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.
Micro grid(MG) consists of a number of parallel operating inverters. The droop control strategy is commonly used in parallel-connected inverters. The conventional PI regulator for the voltage control has little effect on restraining the voltage harmonic content under the nonlinear load conditions. So an effective and reasonable control strategy for inverters must be adopted to ensure the output power...
Due to the poor efficiencies of many linear loads advanced power electronics based technologies are being introduced in residential, commercial and industrial applications to help in reducing the electrical consumption and increasing power control capabilities. This proliferation of nonlinear loads increases concerns of various power quality issues related to the use of such devices in power systems...
This paper presents an approach of incorporating hardware-in-the-loop simulation and ADALINE for shunt active power filter (APF) design. Even when the three-phase source voltages are unbalanced and/or distorted and supply to a nonlinear load, the described compensation strategy can compensate the harmonic and neutral current, and thus improve the power factor. After verifying the efficiency of compensation...
A novel power electronic load (PEL) is introduced in this paper. This equipment can simulate R,L,C load as well as non-linear load. Furthermore, it can recycle the energy back to grid. Topology for single phase AC PEL, three-phase AC PEL, and DC PEL are presented firstly. Based on disadvantages of repetitive controller, an improved repetitive controller is presented to improve the dynamic performance...
In this paper an average current sharing mu-based robust controller for parallel multi-inverter systems is presented. There is one common output voltage controller to achieve low total harmonic distortion (THD) and good regulation. Each inverter module has also a robust current controller to track the averaged output current. This loop provides equal current distribution between inverters. The command...
Due to the harmonic caused by the nonlinear load, the error of electric power measurement still exist in power system at present. To settle the problem, a new kind of measurement mode based on partial least-squares regression method is presented in this paper. The model of electric system and the model of harmonic meter have been completed by MATLAB. Utilizing the signals of harmonic voltage and harmonic...
This paper presents a modeling process for the cascade H-bridge three-phase multilevel converter used as a shunt active filter. Based on the proposed mathematical model, a controller is designed to compensate harmonic distortion and reactive power due to a nonlinear load. Simultaneously, the controller guarantees regulation and balance of all capacitor voltages. The idea behind the controller is to...
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.