VHP800-C60 Series IGBT Power Module

Product Introduction

The IGBT power module adopts a two-stage scheme, with wide voltage and current range to deliver high efficiency, low interference and high precision. Power density is improved through water cooling so it is especially suitable for low-voltage and high-current occasions requiring adjustable output voltage and current, which provides safe, efficient and stable power supply for the green electricity hydrogen production. 

Product Feature

High-performance control strategy

The main control system of the power supply adopts 6-pulse uncontrolled rectification + interleaved three-phase DC-DC structure for high control accuracy; And the digital controller adopts ARM architecture for fast computing and processing.

• High control accuracy

PID, digital filtering, constant voltage and current control and fault protection algorithms together realize high performance digital control.

• Quick processing

Precise ARM chip allows operation speed up to 550MHz.

• Multiple applications

AC/DC+DC/DC topology is adopted for flexible power supply. And PWM technology lowers grid current harmonic down to 3% to minimize its pollution.

High-performance control algorithms

The voltage loop uses a feedback notch algorithm to filter out the industrial frequency ripple interference due to uncontrolled rectifier to reduce the output ripple.
The current loop adopts a unique bus voltage feedforward algorithm and PR control algorithm to provide high performance output ripple and control accuracy metrics as low as 1% (peak peak), the control accuracy can reach ±0.5%.

Soft-start adjustment in the full load section

The control loop is integrated with the voltage or current online soft-start setting function, so that rising or descending slope can freely adapt to start-up and given parameters of models with different power, providing more stable running performance.
In voltage loop operation mode, the current limit is switched from 200A to 100A (The software sets the slope to 2A/ms.).

High power density

Integrated water cooling design delivers excellent heat dissipation performance in the small and delicate body which is 20%~40% smaller than market products.

High-efficiency topology

The three-phase interleaved parallel BUCK topology is used on the DC side for higher efficiency, smaller ripple current so that output current ripple is lower than 1%, and the overall efficiency is up to 94%-96%, which makes the electrolyzer and the whole system run more smoothly.

Quick Response

The voltage and current closed-loop control technology can still ensure the stability of hydrogen production from the electrolyzer in the case of frequent fluctuation or abrupt load change. The power adjustment response speed stays within 300ms, which can respond to photovoltaic and wind instantly with rapid power switching.

Naming Rules

Installation Dimensions

VHP800 Series Hydrogen Production Power Supply Solution