A study of end turn inductance calculation of BLDC motors
This paper presents the different calculating methods of stator end turn leakage inductance at brushless dc motors (BLDC) with different winding types. The calculations are carried both analytically and numerically. The results of the two dimensional (2D) calculations have been compared with the results of three dimensional (3D) ones for the same motor. Finite Element Method (FEM) is used for 2D and 3D numerical analysis.
Takagi-Sugeno fuzzy control solutions for BLDC drives
The paper presents Takagi-Sugeno fuzzy control solutions - PI(D) fuzzy controllers with input and output integration and 2-DOF fuzzy controllers - meant for speed and position control of Brushless Direct Current (BLDC) drives. Simplified models of BLDC drives are used in new controller design methodologies. These models are characterized by second-order linear dynamics with/without an integral component and generally with variable parameters and allow. The Takagi-Sugeno fuzzy control solutions are briefly characterized and some approaches regarding the controller designs are highlighted pointing out the simplicity of our solutions. Comparative studies based on digital simulation results are included to exemplify the efficiency of the proposed design methodologies.
International EMS systems: New South Wales, Australia.
Australia has an area of 7,692,024 km 2 and a population of 19,169,083. The state of New South Wales (NSW) has an area of 801,428 square kilometres and a population of 6,663,700 (June 2002). It contributes 10% of the land area of Australia and 34% of the population. The length of the coastline is 2007 km with an east-west distance of 1450 km (Fig. 1). Approximately 90% of the NSW population resides within 100 km of the coast. The population density is greatest in the Greater Metropolitan Region around Sydney, an area of 1580 square km, population of 4,154,722. Only 0.6% live in regions classified as remote or very remote (based upon distance to regional townships). The climate is generally mild, although temperature extremes range from � /20 8C (Charlotte’s Pass) to 50 8C (far Western NSW). The highest point is 2228 m at Mt. Kosciuszko. However, most of NSW is below 500 m in altitude.