The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Micro grid (MG) is becoming a very good substitution for traditional grid. It is capable of supply DC or AC power with the help of hybrid distributed generator. These are capable maintain good power quality (PQ) and reliable supply with full control over voltage and current. MG could optimize capital resource by reducing maintenances and operating cost. This reduces loss and generation cost and increases...
Reasonable control of multiple energy forms for load power supply can effectively improve economy and reliability of micro-grid(MG) operation, however, up till now, these two problems of siting hybrid energy systems(HEMS) and scheduling them have been separately solved. In order to bring its flexible power supply capacity into fully play, this paper put forward an algorithm to optimally solve the...
In some countries, electrical distribution lines have to cross areas where the installation cost could be very high and carrying out maintenance could become extremely difficult (e.g. desert areas). As a result, frequent power disconnections and blackout heavily affect the quality of supply of end-users. Oppositely, the renewable energy sources exploitation in supplying portions of the distribution...
Modern micro-grid needs to integrate all possible and economically attractive renewable energy resources. In many cases these generations are not smooth in nature and are situated in remote locations where regular maintenance is difficult. This paper proposes a brushless generation system using a dual stator winding induction generator (DSWIG). The power winding of the DSWIG is connected to the grid...
The idea of reshaping existing centralized electricity networks to decentralized small scale local power networks namely micro-grids, operating whether autonomous or interconnected to main distribution grid, became an important discussion. Islanding of a generator inside the micro-grid can cause problems in operation and management of the network; therefore proper islanding detection is crucial. This...
In recent decades, smart grid have become increasingly attractive to both energy producers and consumers. Amongst the main challenges for the successful realization of smart grid includes the integration of renewable energy resources, real time demand response and management of intermittent energy resources. Apart from smart grid, the development of micro-grids should take into consideration of issues...
The paper discusses the design and global performance of a cogeneration unit suitable for distributed energy conversion based on an automotive internal combustion engine, which is a spark ignition methane fuelled unit, previously converted from a Diesel engine and chosen on the market as an efficient, low cost energy powerplant, to be adopted for different applications (such as domestic and commercial)...
The paper deals with the design of a prototype of a small microcogeneration unit of about 2 kW electric power and about 5 kW thermal power, suitable for residential off grid applications, designed and developed at Istituto Motori CNR of Italy. This unit has been conceived specifically as a recharging system for energy conversion system for houses, having in low noise and vibration, durability and...
The progressive penetration level of Distributed Generation (DG) is destined to cause deep changes in the existing distribution networks no longer considered as passive terminations of the whole electrical system. A possible solution is the realization of small networks, namely the Micro-Grids, reproducing in themselves the structure of the main production and distribution of the electrical energy...
The progressive penetration level of Distributed Generation (DG) is destined to cause deep changes in the existing distribution networks no longer considered as passive terminations of the whole electrical system. A possible solution is the realization of small networks, namely the Micro-Grids, reproducing in themselves the structure of the main production and distribution of the electrical energy...
Nowadays, technologies of distributed generation (DG) and distributed energy resource (DER) are developing rapidly. It has been demonstrated to be more reliable and economical that DGs or DERs are integrated into the traditional power grid based on micro-grid. So, more and more micro-grids will occur in distribution system in the future. In this paper, we mainly concern and discuss the impact of micro-grids...
The paper studies distribution network with comprehensive micro-grid systems with an aim to design an advanced protection and control scheme. The proposed integrated protection and control (IPC) unit, interfacing to the substation measurement devices and micro-grid components through a substation optical Ethernet, is responsible for the protection of the distribution substation and control of its...
The author worked on distributed generation (DG) connected to the transmission and distribution GRIDS of Ontario Hydro, from 1985 to 1999. During that period, he has experienced lots of technical problems in connecting to the GRID. In this paper, he would discuss his experiences with the following topics: 1) Types of DG's, including sources of prime power (e.g. water, gas, wind, solar, etc.) in brief...
This paper discusses the application of a shunt active power filter with energy storage, for voltage and power improvements within a local power supply network (micro-grid) in presence of distributed generation. Theoretical analysis investigates the control the shunt active power filter in response to voltage sag. The shunt active filter operates over a short period of time, and is coordinated with...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.