基于振荡控制的合理性景观照明接地系统设计  

Design of rational landscape lighting grounding system based on oscillation control

作　　者：丁玮[1] DING Wei(Tianjin University Research Institute of Architechtural Design,Tianjin 300073,China)

机构地区：[1]天津大学建筑设计研究院,天津300073

出　　处：《电子设计工程》2020年第13期32-35,40,共5页Electronic Design Engineering

摘　　要：为了提高景观照明接地的合理性,需要进行景观照明接地的合理性分析,提出基于线性自抗扰控制和模型参数特征分析的景观照明接地系统设计方法。设计景观照明接地的等效电路模型,获取接地阻抗,依据阻抗判断振荡状况,提取振荡特征并分析。在控制振荡的前提下,设置保护增益,构建了景观照明接地系统的三相工频电流调制模型,采用线性自抗扰控制方法,控制景观照明接地系统的超低频振荡并优化模型参数,实现景观照明接地系统的优化设计。测试结果表明,设计的系统具有很好的景观照明接地输出控制能力,系统的抗干扰能力较强,接地保护能力较好,证明所设计的景观照明接地系统合理性较好。In order to improve the rationality of landscape lighting grounding,it is necessary to analyze the rationality of landscape lighting grounding,and a design method of landscape lighting grounding system based on linear auto-disturbance rejection control and model parameter characteristic analysis is proposed.The equivalent circuit model of landscape lighting grounding is designed,the grounding impedance is obtained,the oscillation condition is judged according to the impedance,the oscillation characteristics are extracted and analyzed.On the premise of controlling the vibration,the protection gain is set up,and the three-phase power frequency current modulation model of the landscape lighting grounding system is constructed.The linear ADRC control method is used to control the ultra-low frequency oscillation of the landscape lighting grounding system and optimize the model parameters to realize the optimization of the landscape lighting grounding system.Design.The test results show that the designed system has good lighting and grounding output control capability,the anti-interference ability of the system is strong,the grounding protection capability is good,and it is proved that the designed landscape lighting grounding system is reasonable.

关 键 词：景观照明 接地系统 抗扰控制 振荡分析 

分 类 号：TM73[电气工程—电力系统及自动化]