Analysis and design of high-efficiency resonant inverters for domestic induction heating applications

2014 ◽  
Vol 44 (2) ◽  
pp. 201-208 ◽  
Author(s):  
H. Sarnago ◽  
O. Lucía ◽  
A. Mediano ◽  
J. M. Burdío
Keyword(s):  
Induction Heating ◽  
High Efficiency ◽  
Analysis And Design

The Analysis and Design of Electric Cooker

2014 ◽  
Vol 1052 ◽  
pp. 543-546
Author(s):  
Hong Yan Jin ◽  
Zhi Wei Zhu
Keyword(s):  
High Efficiency ◽  
Analysis And Design ◽  
New Material ◽  
User Friendly

Electric rice cooker is now almost each family essential kitchen supplies, so using the combination of the traditional materials with modern new material in the material, which is more safe and reliable, high efficiency; in view of novel, unique, broke dull and monotonous traditional electric rice cooker, can meet the needs of different groups; in the structure is also improved the humanized design, two gap next to the inside of the aluminum easier extraction. This design in a safe, practical, personalized, user-friendly products experience.

Analysis and design of a microstrip patch antenna for harmonic tuning in a high-efficiency integrated microwave transmitter

2007 ◽  
Author(s):  
Paolo Baccarelli ◽  
Paolo Burghignoli ◽  
Fabrizio Frezza ◽  
Alessandro Galli ◽  
Paolo Lampariello ◽  
...  
Keyword(s):  
Patch Antenna ◽  
High Efficiency ◽  
Microstrip Patch Antenna ◽  
Analysis And Design ◽  
Microstrip Patch

Permanent Magnet Heater for Special Applications

2015 ◽  
Vol 792 ◽  
pp. 476-481
Author(s):  
Michele Forzan ◽  
Fabrizio Dughiero
Keyword(s):  
Magnetic Field ◽  
Rare Earth ◽  
Induction Heating ◽  
Permanent Magnets ◽  
Lower Cost ◽  
High Efficiency ◽  
Mechanical Design ◽  
Fixed Position ◽  
Dc Magnetic Field ◽  
Research Activities

This paper presents a review of the research activities carried out at the Laboratory for Electroheat of Padova University (LEP) in the field of high efficiency through heating of aluminum workpieces. Induction heating obtained by rotating a billet in a DC magnetic field produced by superconductive coils was the first attempt to reach high electrical efficiency in mass heating of high conductive metals, like aluminum, copper and brass. More recently, the same concept has been applied by rotating rare earth permanent magnets around a metal billet kept in a fixed position. This technology appears much more promising because of lower cost of installation and a more robust mechanical design.

Synthesis of powder metallurgy Ti-3Fe-2Al alloy using high-frequency induction heating

2019 ◽  
Vol 34 (01n03) ◽  
pp. 2040031
Author(s):  
Stella Raynova ◽  
Khaled Alsharedah ◽  
Fei Yang ◽  
Leandro Bolzoni
Keyword(s):  
Mechanical Properties ◽  
Powder Metallurgy ◽  
Induction Heating ◽  
High Frequency ◽  
High Efficiency ◽  
High Vacuum ◽  
Residual Porosity ◽  
Effect Of Temperature ◽  
Vacuum Furnace ◽  
High Frequency Induction

A powder metallurgy approach was applied for the synthesis of an [Formula: see text] Ti-2Al-3Fe alloy. Blends of the elemental Ti, Al and Fe powders were compacted and subsequently sintered. High-frequency induction heating (HFIH) instead of conventional high-vacuum furnace heating was used for the sintering, due to its high efficiency. The effect of temperature on the level of densification, residual porosity and mechanical properties was studied. Electron dispersive spectrum analysis was used to study the dissolution and homogenization of the alloying elements. The results showed that a short induction sintering (IS) cycle in the range of 10–15 min is sufficient to achieve significant powder consolidation, evident by the increase of the density and mechanical properties. The residual porosity diminishes with the increase of the sintering temperature. Full dissolution of the alloying powders is completed after sintering at temperatures above those of [Formula: see text]- to [Formula: see text]-phase transformation.

scholarly journals Topology optimization of induction heating model using sequential linear programming based on move limit with adaptive relaxation

Open Physics ◽  
2017 ◽  
Vol 15 (1) ◽  
pp. 845-850 ◽  
Author(s):  
Hiroshi Masuda ◽  
Yutaro Kanda ◽  
Yoshifumi Okamoto ◽  
Kazuki Hirono ◽  
Reona Hoshino ◽  
...  
Keyword(s):  
Linear Programming ◽  
Topology Optimization ◽  
Induction Heating ◽  
High Efficiency ◽  
Magnetic Energy ◽  
Design Method ◽  
Point Of View ◽  
Sequential Linear Programming ◽  
Electrical Machinery ◽  
Heating Model

AbstractIt is very important to design electrical machineries with high efficiency from the point of view of saving energy. Therefore, topology optimization (TO) is occasionally used as a design method for improving the performance of electrical machinery under the reasonable constraints. Because TO can achieve a design with much higher degree of freedom in terms of structure, there is a possibility for deriving the novel structure which would be quite different from the conventional structure. In this paper, topology optimization using sequential linear programming using move limit based on adaptive relaxation is applied to two models. The magnetic shielding, in which there are many local minima, is firstly employed as firstly benchmarking for the performance evaluation among several mathematical programming methods. Secondly, induction heating model is defined in 2-D axisymmetric field. In this model, the magnetic energy stored in the magnetic body is maximized under the constraint on the volume of magnetic body. Furthermore, the influence of the location of the design domain on the solutions is investigated.

HIGH-GAIN/EFFICIENCY MULTISTAGE SWITCHED-CAPACITOR-VOLTAGE-MULTIPLIER DC–DC CONVERTER

2012 ◽  
Vol 21 (03) ◽  
pp. 1250023
Author(s):  
YUEN-HAW CHANG
Keyword(s):  
Power Efficiency ◽  
Closed Loop ◽  
Pulse Width Modulation ◽  
High Efficiency ◽  
Conversion Ratio ◽  
Switched Capacitor ◽  
Two Phase ◽  
Analysis And Design ◽  
Voltage Multiplier ◽  
Capacitor Voltage

A closed-loop interleaved multistage switched-capacitor-voltage-multiplier (mc × nc-stage SCVM) dc–dc converter is proposed by combining a variable-conversion-ratio (VCR) and pulse-width-modulation (PWM) control for low-power step-up conversion and high-efficiency regulation. In this SCVM, the power part is composed of two mc-stage SC cells (front) and two nc-stage SC cells (rear) in cascade, and these cells are operated by two-phase nonoverlapping clocks for an interleaved operation with voltage gain of mc × nc at most. This paper presents the VCR control to change the running stage number m,n and topological path for a more flexible and suitable gain level m × n (1 × 1, 2 × 1, 2 × 2, 3 × 1, 3 × 2, 3 × 3,…, mc × nc) according to the desired output so as to improve power efficiency, especially for the lower output. Besides, PWM is adopted not only to enhance output regulation for different outputs, but also to reinforce output robustness to source/loading variation. Further, some theoretical analysis and design include: SCVM model, steady-state analysis, conversion ratio, power efficiency, output ripple, stability, capacitance selection, and control design. Finally, the closed-loop SCVM is simulated, and the hardware is implemented and tested. All the results are illustrated to show the efficacy of the proposed scheme.

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