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EPS emergency power supply is an important guarantee of power system. Its operation is related to the data security of individual and collective units, and in the field of fire protection is related to the personal safety of individuals. Therefore, it is necessary to ensure the safe and reliable operation of EPS power supply.

To improve the reliability of EPS emergency power supply can be analyzed and discussed from two aspects of inverter and battery.

The first is to improve the reliability of power supply of EPS emergency power inverter.

The host of the power supply adopts the integrated circuit design scheme to ensure the hardware matching and software coordination of each functional component;

After that, the inverter using EPS emergency power supply is in the starting working state but does not output power.

In this way, the automatic detection software can be used to carry out repeated automatic inspection on each working point of the inverter. If there is any abnormality, it will give an alarm immediately and eliminate the hidden trouble in time. Meanwhile, the inverter can track the power phase at any time to ensure the fast conversion.

Then adopt the high reliable automatic switching output switch to replace the backward unreliable magnetoelectric switch, so that the inverter can achieve fast and reliable conversion;

In addition, the dual input power supply interswitching device can use the magnetoelectric automatic/manual transfer switch, so as to rationalize the technical index distribution of the whole system.

The second is to improve the reliability of battery power supply, can use the design life is long, withstand the harsh environment of the high quality brand battery;

The voltage (uniform charge/floating charge), current (charge/discharge), conductance (internal resistance), temperature and other parameters of a single battery are monitored online. When the preset threshold is exceeded, an alarm will be given immediately so that individual batteries can be handled in a timely manner.

Improve the reliability of EPS emergency power supply can also be set out from the aspects of monitoring and alarm, through the bus to the dual mains switch device, each host static operation parameters, single batteries battery state of working parameters, output power distribution ark operation parameters, alarm information, according to the centralized and unified information about EPS emergency power supply can be distributed fieldbus uploaded to the central monitoring system.