Novel method for equalizing voltage of series transformers, and application thereof

Abstract

The invention relates to a novel method for equalizing voltage of series transformers, and application thereof, which belongs to the field of high-power high voltage or ultrahigh voltage. The method is applied to accelerating-level power sources of high-power radar transmitters, accelerators, CT, high-energy gas ion sources and high-energy metal ion sources. The method is characterized in that one more secondary winding is left on every transformer when switch transformers are designed; primary poles of the switch transformers are connected in series for power supply; a plurality of secondary windings of the transformers are segmented and rectified and then connect output in series so as to reach the needed output voltage of a power source; the reserved secondary windings of every transformer are connected in parallel so as to reach the effect of equalizing the voltage of a rectifier; and the voltage-equalizing windings need to be realized through high voltage insulation. The method has the advantage of solving the problem of equalizing voltage when the primary poles of the transformers are connected in series, along with simplicity, reliability and capability of applying to switch power sources at various types of power and voltage level. The appearance of the technique has great significance for improving the performances of radar transmitters and radar complete appliances.

Description

technical field [0001] The invention relates to a novel series transformer voltage equalization method and its application, which belongs to the field of high-power high-voltage and ultra-high voltage, and is applied to acceleration-level power supplies of high-power radar transmitters, accelerators, CTs, high-energy gas ion sources and high-energy metal ion sources. Background technique [0002] With the continuous improvement of power supply voltage and power, the design difficulty of switching transformers and rectifiers is also increasing. High-power radar transmitters require high-voltage power supplies with an output power of tens to hundreds of kilowatts and an output voltage of 20-100kV. It is very difficult to use a single transformer to transform the voltage. At present, the high-voltage switching power supply generally uses a power inverter to drive multiple switching transformers. The switching transformers adopt a structure of primary parallel or series secondary...

AI Technical Summary

Problems solved by technology

When the switching transformer adopts the structure of the primary series and the secondary series, the rectifier has the problem of uneven voltage

This will cause the input voltage of several of the rectifiers to be higher than the rated working voltage, which will break down the rectifiers and cause the entire power supply to fail, seriously affecting the reliability of the power supply

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