A wireless network-based microgrid coordination control system and method

A technology of wireless network and coordination controller, applied in the field of wireless network-based micro-grid coordination control system, can solve problems such as power imbalance of micro-grid, achieve the effect of maintaining power balance and accelerating load power

Active Publication Date: 2018-12-25
WUHAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Otherwise, the voltage and frequency deviation of the microgrid may exceed the allowable range and cause the deterioration of power imbalance

Method used

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  • A wireless network-based microgrid coordination control system and method
  • A wireless network-based microgrid coordination control system and method
  • A wireless network-based microgrid coordination control system and method

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Embodiment Construction

[0051] In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the implementation examples described here are only used to illustrate and explain the present invention, and are not intended to limit this invention.

[0052] In terms of specific implementation, a wireless network-based micro-grid coordination control method is described here as figure 1 The microgrid system shown is a specific implementation object, and the coordinated control method involved in the present invention is described in detail.

[0053] The technical solution of the system of the present invention is a wireless network-based micro-grid coordination control system, which is characterized in that it includes: a coordination controller, a first wireless communication module, a second wireless co...

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Abstract

The invention provides a micro-network coordination control system and method based on a wireless network. The system of the invention comprises a coordination controller, a first wireless communication module, a second wireless communication module, a third wireless communication module, a fourth wireless communication module, a fifth wireless communication module circuit breaker, a transformer,a superconducting fault current limiter, a common coupling point, a superconducting magnetic energy storage device and a photovoltaic distributed power source. The method of the invention collects three-phase voltages of a common coupling point through a coordination controller through a wireless communication mode, and subjects the three-phase voltages of the common coupling point to Clark transformation. The coordination controller judges the state of the microgrid by the three-phase voltage of the common coupling point and the voltage of the common coupling point after Clark transformation.The coordination controller coordinates and controls the micro-grid by wireless communication according to the state of the micro-grid. Compared with the prior art, the invention can improve the transient performance of the microgrid under the short-circuit fault.

Description

technical field [0001] The invention belongs to the field of electric power system and automation, and in particular relates to a wireless network-based micro-grid coordination control system and method. Background technique [0002] The micro-grid is composed of micro-power sources, loads, energy storage devices, etc., and the micro-power sources and energy storage devices are controlled by power electronic components. The system operates under a certain control strategy. The microgrid can be connected to the main grid through the Point of Common Coupling (PCC) and run in the grid-connected operation mode, or it can be cut off from the main grid to switch to the island operation mode. . As the microgrid penetration rate and switching power continue to increase, it is particularly important to ensure the stable operation of the microgrid and its transient performance under fault conditions. [0003] The application of superconducting power devices in power systems has attr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38H02J3/28H02J3/24
CPCH02J3/383H02J3/385H02J3/24H02J3/28H02J3/388Y02E10/56Y02E40/10Y02E40/60Y02E70/30
Inventor 陈磊李国城田昕
Owner WUHAN UNIV
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