You don't need a voltage regulator, it can't be used with a permanent magnet alternator and even if you can use it with your alternator it will cause trouble.
The car type regulator works by reducing alternator output to keep the battery below 14v. If you do this with a wind generator it will run off load and will run at high speed which at best will be noisy and at worst dangerous.
Until the battery is fully charged, it will hold the alternator volts down to below 14v so you don't need to do anything until the battery is charged. The normal procedure is to use a dump load that loads the battery when it is fully charged and prevents the volts exceeding 14v.
Look up dump regulator or shunt regulator to find out what you need.
Flux