利用微机对发电机转子两点接地保护新原理探讨

An Approach To New Principle of Microcomputer-Based Protection Against Rotor Two Points To Earth Fault For Turbo-generator

本文提出了利用微机实现的隐极同步发电机转子两点接地及匝间短路保护新原理。理论分析表明方案具有较好的故障反映能力。通过电机饱和因素的考虑和采取防误动措施,实现的保护具有高性能。保护已在8086微机上成功地实现。

A new principle of the microcomputer-based protection against rotor two points to earth fault or interturn short circuit for trubo-generator is proposed in this paper. Theorectical analysis shows that the relaying scheme possesses good ability of fault detection. Saturation effect of the machine is well considered in algorithm design and antimaloperation measures is adopted for construction. The relay has been realized in an 8086 microcomputer. It has reached excellent performace.