Reference Pictures of 15kA 380V hydrogen generation thyristor rectifier
This DC Power Supply thyristor rectifier is for hydrogen production through electrolysis of water.
Video of the thyristor rectifier
Main Parameters
Parameter Name | Parameters |
Input voltage | AC 3 phase 20kV ±5%, 50Hz(custom design) |
Rated output DC voltage | DC 380V |
Rated output DC current | DC 15kA |
Output power rating(max.) | DC 5.7MW |
Ramp up function | Yes |
HMI(human-machine interface) | Local touch panel on control cabinet |
Operating mode | Manual(local touch panel)/Auto(DCS) |
Rectifier cooling type | Water cooling by deionized water |
Power factor | 0.9@operating point 100% |
Efficiency @ rated load | ≥97%@operating point 100% |
Stability of output current/power at set point | ±1% |
Harmonics THDi | about <12% without filter compensation |
Materials of construction of AC&DC bus bar | Copper |
Type of control | Digital control |
Ingress protection class (IP) of rectifier panel | IP42(could reach IP54) |
Ambient temperature considered for design purpose | Max. 50℃ |
Type of DCCT | Hall |
Rectifier | Thyristor based |
Rectifier main circuit configuration | Three phase bridge |
Type and mode of control | Constant current |
Duties/overload | 150% for 1 minutes, 110% for 5 minutes |
Transformer cooling method | OFWF |
Insulation grade | A |
Transformer installation place | Indoor or outdoor |
Transformer Silicon steel sheets | adopt top quality cold-rolled silicon steel sheet with high permeability and low loss 30Q120 |
HMI | Color touch panel |
Remote control interface | 4-20mA signal and dry contacts Or by communication RS485 or according to customer requirement |
Protections | Earthing monitoring Thyristor RC snubber Fast action fuses Phase loss Input over/under voltage Short circuit Output current limit Rectifier over heat Output over voltage Output over current Transformer gas protection Transformer over temperature And others |
Paint finish | Powder coating RAL7035 |
Mechanical Structure | Non-magnetic material Control parts are in control panel The doors is provided with suitable transparent cover All bolts and nuts in rectifier are stainless steel material. |
Rectifier outline size(L*W*H) and weight | 3000*1500*2200(mm), 3000kg |
Rectifier Main Features
◆ DSP digital control, high accuracy, high reliability
◆ Up to 96 channels of switch signal monitoring(fuse status, thyristor heatsink temperature)
◆ Touch panel HMI, record history data record, monitoring the system status, output waveform, alarm self diagnosis etc.
◆ DC output of rectifier cabinet (oxygen free copper TU1).
◆ The doors are provided with transparent cover to have a clear view of the inside equipment and components. All side covers of rectifier cabinet is removable type.
◆ The live parts are covered for safety. All access doors form part of stop circuit using limit switch to restrict access to high power equipment. The only compartments outside this scope are the LV control panel and cooling system.
◆ The synchronous signal of the rectifier cabinet is taken from secondary of the rectifier transformer and has a low voltage backup synchronous signal source.
◆ The protection level of rectifier cabinet is IP42.
◆ Rectifier busbar is anticorrosive treated.
◆ Rectifier is installed indoor.
◆ Bus bar inside rectifier adopt oxygen-free copper.
◆ Copper bus bar is tin plated.
◆ Rectifier cabinet paint color: RAL7035 or custom design
◆ Each components are marked inside rectifier.
◆ Trigger control: fully digital software regulation trigger.
◆ Overload capability: 105% rated output can run continuously, and 150% rated output can run for one minute.
◆ The thyristors’ current sharing coefficient is more than 0.9, and the current sharing coefficient between the rectifier arms is more than 0.9.
◆ The thyristor use CRRC(mother company of UK Dynex), technology and quality is same level as ABB. The thyristors are the core component of the rectifier, its optimization and selection directly relates to the reliability, service life, current sharing coefficient and overall efficiency of the system, and is very important. Thyristors with uniform parameters can be connected in parallel to minimize the discreteness of component parameters and improve the current sharing coefficient.
◆ Thyristor is N+1 configuration, if one thyristor fails, the rectifier could continue to output rated output without undue damage.
◆ The current control accuracy is better than ±1%.
◆ Mismatch of thyristors of load limited to 10%;
Outline drawing
Contact us
Email: alice@bjgreenpower.com
Mobile: +86 13810151476
Linkedin: https://www.linkedin.com/in/alice-lee-20b63515b/
Company video: https://youtu.be/VMMHVM-iDn0
