Performance comparison between modularized UPS and tower-type UPS
Time of issue:2017-02-23
Views:
Modularized UPS has more advantages when compared to traditional tower-type UPS, however, there also exist some disputes incurred by different recognition in different regions and industries.
In this article, we will not make too detailed comparisons, but merely enumerate the following comparison of relevant characteristics. Investment comparison is merely provided for reference. Since the price of each manufacturer’s products is not the same, it shall be determined by piratical conditions.
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|
Detail |
Tower-type UPS |
Modularized UPS |
INVT Modularized UPS |
|
Parallel network reliability |
Hardware design |
Power controller |
Power controller +parallel-operation controller |
Isolation airway heat-dissipation design+ PCB three-proofing spray-coating technique |
|
Logic design |
Master-slave competitive redundancy, complex logic |
Master-slave competitive redundancy or centralized control |
Use non-master-slave decentralized control logic mode |
|
|
Telecommunication |
Single CAN or dual CAN |
Single CAN or dual CAN |
Dual CAN redundancy |
|
|
Reliability evaluation |
êêêê |
êêêê |
êêêêê |
|
|
power unit reliability |
Voltage loop |
Independently controlled module |
Independently controlled module |
Independently controlled module |
|
Electric current loop |
Analog control/digital control |
Fully-digital control |
Fully-digital control |
|
|
Device-level reliability |
Relatively small redundant design |
Partial redundant design |
Use integrated package IGBT module device |
|
|
Reliability evaluation |
êêê |
êêêê |
êêêêê |
|
|
Bypass unit reliability |
Parallel-operation bypass mode |
Dispersive-type bypass |
Inner-stand parallel operation: |
Inner-stand parallel operation: centralized bypass |
|
Reliability evaluation |
êêêê |
êêêê |
êêêêê |
|
|
Failure impact of power unit |
Scope |
Malfunction of single unit will incur loss of complete-machine system, large power loss |
Malfunction of single module merely affects single module, small power loss |
Malfunction of single module merely affects single module, small power loss |
|
Reliability evaluation |
êêêê |
êêêêê |
êêêêê |
|
|
Overall reliability evaluation |
êêêê |
êêêê |
êêêêêê |
|
Table 1: Reliability comparison between tower-type UPS and modularized UPS
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|
Detail |
Tower-type UPS |
Modularized UPS |
INVT Modularized UPS |
|
Installation, transportation |
Volume & weight |
Large |
Small |
Small |
|
Transportation |
Sometimes it is required to alter machine-room infrastructure construction, partially can be divided-cabinet transported |
Divided cabinet and divided-module transportation are both feasible. |
Divided cabinet, divided-module and integral transportation are both feasible. |
|
|
Capacity expansion |
Basically equivalent to demolition and reconstruction |
Easy capacity expansion, staged investment |
Easy capacity expansion, staged investment |
|
|
usability evaluation |
êêêê |
êêêêê |
êêêêê |
|
|
Usage |
Monitoring |
Equipped with basic monitoring capability |
Equipped with basic monitoring capability |
Strong monitoring function |
|
Battery |
It is seldom alleged to be possibly shared for use. |
It can be partially shared for use. |
All can be shared for use. |
|
|
Usability evaluation |
êêêê |
êêêê |
êêêêê |
|
|
Maintenance |
Maintenance |
It is required to dismantle cable and internal structure, long maintenance time, modular detachable module maintenance |
Online hot-plug replacement of power module |
Monitoring module, bypass module, power module online hot-plug |
|
Usability evaluation |
êêê |
êêêê |
êêêêê |
|
|
Overall usability evaluation |
êêê |
êêêê |
êêêêêê |
|
Table 2: Usability comparison between tower-type UPS and modularized UPS
|
|
Detail |
Tower-type UPS |
Modularized UPS |
INVT Modularized UPS |
|
Equipment |
UPS host machine |
Complete-machine parallel operation redundant power is huge, medium-amount fees |
Module parallel operation redundant power is small, medium-amount fees |
Power module10-50KVA has seven options for power modules, mainframe cabinet has over thirteen options. With flexible configuration, most reasonable configuration can be chosen to save overall investment. |
|
Battery |
Seldom alleged to be possibly shared for use, relatively high configuration |
Partially can be shared for use, flexible configuration, low fees |
All can be shared for use, 32-44 flexible configuration |
|
|
Investment evaluation |
êêêê |
êêêêê |
êêêêê |
|
|
Installation, transportation |
Volume & weight |
Large, high fees of land rental and load-bearing components |
Small |
Small |
|
Transportation |
Sometimes it is required to alter machine-room infrastructure construction |
Divided-cabinet and divided-module transportation are both feasible. |
Divided-cabinet and divided-module transportation are both feasible. |
|
|
Capacity expansion |
Basically equivalent to demolition and reconstruction, high costs |
Easy capacity expansion, staged investment |
Easy capacity expansion, staged investment |
|
|
Investment evaluation |
êêêê |
êêêêê |
êêêêê |
|
|
Operation |
Efficiency |
85%-94% |
94%-96% |
96% |
|
Investment evaluation |
êêê |
êêêê |
êêêêê |
|
|
Maintenance |
Maintenance |
It is required to dismantle cable and internal structure, high maintenance fees, modular dismountable module maintenance, medium-amount maintenance fees |
Online hot plug replacement of power module, maintenance fees is relatively low |
Monitoring online hot plug replacement of bypass module and power module, maintenance fees is relatively low. |
|
Investment evaluation |
êêê |
êêêê |
êêêêê |
|
|
Overall investment evaluation |
êêê |
êêêê |
êêêêê |
|
Table 3: Investment Comparison between tower-type UPS and modularized UPS
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