In the last few years, MEAN WELL released multiple HVDC product lines for various applications in the fields of new energy applications: green energy, energy saving, energy storage, and smart industry fields, such as photovoltaic power generation, energy storage, wind power generation, and other related applications. This article shares two HVDC applications: Solar Tracker and Class 4 Power System (Fault Management Power System, FMPS).

1. Solar Tracker – Solar power plane generates Mega Watts of power by large scale of solar arrays voltage at 1000~1500Vdc. To maximize the power generation, the high voltage 1000~1500Vdc often uses as main supply to turn the solar arrays to track the solar. MEAN WELL RSDH-150 and RSDH-300 HVDC input DC-to-DC power supply is the solution for Solar Tracker to step down the 1000~1500Vdc High Voltage to power a motor to position the solar arrays and to charge a battery to reset the solar array position after sunset. Moreover, the RSDH-150/300 semi-encapsulated and -40°C operational are two other features suitable for outdoor installation.

  

2. Class 4 Power System (FMPS) – Fault-Managed Power Systems consist of a fault-managed power transmitter and a fault-managed power receiver connected by a cabling system. These systems are characterized by monitoring the circuit for faults and controlling the power transmitted to ensure the energy and power delivered into any fault is limited. Figure 2 illustrates the FMPS system along with powered devices by the Receiver.
 

 

The advantage of Class 4 Power System over AC power is lower installation cost by not requiring conduit to enclose a thousand feet of power cable, remote monitoring/control and expandable. To reduce voltage and power loss over long distances, Class 4 Power System utilizes HVDC at 350~360Vdc at the Transmitter Input and Receiver Output. MEAN WELL HVDC input and output power supplies play a significant role for Class 4 Power System. For instance, the 260V~400Vdc output NCP-3200-380 scalable rack solution is used to supply power to the Class 4 Transmitters. The high input voltage 250~1500Vdc DDRH-240 & RSDH-300 series can step down the Class 4 Receiver output to power low voltage devices such as PoE.

In summary, MEAN WELL HVDC power supplies provide immediate solutions for both Solar Tracker and Class 4 Power System Applications that the RSDH/DDRH series step down the High Voltage to power low voltage devices and the NCP series converts AC to High Voltage DC to power the Transmitters.

Table below shows MEAN WELL HVDC Power Solutions:

For related product and application requirements, please contact MEAN WELL distributors or MEAN WELL application engineers.

Also, do not forget to stay tuned for online products and solutions courses on MEAN WELL virtual EXPO.

 

 

Reference Source:

• ISE ICT Solutions & Education
• NFPA 70 (Article 726)