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.
When applying the permanent magnetic synchronous motors (PMSM) to refrigerant system, the suppression of speed ripples of the PMSM in low-feed range becomes the focus of consideration. The authors start with the generation mechanism and the periodical characteristics of the speed ripples to propose an adaptive control method. In the proposed method, the authors place a frequency variable resonance...
This paper describes the MTPA (maximum torque per ampere) control strategy of Salient-pole PMSM (permanent magnet synchronous motor) and its flux-weaking control strategy. Salient-pole PMSM often used the MTPA control strategy, the method that MTPA curves obtained from look-up table is usually used, but it will reduce the real-time performance and reliability of the system. In this paper, electromagnetic...
Two permanent magnet synchronous motors (PMSM) whose rotor magnetic circuit structures were radial and tangential were designed. vector potential and energy methods were used to calculate the electromagnetic parameters of the motors. Based on the mathematical model, the torque characteristics were calculated, control performances within constant torque and constant power control area were analysed...
Introduced a new type of maximum power point tracking strategy (MPPT) based on variable step hill-climb which use power perturbation to search for maximum power and record the maximum power related to the turbine speed. Besides, adopted power feedback control for maximum power control based on direct-driven wind turbine with permanent magnet synchronous generator (D-PMSG). The algorithm was proved...
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.