Isolated Bidirectional DC/DC Module - CDC350KAC
Description
The CDC350KAC is a galvanically isolated and fully integrated high-power DC/DC converter module, suitable for use in systems within renewable energy, battery charging, energy storage and as a general-purpose converter.
The CDC350KAC is a compact module with a rated DC power of 50kW in a 19” rack module with a height of only 3RU. In addition, it supports bidirectional power flow with a seamless transition between directions of flow and offers a choice of different control modes including current regulation with voltage limitation and voltage regulation with current limitation.
Up to 16 units can parallel in a master-slave system for increased system power levels, while internal fusing on both DC power ports reduces the need for external components, advantageous in large systems having many parallel modules.
The CAN-bus based master/slave paralleling system is well proven and proprietary to Converdan. It allows very accurate load sharing between power modules in voltage regulation mode as well as intelligently bringing the required number of power modules online, depending on configurable strategies like actual load matching, part-load efficiency maximization as well as module redundancy and wear management.
Features
- Galvanically Isolated
- 50kW Nominal DC Power
- Bidirectional Power Flow
- Parallel Operation
- Voltage or Current Regulation
- High Efficiency
- Air Cooled
- DC fuses (input & output) built in
- CAN Interface for Control & Monitoring
Block Diagram
Typical/Recommended Operating Conditions
Parameter
DC Port #1
DC Voltage range
DC Current
Maximum Output Power
.
DC Port #2
DC Voltage Range
DC Current
Maximun Output Power
.
Control
AUX & CAN Power Supply Input Voltage
AUX & CAN Power Supply Input Current
Min
.
500
-74
.
.
.
150
-125
.
.
.
23
–
Max
.
925
74
50
.
.
950
125
50
.
.
27
2.40
Unit
.
Vdc
A
kW
.
.
Vdc
A
kW
.
.
V
A
Control Modes (Selectable via CAN)
Port 1 voltage regulation (DC-link mode)
Port 2 current regulation with voltage limiter
Port 2 voltage regulation with current limiter
Control Accurancy (from setpoint) Port #2, Voltage/Current
Low Load Efficiency (Vdc1=900V; Vdc2=800V; P=8kW)
Peak Efficiency (Vdc1=800V; Vdc2=700V; P=50kW)
-0.5/-1.0
–
–
0.5/1.0
97.0
98.6
%
%
%
Environmental
Operating Temperature Range Ambient Full Power (Note 1)
.
-20
.
50
.
°C
Notes:
1. The unit will automatically limit the maximum allowable Port #2 current, when temperature exceeds maximum value.
Protection Features
- DC voltage out of range
- High
- Low
- Wrong Polarity
- Operating temperature high
- Master/slave communication time-out
- Internal faults
Normative
Approvals
- 2014/30/EU (Electromagnetic Compatibility (EMC) Directive)
- 2014/35/EU (Low Voltage Directive)
- 2011/65/EU (RoHS Directive)
UL Approval upon request.
Safety
- IEC62477-1
- UL1012 (upon request)
EMC
- IEC61000-6-2, immunity (industrial environments)
- IEC 61000-6-3, emission (residential, commercial, and light-industrial environments)
For complete set of specifications, please request the targeted datasheet below.
Adapt. Convert. Empower.
