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| 燃煤机组脱硝自动控制系统优化 |
| Optimization of Automatic Control System for Denitration of Coal-fired Units |
| 投稿时间：2019-02-13 |
| DOI：10.16018/j.cnki.cn32-1650/n.201903009 |
| 中文关键词: NOX PID控制器 前馈回路 调节品质 |
| 英文关键词: NOX PID controller feed-forward loop adjustment quality |
| 基金项目: |
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| 中文摘要: |
| 结合DCS自动控制策略优化和硬件设备升级改造，分析研究了某电厂脱硝自动控制系统存在的问题。通过优化控制器理论计算NOX的前馈回路和理论需氨量计算回路，经过在线参数整定，最终完成了自动控制系统的优化。运行情况表明，脱硝出口NOX控制稳定、数值达标；新系统的稳定性和调节品质得到了明显改善。 |
| 英文摘要: |
| Combined with DCS automatic control strategy optimization and hardware equipment upgrade and transformation, the problems of denitration automatic control system in a power plant are analyzed and studied. By optimizing the controller theory to calculate the feed-forward loop of NOX and the theoretical ammonia demand calculation loop, after the online parameter tuning, the optimization of the automatic control system is finally completed. The operation shows that the NOX control of the denitration outlet is stable and the value is up to standard. The stability and adjustment quality of the new system have been significantly improved. |
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