Perfect combination of air compressor with frequency inverter (VSD) for energy saving

SHENZHEN, China - Sept. 28, 2013 - PRLog -- Solution of AC frequency converters (VSD) on air compressors for energy saving

V&T Technologies Co., Ltd. is professional in manufacturing best variable speed drive (frequency inverter), servo drive, motor soft starter and other power electronics products.

The variable speed drives (AC frequency inverters) are used for energy saving and process control, in plastic injection molding machine, machine tools, air compressor, water supply, municipal engineering, conveyor belt, sewage disposal (wastewater treatment), cooling water circulation pumps, extruder machines, plastic extrusion machinery, fan and pump, blower, exhaust fan, ventilator, central air conditioning, sugar industry, food and beverage industry, mining industry, dust blower in steel works.

As the leading factory, we are competing with Siemens, ABB, Yaskawa, Schneider in the market. The voltage is from 200VAC to 1140VAC, power from 0.4KW to 3MW.

We have rich experiences in applying frequency inverters (variable frequency drives) on air compressors for energy saving, have cooperated with many famous companies, such as Atlas Copco, Ingersoll Rand, Sullair and Kai Shan (which is No.1 air compressors factory in China).

Solution:

V5-H sensorless vector control (field-oriented control) and PID feedback closed loop control AC frequency converters (VSDs), + control device of air compressor

Advantages:

1.       vector control AC frequency inverter (variable speed drive), energy efficient, up to 50% energy saving rating

2.       closed loop constant pressure air supply, precision is up to ± 0.01MPa (± 0.1bar)(positive or minus)

3.       less maintenance cost of equipments, long lifetime, low noise

4.       automatic pressure control, automatic pattern control, continuous air supply

5.       start-up and running smoothly, no impact on the power grid

6.       fast start with load, high torque, quick inflatable

7.       power frequency/variable frequency switching

8.       perfect protection mechanism, reliable operation

9.       smaller volume is needed for gas storage equipment

Parameter setting of V5-H sensorless vector control (field-oriented control) and PID feedback closed loop control AC VSD drives (frequency inverters):

Parameter of AC drives

value

meaning

P0.03

1

Analog feedback process closed loop control

P0.04

1

Frequency value setting by analog signal from AI1 terminal

P0.06

1

Running command by AI1 terminal

P0.08

3

Acceleration time: 3 seconds

P0.09

3

Deceleration time: 3 seconds

P0.14

25

Lower frequency limit: 25Hz

P3.09

1

Negative rotation disallowed

P5.00

2

X1 terminal function: positive rotation (FWD)

P5.01

20

X2 terminal function: reset input of terminal failure

P6.00

4440

AI1 ~ AI3, DI analog  input curve setting

P6.01

20

A0 value of curve 1

P7.02

14

Function of relay: failure of drive (frequency inverter)

P8.00

0

voltage setting of analog feedback process closed loop: 0 V

System Diagram:

V&T Technologies Co., Ltd.

Website: http://www.ecodrivecn.com

Email: sales@ecodrivecn.com

Some competitive advantages:

Failure rate:

Our failure rate < 1%, similar as ABB, Schneider, Lenze, Eaton, Siemens, Emerson, Yaskawa.

other small brands: > 1.5%, or even > 2%.

CE certificate:

Our CE certificate: issued by authorized party: ECMG. (http://www.ecodrivecn.com/CE-certificate.htm)

other small brands: issued by the unknown party.

Business partner:

we are supplying to REGAL, Ingersoll Rand, Foxconn, BYD, L.K. Group, CG Group..., which is famous in the world or in the field.

other small brands: supply to some small projects, not supply stably to any famous companies