WZD22005-5 22010-5 high frequency power charging module
Product overview
The company specializes in the production of high-frequency switch modules and other professional power modules, as well as power-operated power supply monitoring systems, and provides the power supply components to various cooperative manufacturers and end users. The power operation power supply system is the power supply equipment in the application power room. Mainly used in substations (stations) at all levels and thermal power plants, hydropower plants, as the power supply to control load and power load and DC accident lighting load, it is the basis of power system control and protection. In the field of rail transit, it is mainly used to provide uninterrupted DC power supply for the opening and closing of circuit breakers in the power supply system and the instruments, meters, relay protection and accident lighting in the secondary circuit.
The intelligent high-frequency switching DC power supply system consists of AC input power distribution part, charging module rectification part, step-down part, DC output feeding part, monitoring part and insulation monitoring part.
System schematic diagram
Product Features
As an essential and important part of the power system, the power operating power supply charging module is designed to provide energy to power equipment safely, reliably, efficiently, stably and uninterruptedly; in addition, modern power operating power supplies must also have Intelligent distributed monitoring, unattended and automatic battery management functions, so as to meet the needs of modern management of power systems. The power-operated power supply charging module can not only well meet the needs of the market, but also provide customers with a truly economical, reliable and convenient system solution from the perspective of customers' practical application.
Its main features are embodied in:
■ High power density helps to save system space and increase system capacity.
■ High efficiency, using intelligent air cooling method, can well handle the temperature rise of module devices and improve reliability.
■ It has the function of smooth adjustment of output voltage and current.
■ The anti-backflow diode is integrated inside the module, which can realize hot swap, which is convenient for system adjustment and maintenance.
■ Software current sharing, without hardware settings, can support up to 0 modules to operate reliably and autonomously.
■ The charging module is intelligently controlled and provides a data communication interface.
■ Decentralized multi-level monitoring system to realize simple and reliable monitoring system.
The three-phase AC power is input to the rectifier circuit through the EMI filter, the AC is rectified into a pulsating DC output, and the pulsating DC is converted into a straight DC power supply through a passive power factor correction (PFC) circuit. The DC/DC converter generates PWM wave by DSP to control the power device, and then is isolated and output by high-frequency transformer and then rectified by high-frequency; LC filters and outputs the regulated DC voltage required by the EM circuit output system.
The whole charging module works under the monitoring of the microcomputer system, including module protection, voltage adjustment, etc. At the same time, the microcomputer realizes the reporting of the operation data of the charging module to the monitoring module and accepts the control commands of the monitoring module.
Panel Instructions
■LED display panel
It can display module voltage, current, alarm, address, group number, operation mode and other information. If the key is not operated for more than one minute, the voltage and current of the module will be automatically displayed. If there is an alarm at this time, the alarm information will be displayed. The voltage display accuracy is ±0.5V, and the current display accuracy is ±0.2A.
■Indicators
There are 3 indicators on the module panel, which are power indicator (green), protection indicator (yellow) and fault indicator (red). See the table below.
■Panel indicator light description
|
indicator light |
normal status |
abnormal state |
Abnormal |
|
φ (green) |
Bright |
extinguish |
There is no input voltage and the auxiliary power supply inside the module does not work |
|
(yellow) |
extinguish |
Bright |
AC input overvoltage and undervoltage: E33; |
|
extinguish |
flicker |
AC phase loss: E34; Over temperature: E32; | |
|
(Red) |
extinguish |
Bright |
Module output overvoltage: E31 |
|
extinguish |
flash |
Communication interruption: | |
|
Note: When the module is in manual mode, the yellow light flashe |
|||
Performance parameters of charging module
■Environmental requirements
|
project |
index |
|
Operating temperature |
-10℃-50℃ |
|
Storage temperature |
-25cC-55°C |
|
Relative humidity |
≤95% |
|
Atmospheric pressure |
70~106KPa |
|
cooling method |
Smart air cooling |
■Input characteristics
|
project |
index |
|
Input voltage |
323V~475V (three-phase three-wire system) |
|
Input Current |
≤10A |
|
AC input frequency |
45~65HZ |
|
effectiveness |
≥93% |
|
Power Factor |
≥0.94 |
■output characteristics
|
project |
index |
|
Output voltage range |
176V~285V or 88V-142V |
|
Rated output current |
10A or 20A |
|
Voltage rise time |
3~8 seconds (soft start time) |
|
Output constant current range |
10%~100% |
|
Steady flow accuracy |
≤±0.5% (20% current limit test) |
|
Load voltage ripple factor |
≤0.5% (RMS) ≤1% (peak value) |
|
Voltage regulation accuracy |
≤ ±0.5% |
|
Temperature coefficient (1/℃) |
≤0.2% |
|
Current unbalance |
≤ ±3% (30%~100% rated load) |
Introduction of high frequency charging module
The rated input of RT/F charging module is AC three-phase three-wire system, and the output is DC220V/10A (110V/20A), which is the most mainstream specification in the current power operation power supply market. The following will introduce the system:
Installation size of charging module
