2011年9月29日星期四

Topological design of new electromagnetic body

Title: Topological design of new electromagnetic body and optimization of Author: Jie Lou Degree-granting units: Shandong University Keywords: electromagnetic institutions;; topology design;; rapidity;; controllability;; sensitivity coefficient Abstract: Support the development of smart grid is one of the important technical foundation of intelligent high-voltage electrical appliances, including the implementation of intelligent operation circuit breakers,
The rapid nature of the electromagnetic Magnetic lifter body and controllability put a higher demand, which depends on the topology design of new electromagnetic institutions and Parameter Optimization
. In terms of the current research status, can be integrated quickly and controllability two levels, the topology of the magnetic body design and optimization analysis
Research methods to make the system work are rare. In this paper, the topology of the electromagnetic body to start to study the topology of four new institutions form of electromagnetic
Type, proposed a more systematic analysis of the topology design and optimization methods, the development of institutions for the new electromagnetic theory and technology laid the foundation.
The first type of fast electromagnetic repulsion for discoid body of theoretical analysis, based on the interaction between a single-turn coil of the electromagnetic derived relationship
Body dynamic analysis model and propose a time-based and displacement double-loop discrete iterative algorithm that can be used for repulsion-type disk
Institutions like the simulation of electromagnetic analysis and synthesis optimization. But to achieve real-time control of the body, these mathematical models and algorithms also
Appear to be relatively complex. View of the rotary motor control already has a more mature approach, this paper presents the fault-based permanent magnet motor control
Breaker actuator solutions. By analyzing the http://www.999magnet.com/products/131-magnetic-lifter rotation and linear motion conversion relations, and integrated with the single neuron PID control method,
Motion characteristics of the institution to establish the speed tracking control strategy for the realization of institutional control provides a method of flexible basis. However, due to electric
Machine's electromagnetic inertia and the mechanical transmission part of a larger inertia is not conducive to achieving the body fast. To combine the above
The advantages of two electromagnetic bodies, this paper presents a balance between speed of movement and control of the electromagnetic body - fast electromagnetic voice coil motor type
Institutions. Due to the relative permeability allows a small permanent magnet circuit inductance significantly reduced, while the use of symmetric differential compensation structure may ensure
Hold the equivalent inductance during exercise is essentially the same, which simplifies the organization of the analysis model. Based on analysis of electromagnetic and mechanical dynamics, using
Controlled voltage source equivalent to describe the body in the form of electromagnetic coupling with the mechanical properties of the complex relationship between the institutions to address the decoupling of electromagnetic analysis and
Control provides a new idea. PSIM software is built using the PWM based speed tracking control simulation model, simulation results show that
The use of power electronic devices and PWM control can be achieved organizations represent the basic operation of the collision-free closing rally, the best campaign song for the circuit breaker
Line tracking control method of laying the foundation. However, because there are core, permanent magnets and other large susceptible to external magnetic fields affect the performance of the material, by
Increase the agency's non-linear characteristics, the control accuracy is difficult to guarantee in a larger current. To overcome the use of non-linear organization
Magnetic material weaknesses, and taking into account the controllability of the organization topology design requirements, this paper studies nested around an anti-solenoid-type
New electromagnetic body. The fixed parts of the body and moving parts are the coil form, no core nor permanent. By analyzing the magnetic field coil
Transverse component of the distribution of the proposed concept to describe the interaction coefficient of the coupled model agency. In the case of determining the topology,
The role of the coefficient is a constant, the electromagnetic force that is proportional to the square with the current, which greatly simplifies the mathematical analysis of model agencies, agencies for the realization of
Controllable basis. Developed a physical prototype of the magnetic body, and carried out simulation and experimental study. Due to topology and
Limit the diversity of analytical methods, the traditional performance evaluation of the electromagnetic body to use more static evaluation, the lack of dynamic characteristics for the organization
Evaluation parameters. In this paper, electromagnetic equation, by analyzing the electromagnetic force and the relationship between control current and proposed sensitivity analysis of the electromagnetic force
Factor to quantitatively assess the current impact of the changes in electromagnetic force and electromagnetic kinematic controllability of the process. From the use of materials, topology
Structure and the electromagnetic force sensitivity, the magnetic bodies of the three dynamic performance were compared, that have greater value and is constant
Sensitivity coefficient of the electromagnetic body topology, in terms of speed and control with the development prospects. The article also detailed study of the repulsion type of discoid
Institutions around the nest and anti-electromagnetic solenoid type electromagnetic body interaction, that the topological relations between the two is a single-turn coil, respectively, along the path
And axial expansion of the formation of spatial structure, the former is about the maximum sensitivity coefficient is twice the latter, which is the topology of the electromagnetic body
Provides new methods and theoretical basis. Degree Year: 2009

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