According to some contingencies during operation and defects during on-site tests in actual projects, this paper points out that it is necessary to optimize parameters of related controllers.

• 本文根据实际直流工程在运行过程中出现的事故以及在现场调试过程中发现的问题，提出对其控制系统的相关调节器进行参数优化的必要性。