Wind Inverter

The power of wind will be taken through a wind turbine and the power of the sun light will be taken through a solar panel. These wind turbines and solar panels will be delivering DC voltages. These voltages will be fed separately to charge controllers. Charge controller will be either PWM or MPPT. These charge controllers will be control the output voltage and will protect the battery from overloading and will protect the wind/solar units from reverse voltage flows. The outputs of charge controllers will be connected to batteries. These batteries will be connected together in series or parallel. The outputs of the battery will then fed to the grid tie inverter and because of specialized functions of it as I explained before in the inverter

Here we will be using a normal DC/AC inverter and we will be filtering the output frequency by using a filter circuit. This filter circuit will then output a pure sine wave DC/AC inverted power. Either this is pure sine wave; we cannot directly connect this to the main grid because still this is not high frequency grid tie inverter. Therefore we came up with an idea of a changeover system and so it will switch the main grid and inverter as for the power consumptions. In the inverter design chapter it is clearly mentioned the function of this changeover unit. By having this unit in our inverter we can connect the Hybrid system to the house holdings directly in parallel to the main grid. After the MCB, we will be fixing this changeover unit. Because of this newly implemented system, we do not need to have dual KWh meters. Because when the inverter running mode switched on automatically the grid will be isolated. Therefore the KWh meter will be stopping running at that time. Only when grid connects, the meter will be started to work. So this will also reduce the cost of the electricity bill. The manufacturing process of this system is much complicated than a normal inverter

So in this case when a dc supply applies to it, the regulated DC voltage will switch the frequency oscillator ic and the MOSFET 's will function the push-pull amplification. This will use a transformer to produce the required power output. Therefore we can get a normal inverter DC/AC output. To make this output a pure sine wave, there is a filter circuit fixed at the output the AC terminal. Therefore it will filter the unnecessary frequencies, harmonics and will produce a constant pure sine wave. But either this produce a constant pure sine wave this cannot be fixed directly to the grid, because it doesn’t have high frequency grid tie inverter process. To avoid this situation and feed the house holdings the inverted power, we have used a specialized changeover switch in between grid and inverter output. This changeover switch will sense the power consumption and the current requirement of the house holdings and the gird power and inverter power. Therefore we will be using a settling value of current and when the power consumption is high the current requirement will be raised. When this requirement exceeds the settling value the changeover relay will be switched to the inverter. When the load is reduced, again the changeover will connect to the grid. If incase the inverter power is less than the required power or the power consumptions is increased than the settling value, again the