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矿山电机车采用脉冲调速比采用电枢回路串接电阻调速,具有节省电力,调速平稳,可实现无级调速等优点,是矿山电机车调速的发展方向。但是,由于矿山电机车运行环境复杂,特别要求调速装置具有安全可靠,不易损坏等特点,方能适应矿山运输的复杂环境。因此,要实现矿山电机车脉冲调速,还有一些具体技术问题要解决。这里,根据1978年我矿在250伏7吨电机车上试用脉冲调速装置所遇到的问题提出两点探讨意见。(一)主回路可控硅元件额定电流的选
The mine electric locomotive adopts the pulse speed regulation ratio to adopt the armature circuit series resistance speed regulation, which has the advantages of saving electricity, regulating the speed smoothly and realizing the stepless speed regulation and so on. It is the development direction of the mine electric locomotive speed regulation. However, due to the complex operating environment of mines and electric locomotives, the special requirement for speed regulating devices is that they are safe and reliable, and are not easily damaged. Therefore, the complex environment of mine transportation can be adapted. Therefore, in order to realize the pulse motor speed control, there are some specific technical problems to be solved. Here, two opinions are put forward according to the problems encountered by the mine during the trial of the pulse speed governing device on a 250-volt 7-ton electric locomotive in 1978. (A) the main loop thyristor rated current of the election