DC to DC Converter

DC to DC converter

Product Introduction:

Bidirectional DCDC converter is applied to new energy, which operates in cooperation with battery, battery, DC bus, motor controller and motor to realize various operation conditions of new energy, energy recovery and prolong the service life of battery.

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product details

DC to DC Converter:

Working principle:

Function introduction:

1. Realize the two-way flow of energy, that is, it can charge from the battery side to the bus and charge the battery from the bus side

2. It has full-automatic protection functions such as overheating, overvoltage, overload and overcurrent

3. Original imported power devices shall be selected

4. The main control chip adopts microchip industrial MCU and full digital circuit design

5. All industrial chips are used, which can operate normally in cold, high temperature and humid environment.

6. Standard RS-232 communication, RS-485, GPRS, Ethernet and other communication modes can be selected to meet the needs of different occasions to the greatest extent

Technic Parameter:

Model	50K-1000kw DC-DC
Operation mode	Continuous work
Rated output power （KW）	50-1000kw
High voltage side parameters
Max.power（ KW）	50-1000kw
DC voltage range	DC 50V-850V
Current range	0--±160A（3200A）
Voltage stabilizing accuracy	<0.1%F.S.
Current stabilizing accuracy	<0.1%F.S.
DC voltage ripple	<0.3%F.S.
Low voltage side parameters
Max.power（ KW）	50
DC voltage range	DC 0-800V
Current range	0--±200A（4000A）
Voltage stabilizing accuracy	<0.1%F.S.
Current stabilizing accuracy	<0.1%F.S.
DC voltage ripple	<0.3%F.S.
Parallel No.	20units
System
System power supply	1. AC 220 V (required when the low voltage side voltage is lower than 180V)
System power supply	2. The low voltage side voltage is between 180v-750v
Noise	65dB
Protect Class	IP21
Allowable ambient temperature	－20℃～+45℃
Cooling mode	Forced air cooling
Allowable relative humidity	0～95% （ non-condensing ）
Max. allowable altitude	≤2000m（derating over 2000m ）
Emergency stop	Yes (via emergency stop button)
Display and communication
Display	External touch screen
Standard communication mode	Ethernet / RS232 (Modbus Protocol)
Size / weight
Host size	WLH 482.6mm600mm222.2mm

(Modbus TCPIP and Modbus RS485 )

Equipment interface

The schematic picture is as follows

Interface introduction

The equipment interface has three interfaces: RS232 \ RS485 \ Ethernet;

1. RS232 is responsible for real-time communication with the lower computer control board for data acquisition;

2. Communication protocol internal customization;

3. RS485 interface is connected with remote equipment for remote control, and the equipment address can be set; Communication setting: 9600, N, 8,1; The communication protocol is standard Modbus protocol;

4. Ethernet interface is connected with remote equipment for remote control, and IP can be set; The communication protocol is standard modbustcpip protocol; The device address can be set3 、

5. Touch screen bit MODBUS server mode

6. To be filled in correctly

Local IP address 192.168.1.102

Local port number 3000

Remote IP address 192.168.1.100

Remote port number 3000

The following is a detailed explanation of the agreement

No.	Variable name	R Read / write type	Register details	Register address (offset -1)	Variable units and decimal places
1		R	16 bit unsigned binary	1
2		R	16 bit unsigned binary	2
3	Ua	R	16 bit unsigned binary	3	1V
4		R	16 bit unsigned binary	4	1A
5	Ub	R	16 bit unsigned binary	5	1V
6		R	16 bit unsigned binary	6	1A
7	Uc	R	16 bit unsigned binary	7	1V
8		R	16 bit unsigned binary	8	1A
9		R	16 bit unsigned binary	9	1V
10		R	16 bit unsigned binary	10	1V
11		R	16 bit unsigned binary	11	1V
12	Freq2	R	16 bit unsigned binary	12	0.1HZ
13	Udc bus	R	16 bit unsigned binary	13	1V
14	Udc_2	R	16 bit unsigned binary	14	1V bias-32767
15	Idc_1	R	16 bit unsigned binary	15	1A bias-32767
16	Udc_3	R	16 bit unsigned binary	16	1V bias-32767
17		R	16 bit unsigned binary	17
18		R	16 bit unsigned binary	18
19		R	16 bit unsigned binary	19	0.1KW
20		R	16 bit unsigned binary	20
21		R	16 bit unsigned binary	21	0=OFF 1=ON
22		R	16 bit unsigned binary	22	3=Normal 2=DC power source
23		R	16 bit unsigned binary	23	Total charge 1*65535+ total charge 2 0.1kwh
24		R	16 bit unsigned binary	24
25		R	16 bit unsigned binary	25	Total discharge 1*65535+ total discharge 2 0.1kwh
26		R	16 bit unsigned binary	26
27	ErrorFlag dc	R	16 bit unsigned binary	27
28	StartFlag dc	R	16 bit unsigned binary	28	0=OFF 1=ON
29	Mode Flag dc	R	16 bit unsigned binary	29
30		R	16 bit unsigned binary	30	2= constant voltage, constant current and constant power at low voltage side 6= constant voltage at high voltage side
31		RW	16 bit unsigned binary	31
32		RW	16 bit unsigned binary	32	1V
33		RW	16 bit unsigned binary	33	1KW
34		RW	16 bit unsigned binary	34	1KVAR
35		RW	16 bit unsigned binary	35	3=Normal 2=DC power source
36		RW	16 bit unsigned binary	36
37		RW	16 bit unsigned binary	37
38		RW	16 bit unsigned binary	38
39		RW	16 bit unsigned binary	39
40		RW	16 bit unsigned binary	40
41	Start Stop dc	RW	16 bit unsigned binary	41
42		RW	16 bit unsigned binary	42	1V
43	Udcset	RW	16 bit unsigned binary	43	1V bias-32767
44	Idcset	RW	16 bit unsigned binary	44	1A
45	Pdcset	RW	16 bit unsigned binary	45	1KW
46	ModeFlagSetdc	RW	16 bit unsigned binary	46	2= constant voltage, constant current and constant power at low voltage side 6= constant voltage at high voltage side

DC：DC Error Code Description

Error code description

1=DC overvoltage		Output overvoltage
1=DC overvoltage		Output overvoltage
2= DC short voltage		Input short voltage







10=over current



14=over heat


17= IGBT overcurrent

19=system
20=stop
21= linkage

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