Micro hydropower generator
Micro hydro generator/alternator specification
The micro hydro generators include asynchronous generators, synchronous generator, and permanent magnet generator, and it also with carbon brush generator and brushless alternator, which is divided into single-phase and three-phase generator.
Asynchronous generator for micro water power turbine system is using a motor and a modified condenser to assemble a generator. With unstable voltage and inconvenient operation, voltage instability is bad for household appliances, so it basically is not adopted now; some European customer will also adopt it as bigger mini hydropower project, but it is really not the trends now.
Common synchronous generator with rectifier will supply the rectified alternating current to the stator magnetic field of the generator, its effect is better than asynchronous generator, but now most of micro hydro generator with the carbon brush and slip ring is not enclosed structure, this is carbon brush generator, it easily be affected with damp, we need to change in the carbon brush regularly, and maintain the slip ring. All this work needs some knowledge of electric.
For easy maintenance, Permanent magnet generator is one of the ideal units, it does not slip ring rectifier vulnerable elements such as carbon brush, with totally enclosed structure, dustproof and waterproof. For normal use and maintenance, it basically need not maintenance, its reliability is high, for system below 5kw, normal permanent magnet generator with low efficiency around 70%, for project below 200kw, HS Dynamic Energy also offer high efficiency rare-earth permanent magnet generator with efficiency up to 94%, this is most suitable for off-grid and backward area users without enough technical knowledge on electric.
Brushless generator is usually for system more than 30kw, it will be usually used for bigger system, HS Dynamic Energy will also offer this for our client based on their demand of brushless excitation generator above 10kw.
Single-phase generator sending electricity by two wires, sending cost is low, but is only applicable to small units (below 10kw), some home users can choose this system.
Three-phase generator with high efficiency, sending electricity by four wires, three phases wires and a neutral line, units usually more than 10kw, and some motorized facilities have to choose this generator, some farm micro hydropower users, mill micro hydropower plant users and mining electricity users will choose this alternator to meet their equipments.
Now you can buy the whole micro hydro turbine generator system from HS Dynamic Energy’ products here.