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A 3-phase voltage disturbance generator applicable for the operation of nonlinear load is proposed. To test the performance of the custom power devices such as DVR, SSTS, dynamic UPS, etc., a voltage disturbance generator is necessary. The proposed generator has good features of high reliability, low cost, simple structure, high efficiency, and reduced voltage drop in normal operation. The main switching...
The paper presents on new developments in the application of continuum design sensitivity analysis to design optimisation. Fast convergence, the ability to use existing electromagnetic software without the need to access source codes and independence of computing times on the number of design variables are the distinctive features of the proposed implementation. The design procedure of shape optimization...
Bidirectional DC-DC converters allow transfer of power between two dc sources, in either direction. Due to their ability to reverse the direction of flow of power, they are being increasingly used in many applications such as battery charger/dischargers, dc uninterruptible power supplies, electrical vehicle motor drives, aerospace power systems, telecom power supplies, etc. This paper proposes a new...
Bidirectional DC-DC converters allow transfer of power between two dc sources, in either direction. Due to their ability to reverse the direction of flow of power, they are being increasingly used in many applications such as battery charger/dischargers, dc uninterruptible power supplies, electrical vehicle motor drives, aerospace power systems, telecom power supplies, etc. This paper proposes a new...
An improved voltage disturbance generator is proposed. To test the performance of the custom power devices such as DVR, SSTS, dynamic UPS, etc., a voltage disturbance generator is necessary. The proposed generator has good features of high reliability, low cost, simple structure, high efficiency, and reduced voltage drop. The main switching device is SCR thyristor, and all the thyristors have natural...
This paper proposes a simple unity power factor zero-voltage-transition (ZVT) pulse-width-modulated (PWM) single-phase rectifier, which features reduced switching and conduction losses. The switching loss reduction is achieved by a simple auxiliary commutation circuit, and the conduction loss reduction is achieved by employing a single-stage converter, rather than a typical double-stage converter...
A new control method for the precision robust speed control of a Permanent Magnet Synchronous Machine (PMSM) using the load torque observer is presented. Using this system, we can obtain more reliable eye-moving signal (nystagmus). A precision speed control is obtained for the PMSM system approximately linearized using the field-orientation method. The inclined rotating chair system, which is called...
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