Practical benefits of high-frequency online UPS parallel operation ability to enterprises
UPS parallel operation refers to the parallel operation of several UPS of the same model. Combined with the characteristics of high-frequency online self-regulation, purification and uninterrupted power supply, the core values are concentrated in five dimensions: reliability, expansion, operation and maintenance, cost and load adaptation. The benefits of landing are as follows:
First, improve the reliability of power supply and put an end to single point of failure (core value)
Redundant backup to prevent equipment downtime
N+1 parallel redundancy is commonly used (one more UPS is used as a backup). When a single UPS fails, overhauls or stops, the other devices automatically take over the load, and the load will not be powered off all the time. Suitable for zero power-off scenarios such as server rooms, data centers, production lines, security monitoring, medical equipment, etc., to avoid business interruption, data loss and production stoppage.
Fail-automatic switching
The switching speed of high-frequency UPS is extremely fast, and the fault switching of parallel system is completed in milliseconds. The back-end precision electronic equipment and IT load are completely unaware, and there will be no restart, blue screen and equipment damage.
Second, flexible capacity expansion to adapt to business growth
Step-by-step investment and capacity increase on demand
When the initial load of the enterprise is low, the low-power parallel system can be deployed first; When the computer room is expanded, the equipment is increased and the production capacity is improved in the later stage, the total carrying capacity can be improved by directly adding UPS in parallel, and there is no need to replace the high-power UPS as a whole, thus avoiding a large one-time investment.
Computer room planning is more flexible
There is no need to reserve super-high power single machine seats in advance, and multiple low-power parallel machines can be distributed to adapt to the room space and power distribution layout.
Third, reduce the difficulty of operation and maintenance, and ensure continuous maintenance.
Online maintenance, non-stop business
The parallel system supports single-machine online off-line maintenance: when a single UPS is powered off for maintenance, replacement of accessories and battery maintenance, the rest of the units share the load, and the back-end business does not need to be stopped in the whole process, thus solving the pain point of "power failure for maintenance" of traditional single UPS.
Easy troubleshooting and risk dispersion.
The load is shared equally by multiple devices, and the impact range of a single fault is extremely small; Operation and maintenance personnel can locate the faulty unit independently, which makes the maintenance efficiency higher.
Fourth, optimize the load operation and prolong the service life of the equipment.
Load sharing, reducing single machine load.
After parallel connection, the total load is shared by multiple UPS equally, and the operating load rate of each device is lower, the heating is reduced, the loss of components is slower, the service life of UPS host and battery is significantly prolonged, and the replacement frequency is reduced.
Superposition of stabilizing pressure and purifying effect
High-frequency on-line UPS itself has strong filtering, surge resistance and voltage stabilization capabilities. The parallel system further stabilizes the output power, protects precise loads such as switches, servers and industrial controllers, and reduces hardware failures caused by voltage instability and harmonics.
Five, save energy and reduce costs, improve operating efficiency.
Light load and efficient operation
The energy efficiency of high-frequency UPS itself is higher than that of power frequency UPS, and multi-machine parallel operation can intelligently sleep according to the actual load (when the load is low, some units are on standby, and only a few units are running), which greatly reduces the no-load/light-load loss and reduces the electricity bill.
Unified battery management
The parallel system can be equipped with a unified battery pack, and the battery capacity and status can be monitored centrally. Compared with multiple sets of independent stand-alone UPS, the cost of battery procurement, inspection and replacement is lower.
Sixth, meet the high-grade power supply standards
In industries such as finance, government affairs, IDC, intelligent manufacturing, rail transit, etc., power supply specifications generally require dual-channel/redundant power supply architecture. UPS parallel operation is the standard for realizing high-level power supply architecture, which helps enterprises meet the requirements of industry compliance, equal maintenance and computer room rating.
Supplementary summary of typical application scenarios
Small and micro enterprises/offices: N+1 parallel machine to prevent accidental power failure, protect office servers and monitor;
Small and medium-sized computer rooms: step-by-step expansion+online maintenance, and adaptive equipment is increasing year by year;
Industrial production line/medical equipment: redundant power supply, eliminating the risk of line stoppage and power failure of medical equipment;
Large-scale data center: multiple computers are connected in parallel to form a high-power power supply system, and the availability of power supply is over 99.999% by combining redundancy.
