Study on Power Configuration and Parts Selection of Belt Conveyor in Coal Preparation Plant; Application of Large Converter Power Supply Under Small Capacity Power Network 选煤厂带式输送机功率配置选型的研究小容量电网配置大功率变频电源的选择
Compared with spares management of traditional large power supply enterprises, the spares management of areal small and medium hydropower enterprises is faced with many problems. 区域性中小型水力发电企业与传统的大型发供电企业相比,其电力备品配件管理面临诸多新的问题。
This thesis presents a half-bridge LLC resonant converter for large scale LCD TV power supply. 本文将设计及制作一个半桥LLC谐振式电源转换器以提供大尺寸的液晶电源使用。
Configuring large power supply in high load density networks and interconnections between power grids will cause enormous short-circuit current. 负荷中心大电源的投入和系统互联都会大大增加系统的短路电流。
The system is inoperable without a large power supply. 没有大的动力供应这个系统是无法运行的。
Application of Synchronous Grid Connection in Large Enterprise Power Supply System 同期并列技术在大型企业电网中的应用
Application of Large Converter Power Supply Under Small Capacity Power Network 小容量电网配置大功率变频电源的选择
Analysis and Compare for Voltage Levels of The Large Petrochemical Integrated Plant Power Supply Systems Study of Speed Ratio Match and Control of Melt Belt CVT 化工企业供配电系统中压电压等级的比选金属带式无级变速器速比匹配与控制研究
Large pulse power supply for EDM 电火花加工大功率脉冲电源
Test running indicates that too large charge output from power supply will be disadvantage to running stability and reliability of electro-hydraulic control system on large voltage fluctuate in mine. 指出在煤矿井下供电网络电压波动较大的情况下,电源负荷量过高会影响系统工作的稳定性和可靠性。
To meet the needs of large capacity of power supply in metallurgic enterprises, power supply by the phase arranging separately method was used, and the output circuit and output corridor were decreased, which had obvious economic benefits. 为了满足冶金企业大容量供电的需要,采用相分裂导线方式供电,减少出线回路和出线走廊,经济效益显著。
Basic approach to information integration of large power supply enterprises 大型供电企业实现信息一体化的基本途径
The paper analyses the structure and features of one-shot condense discharge SCR switching circuit SLC-B by way of comparing with various large pulse power supply circuits. 本文通过对各种电火花加工大功率脉冲电源电路的分析对比,介绍了SLC&B型储能电容一次放电可控硅开关电路的结构及其特点。
Communication of the Industrial Control Computer ( IPC) and the Programmable Logical Controller ( PLC) is realized. Dynamic modulation of the IPC to large power supply and load is realized and the control performance has reached a high level. 系统实现了工控机与可编程控制器的相互通信,实现了工控机对大功率电源及负载的动态调节,使控制性能达到较高的水平。
Design of A Large Current Septum Magnet Power Supply 大电流切割磁铁电源的设计
Application of ICP family acquisition module and industry control PC in large scale telecom power supply and environment centralized supervision system is described, theory and methods of distributed acquisition system are clarified. 介绍利用威达系列采集模块及工控机在铁路大规模通信电源及环境集中监控的应用,阐明了分布式采集系统的组成原理和方法。
Discussion about Construction Mode of Geographical Information System in Large Power Supply Enterprise 大型供电企业地理信息系统建设的探讨
Summary on protecting the large capacity rectifying power supply in aluminum industry 铝行业大容量整流电源保护综述
A Large Power Charging Supply Designed for New Type Energy-Model 新型能源模块大功率充电机的设计
These two charge pumps are suitable for circuits with large power supply, and they can also operate in passive and low power systems. 这解决了电荷泵在充电期间功耗过大的问题,使它们不仅能适用于有较强电源的电路,也可以在无源或低功耗的环境下工作。
Single-phase Large Power Three-level Inverter Power Supply and Harmonic Generator 单相大功率三电平数字可编程电源及谐波发生器
Aim at three phase large power switch mode power supply, this paper introduces a PFC scheme, it uses three phase Boost topology and DSP controller. the modulation process is investigated in vector transform method. 针对三相输入的大功率开关电源,提出了采用DSP和三相升压拓扑进行功率因数校正的方案,采用矢量变换的方法研究其调制过程。
Application of Large scale Telecom Power Supply and Environment Centralized Supervision System 铁路大规模通信电源及环境监控系统的实现
With the fast development of computer and telecommunication, the super lowvoltage and large current power supply is a hot spot in the power electronics field. 随着计算机、通讯工具的飞速发展,在电力电子领域超低压大电流技术成为一个研究热点;
New characteristics appeared in Extra-high Voltage Transmission Line protection because of high voltage class, large power supply and high reliability needs. Fiber-optic relay protection is a new relay protection system which can completely meet the requirement of rapid fault clearing for lines. 由于电压等级高、供电功率大、可靠性要求高,超高压输电线路继电保护技术出现了一些新特点,光纤保护就是为满足全线速动要求而采用的新型继电保护装置。
Comparing with the large power system, power supply system of large companies has significantly different characteristics, and there has been relatively little research on its stability control. 相对于大型电力系统,大型钢铁企业供电系统具有显著不同的特点,对其稳定控制的研究相对较少。
The paper adopts full-bridge circuit to design a sub module of a large power switch power supply. And by DSP chip to realize the digital flow equalizing system is designed. 论文中采用全桥式电路设计了大功率开关电源的子模块,并设计出了采用DSP芯片实现数字化均流的均流系统。
Works in the circuit design, component selection, prediction of stability and radiating design of large power supply makes power operating stable and trouble free for a long time. 在电路的优化设计、稳定性预测、元器件选择以及大功率电源的散热设计等方面做了许多工作,使电源长时间稳定且无故障的运行。
The research object in this paper is high-current series-connected LED lamps. Therefore, a high output current and large power supply with off-line ( AC-DC) switching is needed. 本文中驱动对象是大电流串联连接的LED路灯,因此,需要设计一款输出电流、功率足够大的离线式(AC-DC)开关电源。
The cables take up a large proportion in power supply line. The cables used in industry and the business sector in operation for some time will appear aging and hidden trouble for accident. It may cause significant economic losses if not taking timely measures. 供电线路中的电缆所占的比重很大,工业、企业部门所使用的电缆在运行一段时间后,由于各种原因会发生老化,留下事故隐患,如不及时采取措施可能造成重大的经济损失。