Programmable Bidirectional DC Power Supply Series

• Customization: Available
• Output Type: DC
• Warranty: 1 Year
• Model NO.: Bi-directional DC power supply
• Output Power: >500W
• Input Voltage: 380V
• Connection Mode: Parallel Switching Power Supply
• Energy Transmission: Two-way Transmission
• Certification: CE
• Brand: Xinyuhua
• Other Size2: 1000*1000*1960
• Other Size3: 1200*1000*1900
• Other Size4: 1800*1000*1960
• Transport Package: Carton
• Specification: 615*650*1680
• Trademark: Xinyuhua
• Origin: China
• HS Code: 8504409990
• Production Capacity: 1000sets/Month

Product Description

Product Description

Product introduction

1.1 Product description

XYH series high-precision bidirectional DC power supply is a bidirectional charging and discharging device. It adopts two-stage conversion structure, IGBT type DC power supply with high precision, high reliability, programmable and automatic operation. The DC output characteristics have high precision and high dynamic response characteristics, and automatic bidirectional operation function. It adopts full digital control, high control accuracy, fast response speed and wide output regulation range. The output has programmable function, which can be applied to a variety of occasions through different control.
The main advantage of XYH series power supply is that it can simulate the power battery to simulate the input power, output current, overload capacity, withstand voltage, motor efficiency, locked rotor current, maximum speed, overspeed, feed and other performance of electric vehicle motor controller. The back EMF energy in the overspeed experiment can be fed back to the power grid in real time to effectively protect the controller from damage.

1.2 Product application

1        Electric vehicle drive motor (controller);

2        Electric vehicle transmission system, powertrain system integration;

3        Ship electric drive, electric drive system test;

4        Motor system test;

5        Test of electric vehicle bidirectional charger;

6        Charge and discharge test of battery pack and battery pack;

7        Capacitor and super capacitor charge and discharge test;

8        UPS EPS system test;

9        DC panel system test;

10      PCs (energy storage inverter)

1.3 Product features

1. Built in AC isolation transformer + LC AC / DC filter, input and output electrical isolation; AC circuit breaker has leakage current protection function to effectively prevent electrical safety accidents;
2. Infineon high voltage IGBT module, two-stage conversion, IGBT circuit, pure digital power frequency isolation power supply
3. Energy can be fed back to the power grid: it has the characteristics of power supply and load at the same time. In addition to the performance of high-power DC power supply, it can realize the load function of energy automatic feedback to the power grid, and has the outstanding advantages of energy saving, consumption reduction and green environmental protection;;
4. The DCDC side adopts carrier phase-shifting circuit to make the DC output side more accurate and less ripple;
5. It can realize the characteristics of wide output voltage range, high precision and fast dynamic response;
6. The principle of PWM rectification + PWM inverter is adopted, and the power factor is ≥ 0.99; THD and injected harmonic current meet the national standard GB / T14549-93;
7. The output has constant voltage, constant voltage current limiting, constant current, constant power and constant resistance modes;
8. The DC support capacitor adopts high-voltage film capacitor, which has reliable performance and long service life;
9. The DC output side adopts high-voltage DC fuse, which can effectively carry out short-circuit protection;
10. The main control part of the power supply adopts all digital control circuit, and the main control chip is ti's DSP chip; Touch screen display;
11. High dynamic characteristics; 10% ~ 90% sudden load output voltage response time ≤ 5ms- 90% ~ 90% switching ≤ 10ms;
12. With power battery simulation function, the internal resistance of the simulated battery can be freely determined according to the user's operating conditions.

1.4 Realize function

No.	item
1	General test items	DC resistance of stator winding of drive motor
		Overspeed test
		Operating voltage range
2	Torque -speed -efficiency curve	Torque - Speed curve (universal curve)
		Motor controller speed - Efficiency universal curve
		Drive motor efficiency
		Drive motor system efficiency
3	Measurement of key characteristic parameters	Continuous torque
		Continuous power
		Peak torque
		peak power
		Maximum operating speed
		Efficient workspace
		Maximum efficiency
4	control accuracy	Speed control accuracy test
		Torque control accuracy test
5	Response	Speed response time
		Torque response time
6	Operating current of drive motor controller	Continuous operating current
		Short time operating current
		Max operating current
7	Continuous feed characteristics
8	Controller protection function test
9	Reliability test(GB/T 29307-2012)
10	Short time voltage rise test
11	Locked rotor torque and locked rotor current test
12	Motor temperature rise test
13	Load test
14	Energy feedback test
15	Road simulation test (climbing, acceleration, rolling resistance, etc.)
16	Contact current test
17	Simulation test of ramp starting, uphill and downhill taxiing
18	Steady state cyclic loading durability test
19	Other simulation tests (such as acceleration, braking, parking, etc.) or custom working conditions

2 Principle and system application
XYH series power supply adopts two-stage structure, in which the front stage is PWM bidirectional ACDC rectifier / inverter circuit and the rear stage is buck-boost bidirectional DCDC carrier phase shift circuit. The power frequency transformer with special filter design is used to isolate the power grid. The front stage adopts three-phase half bridge circuit and four quadrant operation. The power factor can be greater than 0.99 and the DC bus voltage can be stabilized at the same time. The bus adopts thin-film capacitor support, with good high-frequency characteristics and long service life. IGBT carrier shift staggered output is adopted at DCDC side, which reduces the output voltage ripple on the premise of improving the reliability of power supply, and ensures the superiority of output power quality in product design. The output adopts LC filter design to eliminate high-frequency components and obtain stable DC voltage output

