With continuous development of science and technology, the excitation system of synchronous generator is constantly being upgraded. A series of waste heat power generators were installed and put into operation in the energy & power plant of TISCO accompanying new projects of the steelmaker. The technical characteristics and optimization process of the excitation device for power generators are introduced.%随着科学技术的不断发展，同步发电机的励磁系统也在不断地更新换代，太钢能源动力总厂随着太钢新建项目配套建设投产了一系列的余能余热回收发电装置。介绍了发电装置配套的励磁装置的技术特点与改进完善历程。
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