励磁调节技术说明书.docx

IAEC-2000型智能自适应
微机励磁控制器技术说明书
宜昌市能达通用电气公司
葛洲坝水力发电厂自动化研究所
华中科技大学
二零零三年一月二十日目录
装置概述··································1
1.1装置特点·································1
1.2主要励磁功能配置······························3
1.3辅助励磁功能配置······························4
1.4主要技术指标····································5
1.5适用范围····································5
1.6使用环境···································9
第二章励磁控制原理·································10
2.1发电机励磁控制系统的作用··························11
2.2励磁反馈控制原理····································11
2.3微机励磁控制关键技术································12
2.4励磁控制规律·······································14
2.4.1电力系统稳定器·····································15
2.4.2线性最优励磁控制LOEC································21
2.4.3自适应最优励磁控制······································22
第三章功能说明·····································30
3.1三种起励方式·······································30
3.2五种运行方式····································31
3.3控制方式在线转换······································33
3.4励磁限制········································33
3.5励磁保护·····································35
3.6自动跟踪········································35
3.7在线机切换···········································36
3.8试验功能·············································36
3.9控制参数调整··········································37
3.10逆变灭磁········································38
第四章软件简介································39
4.1软件组成及编程语言···························39
4.2软件流程图···································39第一章装置概述
IAEC-2000型智能自适应微机励磁控制器由能达通用电气公司与华中科技大学联合研制。是依靠华中科技大学丰富的理论知识、葛洲坝电厂运行维护人员多年的现场经验和能达通用电气公司多年的实际应用经验总结开发出来的新一代发电机智能微机励磁控制器。本控制器适应电力系统朝大机组、大电网方向发展的需要，采用智能自适应最优励磁控制规律，能为电力系统提供良好的阻尼，满足电力系统联网稳定运行的要求。本控制器以“功能完备、可靠性高、检修维护方便、操作简单直观”为设计思想，不但具有常规模拟式励磁控制器的全部调节、控制功能，而且具备常规控制器没有的许多控制、保护、限制、逻辑判断、自诊断、容错、在线整定、参数显示、与现地LCU通讯和开关量的调节、现场调试试验等强大功能，是大、中型同步发电机励磁控制器的理想选择。
本控制器硬件由管理机、工控机、测量单元、逻辑控制单元和电源单元组成。管理机采用研华平板PC，完成人机接口、可视化图形显示、各种参数设置、事件记录、与优化维护系统及监控系统的通讯等。工控机硬件采用具有高抗干扰、高抗振动、4U高度模板的DSP产品，该产品由专业工控机厂家按恶劣的工业现场条件特别设计，硬件设计合理，配置简单清晰，按励磁控制系统的要求双重化，可满足各