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Based on the characteristics of the fully domesticated chip relay protection device’s software and hardware platforms, and addressing the key and difficult points in the testing process, this paper proposes a multi-CPU internal communication testing method for fully domesticated chip relay protection devices. Utilizing a dedicated internal detection module, the method simulates and monitors various normal and abnormal data without altering the original wiring layout, to verify the stability of internal communications between CPU boards. Additionally, this paper presents key technologies of internal communication reliability testing and platform application testing, details test plans for critical applications such as platform self-check, intelligent IO self-check, abnormal reset functions, and memory overflow risks, and summarizes typical on-site problem verification and key testing items. Finally, by comparing and analyzing the differences in key technical indicators between the “nine unified” devices and fully domesticated chip relay protection devices, the study offers insights for the product development of fully domesticated chip relay protection devices.
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本文基于全国产化芯片继电保护装置软硬件平台的特点,针对测试过程中的重点和难点,提出一种全国产化芯片继电保护装置多CPU内部通信测试方法。通过专用内部检测模块,在不改变原有接线布局的前提下,模拟和监视各类正常与异常数据,以验证各CPU板卡间内部通信的稳定性。此外,提出内部通信可靠性测试及平台应用测试的关键技术,给出平台自检、智能IO自检、异常复位功能、内存溢出风险等关键应用的测试方案,并总结现场重点测试项目及典型问题验证内容。最后,通过对比和分析“九统一”装置与全国产化芯片继电保护装置关键技术指标的差异,为全国产化芯片继电保护装置产品研发提供参考。
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27(6): 175-182., articleTitle=阶段式保护原理性失效风险的概率评估方法, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1190715983120707900, tenantId=1146029695717560320, journalId=1190235702286704641, articleId=1190666338545840568, xref=null, ext=[AuthorCompanyExt(id=1190715983124902205, tenantId=1146029695717560320, journalId=1190235702286704641, articleId=1190666338545840568, companyId=1190715983120707900, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=He’nan Source-Grid-Load-Storage Electrical Research Co., Ltd, Xuchang, He’nan 461000), AuthorCompanyExt(id=1190715983129096510, tenantId=1146029695717560320, journalId=1190235702286704641, articleId=1190666338545840568, companyId=1190715983120707900, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=河南源网荷储电气研究院有限公司,河南 许昌 461000)])], figs=[ArticleFig(id=1190715987356954972, tenantId=1146029695717560320, journalId=1190235702286704641, articleId=1190666338545840568, language=EN, label=null, caption=null, figureFileSmall=eXd0dVjWRzCTZzpEZDj8Ww==, figureFileBig=K8pVUPM9Bb7XXF8DkKxawg==, tableContent=null), ArticleFig(id=1190715987457618269, tenantId=1146029695717560320, journalId=1190235702286704641, articleId=1190666338545840568, language=CN, label=图1, caption=
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| 序号 | 项目 | 内容 |
| 1 | 平台自检功能 | 电源自检、双A-D采样、模拟量采样、定值自检、通信回路自检、程序自检、Flash自检等对保护的影响 |
| 2 | 智能IO自检功能 | 出口回路自检、智能IO通信链路自检 |
| 3 | 异常复位功能 | 复位功能正确性、看门狗动作 |
| 4 | 内存相关 | 内存溢出风险、站控层接收命令越界风险、过程层接收命令越界风险、过程层发送命令越界风险 |
| 5 | 时钟功能 | 时钟翻转、时钟同步、整机时钟同步 |
| 6 | 存储相关 | 掉电不丢失功能、存储碎片回收 |
| 7 | 通信异常中断 | 文件传输协议异常中断、配置工具异常中断、103链路异常中断、61850链路异常中断、用户数据报协议连接异常中断 |
), ArticleFig(id=1190715988569108839, tenantId=1146029695717560320, journalId=1190235702286704641, articleId=1190666338545840568, language=CN, label=表1, caption=
