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.
Having a network of fast charging stations seems necessary in order to make EVs more attractive and to achieve larger uptake of them. Currently, 50 kW quick chargers that can charge a typical EV in about an hour are commercially available. However, a 240 kW fast charging level which can charge a typical EV in 10 minutes has been introduced in standards. It is expected that this high power fast chargers...
Widespread acceptance of Plug-in Electric Vehicles depends on the presence of charging infrastructures with filling times close to those of petrol stations. On the other hand, the roll out of fast charging stations which have significant power demand would cause several issues in the power grid such as overload, voltage drop and power loss. Therefore, to avoid costly upgrades in the existing power...
In Queensland, Australia, the statutory regulation for an electricity distribution network is to deliver a voltage within ± 6% to customers from the nominal value of 240 V. Typically, voltage control is determined using the system load as the main driver. This approach gives preference to customers that use more energy. This paper presents a customer-weighted method to control the voltage regulation...
The increasing penetration of small sized distributed generators within close proximity to each other in distribution systems can bring about negative interactions among them. This paper presents the issues of system and control interactions among several distributed energy resource (DER) controllers that can affect the operation and design of a distribution system. The impact of tuning controllers...
Along with a number of benefits, large penetration of distributed generation (DG) units in the distribution system imposes some serious challenges for power engineers. Slow voltage recovery under post-fault condition turns up as one of the most critical problems in small DG integration. Majority of the small DG units trip due to lack of fault ride-through (FRT) capability, and hence, challenges the...
The integration of large-scale distributed generation (DG) and energy storage significantly affect the dynamic behaviors of distribution systems. Distributed systems are facing new challenges in terms of their dynamic behaviors due to the addition of large-scale DG into low-voltage distribution systems. This paper analyses the important effects of the penetration of large-scale wind, solar and energy...
This paper discusses modeling of a micro-grid with PV-Wind-Diesel generator hybrid system and its operations. The PV system is modeled with a DC/AC inverter with a pre-defined Maximum Power Point Tracking (MPPT) control. Fixed speed induction generator based wind turbines are used to model the wind farm. The diesel generator controls are modeled with droop governor and automatic voltage regulator...
This paper presents the analysis and the control of shunt-compensator for improving unbalanced voltages of power distribution systems in Thailand. The shunt-compensator is connected to the low voltage level in power distribution system. The analysis detail and the design of shunt-compensator obtain by using the voltage vector control (mathematical model with the stationary reference frame and synchronous...
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.