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.
In this paper reduction of common mode voltage (CMV) for five phases open end load system is discussed. Open end load is fed through three-to-five phases dual matrix converters (DMC). Space vector pulse width modulation (SVPWM) technique is used for the modulation of the DMC which is assumed to have two stages rectification and inversion. Their controls are separate and independent of each other....
This paper compares four different commutation strategies for a new monolithic dual-gate bidirectional IGBT (BD-IGBT) in matrix converters. A new variable-timing four-step commutation and an one-step commutation control strategies are proposed and compared with the conventional and the two-level four-step commutation methods reported previously. Operation modes and power losses of the BD-IGBT using...
The matrix converter rectifier is an AC-to-DC converter that can be considered for emerging applications, related to smart grids and renewable energy production. The most attractive characteristics of this converter are the simultaneous control of the input power factor and the output voltage, and the small volume of the input capacitors. In this paper, after a small review of the modulation techniques,...
This paper proposes an error-voltage based open-switch fault diagnosis strategy for matrix converter (MC). First, finite control set-model predictive control (FCS-MPC) method is used to operate the MC. Meanwhile, based on the analysis of the operating state under fault condition, the fault model of MC is established. Second, the fault diagnosis strategy is implemented in three steps: to begin with,...
A modular multilevel matrix converter (MMMxC) has nine arms and each of the arms is composed of H-bridge cells connected in cascade. It can be applied to high voltage ac-ac converters for variable speed wind turbines and motor drives. In this paper, employment of a hierarchical control system for the MMMxC is first considered to distribute computational burden among processors and simplify hardware...
This paper presents a new PWM switching technique for controlling a bidirectional isolated DC-AC-AC inverter along with its soft-switching technique. The proposed PWM technique has the ability to control the input DC current and to inject a sinusoidal three-phase current to the grid at unity power factor. In the first stage, an H-bridge converter is used to convert the DC voltage to a high-frequency...
This paper presents a novel unipolar SPWM-oriented modulation for the isolated bi-directional DC-to-three-phase-AC converter with high-frequency-link (HFL) using SiC MOSFETs. The converter consists of a full bridge (FB) stage and a single-to-three-phase matrix converter with high frequency transformer isolation. Under the proposed modulation, zero voltage switching (ZVS) is realized for the full bridge...
Finite States Model Predictive Control (MPC) has been recently applied to several converters topologies for the many advantages it can provide such as fast dynamics, multi-target control capabilities, easy implementation on digital control board and capability of including constraints in the control law. However, its variable switching frequency and lower steady state waveform quality, with respect...
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.