潘登系列智能照明稳压节电柜被评为上海市节能产品

上海潘登新能源有限公司研发生产的智能型照明稳压节电柜，采用补偿式无级调压稳压电路和浪涌抑制技术，可以根据用户电网电压的波动情况和照明负载的性质进行稳压供电，避免电网电压异常升高照明灯具功率无谓的增加导致的能源浪费和使用寿命的缩短。另外由于灯具具有光衰的特性，在使用初期光效较高，但以后效率下降，因此具设计总是留有余量，     

照明稳压节电柜的技术特点与应用

2014年我国全社会用电总量为55233亿k Wh,其中照明用电占全社会用电总量的14.3%,照明节电已经成为节能的一个重要方面。介绍了照明灯具的节电特性,照明稳压节电柜的工作原理、技术特点和应用领域,并以浙江龙丽丽龙高速公路和上海新国际博览中心为例,介绍了照明稳压节电柜的应用效果。     

节能照明太阳能供电优选的研究

提出一种新型的太阳能供电节能照明方案,以太阳能供电为主,辅以蓄电池和市电备用,通过供电优选技术,达到节能低碳的绿色照明要求.叙述该照明系统的工作原理、供电优选设计、太阳能电源控制器的研制以及照明系统的节能效果.     

既有四星级酒店综合节能改造案例介绍

根据历史能耗数据分析了该酒店在空调及热水系统冷热源及照明上的节能潜力,指出该酒店原风冷热泵系统效率低下、冬季运行不稳定,原电加热水器效率低,并由于设备使用年限已久,无法保证热水品质,灯具不是高效灯具等问题,通过现场测试及对其历史用能数据的深入分析,寻找节能潜力,给出了相应的节能改造方案,应用磁悬浮冷机完成了对既有风冷热泵的更新,同时完成了对酒店空调水系统、生活热水系统及照明系统的综合节能改造,实现了综合节能率约25%,取得了良好的效果,可以为相似项目提供借鉴。     

节能照明系统的研制

设计的照明控制系统是一种新型的节能照明控制系统。该系统能较好地适应HID灯的特性。在电压波动范围较大的情况下,系统能使灯具在给定电压下正常稳定运行。此外,系统还能有效地降低灯的启动电压,减少甚至消除频闪现象,因而能降低对电网的干扰,延长灯的寿命,并达到节能效果。该系统具有可靠性高、节能明显、无噪音、可移植性强等特点,可适用于各种照明场所。     

高压钠灯电压优化及节电应用

根据高压钠灯在不同电压下的照度及寿命特性,推导出路灯半夜灯的最佳供电电压。通过对照明灯具从承受相电压变至线电压一半的自动转换,实现高压钠灯供电电压的优化,从而实现照明节电。     

新型实用照明节能系统

介绍一种结构简单、实用、成本低且节能效果显著,并克服因电源闪断或电压波动过大,容易造成灯具损坏、寿命缩短的缺点的新型照明节能系统.     

一种节电的大功率自动稳压装置

针对电力系统供电电压一般高于负载额定电压的实际情况,采用电磁平衡技术和PLC控制技术,设计了一种降压的自动稳压装置。介绍自动稳压装置的构成和节电原理,通过结构设计和器材选择,使得自动稳压装置的自身损耗极小,具有明显的节电效果。     

GGDZ稳压节电器在照明系统中的应用

分析安阳钢铁集团第二炼轧厂照明系统进行存在的问题,本着经济实用的原则,提出优化改造措施,采用GGDZ照明稳压节电器进行控制改进,介绍了其工作原理、节电特性及应用情况。     

建筑物景观照明技术的节能探讨

归纳叙述景观照明的节能措施,就节能效果方面探讨对不同被照物的不同颜色、不同的材料反射特性以及不同的照明方式下对光源、灯具、灯位的选择。     

基于仿真的电控柴油机ECU电源系统设计

电源为电控柴油机ECU的各个模块芯片供电,是ECU的核心模块之一。针对电控柴油机ECU供电环境以及应用特点,分别对电源系统结构设计、电源输入处理模块、低电压电源模块和高电压电源模块进行了设计。测试结果表明,电源的抗干扰性和响应性均满足要求。采用基于仿真的设计,有效的满足了电源系统的要求,是一种高效低成本的电源设计方法。     

火电厂建筑节能技术的应用探讨

根据火电厂建筑的类型与特点,叙述了建筑采光、墙体的保温隔热、绿色节能系统及节能灯具、建筑施工过程节能、厂区建筑集中供热供气等应采用的建筑节能技术,指出,提高电厂建筑的能源利用系数对火电厂的节能减排具有重要意义。     

火电厂建筑节能技术的应用探讨

根据火电厂建筑的类型与特点,对建筑采光、墙体的保温隔热、绿色照明系统及节能灯具、建筑施工过程节能、厂区建筑集中供热供气等建筑节能技术的具体应用进行了探讨与总结,提高电厂建筑的能源利用系数,对火电厂的节能减排具有重要意义。     

