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Industrial zone type wind-photovoltaic storage and charging micro grid system

A technology of wind power generation system and photovoltaic power generation system, applied in the field of micro grid, can solve the problems of high cost, single power generation, energy storage system, low efficiency, etc., and achieve the effects of high price, flexible operation mode and long service life

Pending Publication Date: 2018-11-30
清远电力规划设计院有限公司
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AI Technical Summary

Problems solved by technology

[0009] However, one of the defects in the existing micro-grid construction process is that in the process of using grid-connected power generation or isolated grid power supply, most of them use a single power generation and energy storage system, which has low efficiency and high cost.

Method used

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  • Industrial zone type wind-photovoltaic storage and charging micro grid system
  • Industrial zone type wind-photovoltaic storage and charging micro grid system
  • Industrial zone type wind-photovoltaic storage and charging micro grid system

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Embodiment 1

[0045] Such as figure 1 with figure 2 As shown, an industrial area-type wind-solar-storage-charge micro-grid system includes a main grid power supply 1, a micro-grid main line 2, a wind power generation system, a photovoltaic power generation system, an energy storage system, and a load system. The main grid power supply 1 and The main line of the microgrid 2 is electrically connected through the grid-connected switch 3, and the wind power generation system, the photovoltaic power generation system, the energy storage system, and the load system are connected in parallel to the main line of the microgrid 2;

[0046] The energy storage system includes a lead-acid battery energy storage subsystem 4 , a lithium battery energy storage subsystem 5 , and a supercapacitor energy storage subsystem 6 connected in parallel.

[0047] In the energy storage system, three energy storage methods of lead-acid battery energy storage, lithium battery energy storage and super capacitor energy ...

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Abstract

The invention belongs to the technical field of micro grids, and discloses an industrial zone type wind-photovoltaic storage and charging micro grid system, comprising a main grid power source, a micro grid main line, a wind power generation system, a photovoltaic power generation system, an energy storage system, and a load system, wherein the main grid power source and the micro grid main line are electrically connected through a grid-connected switch, and the wind power generation system, the photovoltaic power generation system, the energy storage system, and the load system are connectedin parallel to the micro grid main line; the energy storage system comprises a lead acid battery energy storage subsystem, a lithium battery energy storage subsystem, and a super capacitor energy storage subsystem which are connected in parallel. The object of the invention is to provide an industrial zone type wind-photovoltaic storage and charging micro grid system, which can effectively improveenergy storage efficiency and reduce energy storage costs by using a lead acid battery energy storage subsystem, a lithium battery energy storage subsystem and a super capacitor energy storage subsystem, and can effectively improve the comprehensive utilization of natural energy in the zone by cooperating with various forms of power generation systems.

Description

technical field [0001] The invention relates to the technical field of micro-grids, in particular to an industrial-area wind-solar-storage-charge micro-grid system. Background technique [0002] Microgrid is now a subdivision field of power system that has been studied more. Microgrid, also translated as microgrid, refers to a small power generation and distribution system composed of distributed power sources, energy storage devices, energy conversion devices, related loads, monitoring and protection devices. It is a system that can realize self-control, protection and The management autonomous system, as a complete power system, relies on its own control and management energy supply to realize functions such as power balance control, system operation optimization, fault detection and protection, and power quality management. It can operate in parallel with the external grid or in isolation. The proposal of microgrid aims to realize the flexible and efficient application ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38H02J3/28H02J3/01B60L11/18
CPCH02J3/383H02J3/386H02J3/01H02J3/28H02J3/388Y02E70/30Y02E10/56Y02E10/76Y02P80/20Y02T10/70Y02E40/40
Inventor 张树宏张宏阳王玥谭开平謝元龙潘国元
Owner 清远电力规划设计院有限公司
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