【摘要】：礦井供電的特殊性決定了供電系統(tǒng)必須合理準(zhǔn)確，以便保證礦井的安全生產(chǎn)。礦井生產(chǎn)規(guī)模增大造成礦井供電系統(tǒng)日益復(fù)雜，，設(shè)計計算工作量大。當(dāng)?shù)V井供電系統(tǒng)發(fā)生變化時，還需重新進(jìn)行供電設(shè)計。因此設(shè)計開發(fā)一款有助于減輕礦井供電設(shè)計工程師工作負(fù)擔(dān)、提升工作效率、提高供電設(shè)計準(zhǔn)確性的系統(tǒng)具有十分重要的意義。經(jīng)文獻(xiàn)查證，礦井供電輔助設(shè)計方案共有四種，分別是基于Excel的供電輔助設(shè)計方法、基于GIS平臺的供電輔助設(shè)計系統(tǒng)、基于AutoCAD平臺的供電輔助設(shè)計系統(tǒng)和基于Web的在線礦井供電設(shè)計軟件。以上方法都可以滿足礦井供電設(shè)計計算的基礎(chǔ)需求，但在軟件的操作便捷性、界面美觀性無法令人滿意。 經(jīng)過綜合對比礦井供電輔助設(shè)計系統(tǒng)的四種開發(fā)方案，本系統(tǒng)選擇在AutoCAD平臺上進(jìn)行開發(fā)工作。本文綜合對比了AutoCAD的四種二次開發(fā)工具：Autolisp、ObjectArx、VBA及.NET的優(yōu)缺點，最終選用了更加適合系統(tǒng)開發(fā)的.NET二次開發(fā)工具。 本供電輔助設(shè)計系統(tǒng)從實際礦井供電設(shè)計計算流程出發(fā)，目的在于設(shè)計開發(fā)一款能夠輔助礦井供電設(shè)計計算、操作便捷和界面美觀的系統(tǒng)。本系統(tǒng)引入了功能模塊獨立和圖形數(shù)據(jù)分離的設(shè)計思路，將礦井供電設(shè)計計算的8個流程分到三個功能層：礦井供電系統(tǒng)圖繪制層、數(shù)據(jù)支持層和礦井供電輔助設(shè)計層。礦井供電系統(tǒng)圖繪制層的目的是輔助供電設(shè)計工程師繪制礦井供電系統(tǒng)圖。工程師可以使用本功能層中的礦井電氣圖專用符號工具欄，向AutoCAD工作空間插入設(shè)備圖元，之后建立設(shè)備圖元之間電氣連接，并雙擊設(shè)備圖元顯示窗體。數(shù)據(jù)支持層采用了以SQL Server關(guān)系數(shù)據(jù)庫為中心的數(shù)據(jù)庫建設(shè)方案。數(shù)據(jù)支持層包含兩個數(shù)據(jù)庫，分別是設(shè)備數(shù)據(jù)庫存儲礦井常用設(shè)備的參數(shù)信息，graduate數(shù)據(jù)庫存儲設(shè)備圖元插入坐標(biāo)、電氣節(jié)點坐標(biāo)、方案號、元件編號、元件庫名稱、設(shè)備圖元參數(shù)及計算結(jié)果等信息。此外，數(shù)據(jù)支持還包括了設(shè)備參數(shù)輸入窗體和設(shè)備選型與校驗窗體，窗體程序可以完成供電設(shè)計所需的計算流程。礦井供電輔助設(shè)計層包含短路點位置選擇、短路電流計算和整定計算報告輸出功能。礦井保護(hù)裝置的整定按設(shè)備安裝處最大三相短路電流及保護(hù)線纜末端最小兩項短路電流，因而提供了短路點位置選擇功能。供電設(shè)計員工可以在礦用隔爆電動機(jī)圖元、礦用隔爆移動變電站圖元和礦用隔爆高壓真空配電箱圖元處選擇放置短路點，之后進(jìn)行短路電流計算。本功能層包含了整定計算報告輸出功能，其原理是建立輸出模板并插入書簽，數(shù)據(jù)庫數(shù)據(jù)按照書簽位置插入內(nèi)容即可完成報告輸出功能。為了驗證本系統(tǒng)的實用性如何，本文對某礦井綜采面供電系統(tǒng)進(jìn)行了設(shè)計計算，結(jié)果表明礦井供電輔助設(shè)計系統(tǒng)計算準(zhǔn)確，能夠滿足礦井供電設(shè)計的需要。
[Abstract]:The particularity of mine power supply determines that the power supply system must be reasonable and accurate in order to ensure the safety of mine production. The increasing scale of mine production makes the power supply system of mine more complex and the workload of design and calculation is large. When the mine power supply system changes, it is necessary to redesign the power supply design. Therefore, it is of great significance to design and develop a system which is helpful to lighten the work burden of mine power supply design engineers, improve working efficiency and improve the accuracy of power supply design. According to the literature review, there are four kinds of auxiliary design schemes for mine power supply. They are the power supply assistant design method based on Excel and the power supply assistant design system based on GIS platform. Power supply aided design system based on AutoCAD platform and online mine power supply design software based on Web. The above methods can meet the basic requirements of mine power supply design and calculation, but the operation convenience and interface aesthetics of the software are not satisfactory. After comprehensive comparison of four development schemes of auxiliary design system for mine power supply, the system is selected to develop on AutoCAD platform. This paper comprehensively compares the advantages and disadvantages of four secondary development tools of AutoCAD: Autolisp,ObjectArx,VBA and .NET, and finally selects the .NET secondary development tool which is more suitable for system development. The power supply aided design system is based on the actual mine power supply design calculation flow. The purpose of the system is to design and develop a system that can assist mine power supply design calculation, convenient operation and beautiful interface. This system introduces the design idea of function module independence and graph data separation. Eight processes of mine power supply design and calculation are divided into three functional layers: the drawing layer of mine power supply system, the data support layer and the auxiliary design layer of mine power supply. The purpose of the drawing layer of the power supply system is to assist the power supply design engineer to draw the map of the power supply system of the mine. The engineer can insert the device element into the AutoCAD workspace by using the special symbol toolbar of the mine electrical drawing in this function layer, then establish the electrical connection between the equipment drawing elements, and double-click the display form of the equipment element. The data support layer adopts the database construction scheme centered on SQL Server relational database. The data support layer contains two databases, one is the equipment database to store the parameter information of the commonly used equipment in mine, the other is the graduate database to store the drawing element insertion coordinate, electric node coordinate, scheme number, element number, component library name, Equipment element parameters and calculation results and other information. In addition, the data support also includes the input form of equipment parameters and the form of equipment selection and verification. The form program can complete the calculation flow required for power supply design. The auxiliary design layer of mine power supply includes short circuit location selection, short circuit current calculation and setting calculation report output function. The setting of mine protection device is based on the maximum three-phase short-circuit current at the installation of the equipment and the minimum of two short-circuit currents at the end of the protective cable, so the function of selecting the location of the short-circuit point is provided. Power supply design staff can choose to place short-circuit points at the drawing elements of mine flameproof motor, mine flameproof mobile substation and mine flameproof high-voltage vacuum distribution box, and then calculate the short-circuit current. The function layer includes the function of setting up calculation report output. Its principle is to set up the output template and insert bookmarks, and the database data can complete the report output function by inserting the contents according to the bookmark location. In order to verify the practicability of the system, this paper designs and calculates the power supply system of a fully mechanized mining face in a mine. The results show that the calculation of the auxiliary design system for mine power supply is accurate and can meet the needs of the power supply design of the mine.
【學(xué)位授予單位】：太原理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TD611

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