重点测试项目
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| 序号 | 项目 | 内容 |
| 1 | 平台自检功能 | 电源自检、双A-D采样、模拟量采样、定值自检、通信回路自检、程序自检、Flash自检等对保护的影响 |
| 2 | 智能IO自检功能 | 出口回路自检、智能IO通信链路自检 |
| 3 | 异常复位功能 | 复位功能正确性、看门狗动作 |
| 4 | 内存相关 | 内存溢出风险、站控层接收命令越界风险、过程层接收命令越界风险、过程层发送命令越界风险 |
| 5 | 时钟功能 | 时钟翻转、时钟同步、整机时钟同步 |
| 6 | 存储相关 | 掉电不丢失功能、存储碎片回收 |
| 7 | 通信异常中断 | 文件传输协议异常中断、配置工具异常中断、103链路异常中断、61850链路异常中断、用户数据报协议连接异常中断 |
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| 项目 | 内容 | 重点关注 |
| 逻辑是否误保持 | 测试动作逻辑、闭锁逻辑在不满足条件时应返回,不应存在误保持的情况 | 对每个保护、功能的逻辑均进行考核;在保护未动作时及已经动作后进行考核 |
| 出口经启动继电器闭锁 | 测试所有用于跳闸的开出、间接用于跳闸的开出经启动继电器闭锁 | 信号开出回路不经启动继电器闭锁 |
| 变压器保护误报CT异常 | 模拟变压器三相电流不平衡,且一相电流低于无电流门槛,是否误报警 | |
| 变压器过励磁保护基准电压使用正确性 | 应采用高压侧额定相电压(铭牌电压) | 将高压侧额定电压值与高压侧PT一次值整定不一致 |
| 线路保护光纤差动保护相关问题 | 任一侧光纤通道异常,两侧装置均应告警;两侧差动保护投退不一致,两侧装置均应告警 | 告警报文、告警触点均正确;测试时分别对压板、控制字进行投退 |
| CPU异常对装置的影响 | 模拟接口CPU异常,不影响保护动作行为;保测一体装置,保护与测控CPU异常互不影响 | |
| CT拖尾对保护的影响 | 对于出口后启动失灵的保护,在区内故障切除后引起CT拖尾时,能及时收跳令;区外故障切除后引起的CT拖尾,保护不误动作 | CT拖尾期间,已经动作的保护能及时收跳令,未动作的保护不能误动作 |
| CT饱和对保护的影响 | 区内故障时,保护应能正确动作,区外故障时,保护可靠不动作 | 线路保护3/2接线时,注意考核分CT饱和的情况 |
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现场典型问题验证内容
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| 项目 | 内容 | 重点关注 |
| 逻辑是否误保持 | 测试动作逻辑、闭锁逻辑在不满足条件时应返回,不应存在误保持的情况 | 对每个保护、功能的逻辑均进行考核;在保护未动作时及已经动作后进行考核 |
| 出口经启动继电器闭锁 | 测试所有用于跳闸的开出、间接用于跳闸的开出经启动继电器闭锁 | 信号开出回路不经启动继电器闭锁 |
| 变压器保护误报CT异常 | 模拟变压器三相电流不平衡,且一相电流低于无电流门槛,是否误报警 | |
| 变压器过励磁保护基准电压使用正确性 | 应采用高压侧额定相电压(铭牌电压) | 将高压侧额定电压值与高压侧PT一次值整定不一致 |
| 线路保护光纤差动保护相关问题 | 任一侧光纤通道异常,两侧装置均应告警;两侧差动保护投退不一致,两侧装置均应告警 | 告警报文、告警触点均正确;测试时分别对压板、控制字进行投退 |
| CPU异常对装置的影响 | 模拟接口CPU异常,不影响保护动作行为;保测一体装置,保护与测控CPU异常互不影响 | |
| CT拖尾对保护的影响 | 对于出口后启动失灵的保护,在区内故障切除后引起CT拖尾时,能及时收跳令;区外故障切除后引起的CT拖尾,保护不误动作 | CT拖尾期间,已经动作的保护能及时收跳令,未动作的保护不能误动作 |
| CT饱和对保护的影响 | 区内故障时,保护应能正确动作,区外故障时,保护可靠不动作 | 线路保护3/2接线时,注意考核分CT饱和的情况 |
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| 项目 | 全国产化芯片 继电保护装置 | “九统一”装置 |
| 电压幅值最大误差采样值/% | 0.326 | 0.183 |
| 动作值精度 | 定值整定 精度较低 | 定值整定 精度较高 |
| 动作时间(仅投差动,定值1A,施加2A差流)/ms | 最大值:26.7 平均值:26.2 | 最大值:31.7 平均值:30.4 |
| 动作时间(仅投距离,接地距离Ⅰ段定值5Ω,施加阻抗3.5∠80°Ω)/ms | 最大值:26.2 平均值:25.7 | 最大值:28.2 平均值:27.7 |
| 动作时间(距离与差动同时投入)/ms | 最大值:26.3 平均值:25.8 | 最大值:28.0 平均值:27.2 |
| CPU主任务运行时间/ms | [1.67, 5.00] | [3.33, 5.00] |
| CPU主任务转圈时间/ms | [3.33, 5.00] | [6.66, 8.33] |
| CPU主任务休眠时间/ms | [1.66, 3.33] | [3.33, 5.00] |
| 静态功耗/W | 30.82 | 25.90 |
| 差动动作时功耗/W | 42.01 | 38.25 |
| CPU温升/K | 15.9 | 9.9 |
| FPGA温升/K | 15.9 | 9.9 |
| 电源芯片温升/K | 23.4 | 7.4 |
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全国产化芯片继电保护装置与“九统一”装置对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 全国产化芯片 继电保护装置 | “九统一”装置 |
| 电压幅值最大误差采样值/% | 0.326 | 0.183 |
| 动作值精度 | 定值整定 精度较低 | 定值整定 精度较高 |
| 动作时间(仅投差动,定值1A,施加2A差流)/ms | 最大值:26.7 平均值:26.2 | 最大值:31.7 平均值:30.4 |
| 动作时间(仅投距离,接地距离Ⅰ段定值5Ω,施加阻抗3.5∠80°Ω)/ms | 最大值:26.2 平均值:25.7 | 最大值:28.2 平均值:27.7 |
| 动作时间(距离与差动同时投入)/ms | 最大值:26.3 平均值:25.8 | 最大值:28.0 平均值:27.2 |
| CPU主任务运行时间/ms | [1.67, 5.00] | [3.33, 5.00] |
| CPU主任务转圈时间/ms | [3.33, 5.00] | [6.66, 8.33] |
| CPU主任务休眠时间/ms | [1.66, 3.33] | [3.33, 5.00] |
| 静态功耗/W | 30.82 | 25.90 |
| 差动动作时功耗/W | 42.01 | 38.25 |
| CPU温升/K | 15.9 | 9.9 |
| FPGA温升/K | 15.9 | 9.9 |
| 电源芯片温升/K | 23.4 | 7.4 |
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