The high frequency pulsed plasma power supply has excellent performance compared with the traditional thyristor-controlled power frequency power supply. It has many significant advantages for example, it has small output ripple, high average voltage and current, small size, light weight, integrated structure, high conversion efficiency and power factor, and uses three-phase balanced power supply which has small impact on the power grid. With these advantages the dust removal efficiency can be greatly improved. It is a revolutionary replacement product of the traditional thyristor power frequency power supply.
The high frequency pulsed plasma power supply independently developed by our company is the advanced high frequency pulsed power supply in China.It is widely used in air purification, electrostatic precipitator, desulfurization and denitrification, plasma application, gas phase deposition, vacuum electronics, microwave communication, laser pumping and other engineering and technical fields.
The high frequency pulsed plasma power supply developed by our company consists of two parts: one is the controller, which controls and monitors the smooth operation of the entire power supply, and the other is the high-voltage power supply, which is used for transformation ratio boost rectification and final output discharge.
Working principles:
Working waveform:
Product Features
● Saving 80% of electricity compared with traditional power supply
high frequency pulsed plasma power supply, saving 80% of electricity compared with conventional power supply. When the pulse is boosted, most of the electric energy is returned to the energy storage capacitor for the next pulse. It has a self-feedback system, which automatically raises or lowers the voltage according to the needs of discharge, and gives as much energy as needed, quantitative supply, and more power-saving than traditional constant power output.
● Three-phase power supply
①The power supply of the system is balanced, and the power factor is more than 93%;
②The power supply voltage ripple is small, the voltage average value is high, and the dust removal efficiency is high.
● High Frequency Pulse
①Using full-controlled high-power high-frequency power component (IGBT), which can output 80kHz high-frequency pulse current, the response speed of the system is rapidly improved, and the output voltage ripple is small, thereby greatly improving the dust removal efficiency.
②Under the condition of keeping the voltage ratio unchanged, the number of turns of the primary and secondary sides of the high-frequency transformer will be greatly reduced compared with that of the traditional power frequency transformer, and the volume of the transformer will be significantly reduced. The volume of the oil tank will also be significantly reduced.
③In the event of flashover, the high-frequency electrostatic precipitator power supply can respond quickly. The output voltage of the power supply decreases rapidly, and can be turned off directly and quickly. But the output current can still remain unchanged, which not only saves the energy consumed by the electrostatic precipitator, but also ensures the dust removal state will not be interrupted to ensure the ideal dust removal effect. Instant power-off protection when a short circuit occurs.
④The high-voltage power supply adopts a unique rectification method, which makes the potential gradient of the high-voltage rectifier more uniform, the voltage span between the packages is consistent, and there is no overvoltage breakdown, and the system has good working stability under high voltage.
● Constant current output characteristics
The high-frequency power supply adopts a series resonant converter with constant current output characteristics, which can effectively suppress the current impact of the electric field spark. The spark flashover response time is within 12.5μs, which can quickly extinguish the spark and quickly restore the electric field energy.
● Strong adaptability to working conditions
The control method is flexible, and with the characteristics of small output ripple and adjustable duty cycle when pure DC power supply. It can provide various voltage waveforms for the electrostatic precipitator, and provide the most suitable voltage waveform for various specific working conditions. It is energy saving and with high efficiency. It is the best solution for dust removal device.
● Greatly improve dust removal efficiency
The corona electrode produces a high-intensity, dense and short-lived corona current, which overcomes the back corona of the dust with high specific resistance and promotes the charging of the dust. The dust emission can be reduced by more than 30% under the condition of high specific resistance dust and flue gas.
● Perfect automatic power control function
Perfect automatic power control function, pulse power supply and host computer form an intelligent control system to realize remote monitoring and management.
● Modularization of functional components
The functional components are modular, which can optimize the combination of various shapes and parameters of the equipment to meet the needs of different occasions.
Technical Parameter
Power distribution method: three phase five wires (A, B, C, N, GND)
AC input voltage: three-phase 380V ± 10%
AC power supply frequency: 50Hz ± 2%
Output voltage adjustment: 1~90%
Output current adjustment: 1~90%
Output power adjustment: 1~90%
Output duty cycle adjustment: 1~90%
Output frequency: 80kHz
Output pulse wave:
●Current waveform: quasi-square wave
●Voltage waveform: quasi-square wave
Engineering application combination mode: series boost and parallel current
Working mode: allow continuous operation under rated current
Cooling method: The controller is forced air cooling/water cooling, and the high-voltage power supply is ONAN
Protection level: IP54 for indoor and IP65 for outdoor
Engineering application combination mode: series boost and parallel current
High-voltage power supply parameters:
●Output voltage: the rated output DC voltage (unit: KV) is generally 20, 30, 40, 50, 60, 72, 80,100
●Output current: Rated output current (unit: mA) is generally 100, 200, 300, 400,500,600
●Impedance voltage: 30%~40%
●Transformer oil: 25# oil, withstand voltage greater than 40KV/2.5mm
●Negative high voltage to ground: 0Ω in the positive direction, 52/65/78 MΩ in the reverse direction
The structure of high-voltage controller: adopts cold-formed steel structure, the surface is electrostatic sprayed, and the upper busbar inlet meet GGD standard
National special standards: This product implements the national special standards of "JB/T 9588-1999 High Voltage Electrostatic Precipitator Rectifier Equipment"
Applicable electrode distance (electrode distance is 5kV/cm or 0.2cm/kV):
● Voltage 30kV, electrode distance 6cm
● Voltage 72kV, electrode distance 14.4cm
