| 引用本文: | 袁明军,江浩,黎强,黄少雄,王治华.四统一四规范同步相量测量装置关键技术研究[J].电力系统保护与控制,2019,47(4):182-187.[点击复制] |
| YUAN Mingjun,JIANG Hao,LI Qiang,HUANG Shaoxiong,WANG Zhihua.Research on key technology of four unified four standard phasor measurement unit[J].Power System Protection and Control,2019,47(4):182-187[点击复制] |
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| 摘要: |
| 智能电网建设的全面深入推进，对变电站自动化系统安全可靠运行和智能分析应用提出了新需求。为此，国家电网对自动化产品提出“四统一四规范”要求。介绍一种满足同步相量测量装置“四统一四规范”要求的装置，论述装置功能模块基本架构。阐述了装置关键技术研究内容，提出一种抑制带外频率的同步相量实时计算模型，入网测试结果显示该算法远优于标准要求。提出基于Hamming窗的双插值FFT次/超同步振荡监测算法，测试结果显示其有效性。揭示了直流换流站伪低频振荡/次同步振荡产生机理，对直流换流站提出采样频率要求。描述了和电流计算及品质处理、多间隔PT/CT断线判断逻辑等功能。最后介绍了装置信息模型及通信服务相关内容。 |
| 关键词: 同步相量测量装置 四统一四规范 带外频率 次/超同步振荡 双插值FFT |
| DOI：10.7667/PSPC180216 |
| 投稿时间：2018-03-03修订日期：2018-09-08 |
| 基金项目:国家电网公司总部科技项目(520900160006);国网安徽省电力公司科技项目“面向未来的厂站自动化技术研究” |
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| Research on key technology of four unified four standard phasor measurement unit |
| YUAN Mingjun,JIANG Hao,LI Qiang,HUANG Shaoxiong,WANG Zhihua |
| (CYG SUNRUI Co., Ltd., Shenzhen 518004, China;State Grid Anhui Electric Power Corporation, Hefei 230022, China;Electric Power Dispatching and Control Center of State Grid Shanghai Municipal Electric Power Company, Shanghai 200122, China) |
| Abstract: |
| The comprehensive and in-depth development of smart grid has brought new demands for the safe and reliable operation and intelligent analysis of substation automation system. For this reason, State Grid Corporation of China has put forward the “four unification, four standard” requirements for automation products. This paper introduces a device that meets the requirements of the phasor measurement unit “four unification, four standard”. The basic structure of the function module is discussed. The research content of the key technology of the device is expounded. A real time calculation model of synchronous phasor for restraining out of band frequency is introduced, and testing results show that this algorithm is far better than the standard requirements. A double interpolating FFT subsynchronous and supersynchronous oscillation monitoring algorithm based on Hamming window is proposed, and simulation results show its effectiveness. The mechanism of the pseudo low frequency oscillation / subsynchronous oscillation in DC converter station is revealed, and the sampling frequency requirement for DC converter station is proposed. The functions of current calculation, quality processing, multiple interval PT/CT line judgment logic and so on are described. Finally, the device information model and the related content of communication service are introduced. This work is supported by Science and Technology Project of the Headquarter of State Grid Corporation of China (No. 520900160006). |
| Key words: phasor measurement unit four unified four standard out of band frequency subsynchronous and supersynchronous oscillations double interpolation FFT |
