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 presents an indirect matrix converter (IMC) topology to fed an open-end winding load directly from three-phase ac power supply without using any intermediate energy storage element. The presented topology is combined a conventional bidirectional rectifier stage and dual two-level inverter stage. The carrier-based pulse width modulation (CBPWM) suitable to this converter controlled is also...
This paper presents an investigation on carrier-based PWM method of post-fault reconfigured topology for the three-level neutral-point-clamp (3-level NPC) inverter. The operation of 3-level NPC under device failure conditions is analyzed and the proposed fault-tolerant PWM strategy is able to continuously the operation of the inverter. The proposed carrier-based method is simple without complexity...
Common-mode voltage (CMV) is responsible for overvoltage stress to the winding insulation and bearing damage of an AC motor. High dv/dt of CMV causes leakage currents, which create noise problems to the equipments installed near the converter. This paper proposes modulation strategy for three-level T-type NPC that substantially eliminates CMV. The principles of selecting suitable triangle carrier...
The matrix converters are a good alternative to back-to-back converter in variable speed AC generation to supply energy to a stand-alone load or grid. In case of the unbalanced load, the four-leg matrix converter is required because this topology can effectively provide a path of neutral current. In this paper, a carrier-based PWM modulation is proposed to control the four-leg very sparse matrix converter...
In this paper, a control strategy for a four-leg indirect matrix converter under unbalanced load condition is described. The four-leg indirect matrix converter can synthesise any desired three-phase line-to-neutral voltage. In order to obtain the reference output voltage under unbalanced load condition, the control strategy for four-leg indirect matrix converter is based on the decomposition of the...
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.