4. Micro gas turbine power generation
The micro gas turbine power generation system is mainly composed of a micro gas turbine, a generator, and a digital power controller. It uses gasoline, diesel, natural gas, methane, etc. as fuel. Among them, the micro gas turbine is equipped with a regenerative cycle, which greatly improves the energy utilization efficiency. The system has a series of advantages such as light weight, small size, multi-fuel, low noise, low fuel consumption, less pollution, high reliability, and long life. It is a distributed power source widely used at present.
5. Biomass power generation
Biomass energy is a manifestation of solar energy, which directly or indirectly comes from the photosynthesis of green plants. Biomass power generation uses the biomass energy of biomass for power generation, mainly using agricultural, forestry and industrial wastes and garbage as raw materials, such as fuelwood, agricultural and forestry crops, domestic garbage and sewage, etc., and converting them into energy forms that can drive generators, such as gas, oil, alcohol, etc., and then generate electricity in accordance with general power generation technology. The main forms of power generation include direct combustion power generation of agricultural and forestry waste, gasification power generation of agricultural and forestry waste, biogas power generation, waste incineration power generation, landfill gasification power generation, etc. Because biomass energy is widely distributed, abundant in total, inexhaustible and inexhaustible, and can turn waste into treasure, biomass power generation has received extensive attention at home and abroad in recent years, and its promotion and application are also relatively successful.
6. Ocean power generation
Ocean energy refers to the renewable energy attached to the seawater, mainly including tidal energy, wave energy, ocean current energy, seawater temperature difference energy, seawater salinity energy and other energy forms, which can be used for power generation. Ocean energy is widely distributed, rich in reserves, clean and pollution-free, but low energy density and strong regionality make development difficult and have certain limitations. On the whole, ocean energy power generation is still in the initial stage of development, and currently the main technologies that have been put into practical use are tidal power generation and small-scale wave power generation. Among them, the tidal power generation technology is relatively mature and the scale of application is relatively large. Wave energy power generation converts the kinetic energy of sea waves up and down into electrical energy. The scale is small and the technology needs to be improved.
7. Geothermal power generation
Geothermal power generation is a new type of power generation technology that uses underground hot water and steam as power sources. The principle is similar to that of thermal power generation. First, geothermal energy is converted into mechanical energy, and then mechanical energy is converted into electrical energy, but it does not require fuel and boilers. Compared with the volatility of solar and wind energy, the output power of geothermal power generation is more stable and reliable. Compared with hydropower, thermal power, and nuclear power, its construction investment is low, operating cost is low, equipment use time is long, and environmental pollution can be greatly reduced.
8. Small hydropower
Small hydropower refers to small hydropower stations and their supporting small power grids. In terms of form, there are four basic forms of small-scale hydroelectric power generation: diversion type, dam type, hybrid type and pumped storage type.
Different types of distributed power sources have different power generation principles and equipment, each with unique technical characteristics. Usually in practical applications, based on system stability and power demand, some energy storage devices, such as battery energy storage, pumped water energy storage, super capacitor energy storage, superconducting magnetic energy storage, flywheel energy storage and compressed air energy storage, etc., need to be added to the distributed power generation system to store a certain amount of electrical energy to deal with emergencies or load changes.