids, clustering power systems approach (CPSA) has been proposed. Based on this approach, active interconnected cluster areas, operating similar to interconnected grids...
The high amount of decentralized generators based on renewable energy sources has been installed and operated in power grids, mostly in distribution level. This changes the structure of power supply system and power system operation. The smart grid concept is, currently, proposed to meet the challenge of the changes. Among many solutions, clustering power systems approach (CPSA) has been proposed...
A new approaches of energy supply system management has been widely discussed due to a penetration of distributed generation based on renewable energy resources in distribution network. One approach to accomplish distribution network management is to turn a passive distribution network to be an active network like conventional transmission network, in which there is a supervisory control for grid...
As the amount of decentralized generation is continuously increasing the control and maintaining of the grid stability becomes more complex. This is caused by the change of production capacities from the high voltage area into the distribution network. In order to ensure the stability of future smart grids a new 4-leg 4-wire inverter as a part of a power electronic regulator is introduced. The features...
The increase of the share of distributed generations (DGs) based on renewable energy sources, which mostly reside in distribution networks, in current power systems can cause stability problems because traditionally the power is fed by bulk power plants through transmission systems. Accordingly, clustering power system approach (CPSA) has been devised to facilitate the integration of DGs to the power...
The penetration of distributed energy resources in distribution networks leads to the decentralisation of the power generation. This is contrary to the traditional centralized power generation where the power is fed from transmission systems. To cope with the impact of the decentralised power generation, clustering power systems approach (CPSA) is proposed. It is an approach that coexists operations...
The ongoing trend to sustainable energy supply based on renewable energies is coming along with new challenges in network control. Especially in the low voltage distribution networks, new control structures are required, since they have been considered as a passive system in regards of network control. As a feasible solution for structuring power networks the Clustering Power System Approach (CPSA)...
The power generation in power systems nowadays changes from the traditional centralized to contemporary decentralized structure that disperses widely in distribution grids. It results in power generation from the bottom level, i.e. in local area, which is contrary to the traditional centralized power generation that provides power flow in top-to-down direction. A way to handle the impact of power...
Since photovoltaic systems, wind energy, and other renewable energy resources are concerned as sustainable and environmental friendly for the future grid, conventional energy supply systems are facing a huge change regarding their integration. To assure and provide a flexible and a system compatible integration of those decentralized energy resources, power electronic inverters as grid interfaces...
To move toward sustainable electrical power supply systems, a large number of decentralized energy conversion systems (ECSs) based on renewable energy sources (RESs) are integrated into network, especially into distribution networks. According to those drastic changes in power supply systems, the power systems have to be cautiously clarified and managed for grid integration, since the current distribution...
Clustering power systems approach has been recently discussed as a sustainable strategy for distributed generation. Aim of this concept is to turn a passive distribution network to be an active network by clustering power systems into small areas and establishing downsized conventional control strategy. Consequently, each cluster can be operated based on each area. Obviously, the cluster network structure...
A grid integration ratio of decentralized energy conversion systems (ECSs) in combination with renewable energy sources (RESs) has been recently increased in order to build up sustainable electrical power supply systems. Due to those changes, it can be predicted that the decentralized systems will change the conventional top-down power flow process to be the bidirectional process. Then the power flow...
Currently in the power supply system, a large number of decentralized energy conversion systems (ECSs) based on renewable energy sources (RESs) and intelligent infrastructures are installed into the conventional power systems in order to build up “Smart Grid”. These leads, the power systems have to be carefully clarified and managed for grid integration. The control strategy and management concept...
A large number of new and decentralized energy conversion systems (ECSs) in combination with renewable energy sources (RESs) have recently been integrated into the conventional grid to build up sustainable energy supply systems. This is one of main challenge of future smart grids. Thus, currently there are plenty researches focusing on the grid integration such as clustering concept. By clustering...
Distributed generators (DGs) in Smart Grids should actively participate in the grid control of active power (P), reactive power (Q), frequency (f), and voltage (U) through their grid interfaces, namely inverters. As these DGs are joining the existing conventional power systems and for smooth transition towards Smart Grids, these DGs must follow the existing grid control, which is used by the UCTE...
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