Abstract
The paper presents alternative circuits for voltage-current converters to be used in the calibrator of fictitious power. The experimental studies have revealed a number of problems related to the stability of the system in deep feedback and zero level stabilization of the amplifier. The circuit solutions given in the article allow elimination of these problems and improve the accuracy of calibrator current calibration. For example, correction/corrective circuits are used to ensure the stability of the converter at deep depths of the feedback, and operational amplifier based circuit solution and compensation condition are proposed to reduce the additional phase shift. To improve the accuracy of the calibration current values specified by the calibrator we propose to connect the feedback circuit to the measuring current transformer. However, further improvement of the accuracy class of the power calibrator is impossible without modern electronic components.
| Original language | English |
|---|---|
| Article number | 012053 |
| Journal | Journal of Physics: Conference Series |
| Volume | 671 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 18 Jan 2016 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Investigation converter circuit 〈voltage-current〉 for power calibrator. / Fomichev, Yu M.; Silushkin, S. V.; Larioshina, Irina Anatolievna.
In: Journal of Physics: Conference Series, Vol. 671, No. 1, 012053, 18.01.2016.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Investigation converter circuit 〈voltage-current〉 for power calibrator
AU - Fomichev, Yu M.
AU - Silushkin, S. V.
AU - Larioshina, Irina Anatolievna
PY - 2016/1/18
Y1 - 2016/1/18
N2 - The paper presents alternative circuits for voltage-current converters to be used in the calibrator of fictitious power. The experimental studies have revealed a number of problems related to the stability of the system in deep feedback and zero level stabilization of the amplifier. The circuit solutions given in the article allow elimination of these problems and improve the accuracy of calibrator current calibration. For example, correction/corrective circuits are used to ensure the stability of the converter at deep depths of the feedback, and operational amplifier based circuit solution and compensation condition are proposed to reduce the additional phase shift. To improve the accuracy of the calibration current values specified by the calibrator we propose to connect the feedback circuit to the measuring current transformer. However, further improvement of the accuracy class of the power calibrator is impossible without modern electronic components.
AB - The paper presents alternative circuits for voltage-current converters to be used in the calibrator of fictitious power. The experimental studies have revealed a number of problems related to the stability of the system in deep feedback and zero level stabilization of the amplifier. The circuit solutions given in the article allow elimination of these problems and improve the accuracy of calibrator current calibration. For example, correction/corrective circuits are used to ensure the stability of the converter at deep depths of the feedback, and operational amplifier based circuit solution and compensation condition are proposed to reduce the additional phase shift. To improve the accuracy of the calibration current values specified by the calibrator we propose to connect the feedback circuit to the measuring current transformer. However, further improvement of the accuracy class of the power calibrator is impossible without modern electronic components.
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U2 - 10.1088/1742-6596/671/1/012053
DO - 10.1088/1742-6596/671/1/012053
M3 - Article
VL - 671
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 012053
ER -