skeptic2 said:In order to connect to the grid the voltage, frequency and phase would have to closely match that of the grid. How would you accomplish that?
Frankly I have wondered why they couldn't use a DC generator, but instead of a DC field on the generator, connect the field coil to the grid at the right phase to produce an output in phase and at the same frequency as the grid.
A wind turbine AC-DC-AC is a type of wind turbine that converts the mechanical energy of wind into electrical energy through a series of conversions from alternating current (AC) to direct current (DC) and back to AC. This allows for the electricity produced to be compatible with the power grid.
First, the blades of the wind turbine capture the kinetic energy of the wind and rotate a shaft connected to a generator. This generator produces AC electricity, which is then converted to DC by a rectifier. The DC electricity is then fed into an inverter, which converts it back to AC at the appropriate voltage and frequency for the power grid.
One advantage is that the AC-DC-AC system allows for the wind turbine to operate at variable speeds, adjusting to changing wind conditions. Additionally, the DC link between the generator and the inverter allows for more efficient use of the wind energy. Finally, the AC-DC-AC system is compatible with the power grid, allowing for the electricity produced to be easily distributed and used.
One disadvantage is that the AC-DC-AC system requires more complex and expensive equipment compared to a simple AC wind turbine. Additionally, the conversion process from AC to DC and back to AC can result in some energy loss. Maintenance and repair of the multiple components in the system can also be more challenging.
Wind turbine AC-DC-AC systems are commonly used in large-scale wind farms to produce electricity for the power grid. They can also be used in smaller applications such as off-grid homes or remote locations where traditional power sources are not available. Additionally, AC-DC-AC systems can be used in combination with battery storage to store excess energy for later use.