CAJ | 학술논문

温室大棚环境系统是一个具有非线性、时变和大惯性等特点的复杂系统，难以建立精确的数学模型进行控制。为此，以显著影响温室作物生长的温湿度为研究对象，构建了一个温湿度模糊控制系统方案，应用模糊控制系统理论设计了温湿度模糊控制器，编写了模糊控制算法的 PLC 程序，并对温湿度的模糊控制效果进行了实际观测。系统运行结果表明：当温湿度值设定为22℃和70％RH时，控制过程平稳、超调量小、运行稳定，能够满足温室作物对生长环境的要求。
온실대붕배경계통시일개구유비선성、시변화대관성등특점적복잡계통，난이건립정학적수학모형진행공제。위차，이현저영향온실작물생장적온습도위연구대상，구건료일개온습도모호공제계통방안，응용모호공제계통이론설계료온습도모호공제기，편사료모호공제산법적 PLC 정서，병대온습도적모호공제효과진행료실제관측。계통운행결과표명：당온습도치설정위22℃화70％RH시，공제과정평은、초조량소、운행은정，능구만족온실작물대생장배경적요구。
The greenhouse environmental system is a non-linear, time-varying, big-inertia synthetic system .It is diffi-cult to establish precise mathematic model for controlling .So This research chooses temperature and humidity which are the most significant impact to the crops growing as the object of study , constructs a fuzzy control system of temperature and humidity , designs fuzzy controller of temperature and humidity according to fuzzy control theory , programs PLC ( Pro-grammable Logic Controller ) program of fuzzy control algorithm , and observes the control effect of temperature and hu-midity.The running result of system shows that when the temperature and humidity settings were 22℃and 70%RH, the control process was relatively stable , temperature and humidity changed in a smaller overshot , the running of system was steady , and the system could provide the best environment for crop growth .