| 基于GPS的变电站内部时间同步方法 |
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| 引用本文： | 王峥,胡敏强,郑建勇.基于GPS的变电站内部时间同步方法[J].电力系统自动化,2002,26(4):36-39,50. |
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| 作者姓名： | 王峥 胡敏强 郑建勇 |
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| 作者单位： | 东南大学电气工程系,江苏省,南京市,210096 |
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| 基金项目： | 东南大学 -南瑞继保公司学位论文基金资助项目 |
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| 摘 要： | 围绕如何利用GPS校时系统实现变电站内部时间同步的问题，提出了2套可行方案。并围绕校时误差这个中心，深入研究了校时过程中的信号传送、CPU中断处理、中断服务程序执行等环节，分析了方案之间的异同点，给出了关于校时误差和校时间隔的定量分析结果，从而确定了它们各自的适用范围。最后扼要地讨论了现场干扰对两种方案校时精度造成的影响以及GPS校时过程中值得注意和进一步思考的问题。
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| 关 键 词： | GPS 同步 校时 误差 |
| 收稿时间： | 1/1/1900 12:00:00 AM |
| 修稿时间： | 1/1/1900 12:00:00 AM |
SYNCHRONIZATION IN THE SUBSTATION BASED ON GLOBAL POSITIONING SYSTEM |
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| Wang Zheng,Hu Minqiang,Zheng Jianyong Southeast U niversity,Nanjing ,China.SYNCHRONIZATION IN THE SUBSTATION BASED ON GLOBAL POSITIONING SYSTEM[J].Automation of Electric Power Systems,2002,26(4):36-39,50. |
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| Authors: | Wang Zheng Hu Minqiang Zheng Jianyong Southeast U niversity Nanjing China |
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| Affiliation: | Wang Zheng,Hu Minqiang,Zheng Jianyong Southeast U niversity,Nanjing 2 10 0 96,China |
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| Abstract: | Two feasible plans of the synchronizing system in the substation both based on the global positioning system are introduced.Signal transferring,the CPU interrupt handling and the execution of the interrupt service routine,which highly affect the error of the synchronization,are thoroughly considered.The com mon place and differences of the two plans are described,and the calibration error and calibration interval of the synchronization are analyzed quantitatively by which the applicable fields for each plan can be determined easily.Finally,a sum mary discussion abouthow the local disturbances affect the calibration accuracy of each plan and what should be attended and studied furtherm ore are given. |
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| Keywords: | GPS synchronization calibration error |
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