Unidirectional Voltage Type Inner High Frequency Loop Inverter
Author: Source: Datetime: 2016-09-30 16:30:08
Bidirectional Voltage Type High Frequency Ring Inverter
A bidirectional voltage type inner high frequency loop inverter is a circuit structure of a bidirectional voltage type inner high frequency loop inverter based on a forward converter, and is composed of a high frequency inverter, a high frequency transformer, a cycloconverter and an input and output filter, Bi-directional power flow, two-stage power conversion, conversion efficiency and high reliability. However, this inverter has the inherent drawback that the control of the output voltage of the cycloconverter to use the traditional PWM technology caused by the inevitable voltage overshoot.
Current - type high - frequency bad in the reverse device
Current type high frequency loop inverter circuit structure based on Flyback converter and single circuit single direction, single pipe bidirectional and Jinqiao bidirectional three kinds of main circuits. This inverter consists of high-frequency inverter, high-frequency (energy storage) transformer, cycloconverter and input and output filters. Its characteristics are simple circuit, two-stage power conversion, high efficiency, reliability, switching current stress, small capacity. On this basis, it was proposed and analyzed the push-pull bi-directional current-type high-frequency loop inverter.Solar powered portable generator use high frequency loop inverter has many advantage.
DC converter type high frequency loop inverter
From another point of view was put forward DC converter type high-frequency ring inverter in the new concept. It consists of high-frequency inverter, high-frequency (energy storage) transformers, high-frequency rectifier, frequency inverter bridge and input and output filter. The output of the front DC converter is half-wave voltage and the load is heavy. The rear inverter works in the frequency square wave inverter and has no output filter. The load is light and the inverter bridge power has low switching frequency and voltage stress. If the pre-DC / DC converter stage is Buck-Boost type, the shell is a voltage-type inner high-frequency loop inverter. If the pre-DC / DC converter is Buck-Boost, it belongs to the current type high frequency loop inverter. Regardless of the type of pre-DC / DC converter, these inverters are voltage-type in-loop high-frequency inverter, and the former level of light work load, heavy work load, control is not the same.In summary, if the future purchase of portable solar power generator, select the high-frequency inverter.
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