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.
Control of power electronic generations is important in microgrids and power systems. Droop control is proposed for reasonable power allocation among different inverters. Moreover, virtual synchronous generator is proposed to improve frequency dynamics in transient state. Therefore, inertia design in VSG is necessary for integrating power electronic generations into grids. Frequency dynamic and stability...
This paper proposes an islanded hybrid microgrid system with dual voltage source inverter (DVSI) using instantaneous symmetrical component theory (ISCT) for reference current generation and power management. In this work a reduced DC link voltage has been achieved and efficient, simple power management algorithm (PMA) which takes account of load shedding and off-MPPT operation is proposed under islanded...
This paper proposes a fully decentralized control scheme for hybrid AC/DC microgrids. It proportionally shares the loads in a hybrid AC/DC microgrid among its sub-grids. By controlling the interlinking converters as voltage source inverters, the scheme enables the hybrid microgrid to operate with or without AC sources. It is possible to shut down all the power sources in the AC sub-grid to minimize...
The concept of microgrid can integrate large amounts of Distributed Generations (DG) into power system and provide higher reliability, energy security and surety to critical loads. A Virtual Droop Control (VDC) method is proposed for the power management and voltage and frequency regulation and has been applied to the Fort Sill microgrid. The state space models for the microgrid components and systems...
This paper presents a power management concept for DC microgrids where the DC bus voltage is used as the mean of communications between the microgrid components. It is proposed that the energy storage system always controls the DC bus voltage independently of the microgrid mode of operation and sets its value based on power and energy management rules to activate responses from the other components...
The paper presents a general control technique for Utility Interfaces acting in low-voltage microgrids. The Utility Interface (UI) is a three-phase power conversion unit, equipped with energy storage, which governs the interaction between the utility and the microgrid. It is in charge of several functions: in grid-connected operation, UI performs as a voltage-supporting unit and compensates for reactive...
Microgrids are receiving tremendous attention due to increasing need to integrate Distributed Generations (DG) and to provide reliable power to critical loads. Proper power management in microgrid is required to regulate the system voltage and frequency, maintain power quality, and manage DGs. A microgrid system has been studied in this paper, which includes two natural gas generators, an energy storage...
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.