Multi-energy complementary microgrid system based on reverse coordinated regulation

A micro-grid and coordinated control technology, applied in energy storage, photovoltaic power generation, AC network load balancing, etc., can solve the problems of power supply fluctuation and instability of new energy power generation micro-grid, and achieve fast and effective power fluctuation, stable power supply, Solve the effect of power supply fluctuation and instability

Active Publication Date: 2021-04-16
南京国电南自新能源工程技术有限公司 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a multi-energy complementary micro-grid system based on reverse coordinated regulation, so as to solve the defects of fluctuation and instability of power supply of new energy power generation micro-grids

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  • Multi-energy complementary microgrid system based on reverse coordinated regulation
  • Multi-energy complementary microgrid system based on reverse coordinated regulation

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Embodiment Construction

[0015] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0016] Such as Figure 1 to Figure 2 As shown, the multi-energy complementary microgrid system based on reverse coordinated regulation mainly includes: microgrid control system 1, reverse coordination control device 2, energy storage power coordination communication line 3, system communication network line 4, and microgrid power main line 10. Photovoltaic power generation unit subsystem 11, photovoltaic inverter 12, photovoltaic inverter output current sampling sensor 13, photovoltaic step-up transformer 14, photovoltaic DC power line 15, photovoltaic inverter AC power line 16, coordinated energy storage battery string 21. Coordinated bidirectional energy storage converter 22, coordinated energy storage step-up transformer 24, coordinated energy ...

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Abstract

The invention discloses a multi-energy complementary microgrid system based on reverse coordinated regulation. The system includes a microgrid control system, a reverse coordination control device, energy storage power coordination communication lines, system communication network lines, power loads, Electric transformer, electric load power line, micro-grid power main line, and photovoltaic power generation unit subsystem network, cooperative energy storage unit subsystem network, independent energy storage unit subsystem network, diesel generator set network respectively connected to said micro-grid power main line , current monitoring network, charging and discharging power coordinated regulation network, and microgrid control network. This kind of multi-energy complementary microgrid system based on reverse coordinated regulation enables the energy storage unit subsystem to perform reverse power complementation with respect to the power of new energy output. Coordinated output, quickly and effectively stabilize the power fluctuation of power supply, achieve stable power supply within the set output margin range, and solve the technical defects of fluctuation and instability of new energy power generation micro-grid power supply.

Description

technical field [0001] The invention belongs to the technical field of new energy micro-grid applications, and in particular relates to a multi-energy complementary micro-grid system based on reverse coordinated regulation. Background technique: [0002] Since wind, light, and tidal power generation are all renewable energy sources, they are the optimal path for energy transformation and are widely used and promoted; however, wind, light, and tidal power generation is affected by natural conditions such as weather, and the generated power has fluctuations Intermittent, can not normally and stably supply power to user loads, and it is converted into the form of power required by users through power electronic converters, and power generation and power supply in multi-power grids. Its consistency and power balance control are the key points of multi-power micro-grids The difficulty is a major technical challenge for the composition and control of the microgrid system. [0003...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/32H02J3/24
CPCH02J3/24H02J3/32Y02E10/56Y02E70/30
Inventor 周锡卫曹海英温烨婷杨丰艺党震宇孙增献
Owner 南京国电南自新能源工程技术有限公司
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