For remote applications in which there is no possibility of connecting to the Grid, the best option is off grid system, there are mainly three types of off grid systems: 

Off-grid wind power supply system 

Off-grid wind solar and diesel hybrid power supply system

Wind solar and grid hybrid power supply system

Off-grid wind independent power supply system

System working principle:

small Wind turbine generates electricity, the electricity is charged into the battery group by the charging controller, and then through inverter, the system supply AC power for loads.

System configuration:

System advantages

1. Any place with good wind is suitable for installation

2. Simple design, easy to installation

3. Provide power supply for isolated place.

Application field

Home application, island, small village, small power station, rural domestic, small holdings, agricultural, commercial.

Off-grid wind solar and diesel hybrid power supply system

Working principle of the system:

Wind turbine and solar panel generate electricity, the electricity is charged into the battery group by the charging controller, and then through inverter, the system supply AC power for loads. Diesel generator is used as a back up power, it will start when wind and solar are insufficient, charge into the battery to protect battery.

This system is widely used where there is no power at remote area; In order to reduce energy consumption and environment pollution and save cost, it applies wind and solar power to meet the power use requirements. This system can make full use of the new energy and improve new power efficiency to reduce the diesel consumption and environment pollution and save energy

System configuration:

System advantages

1.Reliability

Modularized design; improve the system reliability through redundant design, which guarantees the system can still work when one of subsystems has malfunction.

2.Good power supply guarantee

Multiple energy complementation; control the rated power to switch diesel for power use when system energy insufficient and meanwhile cut off unnecessary load to enlarge the system power supply time.

3.High efficiency

Since the primary energy is dubious and limited, the efficiency of the system must be treasured; the system adopts IGBT power modules and PWM control mode to reduce the system energy consumption.

4.Good scalability

The system uses modular design to guarantee the system scalability; provide the switch to increase system power capacity to make sure the system upgrade

5.High automation

The whole system application adopts automatic way to control the system and reduce human control, not only to improve the working efficiency, but also increase the system safety and reliability

Application field

Home application, island, small village, small power station, micro grid system, rural domestic, small holdings, agricultural, commercial.

Wind solar and grid hybrid power supply system

Working principle：

Wind turbine and solar panel generate electricity, the electricity is charged into the battery group by the charging controller, and then through inverter, the system supply AC power for loads.

When there is no electricity in batter group, inverter will switch to grid and continue to provide power for loads, meanwhile, inverter will charge into battery to keep battery in good condition.

System advantages

Suitable for places with unstable electricity grid.

Application field

Home application, island, small village, small power station, rural domestic, small holdings, agricultural, commercial.

Application case study Off grid wind power supply system