昙花梦1988电视剧第5集:在线等！有谁帮我翻译一下（理工科的，英翻中），急，谢谢！！

Because it has no mechanical brushes，a brush1ess AC generator with a rotary rectifier possesses such virtues as simple maintenance requirements，high reliability， and long-time operation without maintenance． Hence， it finds wide application in automatic power stations，aircrafts，watercrafts，and bad work environments which demand caution against explosion，burning and dust．However，as the rotor operates at a high speed，some unexpected faults which can't be detected when the motors stop，may come up．Thus，it is necessary and significant to model and simulate a brushless AC generator with a rotary rectifier at a normal and fault operation state，respectively[1]． As shown in Fig．1，for a brushless AC generator with a rotary rectifier，there are both mechanical and electrical connections among two synchronous machines and a rectifier． There fore，with regard to modeling and simulation the following two problems should be handled：① how to model and simulate a synchronous generator with a rectifier；② how to model and simulate the mechanical coupling between two synchronous machines.
For the first problem，in reference[1]，a Matlab／PSB model for a synchronous generator with a rectifier was presented after comparison between the traditional Mode
Classification and the simulation method by Matlab／PSBE4's]．For the second problem ，in case the mechanics character of the axle is taken out o f regard， the mechanical coupling between two synchronous machines can be simulated as long as the speeds of two synchronous machines are the same．In this case，the speed should be an in put，which has been satisfied by the model for synchronous machines given by reference[1]．

On the basis of reference[1]，a simulation model for a brushless AC generator with a rotary rectifier by Matlab／PSB is presented in this paper，and the corresponding simulations at normal and fault operation states
are demonstrated ，respectively．