Application of Measurement and Control Technology of Digital for the Power Inverter - Advanced Research on Computer Education, Simulation and Modeling - page 88

maintain the normal operation of the load, power conversion time is zero, truly
non-stop for electricity. Inverter type of high quality, but expensive.
Online interactive with the main inverter to the network, which combines off-line
power supply with high efficiency and high quality features, and off-line inverter
switching time is short compared to[5].
In short, the uninterruptible power supply UPS's inverter should be included in the
traditional sense of the following links and features: power in a variety of complex
operating environment; in the operation will not generate additional electricity
interference; output performance indicators should be is a comprehensive, high quality,
and that can meet the requirements of the load; inverter itself should have a high
efficiency, close to the actual output of electricity capacity; is a high degree of
intelligence equipment, a highly intelligent self-test function automatically display,
alarm, status memory, and communications functions; inverter not only by its direct
power supply to the various hardware devices to provide comprehensive protection, in
the Internet age, they should also be run to the software and data transmission means to
provide safe and reliable protection, configure the power monitoring software, with
remote management capabilities to enable users to perform network management
platform inverter and monitoring and data communication between the operations.

3.3 Emergency Power Supply System (EPS) Inverter Characteristics

Emergency Power Supply System (EPS) has been widely used in construction of
electrical fields and special occasions, emergency power, known as the "urban lifeline
systems," the important part.. As shown in Figure 3. One of the main design idea is the
inverter power suddenly interrupted in the city to provide safe and reliable emergency
power supply to avoid a disaster when the personal injury and property damage as a
principle. Therefore, the inverter should focus on its safety, reliability, applicability and
reasonableness.

Inverter Inverter

Rectifier Rectifier

Output Output

Charger Charger Battery Battery

Detector Detector

Fig. 3. EPS inverter

Main features are:
Power conversion time is usually in milliseconds (25ms), in order to ensure timeliness
of supply; load adaptability, including capacitive, inductive, mixed load, overload and
impact resistance and strong;