發(fā)布時間：2018-04-17 01:20

  本文選題：微網協調控制 + 監(jiān)控　； 參考：《電子科技大學》2014年碩士論文

【摘要】：在智能電網中,應當重點關注的部分是微網。對微電網進行開發(fā)可以推進分布式電源的有效利用,并且將微電網進行延伸,可以和更多可再生清潔能源進行大規(guī)模的銜接。該平臺在配電過程中和傳統的電網不同,它具有主動配電形式,這是將傳統電網很好過渡為新型智能電網的新形式。本文將設計一種適合本平臺的協調控制策略,并實現微網監(jiān)控平臺的軟件設計。根據風力發(fā)電系統、光伏發(fā)電系統、儲能系統的各模塊所存在的約束條件,設計出能夠維持一級負載正常運行,且保護蓄電池不過充過放的控制策略。該監(jiān)控平臺主要實現上下位機數據和控制信號通信功能、數據分析功能,并設計出友好的人機交互界面。為了利于實驗人員對歷史數據進行查閱并進行故障檢修,本平臺還設計了利用數據庫進行數據存儲和查詢功能。具體內容如下:(1)研究與設計了基于蓄電池荷電狀態(tài)協調控制策略。針對多能源的各自發(fā)電形式、發(fā)電能力、發(fā)電時機進行研究,討論風力機和光伏發(fā)電的功率與負載功率之間能量分配問題,根據各類問題進行分類總結,設計了“基于蓄電池荷電狀態(tài)協調控制策略”,并用仿真實驗驗證該控制策略是否能達到協調平臺發(fā)電功率和負載用電功率動態(tài)平衡的目的。(2)在上位機模擬風機發(fā)電特性曲線。通過對直流電機模擬風機發(fā)電的機理學習,搭建風力機發(fā)電的功率-風速等曲線圖,在特定的風速情況下,計算出模擬轉速與轉矩,將模擬轉速與轉矩傳輸給下位機,下位機再傳輸到硬件設備進行模擬。(3)制定適合本平臺上下位機的通信規(guī)約。針對該平臺是在LabVIEW上進行監(jiān)控,制定適合本平臺上下位機的通信規(guī)約,根據通信規(guī)約設計一個數據分析模塊,該模塊負責對數據進行分析并提取需要控制的信息,將下一步的控制命令通過上位機發(fā)送給下位機。(4)搭建上位機和數據庫銜接模塊。為了利于長期的控制和檢測,上位機和數據庫連接,將上位機上的重要數據存儲在數據庫內,便于查看研究或者出現故障之時進行數據查詢和分析。本論文的工作內容依托于973項目,為該項目的推進提供了實驗室研究平臺,對保證973平臺順利推進具有重要意義。
[Abstract]:In the smart grid, the focus should be on the microgrid.The development of microgrid can promote the effective use of distributed generation and extend the microgrid, which can be connected with more renewable clean energy on a large scale.The platform is different from the traditional power grid in the process of distribution, it has the form of active distribution, which is a new form of transition from the traditional power grid to the new smart grid.In this paper, a coordinated control strategy suitable for this platform is designed, and the software design of microgrid monitoring platform is realized.According to the constraints of the modules of wind power system, photovoltaic system and energy storage system, a control strategy which can maintain the normal operation of the primary load and protect the battery from overloading is designed.The monitoring platform mainly realizes the communication function of data and control signal and the data analysis function of the upper and lower computer, and designs a friendly man-machine interface.In order to facilitate the experimenter to consult the historical data and troubleshoot, the platform also designed the database for data storage and query functions.The main contents are as follows: 1) the coordinated control strategy based on the charge state of battery is studied and designed.In this paper, the energy distribution between power and load of wind turbine and photovoltaic power generation is discussed and summarized according to various kinds of problems, based on the research of their own generation forms, generation capacity, generation timing, and energy distribution between wind turbine and photovoltaic power generation.This paper designs a coordinated control strategy based on the charging state of the battery, and verifies whether the control strategy can achieve the purpose of coordinating the dynamic balance of generating power and load power on the upper computer to simulate the generation characteristic curve of the fan.By studying the mechanism of DC motor simulating fan power generation, the graph of power and wind speed of wind turbine is built. Under the specific wind speed, the simulated rotational speed and torque are calculated, and the simulated speed and torque are transmitted to the lower machine.The communication protocol suitable for the upper and lower computer of this platform is established.In view of the monitoring of the platform on LabVIEW, the communication protocol suitable for the upper and lower computers of the platform is established. According to the communication protocol, a data analysis module is designed, which is responsible for analyzing the data and extracting the information to be controlled.The next control command is sent to the lower computer through the upper computer.In order to facilitate long-term control and detection, the host computer and the database connection, the host computer important data stored in the database, easy to view research or when the failure of data query and analysis.The work of this paper is based on 973 projects, which provides a laboratory research platform for the project, which is of great significance to ensure the smooth progress of 973 platform.
【學位授予單位】：電子科技大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TM76

【參考文獻】

相關期刊論文 前1條

1 劉建偉;徐興元;龐京玉;邢靜宇;;專家控制系統研究進展[J];微型機與應用;2005年11期

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本文編號：1761438