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 original method for sensorless speed control of Permanent Magnet Motors (PMM). The proposed method is robust to parameter variations, does not require a starting sequence and shows good performance at low and high speeds operation. The benefits mentioned above are achieved by combining features of volts per hertz and vector control methods. The proposed method uses the q axis...
In renewable energy systems, the highly intermittent nature of energy sources with the unpredicted nature of load and grid availability make it a great challenge to operate and transition a system seamlessly under large number of modes while still being able to follow the command of the supervisory control. In this work, an advanced control technique is proposed to integrate energy storage elements...
The key requirements for the control of the photovoltaic (PV) energy conversion systems are to achieve very fast yet quite accurate tracking of the maximum power point under rapidly changing environmental conditions and to obtain efficient unperturbed tracking operation under steady environmental conditions. In this work, a high-performance Maximum Power Point Tracking (MPPT) technique, based on existing...
The aim of this work is the development of a system-level wind turbine control strategy that allows wind turbines to operate in grid-connected or off-grid mode and transition seamlessly between these modes of operation. Conventional wind turbines with a front-end inverter are designed to work as a grid tie system meaning that the inverter needs the grid voltage to synchronize and the inverter becomes...
The aim of this work is the development of a solar photovoltaic generation system based on a standard power electronics cell for microgrid applications. The proposed system is capable of providing security of supply by delivering uninterrupted power to critical loads in standalone operation and transitioning seamlessly between stand alone and grid connected mode. To mitigate the effect of variability...
The aim of this work is the development of an 80kW solar photovoltaic generation system based on a standard power electronics cell for microgrid applications. The proposed system is capable to provide security of supply by delivering uninterrupted power to critical loads in standalone operation and transition seamlessly between stand alone and grid connected mode. To mitigate the effect of variability...
The paper provides a general framework, with theoretical contributions and overview of methods for the analysis of elimination and control of harmonic components in power electronics applications. The internal model principle was introduced first as it provides a general controller formulation for tracking of (a) DC type of signals (b) harmonic - sine and cosine signals and (c) repetitive - arbitrary...
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.