POWER CONVERTER DESIGN AND ATS AUTO GENERATOR CONTROL (AUTOMATIC TRANSFER SWITCH )

POWER CONVERTER DESIGN AND ATS AUTO GENERATOR CONTROL AUTOMATIC TRANSFER SWITCH • Phạm Hữu Thanh TEACHER: TS.Nguyễn Trí Cường... I 4 During operation, some common problems may occur su

POWER CONVERTER DESIGN AND ATS AUTO GENERATOR CONTROL

(AUTOMATIC TRANSFER SWITCH )

• Phạm Hữu Thanh

TEACHER: TS.Nguyễn Trí Cường

CONTENT 3

1

2

3

4

INTRODUCE

ALGORITHM DESIGN

RESULT

CONCLUSIONS AND FUTUREWORK

I

4

During operation, some common problems may occur such as:

power failure, phase loss, voltage drop, overvoltage, phase difference, phase imbalance, noise on the line,

I

5

When there is a power outage on the grid, special loads will require an alternate

backup power source.

An automatic power transfer device, also known as ATS (Automatic

Transfer Switch) is used to automatically transfer the load from the main

power source to the backup source when the main source fails and vice

versa when the main power is restored or switched intentionally.

What is an ATS system?

II

6

ATS structure with main grid – 2 backup

generators

This construction allows two generators to work

alternately or in parallel, resulting in higher power

generation efficiency and longer traction motor life.

II

7

The following requirements must be followed during operation: :

Only startup one to three times each power outage.

After the engine has successfully operated for 5 to 7 seconds,

the starter must be turned off.

Before putting oil into the combustion chamber of an engine,

it must be dried.

When stopping, you'll need some time to cool off.

It is vital to avoid repeated beginning when the mains voltage

fluctuates or the grid voltage flickers

Diesel generator

ALGORITHM DESIGN

III

8

Manual

mode

Auto mode

ALGORITHM DESIGN

III

9

IV

10

Time diagram in case of power on after 5 hours Time diagram in case of power on after 5 hours

Time diagram in case the generators do not power up

IV

11

CONCLUSION AND FUTUREWORK

V

12

CONCLUSION

 The results of the performed test ensure the ATS-design’s functioning and compliance with requirements and

constraints

 Our design is appropriate for the subject of Project II and at

a cheaper cost

FUTURE WORK

 In future work, we will broaden our approach

by incorporating additional features such as display and monitoring on the webserver or the HMI.

THANK YOU ! Reference[1] E and R Meeks, ”Energy efficiency and electricity reliability,”

1471- 1478, 2010

”Impact of automatic switches on power distribution system reliability,” Electr Power Syst Res., vol 83, no 1, pp 51-57, 2012

[6] P M Curtis, ”Automatic Transfer Switch Technology, Application, and Maintenance,” in Maintaining Mission Critical Systems in a 24/7 Environment, IEEE, 2007, pp 89-111

[7] B Tian et al., ”400 V/1000 kVA Hybrid Automatic Transfer Switch,” IEEE Trans Ind Electron., vol 60, no 12, pp 5422–5435, 2013 [8] FX3G SERIES PROGRAMMABLE CONTROLLERS HARDWARE MANUAL

[9] Everlasting company, ”Operation and Maintenance Manual for Diesel

Generator Sets ” [10] R A Simmons and F S Salem, “High voltage automatic transfer switch: going beyond normal distribution solutions”, 9Ih Inter Conf

On Harmonics and Quality of Power, Vol 3,2000, pp 882-886

[11] R E Cousy, “Transfer switch ratings ‘without fuses or circuit breakers”, IEEE Trans on Power Delivery, San., 1990, pp.202-203 [12] R E Cosse, J E Bowen and W H Nichols, “Is selectivity achieved in critical low-voltage UPS and standby generator power circuits?”, IEEE

Trans On Industry Applications, Vol 37, Jul., 2001, pp 1140-1 151 [13] K T Erickson, ”Programmable logic controllers”, IEEE Potentials VoLlS, Feb., 1996, pp 14-17,

[14] E A Parr, “Programmable controllers: an engineer’s guide”, Newnes,

1997

ALGORITHM DESIGN

III

14

ALGORITHM DESIGN

III

15

I

16

Power outages have the greatest impact on all economic sectors from agriculture to industry to daily life.