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Method for realizing real-time database for miniature power grid intelligent terminal

An intelligent terminal and micro grid technology, which is applied in the fields of electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as inapplicability to micro grid systems, and achieve the effect of meeting high time limit requirements and ensuring search efficiency.

Inactive Publication Date: 2014-12-03
国网冀北电力有限公司管理培训中心 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional large grid SCADA-EMS (distribution network and dispatch automation) technology is not suitable for micro grid systems

Method used

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  • Method for realizing real-time database for miniature power grid intelligent terminal
  • Method for realizing real-time database for miniature power grid intelligent terminal
  • Method for realizing real-time database for miniature power grid intelligent terminal

Examples

Experimental program
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Effect test

Embodiment Construction

[0025] figure 1 In a typical micro-grid, the connection relationship between the smart terminal of the micro-grid and other grid equipment is shown. The micro-grid smart terminal can be connected with various grid equipment in the micro-grid, such as photovoltaic inverters, wind turbine inverters, energy storage systems, active filters, smart meters, bus protectors, etc. It is used to collect real-time data information of photovoltaic inverters, wind turbine inverters, energy storage systems, active filters, smart meters, busbar protectors and other equipment. In addition, the micro-grid smart terminal can also be connected to the circuit breaker, collect the state of the circuit breaker by collecting the input value of the switch, and control the action of the circuit breaker by outputting the output value of the switch.

[0026] figure 2 It is a schematic diagram of the overall structure of the micro-grid smart terminal. In an embodiment of the micro-grid intelligent ter...

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Abstract

The invention discloses a method for realizing a real-time database for a miniature power grid intelligent terminal. The method comprises the following steps of: mapping data sheets, regions and records forming a real-time database to internal storages of the miniature power grid intelligent terminal in a file mapping mode, and forming a database entity; and storing the head address of a tablespace and the address of a record pointer in a corresponding B+ tree. The real-time database generated according to the method can operate in the miniature power grid intelligent terminal which is only provided with an embedded processor and few internal storages; the data access of the real-time database can be kept in a microsecond speed; and complex and dynamic variation data can be stored in the real-time database.

Description

technical field [0001] The invention relates to a method for realizing a real-time database, in particular to a method for realizing a real-time database by using a file mapping method to generate a database entity in view of the technical characteristics of an intelligent terminal of a micro-grid, and belongs to the technical field of a smart grid. Background technique [0002] Micro-grid, also known as micro-grid, 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. , protection and management of autonomous systems. Micro-grids can operate in parallel with the large grid or in isolation, and are an important part of the smart grid. [0003] Microgrids have a dual role. For the large power grid, as a smart load that can be changed in size, the micro-grid provides a dispatchable load for the local power system, can respond within...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30
Inventor 林昌年王庆平张鹏潘正魁徐际强张毅冯斌马晓伟于亚伟
Owner 国网冀北电力有限公司管理培训中心
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