A renovation project for the switch-type microcomputer-based excitation of the hydraulic generator with DC exciter is put forward.
提出了带直流励磁机发电机机组开关式微机励磁改造方案,以工程应用为实例,介绍了开关式微机励磁装置的工作原理、功能特点,并根据工程实践情况总结了开关式微机励磁装置设计和应用时一些注意事项。
Current statue of excite system on coaxial D.
介绍中氮厂自备电站12MW及以下小型汽轮发电机同轴直流励磁机励磁系统的技术现状及其对供电稳定性的影响,并提出了更新改造的建议。
To reform planing machine made in home,using rectifier bridge,which is mainly consisted of rectifier diode,to replace of directcurrent exciter in Shiheng special steel works.
石横特钢厂采用以整流二级管为主体的整流桥代替直流励磁发电机改造国产龙门刨床。
Making use of the advantage of small current pulsation of monopole PWM bridge DC convert circuit,combining the technique of microprocessor,applying to separate power supply in DC excitation system,it s convenient to implement the manipulation of non-contact-commutation,it has quick response and it can fulfil the requests of the system to excitation.
利用单极性PWM桥式直流变换电路所具有电流脉动小的优点,结合微处理技术,应用在独立电源供电的直流励磁系统中,便于实现无触点化换向操作,且动作响应快速,更好的满足系统对励磁部分的要求。
In this paper, the 6000V/1250kW three-level neutral point clamped (NPC) inverter is applied to the 6000V/2750kW machine sets, and the difficulty of applying DC pre-excitation in this system is studied, then it is solved .
本文研究了大容量三电平变频调速系统在6000V/2750kW大机组平台上所面临的起动问题,分析了直流预励磁所面临的困难,并采用交流预励磁予以解决。
In this paper,a DC pre-excitation strategy,which limits the starting current and enhances the electromagnetic torque via establishing the flux linkage before starting process,is proposed to the three-level inverter.
该文在探究上述情况产生原因的同时,提出了一种应用于三电平变频器—电机系统的直流预励磁方案,在电机起动前预先建立起电机磁场,有效地遏制过大的起动电流。
Within our countrys power system, synchronous generator excitation system primarily consists in direct current exciter system and semiconductor exciter system.
在我国电力系统中,同步发电机的励磁系统主要有直流励磁机励磁系统和半导体励磁系统两种。
Synchronous Generator A synchronous generator is an AC generator haing a DC exciter.
同步发电机同步发动机是配有直流励磁机的同步交流发电机。
A rotating commutator on the dc machine, used as an exciter, was a common means for achieving rectification in the past.
在过去,直流励磁机上的旋转整流子是用作整流的普遍措施。
Reseach on the Control System for Hybrid Excitation Brushless DC Motor;
混合励磁无刷直流电机控制系统研究
The function of the excitation system is to provide direct current for the generator rotor windings, or field windings.
励磁系统的功能是向发电机转子绕组,即励磁绕组提供直流电流。
On Special Excitation Structure to Improve Aeronautical REPM DC Motor
异形励磁结构稀土永磁航空直流电动机
Test procedure for non'direct current excitation winding synchronous motor
GB/T13958-1992无直流励磁绕组同步电动机试验方法
The Research and Experiment of Direct Current Excitation Variable-Speed Constant-Frequency Wind Power Generator;
直流励磁变速恒频风力发电机的研究与实验
exciter field breaker
励磁电流断路器;励磁机励磁电流断路器;磁场电流断路器
A Study on the Excitation Control System For AC Excited Generator
交流励磁发电机励磁控制系统的研究
Study and Simulation on Excitation System for AC Excited Generator;
交流励磁发电机励磁系统研究与仿真
AC commutator type exciter
交流换向器式励磁机
Research on the Applic-ation of the Mixed Exitation Brushless Direct Current Machine in Electric Automobiles;
混合励磁无刷直流电机在电动汽车中应用的研究
Analysis of knotty problems with regard to“weakening;
关于他励直流电动机弱磁调速问题中的疑难分析
Design of Excitation System for ACEG Excited by the Dual PWM Converter;
双PWM变换器励磁的交流励磁发电机励磁系统设计
Study on Control Strategies of AC Excited Generator and Its Excitation Power Supply;
交流励磁发电机及其励磁电源的控制策略研究
Simulation and Study on AC-AC Excitation System for AC Excited Generator;
交流励磁发电机交—交励磁系统仿真研究
Study and Design of Excitation Power Supply of A.C.Excited Generator;
交流励磁发电机励磁电源的研究与设计