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.
Energy behaviors are closely linked to the reliability of converters. However, there is not a scientific methodology to describe the energy characterization inside converters intuitionally. In this paper, energy flow in some basic units of converters is modeled based on the electromagnetic theory and the circuit theory. At this basis, a novel energy topology is investigated. Compared with the common...
The widely used Boost type front-end Power factor correction (PFC) circuit for electric vehicle (EV) chargers has a common problem that, the bulky dc-bus capacitor will cause uncontrollable start-up surge current, which is a hidden trouble for system reliability. The reason for surge current is analyzed and a step-variable soft start control method is developed in this paper. A CPLD based phase shift...
Although the maximum collector–emitter voltage of a high-voltage insulated-gate bipolar transistor (HV-IGBT) reaches 3300 V or higher, it still cannot satisfy the requirements of some high-voltage high-power converters. Applying power semiconductor devices in series connection can effectively improve the voltage rating and power rating of a power electronic converter. The key issue of device series...
Although the maximum collector-emitter voltage of high voltage insulated gate bipolar transistor (HV-IGBT) reaches 3300V or higher, it still cannot satisfy the requirements of some high voltage high power converters. Applying power semiconductor devices in series connection can effectively improve the voltage rating and power rating of power electronic converter. The key issue of device series connection...
Grid-connected LCL filter of voltage source PWM rectifier (VSR) can not only reduce the values of inductance, improve the system dynamic response, but also reduce the cost. However, LCL filter brings stability problem if no damping method is adopted. In order to guarantee the stability and high power factor of VSR at the same time, active damping control method rather than reactive damping method...
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.