Responsibility division method of harmonic sources in coal mine power system
In view of the problem of collinearity of harmonic emission level evaluating method of coal mine power system based on multivariate linear regression, which leaded to the problem that evaluation result was greatly affected by abnormal value problem, ridge regression method was proposed to estimate u...
| Main Authors: | , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Industry and Mine Automation
2018-10-01
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| Series: | Gong-kuang zidonghua |
| Subjects: | |
| Online Access: | http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.2018040089 |
| _version_ | 1797868981388836864 |
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| author | GAO Yun SU Jingwei |
| author_facet | GAO Yun SU Jingwei |
| author_sort | GAO Yun |
| collection | DOAJ |
| description | In view of the problem of collinearity of harmonic emission level evaluating method of coal mine power system based on multivariate linear regression, which leaded to the problem that evaluation result was greatly affected by abnormal value problem, ridge regression method was proposed to estimate user side harmonic emission level and to divide responsibility of harmonic source. The principle of ridge regression estimation method was analyzed, and system side and user side equivalent circuits were established. Regression equation was established according to the equivalent circuit, and the regression coefficient was obtained by the ridge regression operation, and then user side harmonic emission level was obtained according to the ridge regression calculation result. The simulation results show that compared with the binary linear regression, the ridge regression estimation method can solve the collinearity problem more effectively, make accuracy of regression coefficient higher, thus obtaining more accurate harmonic emission level. |
| first_indexed | 2024-04-10T00:04:20Z |
| format | Article |
| id | doaj.art-4b8a500b8eb7410db8a137f1347b41bc |
| institution | Directory Open Access Journal |
| issn | 1671-251X |
| language | zho |
| last_indexed | 2024-04-10T00:04:20Z |
| publishDate | 2018-10-01 |
| publisher | Editorial Department of Industry and Mine Automation |
| record_format | Article |
| series | Gong-kuang zidonghua |
| spelling | doaj.art-4b8a500b8eb7410db8a137f1347b41bc2023-03-17T01:19:03ZzhoEditorial Department of Industry and Mine AutomationGong-kuang zidonghua1671-251X2018-10-014410616510.13272/j.issn.1671-251x.2018040089Responsibility division method of harmonic sources in coal mine power systemGAO YunSU JingweiIn view of the problem of collinearity of harmonic emission level evaluating method of coal mine power system based on multivariate linear regression, which leaded to the problem that evaluation result was greatly affected by abnormal value problem, ridge regression method was proposed to estimate user side harmonic emission level and to divide responsibility of harmonic source. The principle of ridge regression estimation method was analyzed, and system side and user side equivalent circuits were established. Regression equation was established according to the equivalent circuit, and the regression coefficient was obtained by the ridge regression operation, and then user side harmonic emission level was obtained according to the ridge regression calculation result. The simulation results show that compared with the binary linear regression, the ridge regression estimation method can solve the collinearity problem more effectively, make accuracy of regression coefficient higher, thus obtaining more accurate harmonic emission level.http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.2018040089coal mine power systemharmonic emission levelresponsibility division of harmonic sourcespoint of common couplingridge regressionbinary linear regressio |
| spellingShingle | GAO Yun SU Jingwei Responsibility division method of harmonic sources in coal mine power system Gong-kuang zidonghua coal mine power system harmonic emission level responsibility division of harmonic sources point of common coupling ridge regression binary linear regressio |
| title | Responsibility division method of harmonic sources in coal mine power system |
| title_full | Responsibility division method of harmonic sources in coal mine power system |
| title_fullStr | Responsibility division method of harmonic sources in coal mine power system |
| title_full_unstemmed | Responsibility division method of harmonic sources in coal mine power system |
| title_short | Responsibility division method of harmonic sources in coal mine power system |
| title_sort | responsibility division method of harmonic sources in coal mine power system |
| topic | coal mine power system harmonic emission level responsibility division of harmonic sources point of common coupling ridge regression binary linear regressio |
| url | http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.2018040089 |
| work_keys_str_mv | AT gaoyun responsibilitydivisionmethodofharmonicsourcesincoalminepowersystem AT sujingwei responsibilitydivisionmethodofharmonicsourcesincoalminepowersystem |