输电线路故障测距实用算法研究
针对输电线路双端故障测距算法需要进行双曲函数复杂的计算、牛顿-拉夫逊迭代和二分搜索计算量大、需要精确线路参数等问题,提出了一种新的适合于输电线路差动保护装置的精确故障测距算法。算法原理简单,经过简单的复数运算就可以计算出输电线路的精确参数、两侧非同步采样系数和故障距离。采用正序故障分量来计算故障距离,能适应各种故障类型,计算结果收敛快,不受过渡电阻影响。...
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| Published in | 电力系统保护与控制 Vol. 42; no. 16; pp. 52 - 58 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
西南交通大学电气工程学院，四川 成都 610031
2014
国网四川省电力公司电力调度控制中心，四川 成都 610041%西南交通大学电气工程学院,四川 成都,610031%国网四川省电力公司电力调度控制中心,四川 成都,610041 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1674-3415 |
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| Abstract | 针对输电线路双端故障测距算法需要进行双曲函数复杂的计算、牛顿-拉夫逊迭代和二分搜索计算量大、需要精确线路参数等问题,提出了一种新的适合于输电线路差动保护装置的精确故障测距算法。算法原理简单,经过简单的复数运算就可以计算出输电线路的精确参数、两侧非同步采样系数和故障距离。采用正序故障分量来计算故障距离,能适应各种故障类型,计算结果收敛快,不受过渡电阻影响。 |
|---|---|
| AbstractList | 针对输电线路双端故障测距算法需要进行双曲函数复杂的计算、牛顿-拉夫逊迭代和二分搜索计算量大、需要精确线路参数等问题,提出了一种新的适合于输电线路差动保护装置的精确故障测距算法。算法原理简单,经过简单的复数运算就可以计算出输电线路的精确参数、两侧非同步采样系数和故障距离。采用正序故障分量来计算故障距离,能适应各种故障类型,计算结果收敛快,不受过渡电阻影响。 TM773; 针对输电线路双端故障测距算法需要进行双曲函数复杂的计算、牛顿-拉夫逊迭代和二分搜索计算量大、需要精确线路参数等问题，提出了一种新的适合于输电线路差动保护装置的精确故障测距算法。算法原理简单，经过简单的复数运算就可以计算出输电线路的精确参数、两侧非同步采样系数和故障距离。采用正序故障分量来计算故障距离，能适应各种故障类型，计算结果收敛快，不受过渡电阻影响。 |
| Abstract_FL | A-novel-accurate-location-of-faults-on-power-transmission-line-with-two-end-phasor-measurement-used-in-differential-protection-device-is-proposed.-The-new-algorithm-may-solve-the-shortages-such-as-complex-calculations-of-calculating-the-hyperbolic-functions,-large-amount-of-calculation-with-the-Newton-Raphson-iteration-and-binary-search-and-needing-accurate-line-parameters.-The-algorithm-is-simple-in-principle,-it-can-calculate-the-accurate-parameters-of-the-transmission-line,-coefficient-of-asynchronous-sampling-and-fault-distance-through-simple-complex-operation.-The-algorithm-uses-the-positive-sequence-fault-component-to-calculate-the-fault-distance,-is-able-to-adapt-to-all-type-of-fault,-and-the-calculation-results-have-fast-convergence-and-do-not-influenced-by-the-transition-resistance. |
| Author | 王利平 王晓茹 王伟 陈军 余锐 |
| AuthorAffiliation | 西南交通大学电气工程学院,四川成都610031 国网四川省电力公司电力调度控制中心,四川成都610041 |
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| Author_FL | WANG Xiao-ru CHEN Jun WANG Li-ping WANG Wei YU Rui |
| Author_FL_xml | – sequence: 1 fullname: WANG Li-ping – sequence: 2 fullname: WANG Xiao-ru – sequence: 3 fullname: WANG Wei – sequence: 4 fullname: CHEN Jun – sequence: 5 fullname: YU Rui |
| Author_xml | – sequence: 1 fullname: 王利平 王晓茹 王伟 陈军 余锐 |
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| Keywords | 差动保护装置 faults location 非同步采样系数 differential protection device 故障测距 输电线路 coefficient of unsynchronized sampling transmission line |
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| Notes | faults location; transmission line; coefficient of unsynchronized sampling; differential protection device A novel accurate location of faults on power transmission line with two-end phasor measurement used in differential protection device is proposed. The new algorithm may solve the shortages such as complex calculations of calculating the hyperbolic functions, large amount of calculation with the Newton-Raphson iteration and binary search and needing accurate line parameters. The algorithm is simple in principle, it can calculate the accurate parameters of the transmission line, coefficient of asynchronous sampling and fault distance through simple complex operation. The algorithm uses the positive sequence fault component to calculate the fault distance, is able to adapt to all type of fault, and the calculation results have fast convergence and do not influenced by the transition resistance. 41-1401/TM WANG Li-ping, WANG Xiao-ru, WANG Wei, CHEN Jun, YU Rui （1. School of Electrical Engineering, Southwest Jia |
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| PublicationTitle_FL | Power System Protection and Control |
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| Publisher | 西南交通大学电气工程学院，四川 成都 610031 国网四川省电力公司电力调度控制中心，四川 成都 610041%西南交通大学电气工程学院,四川 成都,610031%国网四川省电力公司电力调度控制中心,四川 成都,610041 |
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| SubjectTerms | 差动保护装置 故障测距 输电线路 非同步采样系数 |
| Title | 输电线路故障测距实用算法研究 |
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