CE+T Power BRAVO ST-120 VAC-UL, Руководство пользователя

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TSI TECHNOLOGY
10 - Bravo ST 120 Vac - 2+1 Redundancy - User Manual - v1.0
4. TSI TECHNOLOGY
1
Inverter modules carrying the TSI logo and the EPC mark are triple port converters (AC in, DC in, AC out). Sinusoidal AC
output is converted from the AC main source and/or the DC source.
The block diagram below gives an explicit description of the topology and operation.
BOOST
DSP
T2S
EMI
FILTER
EMI
FILTER
EMI
FILTER
User
Interface
Redundant
Commuication
Bus
L
N
L’
N’
-
+
Local Signaling
The module is built around the following sub-converters
•
AC to DC at input
•
DC to DC at input
•
DC to AC at output
The energy can flow either from the AC source or the DC source under the control of the local DSP controller. The
output sine wave is constant and disturbance free regardless of the active source due to internal energy buffering,
The function of the BOOST is for circuit protection in the event of a circuit fault condition on the output of the system.
When a circuit fault is detected, the system will multiply the output current by approximately 10x to activate the load
circuit protection device (breaker/fuse). The duration of the boost is limited to 20 ms. The power for the boost function
comes primarily from the AC input through a diode bridge. This has been designed in such a way so that it will not trip
the input AC/DC protection devices. This functionality is intended for circuit and equipment protection only. It is not for
personnel safety.
The TSI works according to True Redundant Structure (TRS) that features decentralized and independent logic,
redundant communication bus and three internal levels of disconnection to isolate a module after internal failure.
The TRS functionality is included in every inverter module. Running them in parallel provides a modular system with no
single point of failure, 100% pure sinusoidal output, high system efficiency, and 0 ms source transfer time.
REG modules: Inverter modules carrying the TSI logo together with REG mark are modules working only with DC input.
Sinusoidal output is converted from DC and the module operates as a traditional inverter. EPC Mode and the boost are
not available with REG modules.
1 Information and data given in this chapter intend to for an overview on the technology. Detailed features and parameters for each individual module type of the
range may differ and should be referred in the dedicated data sheet.