Which is a better choice of Generators Wind turbines

HAWT Wind turbines

Horizontal-axis wind turbines are much more widely used, even if it requires a mechanism for orienting the blades. This type of aero generators is characterized by a higher aerodynamic yield than the vertical one. Moreover, it starts autonomously and has low elements at the ground level.
Horizontal-axis wind turbines (HAWT) consists of a rotor shaft and an electrical generator at the apex of a tower and must be pointed into the wind. In HAWTs small turbines are connected by a simple wind vane and large turbines are generally connected with a wind sensor that is attached with an AC or DC servo motor. When a tower generates turbulence behind it, the turbine is usually located upwind of its supporting tower. Turbine blades are made rigid to put off the blades from being pressed into the tower by high winds. Additionally, the blades are located a substantial distance in front of the tower and are sometimes tilted forward into the wind a small amount.

Doubly Fed Induction Generator

Doubly-fed electric machines also slip-ring generators are electric motors or electric generators, where both the field magnet windings and armature windings are separately connected to equipment outside the machine.
By feeding adjustable frequency AC power to the field windings, the magnetic field can be made to rotate, allowing variation in motor or generator speed. This is useful, for instance, for generators used in wind turbines
Doubly fed electrical generators are similar to AC electrical generators, but have additional features which allow them to run at speeds slightly above or below their natural synchronous speed. This is useful for large variable speed wind turbines, because wind speed can change suddenly. When a gust of wind hits a wind turbine, the blades try to speed up, but a synchronous generator is locked to the speed of the power grid and cannot speed up. So large forces are developed in the hub, gearbox, and generator as the power grid pushes back. This causes wear and damage to the mechanism. If the turbine is allowed to speed up immediately when hit by a wind gust, the stresses are lower with the power from the wind gust still being converted to useful electricity.
One approach to allowing wind turbine speed to vary is to accept whatever frequency the generator produces, convert it to DC, and then convert it to AC at the desired output frequency using an inverter. This is common for small house and farm wind turbines. But the inverters required for megawatt-scale wind turbines are large and expensive.

Permanent Magnet Generator

#1. Permanent magnet synchronous generator

Synchronous generators are the majority source of commercial electrical energy. They are commonly used to convert the mechanical power output of steam turbines, gas turbines, reciprocating engines and hydro turbines into electrical power for the grid. Some designs of Wind turbines also use this generator type.

In the majority of designs the rotating assembly in the center of the generator—the "rotor"—contains the magnet, and the "stator" is the stationary armature that is electrically connected to a load. As shown in the diagram, the perpendicular component of the stator field affects the torque while the parallel component affects the voltage. The load supplied by the generator determines the voltage. If the load is inductive, then the angle between the rotor and stator fields will be greater than 90 degrees which corresponds to an increased generator voltage. This is known as an overexcited generator. The opposite is true for a generator supplying a capacitive load which is known as an underexcited generator. A set of three conductors make up the armature winding in standard utility equipment, constituting three phases of a power circuit—that correspond to the three wires we are accustomed to see on transmission lines. The phases are wound such that they are 120 degrees apart spatially on the stator, providing for a uniform force or torque on the generator rotor. The uniformity of the torque arises because the magnetic fields resulting from the induced currents in the three conductors of the armature winding combine spatially in such a way as to resemble the magnetic field of a single, rotating magnet. This stator magnetic field or "stator field" appears as a steady rotating field and spins at the same frequency as the rotor when the rotor contains a single dipole magnetic field. The two fields move in "synchronicity" and maintain a fixed position relative to each other as they spin

#2 Permanent Magnet Generator - free energy

Generator type harnesses the power of the magnet's repulsion / suction force. Rotary motion is controlled by a small power supply, which is the battery charging pulse for magnets.
The physical theory of this generator is different from ordinary physics. See the difference here:Zero Point Energy Of The Permanent Magnet
Why is this type of generator not common? See the explanation here: Why is the power generation by means of magnetic propulsion not more widespread?
Which is a better choice:
In my opinion, you should choose the type Doubly Fed Induction Generator.
Reason:
1. Doubly fed generators are another solution to this problem. Instead of the usual field winding fed with DC, and an armature winding where the generated electricity comes out, there are two three-phase windings, one stationary and one rotating, both separately connected to equipment outside the generator. Thus the term doubly fed.
One winding is directly connected to the output, and produces 3-phase AC power at the desired grid frequency. The other winding (traditionally called the field, but here both windings can be outputs) is connected to 3-phase AC power at variable frequency. This input power is adjusted in frequency and phase to compensate for changes in speed of the turbine.
2. Double-fed induction generator (DFIG), a generating principle widely used in wind turbines. It is based on an induction generator with a multiphase wound rotor and a multiphase slip ring assembly with brushes for access to the rotor windings. It is possible to avoid the multiphase slip ring assembly, but there are problems with efficiency, cost and size. A better alternative is a brushless wound-rotor doubly-fed electric machine
Another type, you should try, is Permanent Magnet Generator - free energy.
Find out about free energy here:

Finally, some documents about wind turbine generators to help you research and apply:

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