2.1Function description

1. Supply power to the motor system in the power assembly, ensure the safe shutdown of the equipment and the whole system during the emergency stop of the dynamometer system during the test, and ensure the safety of power consumption, and set the change time for the control command.
2. It is equipped with high-voltage interface terminal, which can easily and quickly connect the high-voltage DC interface box of the tested motor system
3. It has a separate function interface, which shall include general mode, step mode and voltage step, programmable output, and can set current and power protection values.
4. The energy can be fed back to the power grid, which not only has the performance of high-power DC power supply, but also can realize the function of automatic energy feeding back to the power grid load in the full power section, so as to ensure that there is no impact on the power grid and no potential safety hazards during emergency shutdown.
5. Full bridge IGBT control, SVPWM synchronous rectification technology and interleaved parallel carrier phase shift technology, DCDC bipolar circuit, bidirectional energy flow, total harmonic distortion (THD) ≤ 4%
6. The external equipment control and data transmission interface network ports RS485 and can are available for customers to choose. The output characteristics are controllable by remote communication, and the high-precision bidirectional DC power supply feedback signal can be integrated into the bench monitoring system to realize safety protection linkage with the existing dynamometer system
7. With external voltage compensation function, the equipment reserves external voltage compensation interface
8. Open software communication protocol to facilitate secondary development and software integration

3.technical parameter

Model	XD40-800/24-100-1		XD80-800/24-300-1	XD120-800/24-500-1		XD150-800/24-500-1		XD250-800/24-667-1		XD300-800/24-667-1
Rated power	40kW		80kW	120kW		150kW		250kW		300kW
Peak power	60kW		120kW	156kW		180kW		300kW		360kW
Rated current	100A		300A	500A		500A		667A		667A
Peak current	150A		450A	650A		600A		780A		780A
Rated voltage	400V		267V	240V		300V		375V		450V
AC characteristics
Input mode	3P4W+PE
Voltage	380V±15%
Frequency converter	50Hz±5Hz
Power factor	≥0.99
THD	≤4%
DC characteristics
Voltage range	24V-800V
Current range	0-667A
Voltage ripple	≤0.2%F.S
Voltage accuracy	≤0.1%F.S
Current accuracy	≤0.2%F.S
Feedback characteristics
AC voltage	323V~437V(Allowed voltage range)
AC frequency	45Hz~55Hz(Allowed frequency range)
Power factor	≥0.99
Feedback power	Support full scale power feedback
Total harmonic content	≤4%
Communication and interface
Local operation	touch screen
Remote communication	Can (optional), RS485 (optional), Ethernet (standard)
External interface	Support emergency stop, start / stop, fault detection, operation status detection, etc
Safety and environment
insulation resistance	≥20MΩ
Grounding resistance	≤100mΩ
Withstand voltage performance	2000Vdc
Protection function	Phase loss, overheating, overvoltage, voltage limiting, overcurrent, short circuit and overload
Degree of protection	IP21
Ambient temperature	-20ºC~45ºC
Ambient humidity	10%~90%( No condensation)
Altitude	≤2000m
Cooling mode	Forced fan
Noise	≤68dB
Dimensions (W * D * H)mm	615*650*1680	1000*1000*1960			1200*1000*1900		1200*1000*1900		1800*1000*1960		1800*1000*1960

4.Basic function

4.1.Bi-directional DC power supply operation mode
The equipment has five operation modes: constant voltage, constant voltage current limiting, constant current, constant power and constant resistance. The operation parameters of voltage, current and power can be set, and the power protection parameters can be set at the same time
4.2. Control mode selection function
The equipment can set the control mode of the equipment through the operation interface, including local control, communication control, external analog control and default control mode
(1) Local control function
Through the touch screen, control operations such as power operation parameters, operation, stop and fault reset of control equipment can be set. It can also view various parameters of equipment operation and other operation records.
(2) Communication control function
The power operation parameters can be set through the communication software or communication command to control the equipment operation stop, fault reset and other control operations, and the equipment operation parameters and operation records can also be viewed through the touch screen.
(3) External analog control
Control the operation / stop, fault reset, voltage and current regulation of the equipment through the external analog interface, and monitor the power supply voltage, current, operation status and fault status.
(4) Default control
In this control mode, the power supply equipment can be operated through panel operation, communication control and external analog control.
4.3. Emergency stop function
The power supply equipment has emergency stop function. In case of emergency, it can stop the power output through the emergency stop button, communication interface and external control interface on the operation panel.
4.4. Protective device
The power supply equipment has input protection, output overcurrent protection, output overvoltage protection, power device overtemperature protection, IGBT overcurrent protection and programmable OCP, OVP and opp.
4.5. Self discharge function
The power supply output terminal has self discharge function. After the power supply stops output, the power supply can reduce the voltage at the output terminal below the safe voltage within 30s.
Normal operation.
 

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Company Profile

Why Choose US?
• Professional team for after-sale service 7*24
• Experienced R & D team and profesional sales team
•  OEM & ODM service, we will evaluate, design and produce your customized products
•  Offer confidentiality agreement to protect your profit, with us your business will be in safe your money in safe.

Certifications

Warranty:
As our customer, you enjoy the following services:
(1)One year repair for free of the complete machine;
(2)technical Support
(3) Within 24 hours for respond after receiving notification;
(4) Cost maintenance forever.

Packaging & Shipping

FAQ

1.Q:Are you manufacturer? 
   We are a professional power supply manufacturer with high reputation in this field. 

2.Q.Do you have certificates for your products?
  Yes,we have CE, standard certifications. 

3. Q:Can we print our logo?  
    We can print your logo on both power adapter and package.

4. Q: How is your production management and quality control system?
    All our product process follows up ISO9001. Each process has technical instructors.The QC supervisors will regularly inspect the production. We will do products performance tests during production, and comprehensive quality tests when the products is completed.