Resonant inverter topologies for three concentric planar windings applied to domestic induction heating

Dzung

IEEE Trans. on Ind. Applicat.

et al. 2015

This paper describes a new method for the on-line parameter estimation of an induction heating system. Simulations and experiments are presented in order to measure its impedance matrix for more exact control in closed loop. In previous papers, various parameter identification methods including off-line methods were introduced and compared for current inverters. It has been demonstrated that parameter identification is necessary to achieve good control of the inductor currents. A "pseudo-energy" method for a simple and fast implementation is compared to a classical "V/I with phase shift" method. They are experienced on a reduced power 3-phase coupled resonant system supplied with voltage inverters with satisfying results.

Section: Introductionmentioning

confidence: 99%

“…The power converter configurations can be half-bridge, fullbridge, the single switch or multi-level converter [3]. Numerous applications can be found for domestic appliances in [1] [3][4] for many years. The resonant circuit consists of resistor, inductor and capacitor.…”

Section: Introductionmentioning

confidence: 99%

Parameter Identification Method for a Three-Phase Induction Heating System

Dzung

IEEE Trans. on Ind. Applicat.

et al. 2015

Section: Introductionmentioning

confidence: 99%

Parameter identification method for a 3-phase induction heating system

Dzung

2014 IEEE Industry Application Society Annual Meeting

et al. 2014

This paper describes a new method for the on-line parameter estimation of an induction heating system. Simulations and experiments are presented in order to measure its impedance matrix for more exact control in closed loop. In previous papers, various parameter identification methods including off-line methods were introduced and compared for current inverters. It has been demonstrated that parameter identification is necessary to achieve good control of the inductor currents. A new "pseudo-energy" method is experimented in comparison with a classical "V/I with phase shift" method on a reduced power 3-phase coupled resonant system supplied with voltage inverters.

“…Nowadays, induction cookers have flexible heating areas. The flexible heating areas consist of multiple concentric coils [2,3] or multiple coils [4].…”

mentioning

confidence: 99%

“…This topology is used to supply one induction coil. Multiple-output topologies based on the SRHB inverter are used for two inductor coils, multiple concentric coils [2] and multiple coils. One of these multiple-output topologies is the double SRHB (DSRHB) inverter [5].…”

mentioning

confidence: 99%

Upgrading of double series‐resonant half‐bridge inverter to improve efficiency

Millán¹,

Palacios

Burdío³

et al. 2013

Electron. lett.

Self Cite

Domestic induction cookers can have several heating areas, hence multiple-output topologies are commonly used. One of these multipleoutput topologies is the double series-resonant half-bridge inverter. An upgrading of this topology is proposed. This upgrading consists of adding a relay to allow connecting the capacitor tanks in parallel. The aim of this upgrading is to increase the efficiency through the reduction of the device currents. The proposed upgrading topology has been tested by means of a prototype.Introduction: In short, a domestic induction cooker is a resonant inverter which supplies a variable-frequency current to an induction coil. This current produces an alternating magnetic field, heating up the pan. Traditionally, the diameter of the inductor coil defines the heating area [1]. Nowadays, induction cookers have flexible heating areas. The flexible heating areas consist of multiple concentric coils [2, 3] or multiple coils [4].One of the most common topologies used in domestic induction heating is the series-resonant half-bridge (SRHB) inverter [1]. This topology is used to supply one induction coil. Multiple-output topologies based on the SRHB inverter are used for two inductor coils, multiple concentric coils [2] and multiple coils. One of these multiple-output topologies is the double SRHB (DSRHB) inverter [5]. This topology consists of two SRHB inverters and two relays (RE1 and RE2) (Fig. 1). The relays RE1 and RE2 allow connecting the two half-bridge inverters to feed only one induction coil in parallel. With this configuration, the maximum output power of each heating area is increased. This configuration is called booster and this maximum output power is called booster power.