发电机

Power station is an important composition of a ship. Ship motor relay-protection equipment is an importance guarantee for safe power supply of ship power system. In order to realize experimental education innovation, we inquire into the experimental equipment of ship motor relay-protection. It will make student, who are major in maritime engineering , know the equipment of ship motor relay-protection and the mechanism of air circuit breaker better. Then they will be persons who are accord to the STCW78/95 pact. On the other hand this research will be powerful quest for computer-controlled ship motor relay-protection testing equipment.

船舶电站是船舶重要组成部分，船用发电机的继电保护装置是船舶电力系统安全供电的重要保证，为了实现实验教学改革，培养符合STCW78／95公约的轮机专业人才，使轮机专业学生深入认识船用发电机主开关继电保护装置和主开关的机械结构，研制了微机控制的船用发电机继电保护试验装置；同时，该试验装置的研制将成为对微机化船用发电机继电保护测试装置的有力探索。

The system description is concentrated on units' function. The principle of induction generator describes how to generate electric power from induction motor and the difference between synchronous generator and induction generator. The design of induction generation system is focus on a 80kW biogas induction generation and controlled parallel panel. Finally, the peripheral unit design is interesting in biogas storage tank, hot air duct and safety device .

系统描述针对感应式沼气发电系统所需设备的功能说明；感应发电机原理机针对马应马达与发电机之运转模式说明，并比较同步式与感应式发电机之差异；感应发电系统设计则针对80kW感应式沼气发电系统所需发电机组、保护并联盘设计说明；周边设施包括沼气储袋、引擎热风导管及沼气安全装置。

Design of hardware circuits and system program is discussed. Parameter in p.u. of synchronous generators is applied in excitation control program, so excitation control program can be used for different synchronous generators excitation control system.

在励磁控制算法程序中采用发电机标么值计算，使本论文设计的发电机励磁控制系统算法程序具有一定的通用性，对其它容量发电机励磁控制系统的设计有一定的参考价值。

The design analyzes the improvement of power factor, the phenomenon of self-excitation,the way of control and protect, and the reasons of usual problem.

分析、讨论了感应发电机功率因数的改善和感应发电机的自励现象、控制、保护以及感应发电机运行中常见故障原因及排除方法。

Based on the analysis of theories, methods and problems about many kinds of PD monitoring and fault diagnosis ES in China and foreign countries, a combination scheme about PD on-line monitoring and diagnostic system of large turbine generators was put forward to supply the technical base for the reliable running of generators.

在分析总结了国内外发电机局部放电监测与故障诊断专家系统的理论与技术以及存在的问题后，提出了大型汽轮发电机局部放电在线监测与诊断系统的组合解决方案，为实现发电机的可靠运行提供了技术基础。

Unladen state generator, step-up from zero after the check check each group voltage transformer secondary voltage value, phase sequence and instrument instruction correctness check value and protection actions return values, taking no-load of generators, power generation Inter-turn machine stator winding insulation pressure.

发电机空载状态下，零起升压后检查检查各组电压互感器二次电压值、相序及仪表指示正确性，检查保护动作值和返回值，录取发电机空载特性，进行发电机定子绕组匝间绝缘耐压。

The techniques are developed to fabricate such vibration generator. A prototype is fabricated.

进行了振动式发电机的工艺研究，完成了振动式发电机的工艺设计和工艺试验，研制出了微型振动式发电机实验样机。

With operating the excitation control system with PLC, this design maintains the terminal voltage of the generator and the whole system, distributes the wattless loads equitably over the generators, makes sure that the generator works normally and the electricity power system functions savely.

本设计通过用可编程控制器控制发电机的励磁系统，来稳定发电机的机端电压，并稳定地分配机组的无功功率，来满足发电机正常发电及电力系统安全运行的需要。

This compressor but with dry device (adsorptive type, refrigerant type or draw type) form a complete set, make inside the dynamo outer circulation of hydric implementation airframe, ensure adsorptive type is dry the second birth of device is dry, although machine or turning condition stop to fall in the dynamo hydric still can be outside airframe is normal circulate, be worth in order to achieve the humidity inside the dynamo normally.

该缩小机可与躁热装置（附着式、冷藏式或者吸取式）匹配，使发电机内氢气完成体机外循环，保证附着式躁热装置的复生躁热，既便在发电机停机或者盘车态势下氢气仍可以在体机外正常循环，以达到和实现发电机内湿润程度正常值。

Compared with the induction generator and the synchronous generator, the doubly-fed generator shows few differences in structure, but the most outstanding characteristic is that it has no special requirement on rotative velocity to the axes.

从结构上看，双馈发电机与常见的感应发电机和同步发电机无太大的差别，但它却有一个引人注目的特点，即对轴上输入转速无任何特殊的要求。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。