A real-time scheduling method of active power in microgrid based on envelope control

A real-time scheduling and envelope technology, applied in the direction of AC network circuits, electrical components, circuit devices, etc., to ensure safe operation, avoid frequent triggering, and meet the effects of rapid response

Active Publication Date: 2018-07-17
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, the problem of real-time power balance control is also a major problem in current practical engineering.

Method used

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  • A real-time scheduling method of active power in microgrid based on envelope control
  • A real-time scheduling method of active power in microgrid based on envelope control
  • A real-time scheduling method of active power in microgrid based on envelope control

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Embodiment Construction

[0032] The present invention will be further described below. But the content of the present invention is not limited thereto.

[0033] Applying the real-time active power dispatching method of the microgrid based on the envelope control proposed by the present invention is based on the planned dispatching results and according to the real-time monitoring data during the operation of the microgrid to formulate a real-time dispatching strategy. First, you need to obtain parameters and data including:

[0034] Operating parameters of each power supply in the microgrid;

[0035] The results of the day-ahead planning and dispatching of the microgrid;

[0036] The current operating status of the microgrid.

[0037] Step 1: According to the scheduling results of the day-ahead plan, calculate the envelope range of real-time control:

[0038] 1) For the grid-connected operation status of the microgrid, since the goal of real-time scheduling is to control the power of the grid-conn...

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Abstract

The invention relates to a micro-grid active power real-time scheduling method based on envelope control, comprising the following steps: using a micro-grid planned scheduling result as reference, establishing a real-time control envelope of grid-connection point exchange power or main power supply power; calculating real-time adjustable capacities of a controllable distributed power supply, a renewable energy source power supply and an energy storage device according to capacity parameters of the various devices and real-time state data obtained by real-time monitoring; establishing a heuristic real-time scheduling strategy based on envelope control, and starting the real-time scheduling strategy when the power of the grid-connection point or the main power supply exceeds the range of the envelope. The invention provides an effective real-time scheduling method for safe operation of a micro-grid in grid-connection and isolated-grid operation states.

Description

technical field [0001] The invention relates to the field of real-time operation dispatching of a microgrid in a power system, in particular to a method for real-time active dispatch of a microgrid in grid-connected and isolated states. Background technique [0002] With the global energy and environmental issues becoming prominent, wind energy, solar energy and other renewable energy sources have been greatly developed. At the same time, microgrid, as a comprehensive integration technology including renewable energy and other distributed power sources, has received extensive attention. The microgrid has flexible operating characteristics, can be connected to the grid or run in an isolated manner, and can meet the needs of local users for electricity and heat at the same time. Microgrid improves the reliability of power supply of distributed power generation system, realizes the integrated operation of distributed power supply and load, reduces the pollution emission of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/48H02J3/38
CPCH02J3/382H02J3/388H02J3/48
Inventor 王建学张忠祝振鹏刘世民
Owner XI AN JIAOTONG UNIV
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