基于SIS的发电厂负荷监控和分配

国电宁夏石嘴山发电有限责任公司（简称石电公司）的厂级监控信息系统（SIS）与“全国燃煤示范电厂”基建工程同步建设、同步投入使用。石电公司SIS可根据自动发电控制（AGC）下达的全厂负荷指令、各机组的实时煤耗率曲线、全厂各机组实时运行状态等条件进行优化计算，实现机组负荷的优化分配；并可依据锅炉、汽轮机和煤耗的优化曲线提出优化操作指导，使机组运行在最佳状况。该系统设计先进、结构合理、安全防护措施符合耍求．系统整体性能指标达到了有关标准的要求。投入运行3a来，对指导发电设备运行和设备检修维护发挥了重要作用。介绍石电公司SIS的特点，总体结构及进行多台机组负荷管理和分配的情况。

Load supervision and distribution of thermal power plant based on the SIS

The SIS in GuoDian Ningxia Shizuishan Power Co., Ltd. was constructed and operated synchronously with the infrastructure construction of National Coal-fired Demonstration Project. The SIS realizes the optimal load distribution with optimization calculation of plant load commands given by the Automatic Generation Control (AGO, real-time coal consumption curve and operation conditions. The SIS is of advanced design, reasonable structure and in accordance with safety protection specifications and related standards. As a result, it has played an important role in load management and equipment maintenance. In this paper, the features, overall structure and operation experience were introduced and illustrated in detail.