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.
This paper proposes a DC-bus signaling (DBS) method for a power management in a DC microgrid. In order to autonomously increase its reliability and response speed. As opposed to a centralized power management system, which needs communication among the power sources and load, the proposed DBS method uses the common DC-bus voltage to determine proper operation and does not require communication. The...
In this paper, a simple voltage balance controller for a SST using cascaded H-bridge rectifiers is proposed to deal with voltage unbalance problem of DC-links. The tolerance of parameters on DC-DC stage, which consists of parallel-connected DAB converters, can cause the unbalance problem of output voltage on H-bridge rectifiers. In order to solve this unbalance problem, an additional voltage balance...
A modular multi-level converter (MMC) is composed of many sub-modules (SMs). Each SM needs a power supply to drive insulated-gate bipolar transistor (IGBT) and control power. The MMC system has a power of 100MW, a dc link voltage of 250kV, and a total of 125 SMs. This means that each SM has a rated input voltage of 2kV. This high input voltage should be converted to low load voltage by the power supply...
In this paper, a simple voltage balance method for a SST using cascaded H-bridge converters is proposed to reduce the voltage difference of H-bridge converters. The tolerance of DAB converter's passive components in each secondary stage causes the unbalance problem of output voltage in primary side H-bridge converter. In order to reduce the voltage difference of H-bridge converters, the additional...
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.