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本文应用现代控制理论的基本原理,——极小值原理,从节能的观点探讨了直流调速系统过渡过程的最小能耗控制。并用SDK-86单板机作为控制工具,对可控硅调速系统进行实验研究。试验结果表明,采用最小能耗控制比目前常用的双闭环系统可减少能耗约10％。近几年来,随着微型计算机的性能价格比的提高,微型计算机在电气传动控制系统中的应用逐渐增多,本文应用SDK-86单板机实现可控硅调速系统的最小能耗控制和直接数字控制。并对两种控制方式在过渡过程中的能耗加以分析比较。在最小能耗控制中,由于使用了算法优化技术,因此,最小能耗控制程序在运算精度和运算时间方面均能满足实际系统的要求。
In this paper, the basic principle of modern control theory, - minimum principle, from the energy point of view of DC speed control system during the transition to the minimum energy consumption control. And with the SDK-86 single-board machine as a control tool, experimental research on SCR speed control system. Test results show that the use of minimum energy control than the current double closed-loop system can reduce energy consumption by about 10%. In recent years, with the improvement of the performance-price ratio of the microcomputer, the application of the microcomputer in the electric transmission control system has been gradually increasing. In this paper, the minimum power consumption control and direct control of the thyristor speed-regulating system by using the SDK-86 single-board computer digital control. The energy consumption of the two control modes in the transition process is analyzed and compared. In the minimum energy control, due to the use of algorithm optimization technology, therefore, the minimum energy control program in the calculation accuracy and computing time can meet the actual system requirements.