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DC-DC Converter

EPT applied advanced power electronic technology to the development of bidirectional isolated DC-DC converter. EPT Co. has a mature technology for high power (1000V,1000A) DC-DC power conversion.
The EPT battery simulator is suitable for building a dynamo-systems or it can utilized solely for ESS, battery simulation or solar panel simulation. It is programmable, high power, regenerative source & sink. It achieves nearly unity power factor in source and sink modes. The standard operation enables the operator to parameterize and set all important values and to monitor process relevant data during run state.

(주)EPT는 10kW ~ 500 kW의 양방향 DC-DC 컨버터를 생산하고 있습니다. 입력은 3상 AC grid(380~440Vac)에 연결되고 출력은 DC 전류를 공급 (Power supply mode)하거나 DC 전류를 받아 들입니다 (Electronic load mode). 정전압원으로 동작하며 전류의 공급과 흡수가 스위치 절환없이 연속적으로 (seamless operation) 이루어 집니다. 따라서 모터 및 인버터에 배터리 같은 역할을 하며 배터리 시뮬레이터(BTS)로도 동작합니다. 또한 태양광 판넬과 같이 동작하여 태양광 인버터 및 BESS 개발에 적합합니다. BTS-500은 1000V, ±1000A까지 동작이 가능하며, BTS-250은 500V,±500A까지 공급이 가능합니다. ISG 개발용으로 80V, 500A가 가능한 BTS-30도 생산 공급합니다.






BTS-250



BTS-250
Input (AC)
Voltage 380 – 460 (3phase) AC
Current 330A (max)
Power Factor 0.99
Output (DC)
Output Range 50 – 680 VDC
Max. Power ± 250 kW
Max. Current ± 600 A
System Current Response ≈ 0.5 ms
Voltage Response ≤ 10.0 ms
Voltage Accuracy < 1.0%FS or 0.1%FS
Current Accuracy < 1.0%FS or 0.1%FS
Protection Operating Temp. 5 – 40 °C
Protection Over Current / Voltage / Temp.
IGBT Fault / Unbalance / Can Fault
Communication CAN, RS485



BTS-500



BTS-250
Input (AC)
Voltage 380 – 460 (3phase) AC
Current 660A (max)
Power Factor 0.98
Output (DC)
Output Range 50 – 850 VDC (Type A)
50 – 1000 VDC (Type B)
Max. Power ± 500 kW
Max. Current ± 1000 A
System Current Response ≈ 1 ms
Voltage Response ≤ 15.0 ms
Voltage Accuracy < 1.0%FS or 0.1%FS
Current Accuracy < 1.0%FS or 0.1%FS
Protection Operating Temp. 5 – 40 °C
Protection Over Current / Voltage / Temp.
IGBT Fault / Unbalance / Can Fault
Communication CAN, RS485



BTS-20/30

BTS-20 is a bidirectional low voltage, high current DC-DC converter. It can be used as a power source for the inverter for 48V battery system. It is especially useful for development of integrated starter-generator (ISG) system. BTS-30 is capable of supplying 80V, ±500A.

BTS-20은 저전압 고전류 양방향 DC-DC 컨버터입니다. 이것은 48V battery 에 적용되는 인버터의 전원으로 적합하며, 특히 48V ISG(Integrated Starter-Generator) 개발에 유용합니다. 상위 모델인 BTS-30은 80V, ±500A로 출력합니다.




BTS-20/30
  BTS-20 BTS-30
Line Voltage 3 x 380 ± 3% VAC
Line Frequency 50/60 Hz ± 3%
Input Current 3 x 32A (20kW) 3 x 46A (30kW)
Output Voltage Range 0 – 60 VDC 0 – 80 VDC
Maximum Power ± 20 kW ± 30 kW
Maximum Output Current ± 350 A ± 500 A
Voltage tolerance static max. ±0.1% FS
Current tolerance static max. ±0.1% FS
Current rise/fall time (10% to 90%) < 2.0 ms
Protection OC, OV, Overheating, Zero Sequence Current, Communication-Fault, External Error
Voltage accuracy ±0.1% FS
Current accuracy ±0.1% FS
Operating temperature 5 – 40 °C
Degree of Protection IP23
Dimension (H*W*D) 1070mm * 700mm * 900mm