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.
Lead acid batteries are still broadly used in stand alone photovoltaics. The main concerns within the use of this type of batteries are high cycling and the prolonged undervoltage state, which leads to sulfation. This work proposes a method of reverting the battery sulfation and reducing the gases formation using a three-step battery charger. A bidirectional converter in which the output current is...
This paper describes the characteristics of the Brazilian energy distribution market. A simulation of cost/impact due to a roll out of smart meters is preformed based on market values. The results show a significant increase in the rates to pay for the necessary investments. The paper also outlines a structure that enables the reduction of implementation costs by focusing of the expected benefits...
This paper presents the updated results on research for development of a static switch for operation in medium voltage. It shows the results of the algorithm that detects an outage and enables the digital processing to control the static switch. This algorithm was based on the Clarke and Park transforms. The operation of the switch consists of transferring the power supply from the main source, where...
This paper presents the updated results on research for development of a static switch for operation in medium voltage. It shows the results of the algorithm that detects an outage and enables the digital processing to control the static switch. This algorithm was based on the Clarke and Park transforms. The operation of the switch consists of transferring the power supply from the main source, where...
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.