СИСТЕМИ ФАЗОВОГО АВТОПІДЛАШТУВАННЯ ЧАСТОТИ РЕЗОНАНСНИХ ІНВЕРТОРІВ УСТАНОВОК ІНДУКЦІЙНОГО НАГРІВАННЯ ЗА НИЗЬКОЇ ДОБРОТНОСТІ КОЛИВАЛЬНОГО КОНТУРУ
Phase-locked loop (PLL) systems in control circuits of resonant voltage inverters of high-frequency induction heating installations are used for getting the maximal active power in the load and minimal power losses in converter transistors under a wide range of load settings. In the paper, it is sho...
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| Datum: | 2019 |
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| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | Ukrainian |
| Veröffentlicht: |
Інститут електродинаміки Національної академії наук України
2019
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| Schlagworte: | |
| Online Zugang: | https://prc.ied.org.ua/index.php/proceedings/article/view/126 |
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| Назва журналу: | Proceedings of the Institute of Electrodynamics of the National Academy of Sciences of Ukraine |
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Proceedings of the Institute of Electrodynamics of the National Academy of Sciences of Ukraine| Zusammenfassung: | Phase-locked loop (PLL) systems in control circuits of resonant voltage inverters of high-frequency induction heating installations are used for getting the maximal active power in the load and minimal power losses in converter transistors under a wide range of load settings. In the paper, it is shown study results of the Q-factor influence of the voltage inverter’s load series resonant circuit of the induction heating installations on the accuracy of the PLL system. Under low values of the Q-factor, which is, for instance, equal 2, switching current may increase up to 30 % in comparison to that under high Q-factors; this, respectively, increases power losses under transistors switching. To provide optimal modes of their switching it is necessary to lower the transistor control pulse delay time depending on the Q-factor of the inverter load circuit. References 8, figures 7. |
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