Application of phase shift rectifier transformer in the field of high-voltage frequency converter
03-13 2025 | By:
Phase-shifting rectifier transformers are widely used in the field of high-voltage inverters, mainly due to their advantages such as high efficiency and energy saving, stability and reliability, low loss, low noise, strong overload capability and strong impact and short circuit resistance. These characteristics make phase-shifting rectifier transformers perform well in handling high voltage and high power occasions, such as urban rail transit, high-power electroplating and water-cooled high-voltage inverters.
In high-voltage inverters, the phase shift rectifier transformer minimizes the influence of input harmonics through the voltage phase transfer between the primary and secondary sides, and can achieve electrical isolation from the power grid, thereby improving the stability and safety of the entire power system. In addition, the phase-shift rectifier transformer can also improve the operating efficiency and reliability of equipment by adopting advanced electromagnetic design and new insulating structure, effectively reduce energy waste and reduce operating costs.
In terms of technology, high-voltage frequency conversion speed regulation technology is diversified, among which cascaded multiplexing technology is widely used. This technology superimposes multiple low-voltage modules (in series) through a rectifier transformer to form a high-voltage output. The power device uses IGBT, which can achieve perfect harmonic-free. Phase shift rectifier transformers play a key role in these technologies, providing the required voltage levels and waveforms for high-voltage inverters through their multi-phase rectifier power supply functions, while reducing system harmonics and increasing power factor.
To sum up, the application of phase shift rectifier transformers in the field of high-voltage inverters is mainly reflected in the following aspects:
High efficiency and energy saving: reduces energy waste by reducing input harmonics and improving equipment operation efficiency1.
Stable and reliable: It has strong overload capability and anti-impact and short circuit capability to ensure stable operation of the system.
Electrical isolation: realizes electrical isolation from the power grid and improves the safety and stability of the power system.
Technology diversity: adapts to different technical needs, such as cascading multiplexing technology and three-level topology.
These advantages make phase shift rectifier transformers play an important role in the field of high-voltage inverters, providing users with high-quality and high-performance solutions.
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