Micro Hydropower

Generally, the installed capacity below 100KW is called micro-hydro system, DLLD can supply various tyes of micro-hydraulic turbine and generator units to satisfy the demand from electric power consumers in small load areas. 

Besides, DLLD Power also has the complete electromechanical equipment solutions for mini and small hydropower plants up to 10MW, through our recommended partners in China.

You can select the suitable type of the micro-hydraulic turbine based on local water head and flow rate as above curve shows, DLLD could design and custom make special turbines for specific site conditions. Generally, there are mostly below types turbine are used for micro hydropower system, such as  Turgo turbine (or Pelton turbine) for high head sites, Tubular turbine, Francis turbine and crossflow type turbine for medium head sites, and axial flow turbine like Propeller, Kaplan, and also are suitable for low head sites. We also custom make Barrel type turbine, Submersible type turbine and Floating type turbines for special site conditions, like canal, mills, fish farms, stream and creek hydropower application. 

In additional, to help you understand our hot sales micro hydro system better, we summarize the conventional models below 30kW for your reference.

If you have any specific project to proceed, please do not hesitate to contact us freely to searching for best selection based on your site condition, please send your basic data such as Net Head (m), Design Flow (l/s), Required output Power (kW), Required Voltage(V), Frequency (50Hz or 60Hz), Off-Grid or On- Grid etc as more more clear as possible. Our general inquiry email address is info@dlldpower.com

Turgo turbine has the key feature of simple structure, small size, light weight, high efficiency, easy install and reliable perform. It is very suitable for small load in mountain areas off grid system. Turgo turbine have two different structures single nozzle and double nozzles. The runner of a Turgo turbine is made of outer ring, inner ring and buckets. Inlet valve, turbine, Generator (rare earth permanent magnet synchronous generator) and control panel are mounted together. Please see the below detail diagram and photos of the Turgo Series.

The Tubular type turbine is made of water chamber, runner, distributer and draft tube,which suits to low water head and large water flow, could be design as both vertical type and horizontal type. Please see the below detail diagram and photos of the GD Series.

Francis type turbine is suitable for water power station with medium or low water head and flow rate. It is divided into vertical type and horizontal type. In general, vertical type is often used in micro water power station. Suitable for 5-40m head medium head sties.

The Propeller turbine is consist of PMG and vertical shaft turbine, suitable for extra low head sites, the turbine will be installed into the volute chamber. It has compact structure, attractive appearance and no need the excitation device.

The submersible turbine is design under France EDF financial support in 2004, which could be used in Europe mills and Korean seawater fish farms, the generator is located inside of turbine which could waterproof well. DLLD has build up a 12kW test station in Xihua University located in Chengdu city of China. 

The Barrel turbine is specially developed for USA low head sites based on Propeller turbine, much more easy to install and simple to maintains thought cost is bit higher. 

The float bucket turbine is suitable for high flow without water head, it is a fish friendly turbine design, but the turbine volume is bit large and transport cost is bit high.

Key Features of Micro Hydro System

1. Micro-capacity: it is appropriate for scattered construction and utilization, especially for electric power Consumers of small load in mountainous and terrace areas;
2. Economizing investment: only a small amount of one Time investment is needed, therefore, it is convenient; for self-construction, self-management and self-utilization
3. Short construction period: it can be constructed and put into operation in a period;
4. Appropriate technology: it is easy to install, operate and maintain due to its simple structure and a few components of the unit
5. Product seriation: it is with the characteristics of good Performance, the longevity of service, few wear out parts, and Ease of replacement.

DLLD Advantages

1. Small size, lightweight, and reasonable integrated design, for stand alone system we use PMG (rare earth permanent magnet synchronous generator) for super reliable performance and simple structure..
2. Equipped with automatic voltage and frequency regulation control function, combines the microcomputer quasi-synchronizing automatic grid controller and generator comprehensive protector synchronous self-locking equipment. It could be combined with the grid by manual or automatically, and multifunctional protection operation, and also has the advantage of simple structure, easy installation, and maintenance, flexibly using.
3. It can be directly used as a power source for lighting, watching TV, and dragging micro agricultural and by-product processing machinery for farmers.
4. It combines a micro water turbine, generator, voltage and frequency stabilization controller, transmission device, etc. integrated together, with reliable performance and low cost of use.
5. It is an environmentally friendly product, with obvious social and economic benefits.
6. If matching our storage furnace, it could be an effective way to realize the small hydropower instead of firewood, as it can solve the big problems of rural living.

Micro Hydropower schematic diagram

The typical micro hydro generator station is as above, which consists of civil work (inlet conduit construction, powerhouse and drain etc),the micro hydro generator, electrical wires and the users wires. The work process is as follows: Collecting the water of stream by reservoir, the water inflow the pressure poor through the inlet conduit, the go into the micro hydro generator which is installed in the powerhouse through the inlet pipeline, force the runner to moving, which drives the generator to generate electricity.At eh same time, the adjustment machine auto adjust the voltage and the frequency to meet the requirements for power supply, and then the user can use the electricity transmitted electrical wires.

Microhydropower can be one of the most simple and consistent forms or renewable energy on your property. If you have water flowing through your property, you might consider building a small hydropower system to generate electricity. Microhydropower systems usually generate up to 100 kilowatts of electricity. Most of the hydropower systems used by homeowners and small business owners, including farmers and ranchers, would qualify as microhydropower systems. But a 10-kilowatt microhydropower system generally can provide enough power for a large home, a small resort, or a hobby farm.

A micro hydropower system needs a turbine, pump, or waterwheel to transform the energy of flowing water into rotational energy, which is converted into electricity. Our Micro-hydro Generator is integrated with turbine and a set of direct connected AC single-phase / three-phase generator. With the characteristics of small body, lightweight, simple structure, reliable operation and convenient assembly, and serving as the power source of lighting, TVs and recorders, it is most suitable for the households in mountain areas with scattered and small hydroelectric sources. The consumers can do easily themselves the installation and operation. This product has been thoroughly strengthened in the special technical measures to good quality, stable function and easy operation for women and children. Much less investment may add more happiness to your family.


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