Maximum power point tracking supported proton exchange membrane fuel cell based intelligent dynamic voltage restorer

In modern era, electrical power utilities are more concerned about power quality. In this endeavour, dynamic voltage restorer (DVR) provides adequate support to the system. Accordingly, the present work illustrates intelligent hybrid control mechanism for DVR. Artificial neural network (ANN) is incorporated to obtain real-time optimal gains under distinct voltage situations. Closed loop type 2 fuzzy logic (CLT2-FL) is also realized in order to assist the ANN supported unit concomitantly. In order to enhance the potential of the present DVR, a CLT2-FL controlled maximum power point tracking (MPPT) based proton exchange membrane fuel cell arrangement is also explored in the present study. CLT2-FL module is adopted in DC-DC converter topology to provide simultaneous supply to the loads at different and regulated voltage levels. Consequently, the results are evaluated and compared to the state-of-the-arts which unveil the efficacy of the implemented controller against the oddity seen in the voltage waveform, thereby, exhibiting better voltage regulation and less harmonics. The effectiveness of the implemented MPPT unit from the viewpoints of convergence speed and oscillations is also established.     

Permanent-magnet machines

This paper explores the use of an interior permanent-magnet synchronous machine (IPM) as a source of controlled DC power. A three-phase diode rectifier converts the generated AC power into DC, which is further processed by a buck or boost DC-DC converter with a pulse-width modulation voltage controller for load voltage and output power regulation. The modeling and analysis of the generator system set forth are confirmed to accurately predict the generator characteristics by experimental results derived from a 2 hp interior permanent-magnet generator controlled separately by a buck and a boost DC-DC converter     

High-performance voltage control scheme for wind park integration

The design and implementation of a new control scheme for reactive power compensation and voltage regulation in the transmission system, as provided and controlled by a wind park is presented. It proposes an optimal tracking secondary voltage control scheme applied to doubly fed induction generator-based wind generators. The ability of the controller to regulate transmission network voltage profiles is demonstrated and compared with primary voltage control, an alternate secondary voltage control approach, and the voltage profile obtained from optimal power flow analysis. The dynamic performance of the controller is also validated in response to system contingencies, namely short circuits. The impact of communication time delays and of the short-circuit ratio on the dynamic performance of the voltage controller are considered. Results show that the controller properly regulates the voltage in steady state and performs properly during transients resulting from short circuits. Decoupling between primary and secondary loops should be applied to mitigate the effects of the time delay.     

SVC纯水冷却系统智能交流稳压电源设计

针对SVC纯水冷却系统380V电源供电需求的重要性和特殊性,设计了一种可进行常态电压调节和预估电压调节的串联补偿交流稳压电源装置。装置电路结构及控制方式简单,参数设定灵活,输出精度高,能够有效避免因380V低压电源供电不可靠而引发的事故。     

Energy management of fuel cell/battery/supercapacitor hybrid power source for vehicle applications

This paper proposes a perfect energy source supplied by a polymer electrolyte membrane fuel cell (PEMFC) as a main power source and storage devices: battery and supercapacitor, for modern distributed generation system, particularly for future fuel cell vehicle applications. The energy in hybrid system is balanced by the dc bus voltage regulation. A supercapacitor module, as a high dynamic and high power density device, functions for supplying energy to regulate a dc bus voltage. A battery module, as a high energy density device, operates for supplying energy to a supercapacitor bank to keep it charged. A FC, as a slowest dynamic source in this system, functions to supply energy to a battery bank in order to keep it charged. Therefore, there are three voltage control loops: dc bus voltage regulated by a supercapacitor bank, supercapacitor voltage regulated by a battery bank, and battery voltage regulated by a FC. To authenticate the proposed control algorithm, a hardware system in our laboratory is realized by analog circuits and numerical calculation by dSPACE. Experimental results with small-scale devices (a PEMFC: 500-W, 50-A; a battery bank: 68-Ah, 24-V; and a supercapacitor bank: 292-F, 30-V, 500-A) corroborate the excellent control principle during motor drive cycle.     

Synchronous mode operation of DFIG based wind turbines for improvement of power system inertia

Inertia emulation methods exist to compensate for the reduced inertial support provided by doubly fed induction generator (DFIG) based wind turbines. Instead of emulating inertia, this paper proposes to temporarily convert DFIGs to synchronous generators, enabling supply of real inertia to the system. In order to achieve this, the voltage supplied to the DFIG rotor needs to be made independent of the grid frequency. Feeding the rotor with a fixed dc voltage while it is rotating at synchronous speed enables the DFIG to operate in synchronism with the grid and couple the inertia of its rotating mass to the power system. The rotor side converter of a DFIG can be controlled to function as the dc voltage source, allowing convenient switching between the two operation modes according to system requirements.