大型剧场专业设备供配电及控制

阐述大型剧场配置的主要舞台设备供配电要求、使用功能与控制方式.①大型舞台专用设备属一级负荷.②舞台机械,包括台上设备(如刚性防火幕、对开式均匀伸缩大幕)、台下机械(如主升降台、升降乐池)的使用功能及控制方式要求,包括手动控制要求和计算机控制要求.③舞台灯光的配电回路及调光回路的划分、光源及灯具的选择、灯光控制及调光系统的配置要求.④音视频系统,包括扩声系统和会议系统的组成及供配电要求.     

通用机场助航灯光及机坪助航设备设计探讨

通过对某通用机场飞行区助航灯光及机坪助航设备设计的介绍,总结通用机场灯光站、进近灯光系统、目视进近坡度指示系统、跑道灯光系统、滑行道灯光系统、滑行引导标记牌、助航灯光专用电缆、机坪照明及机务用电的电气设计要点,并根据通用机场的特点提出通用机场飞行区设计方法。     

机场助航灯光系统的谐波处理分析

在机场助航灯光系统中,调光器是重要的设备,但是在运行过程中会产生较大的谐波,导致系统电压、电流出现畸变,整个功率因数降低,甚至产生设备损坏的情况。文章首先分析了机场助航灯光系统谐波,通过对调光器的研究分析,提出正弦波恒流调光器应用方案,能够减小谐波含量,维护机场助航灯光系统的正常运行。     

五键调光器DM203

DM203是ApBus智能控制系统兼容使用的灯光控制模块,可以接两路灯具或照明回路,一路可以调光,另一路为开关控制。模块面板带有五个可编程按键,每一个按键均可定义控制系统内的任何一路或多路照明回路的调光或开关,也可定义控制系统内的一路或多路电器电源开关及窗帘开合,同时也可作灯光电器的组合情景控制。     

机场LED嵌入式灯具的优势及应用分析

稳定可靠的助航灯光系统是机场安全运营的保障。论文在阐述机场目视助航灯光系统要求的基础上,重点分析了LED灯具相对于传统卤素灯具的特点,探究了嵌入式灯具相对于立柱式灯具的优势。进一步,以乌鲁木齐国际机场为应用案例进行论证,结果表明,机场LED嵌入式灯具的使用对减少灯具故障数量、降低维修成本、提升除冰雪效率等方面有着明显的优势,可为机场助航灯光系统的发展与升级提供技术基础。     

浅谈信息技术在助航灯光监控中的应用

信息技术在实现机场助航灯光的综合监控是当前机场航运管理现代化的一个重要标志。它不仅可以使系统运行高效、可靠、故障报警准确及时,而且还可以大大提高管理效率,为飞机起降提供迅速、准确的引导。另外还可以减少飞机起降时间,增加航运班次,降低营运成本。助航灯光在夜间及能见度低天气条件下对飞机起降起着重要作用,灯光系统运行良好至关重要。本文就助航灯光监控系统进行论述。     

通用机场目视助航设备设计研究

以中南某通用机场为例,详细介绍该通用机场进近灯光系统、目视进近坡度指示系统、跑道灯光系统、滑行道灯光系统、其他灯光系统、滑行引导标记牌、机坪泛光照明、机务维修配电亭等目视助航设备及其供配电系统的设计依据、设计思路和设计方案。     

可调光LED在隧道照明工程中的应用

以河北省承德市石洞子沟隧道照明工程为例,根据JTJ 026.1—1999《公路隧道通风照明设计规范》的标准要求,采用可调光LED光源对其照明系统进行设计。详细介绍了灯具布置方案及无级调光控制系统原理。该工程现已投入使用,经过现场实测,隧道内照明完全达到国家要求的照度和均匀度,且与传统隧道灯具相比有效节约了电能。     

LED照明亮度智能无级控制系统在城市隧道中的应用

按需照明,人类已经追求了上百年。由于传统光源的局限性,这一愿望始终未能实现。本文通过对分级调光与无级调光的能效分析,说明了隧道LED照明亮度智能无级控制系统的节能原理及在城市隧道中的应用实效。这是该系统首次应用于城市隧道,开创了城市隧道照明智能化先河。它的成功应用,使城市隧道照明真正实现了按需照明的理想。     

基于模糊层次分析的机场助航灯光抢修预案研究

机场助航灯光系统是机场目视导航的核心部分。随着现代机场发展,供电线路变得愈加繁多,以及机场复杂的人为、自然因素,助航灯光系统极易发生故障,从而影响机场正常运转。在此种状况下,如何合理分配有效的抢修资源,以最快速度检测并排除故障,是保障机场运转的关键问题。本文以基于模糊的层次分析法为工具,对复杂的助航灯光抢修建立层次方案,并进行量化处理,合理分析不同抢修预案的选择权重,从而为决策者提供理性的解决方案。     

调光系统在公共建筑中的应用

本文介绍了照明控制方式的发展历程，着重介绍了调光系统的工作原理、造型方法、设计步骤和经验，并结合上海恒隆广场的调光系统设计方案，介绍了调光系统在典型公共建筑中的应用，并对调光系统未来的应用前景进行了展望。     

