{"title":"基于混合二阶和三阶广义积分器的改进Ip-Iq谐波检测算法","authors":"Chaokun Gu, Xin-yan Zhang, T. Tong","doi":"10.12783/dteees/eece2019/31531","DOIUrl":null,"url":null,"abstract":"Abstract. Aiming at the influence of DC component and high-order harmonics on harmonic current detection accuracy, an improved ip-iq harmonic detection algorithm based on mixed second-and third-order generalized integrator is proposed in this paper. The MSTOGI filter is added to the traditional ip-iq structure, which effectively filters the DC component of the input signal and suppresses the high-order harmonics. The phase-locked loop of MSTOGI can provide a stable grid voltage frequency when the grid voltage contains high-order harmonics and DC components, so that the harmonic current can be detected more accurately. The traditional ip-iq method and the general SOGI-based ip-iq method are compared and analyzed by simulation examples, which verifies the effectiveness and reliability of the proposed harmonic detection method when the power grid contains DC component and high-order harmonic.","PeriodicalId":11324,"journal":{"name":"DEStech Transactions on Environment, Energy and Earth Sciences","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2019-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Improved Ip-Iq Harmonic Detection Algorithm Based on Mixed Second-and Third-Order Generalized Integrator\",\"authors\":\"Chaokun Gu, Xin-yan Zhang, T. Tong\",\"doi\":\"10.12783/dteees/eece2019/31531\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract. Aiming at the influence of DC component and high-order harmonics on harmonic current detection accuracy, an improved ip-iq harmonic detection algorithm based on mixed second-and third-order generalized integrator is proposed in this paper. The MSTOGI filter is added to the traditional ip-iq structure, which effectively filters the DC component of the input signal and suppresses the high-order harmonics. The phase-locked loop of MSTOGI can provide a stable grid voltage frequency when the grid voltage contains high-order harmonics and DC components, so that the harmonic current can be detected more accurately. The traditional ip-iq method and the general SOGI-based ip-iq method are compared and analyzed by simulation examples, which verifies the effectiveness and reliability of the proposed harmonic detection method when the power grid contains DC component and high-order harmonic.\",\"PeriodicalId\":11324,\"journal\":{\"name\":\"DEStech Transactions on Environment, Energy and Earth Sciences\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-10-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"DEStech Transactions on Environment, Energy and Earth Sciences\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.12783/dteees/eece2019/31531\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"DEStech Transactions on Environment, Energy and Earth Sciences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.12783/dteees/eece2019/31531","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Improved Ip-Iq Harmonic Detection Algorithm Based on Mixed Second-and Third-Order Generalized Integrator
Abstract. Aiming at the influence of DC component and high-order harmonics on harmonic current detection accuracy, an improved ip-iq harmonic detection algorithm based on mixed second-and third-order generalized integrator is proposed in this paper. The MSTOGI filter is added to the traditional ip-iq structure, which effectively filters the DC component of the input signal and suppresses the high-order harmonics. The phase-locked loop of MSTOGI can provide a stable grid voltage frequency when the grid voltage contains high-order harmonics and DC components, so that the harmonic current can be detected more accurately. The traditional ip-iq method and the general SOGI-based ip-iq method are compared and analyzed by simulation examples, which verifies the effectiveness and reliability of the proposed harmonic detection method when the power grid contains DC component and high-order harmonic.
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