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摘要
全球人口增長(zhǎng)和發(fā)展中國(guó)家的經(jīng)濟(jì)擴(kuò)張，到2050年，世界能源需求可能翻番甚至增加兩倍。地球上的全部生命都依賴于能源和碳循環(huán)。能源對(duì)經(jīng)濟(jì)級(jí)社會(huì)發(fā)展都至關(guān)重要，但這也帶來(lái)了環(huán)境方面的挑戰(zhàn)。我們必須探索能源生產(chǎn)與消費(fèi)的各個(gè)方面，包括提高能效、清潔能源、全球碳循環(huán)、碳資源、廢棄物和生物質(zhì)，還要關(guān)注它們與氣候和自然資源問題之間的關(guān)系。風(fēng)力發(fā)電的發(fā)展是時(shí)代的需要。
在風(fēng)力發(fā)電控制系統(tǒng)中，基于PLC為主控制器的設(shè)計(jì)是未來(lái)的發(fā)展方向。本設(shè)計(jì)基于PLC的風(fēng)力發(fā)電控制系統(tǒng)，旨在保證風(fēng)力發(fā)電機(jī)組的各類軸承、齒輪箱、風(fēng)輪、發(fā)電機(jī)正常工作；通過選擇合適的控制方法，使系統(tǒng)能更加穩(wěn)定的運(yùn)行，進(jìn)而可以有效提高風(fēng)力利用率。
設(shè)計(jì)中主要對(duì)發(fā)電機(jī)控制電路、偏航控制電路、風(fēng)輪和齒輪箱及液壓站的運(yùn)行和工作情況進(jìn)行了設(shè)計(jì)，并繪制了相應(yīng)的電氣原理圖。在控制電路中還說明了PLC、電動(dòng)機(jī)及相應(yīng)低壓器件的型號(hào)選擇，繪制了I/O接線圖；在發(fā)電機(jī)控制電路中，設(shè)計(jì)了發(fā)電機(jī)的轉(zhuǎn)速控制方面；偏航電路中，設(shè)計(jì)了對(duì)風(fēng)、解纜功能；在齒輪箱系統(tǒng)中，設(shè)計(jì)了油位控制功能。
同時(shí)在設(shè)計(jì)中還詳細(xì)編寫了各部分的控制程序，并進(jìn)行了相關(guān)調(diào)試，另外利用S7-200仿真軟件進(jìn)行了系統(tǒng)仿真驗(yàn)證，仿真結(jié)果滿足設(shè)計(jì)要求。
關(guān)鍵詞：可編程控制器；故障監(jiān)測(cè)；控制系統(tǒng)；傳感器；風(fēng)力發(fā)電
窗體頂端
In recent years, by the international and domestic macroeconomic situation, the domestic power supply load growth has slowed down, in a considerable number of thermal power output limited circumstances, wind power is still rapid development momentum, so the fan blades on-line monitoring is significant, because wind power has a short construction period, flexible installed capacity, high reliability, easy operation and maintenance, are renewable clean energy, etc., so that in the future large-scale power plants, wind power has become an inevitable development.
窗體底端
I
Abstract
Global population growth and economic expansion in developing countries, by 2050, world energy demand is likely to double or even triple. All life on Earth is dependent on energy and the carbon cycle. Energy level of economic and social development are essential, but it also brings environmental challenges. We must explore all aspects of energy production and consumption, including energy efficiency, clean energy, global carbon cycle, carbon resources, waste and biomass, but also concerned about their relationship to climate and natural resource issues. Development of wind power is the need of the times.
In the wind power generation control system, PLC based controller design is based on the future direction of development. The design is based wind power PLC control system designed to ensure all kinds of bearings of the wind turbine, gearbox, wind turbine, generator work; by choosing the appropriate method of controlling the operation of the system can be more stable, and thus can be effectively improve the utilization of wind power.
Design of the main control circuit of the generator, yaw control circuit, and operation of the wind wheel and the work gear boxes and hydraulic stations were designed, and draw the appropriate electrical schematics. In the control circuit also described model selection PLC, low-voltage motors and corresponding devices, draws I / O wiring diagram; the generator control circuit, the design of the generator speed control; yaw circuit, designed for wind, untwisting functions; the gear box system designed oil level control functions.
At the same time in the design of the control program also details the preparation of each part, and for the relevant commissioning, another advantage of the system S7-200 simulation software simulation, the simulation results meet the design requirements.
Keywords: PLC; fault monitoring; control system;sensor; wind power
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