A piconet system for building high-efficiency microgrids

Abstract

The invention belongs to the technical field of new energy electric power, and in particular relates to a piconet system for constructing an efficient microgrid. The technical solution proposed by the present invention is composed of a plurality of power regulation and conversion systems, power generation units, power storage units and power loads, and each power regulation and conversion system is combined with the power generation unit, power storage unit and power consumption of the same level. The loads are connected, and then multiple power regulation and conversion systems are connected step by step to form a piconet system, which can operate independently and be controlled and shared. The piconet system is connected to the microgrid or the large grid as an integrated node system of power generation, power supply, and storage in the microgrid and the large grid. Multiple power generation units can be self-generated and self-used to achieve full autonomy, and can be interconnected and networked. Controlled grid connection and sharing, realized the reasonable regulation and control of the overall power generation and consumption, optimized the adjustment and deployment of various electric power, and realized the controlled grid connection and resource sharing among subsystems while giving priority to the use of new energy power. Distributed power generation and power supply can more effectively resolve system risks and greatly improve the reliability and security of the microgrid system.

Description

technical field [0001] The invention belongs to the technical field of new energy electric power, and in particular relates to a piconet system for constructing an efficient microgrid. Background technique [0002] In recent years, new energy power has been valued and supported by governments of various countries, and its application has become more and more extensive. After years of research and application practice, the industry has unanimously confirmed that new energy power systems such as photovoltaics and wind power are gradually becoming mature and widely known, and gradually forming emerging energy and power markets; Electricity belongs to distributed renewable energy, which spreads all over nature and is easy to adopt, but its energy density is relatively low. High-power electric power generation requires a suitable site, and the electric power is unstable, which is an intermittent power source. Distributed microgrid mode is the technical direction, and its details...

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Problems solved by technology

[0007] However, the new energy distributed micro-grid currently on the market, its existing technology and system implementation methods are mainly distributed power generation and centralized power supply, which is the miniaturization of the large power grid. The advantages cannot be fully utilized, and there are obvious defects; such as: relying on the support of the power grid, increasing the investment in high-voltage power transformation, transmission power and secondary power transformation; increasing the consumption from power generation to power consumption; regulation, which increases the difficulty of regulation and storage management; and the system risk cannot be resolved due to concentration

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