Developing the Micro-Flux Control Method Part 1: System Development, Field Test Preparation and Results.

2005 ◽  
Author(s):  
Helio Mauricio Santos ◽  
Paul Ian Reid ◽  
Julian Leigh Jones ◽  
John McCaskill
Keyword(s):  
Field Test ◽  
Control Method ◽  
System Development ◽  
Test Preparation ◽  
Flux Control

FIELD TEST OF AN AUTOCIDAL CONTROL METHOD WITH THE FERAL MOSQUITO CULEX RESTUANS (DIPTERA: CULICIDAE)

1975 ◽  
Vol 107 (5) ◽  
pp. 465-470
Author(s):  
G. K. Bracken ◽  
M. G. Maw
Keyword(s):  
Field Test ◽  
Control Method ◽  
Test Area ◽  
Small Scale ◽  
Hypothetical Model ◽  
Culex Restuans ◽  
Chemical Sterilization ◽  
Autocidal Control ◽  
Gravid Females ◽  
Oviposition Sites

AbstractAn autocidal control method involving attraction of ovipositing females to artificial oviposition sites, rearing and chemical sterilization of adults reared from the collected eggs, and release of sterilized males back into the system was field tested with the mosquito Culex restuans Theobald. This species cannot be cultured continuously. The average weekly percentage of sterile egg rafts was 2.4 (range 0.3–16.0) in the test area where sterile males were released (av. 9620/wk) and 5.3 (range 1.5–30.0) in the area where both sterile males (av. 7000/wk) and untreated females (av. 4590/wk) were released. The low level of sterility achieved is attributed to infiltration of gravid females from outside the experimental areas, poor efficiency in producing sterile males from the collected egg rafts, and the small scale of the test.A hypothetical model is used to compare theoretical reduction in rates of increase of a population of mosquitoes when various proportions are induced to oviposit in ‘trap’ pools if the eggs trapped are destroyed, reared to produce sterile males for release, or reared to produce sterile males for release in conjunction with larvicidal treatment of uncontrolled breeding areas.

scholarly journals Direct flux control – sensorless control method of PMSM for all speeds – basics and constraints

2017 ◽  
Vol 53 (16) ◽  
pp. 1110-1111 ◽  
Author(s):  
T. Müller ◽  
C. See ◽  
A. Ghani ◽  
A. Bati ◽  
P. Thiemann
Keyword(s):  
Control Method ◽  
Sensorless Control ◽  
Flux Control ◽  
All Speeds

scholarly journals Fast Flux and Torque Control of a Double Inverter-Fed Wound Machine Considering All Coupling Interferences

Electronics ◽  
2021 ◽  
Vol 10 (15) ◽  
pp. 1845
Author(s):  
Yongsu Han
Keyword(s):  
Control Method ◽  
Controller Design ◽  
Design Method ◽  
Current Control ◽  
Torque Control ◽  
Flux Control ◽  
Efficient Operation ◽  
Decoupling Method ◽  
Current Controller ◽  
Fast Flux

For efficient operation of the squirrel cage induction motor, the flux must be properly adjusted according to the torque. However, in such variable flux operation, the performance of torque control is limited by the flux control because it is not possible to measure and control the rotor current that affects the flux. On the contrary, in a double inverter-fed wound machine (DIFWM), the inverter is connected to the rotor side, as well as the stator side, and the rotor current can be controlled. This controllability of the rotor currents improves the operation performance of a DIFWM. This article presents the decoupling current control method of a DIFWM for fast flux and torque control. Since the rotor flux is directly calculated by the stator and rotor currents, the bandwidth of the flux control can be improved to the bandwidth of the current controller, which means that the torque control also has the same bandwidth. In this article, a detailed current controller design method with a DIFWM feed-forwarding decoupling method to eliminate all coupling interferences is proposed. The simulation and experimental results regarding the DIFWM are presented to verify the torque and flux control performance of the proposed control method.

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