Frequency converter

The all-in-one high-voltage inverter is a model launched by New Scenery. Compared with the split cabinet, it has the following characteristics: products with the same capacity, the volume is reduced by up to 37%, and the length of the whole machine is reduced by up to 37%, which can meet the user's small size installation requirements , To reduce capital construction costs; the whole machine integrates a manual/automatic switch cabinet, which can be transported as a whole, and there is no need to combine cabinets on site, and it can run with a motor for 15 minutes.

High voltage harmonic filter is used for 3 times, 5 times, 7 times, 11 times, 13 times and more harmonic passive filter devices in high voltage power network.It is suitable for medium frequency furnace, electric arc furnace, rolling mill, rectifier equipment and other places where harmonic generation is large.

High voltage harmonic filter is used for 3 times, 5 times, 7 times, 11 times, 13 times and more harmonic passive filter devices in high voltage power network.It is suitable for medium frequency furnace, electric arc furnace, rolling mill, rectifier equipment and other places where harmonic generation is large.Filter USES the filter reactor and a filter capacitor series resonance absorption circuit, effective harmonic would be absorbed, so as to avoid the harmonic current to return to power transformer into the power grid, reduce the harmonic content of the grid, is advantageous to the user at the same time the operation of the power transformer, reducing power consumption, improve the reliability of equipment and other electrical components.In addition, the device also provides a certain capacity of reactive power compensation to improve the operation efficiency of user load.Each unit is designed to meet customer requirements and ensure harmonic filtering performance and reactive power compensation, improve the efficiency of user load, and achieve effective return on investment.

FG2100 series inverter is a general purpose, high performance current vector inverter developed by our company.It is mainly used to control and adjust the speed of three-phase AC induction motor.On the basis of the original FG2000 series, high performance vector control, low speed and high torque output technology, with good dynamic characteristics, super overload capacity, communication bus function, support a variety of function expansion board, etc., rich and powerful combined functions, stable performance.Can be used in textile, paper, wire drawing, machine tools, packaging, food, fan, water pump and a variety of automatic production equipment drive.It provides highly integrated solutions for equipment manufacturing and end customers, which is of great help to reduce system procurement and operation costs and improve system reliability.Inverter products have passed the CE certification.

Pumping unit frequency converter is a series of high performance and simple frequency converters independently developed by Xinfeng Optoelectronic Technology Co., Ltd.On the premise of improving stability, it adds a series of practical advanced operation and control functions, such as PID regulation, phase-loss protection, light-load oscillation suppression, flexible input and output terminals, on-line parameter modification, power outage and shutdown parameter storage, RS485 control, etc.It provides integrated solutions with high degree for equipment manufacturing and end customers, which is of great help to reduce system procurement and operation costs and improve system reliability.

The high-voltage permanent magnet synchronous motor inverter, with high-speed DSP as the control core, adopts space voltage vector control technology, power unit series multi-level technology, and is designed with high reliability, easy operation, and high performance to meet various load adjustments of users. It is a high-high voltage source inverter for the needs of rapid energy saving and improved production technology. Accurate and efficient control of high-voltage permanent magnet synchronous motors.

The new wind water-cooled high-power high-voltage inverter adopts high reliability design as the design principle, adopts water-cooled heat dissipation, and has the characteristics of low noise, high efficiency, and stronger environmental adaptability.

The high-voltage four-quadrant (hoist) inverter adopts advanced vector control technology. At the same time, vector control without rotary encoder can be used according to the site conditions. The main difference between vector control and traditional V/F control is that vector control can The reactive current is distinguished from the active current (torque current). During the lifting process, the active current can be automatically adjusted according to the change of the load to make the output torque reach a better working condition, and the output torque can be 2.5 times of the rated torque.

FGSVG series high-pressure dynamic reactive power compensation device, with the chip DSP + FPGA as the core, using instantaneous reactive power theory control technology, FFT fast harmonic calculation technology, the high power IGBT drive technology, with high reliability, easy operation, high performance design goals, able to quickly continuously provide capacitive and inductive reactive power, constant testing point assessment of reactive power, constant voltage and constant power factor assessment point, as well as the comprehensive compensation and so on many kinds of control mode.FGSVG series of high voltage dynamic reactive power compensation devices can not only automatically compensate reactive power, but also dynamically compensate harmonics at the same time to ensure the stable operation of the power system.

In distribution power grid, the access of new energy, large capacity of power electronic devices such as the wide application of nonlinear load and impact load, has brought the serious power quality problems, use FGSVG high-pressure dynamic reactive power compensation device, can significantly improve the load and the public power grid connection point of power quality, such as improving power factor, to overcome the three-phase imbalance, eliminate voltage flicker, voltage fluctuation, to suppress the harmonic pollution and so on.FGSVG high-voltage dynamic reactive power compensation device was listed as a major technology industrialization project by the National Development and Reform Commission in 2013.In 2014, it won the "Power Quality Brand" award of Cer Media;In 2015, the 35kV direct-hanging FGSVG device was listed as the industrialization demonstration project of Torch Program by the Ministry of Science and Technology, and was funded by the Technology Innovation Fund for Small and MediumEnterprises of the Ministry of Science and Technology.

JD-BP37/38 series of high-voltage variable frequency speed regulation system, with high-speed DSP as the control core, adopts space vector technology, power unit series multi-level technology and other advanced control technologies, with high reliability, easy operation, high performance, small size The volume is the design goal to meet the needs of users for various load speed regulation, energy saving, and production process improvement. It is a high-high voltage source inverter. Its harmonic index is much smaller than the national standard of IEE519-2014, the input power factor is high, and the output waveform quality is good. It is unnecessary to use input harmonic filter, power factor compensation device and output filter; there is no additional heating and motor caused by harmonics. Torque pulsation, noise, common mode voltage and other issues can be applied to two/four quadrant synchronous motors (including permanent magnet synchronous motors) and asynchronous motors.