A Low Cost GPS Time Sensor for use in Power System Control

用于电力系统控制的低成本 GPS 时间传感器

• 批准号: 9302403
• 负责人: Alison Brown
• 金额: $ 30万
• 依托单位: THE NAVSYS CORPORATION
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-03-01 至 1996-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9302403&HistoricalAwards=false
• 关键词: Low; Cost; GPS; Time; Sensor

9302403 Brown A low cost GPS Time sensor is proposed to be developed which will be suitable for power system fault detection and control. GPS provides a highly precise time reference which allows data to be synchronized to within 100 nanoseconds between substations and control centers. Applications of precise time in power control include data logging, relay testing, fault isolation and phase angle measurements. Failures can be isolated in a grid to a precision of 100 meters by measuring the relative time of arrival of a fault at two stations. Phase angle measurements can be determined to a precision of 40 micro-rad. Currently, the least expensive GPS timing receivers suitable for power system control cost over $10,000. Such equipment would be very expensive to install at tens of thousands of substations throughout the electric power grids. It is proposed under this effort to develop a low cost precise time synchronization GPS sensor for use in electrical power system monitoring. The proposed sensor will provide a highly reliable, time reference accurate to 100 nanoseconds for a cost of less than $1,500. ***

提出了一种适用于电力系统故障检测与控制的低成本GPS时间传感器。 GPS提供了一个高度精确的时间基准，使数据能够在变电站和控制中心之间同步到100纳秒。 精确时间在电力控制中的应用包括数据记录、继电器测试、故障隔离和相角测量。 通过测量故障到达两个站的相对时间，可以将电网中的故障隔离到100米的精度。 相位角测量可以被确定为40微弧度的精度。 目前，适用于电力系统控制的最便宜的GPS定时接收器的成本超过10，000美元。 这种设备安装在整个电网的数万个变电站将是非常昂贵的。 在此基础上，提出了开发一种低成本的精确时间同步GPS传感器用于电力系统监测。 拟议的传感器将提供高度可靠的时间基准，精确到100纳秒，成本不到1500美元。 ***