Three control working modes of constant current high voltage DC power supply
There are currently three control modes for constant current high-voltage direct current power supplies: the first is the most primitive manual control mode, where all startup operation programs are in the form of buttons on the control cabinet panel, and the operating current of the electrostatic precipitator is controlled by the operator based on the switch of the current selection key; The second method is to adopt an automatic control working mode combining LCD display screen, touch switch and microcontroller, and can also enter the central DCS system for central control; The third method is to use a combination of touch screen and PLC for automatic control.
HVCC-1 type: manual control mode
This control method is the original working mode of constant current high voltage direct current power supply. The basic working mode is that all operation switches are in the form of buttons, and the current adjustment is manually increased or decreased according to the needs of the current selection key to achieve the desired current size. This working method is currently widely used in places with low automation requirements and harsh working conditions, and the operation of this power supply is also relatively simple.
This model of power supply has the basic power supply characteristics of HVCC-1 constant current high voltage direct current power supply, namely constant current output and positive feedback working characteristics; At the same time, the control circuit adopts advanced microcontrollers and peripheral chips to achieve automated control. The RTU control working modes include:
1. Working mode of voltage setting value
2. Working mode of current setting value
3. Normal spark tracking working mode
4. Working mode of DCS centralized control current setting value
5. The working mode of DCS centralized control voltage setting value.
