Off-Grid Systems are widely used in domestic as an option for sending power to the grid is not available for all the consumers. An off-grid system can be used in two ways. You can use it as an uninterrupted power supply or you can use it as a regular power supply. Depending upon the application there are two types of the inverter.
Solar UPS Inverter: Solar ups inverters are the same as our home inverter that supplies power when the grid supply is out. The only difference is that Solar inverters charge the battery primarily from solar energy and power the load during the grid outage. During grid outage, if sufficient solar energy is available runs the load from solar power.
Solar PCU: On the other hand solar power conditioning units continuously runs the load primarily from solar energy as well as charges the battery from solar energy irrespective of a grid outage.
There are some common features for both types of inverters like MPPT/PWM and Sine-Wave output. Apart from this, every inverter has one battery charger that charges the battery from the mains as well as one battery charge controller that protects the battery from over-charging or deep-discharging. Sometimes a battery balancing unit is also there. Some of the inverters come with IoT based remote monitoring or data logging like features this depends upon the manufactures and model of the device.
MPPT: Maximum Power Point Trackers are used to capture maximum output from solar panels. An MPPT is an electronic DC to DC converter that optimizes the match between the solar array (PV panels), and the battery bank.
PWM: Maximum power points could also be achieved by using PWM based DC-DC converters. PWM converters are very much used in lower voltage systems. Especially for 12V systems and less as they are cheap and reliable.
No comments:
Post a Comment