调光系统在办公建筑中的应用

本文介绍了照明控制方式的发展历程，着重介绍了调光系统的工作原理、选型方法、设计步骤和经验，并结合上海恒隆广场的调光系统设计方案，介绍了调光系统在典型办公建筑中的应用。并对调光系统未来的应用前景进行了展望。     

Quantifying energy savings in daylight responsive systems: The role of dimming electronic ballasts

The application of lighting control technologies with photosensors has led to an increase in public interest. Although these technologies have been promoted during the last years their successful use in buildings has been accomplished in a small percentage of new projects. One reason is the difficulty in quantifying the energy savings and thus the subsequent payback period. Daylight responsive dimming systems consist of three basic components: photosensor, controller, and dimming unit. Electronic dimming ballast (EDB) is one substantial component of these lighting control systems which can adjust the light output due to the transferred signal from the photosensor and lighting controller. The aim of this study is to quantify energy savings among different EDBs. Eighteen commercial EDBs were selected and various sets of electrical and illuminance measurements were taken for different dimming levels, in order to develop polynomial functions between light output and consumed power. Using the measured data, a set of simulations were performed for a photosensor with an ideal cosine spatial sensitivity distribution installed in a typical office room using two control algorithms, closed loop and integral reset, trying to quantify the relative differences in energy savings.     

浙江中控LCS-300智能照明调光系统在福鼎金九龙大酒店的应用

本文主要介绍了浙江中控LCS-300智能照明调光系统的特点及其在福鼎金九龙大酒店的应用,并在此基础上分析了应用该系统之后的收益。     

公路隧道LED照明数值模拟

针对1 km长、洞高6 m的双向单车道公路交通隧道,采用DIALUX软件,模拟出隧道各段LED照明亮度值指标。为了便于控制系统采集自然光、车速和车流量信息进行融合建模,达到输出模拟量线性调光的控制目标,文中采用统一规格的隧道LED照明灯具,根据《公路隧道通风照明设计规范》,计算出隧道各照明段初始标准值,灯具布局模拟后,路面亮度总均匀度为0.669～0.940 、路面中线亮度纵向均匀度为0.528～0.911,各段平均照度为66～1 790 lx,布光留有10%～50.91%标准定义的调光余量,为调光提供了灯具布局参考。     

广州市快速公交试验线LED照明设计

广州市中山大道快速公交(BRT)试验线车站照明采用随自然光自行调节亮度的LED照明灯具,介绍其配电、照明、防雷设计,以及智能照明控制、照明母线配电、PWM调光控制在工程中的应用等。     

LED光源智能照明控制设计及应用

本文介绍了LED光源特点,LED光源对智能控制的要求及相互融合,智能照明控制对于LED光源的开关、各种调光控制的实现。     

Estimation of lighting energy savings from daylighting

This paper refines and validates the predictions of a simplified analysis method for evaluating the potential of daylighting to save energy use associated with electrical lighting. Specifically, impacts on daylighting performance are investigated for several combinations of building geometry, window size, and glazing type for several US and international locations. The impact of both dimming and stepped daylighting controls and their settings are also investigated. Predictions from the simplified method are validated using measurements obtained from field-testing of a daylighting control system utilized to operate lighting fixture illuminating an office space.     

Lighting energy savings in offices using different control systems and their real consumption

This paper compares the potential of lighting energy savings in office rooms by using different control systems, for three locations in Europe and the four main orientations. The method is based on DAYSIM simulations to perform daylight calculations, on laboratory measurement to evaluate precise system energy consumptions and on the implementation of a new algorithm to simulate a close-loop daylight dimming system. It appears that the control of the electrical power in function of daylight leads to very high savings; they slightly depend on the room orientation and the location. Savings vary from 45 to 61%. The performances of an occupancy sensor are also tested. Threshold values of occupancy rate for which daylight dimming leads to higher gains than an occupancy control system vary between 27 and 44% depending on location and orientation. The measurements of the energy consumption of the sensors and detectors also permit to conclude that systems with embedded DALI-compatible ballast controllers should be abandoned in favour of a centralized DALI-compatible ballast controller or embedded analogue systems.     

The characteristics of photosensors and electronic dimming ballasts in daylight responsive dimming systems

Daylight responsive dimming systems are being used to improve both the quantity and quality of the visual environment, and can significantly reduce the electric lighting requirement. Adequate accuracy and reliability of daylight responsive dimming systems are the major market barriers to their more widespread use. In an effort to overcome these barriers, this study involves the analysis of the spatial response of photosensors and their related mounting locations, and the performance consistency of electronic dimming ballasts. The characteristics of the spatial distribution of a series of photosensors were measured, and then the relationship between photosensor signals and the corresponding workplane illuminances was identified through field measurements. The relationship between the control voltage of electronic dimming ballasts and its corresponding light output ratio was also identified. The best-fit functions for this relationship when applying electronic dimming ballasts were derived such that a desired light output level can be obtained with proper control voltage of the electronic dimming ballasts.