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首页> 外文期刊>IEEE Transactions on Industry Applications >Feasible development of soft-switched SIT inverter with load-adaptive frequency-tracking control scheme for induction heating
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Feasible development of soft-switched SIT inverter with load-adaptive frequency-tracking control scheme for induction heating

机译：带有负载自适应频率跟踪控制方案的感应加热软开关SIT逆变器的可行开发

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摘要

This paper describes the latest feasible developments of a voltage-source-type series-capacitor-commutated load-resonant high-frequency bridge inverter using static induction transistors (SITs) for industrial induction-heating and melting applications. A load-adaptive variable-frequency tuned controller, composed of a phase-locked loop integrated circuit (PLLIC) device, a pulse amplitude modulation (PAM) power controller employing a phase-controlled AC/DC converter, and protective control schemes for overvoltage and/or overcurrent generation, is also demonstrated for this series resonant inverter. In addition to these, a short-circuit test of a high-power SIT incorporated into the bridge leg high-frequency series resonant inverter is carried out from a practical point of view and evaluated, in order to obtain important design data considering reliable switching characteristics of large-capacity SITs and to realize cost-effective protective circuits for SITs.
机译：本文介绍了使用静电感应晶体管（SIT）的电压源型串联电容器换向负载谐振高频桥式逆变器在工业感应加热和熔化应用中的最新可行发展。一种负载自适应变频控制器，由锁相环集成电路（PLLIC）器件，采用相控AC / DC转换器的脉冲幅度调制（PAM）功率控制器以及过压和过压保护保护方案组成此串联谐振逆变器还演示了/或过电流的产生。除此之外，还从实用的角度对内置于桥臂高频串联谐振逆变器中的大功率SIT进行了短路测试并进行了评估，以获取考虑可靠开关特性的重要设计数据。的大容量SIT，并实现具有成本效益的SIT保护电路。

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