Article(id=1223204290550943798, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223204286050452333, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20221378, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1657036800000, receivedDateStr=2022-07-06, revisedDate=1659542400000, revisedDateStr=2022-08-04, acceptedDate=null, acceptedDateStr=null, onlineDate=1769564228904, onlineDateStr=2026-01-28, pubDate=1684944000000, pubDateStr=2023-05-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769564228904, onlineIssueDateStr=2026-01-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769564228904, creator=13701087609, updateTime=1769564228904, updator=13701087609, issue=Issue{id=1223204286050452333, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='5', pageStart='1', pageEnd='220', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769564227831, creator=13701087609, updateTime=1769567742010, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1223219026013323264, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223204286050452333, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1223219026013323265, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223204286050452333, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=207, endPage=210, ext={EN=ArticleExt(id=1223204290857128020, articleId=1223204290550943798, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Research on New Control Strategy for Sub-synchronous Oscillation Suppression of High Power Rectifier in Weak Current Network, columnId=1222940986234364233, journalTitle=Water Resources and Power, columnName=ELECTRICAL ENGINEERING, runingTitle=null, highlight=null, articleAbstract=

In the weak current network, due to the large impedance characteristics of the power grid, the impedance parameters in the line change the key parameters of the rectifier control, affecting the overall performance of the rectifier, which may lead to the unstable output of the rectifier, and the output presents the characteristics of sub-synchronous oscillation. On the basis of not increasing the hardware compensation system, this paper proposes a control strategy that can effectively suppress the sub-synchronous oscillation. Based on the mathematical model, the AC current component of the sub-synchronous oscillation is extracted through the low-frequency filter. After d/q transformation, the d/q current component of the sub-synchronous oscillation is PI closed-loop controlled. The output value of the PI regulator of the subsynchronous oscillation component is decoupled and compensated, and then multiplied by the compensation coefficient to obtain the d/q compensation component of the voltage. The output of the original current inner loop is compensated. A simulation and test results show that the control strategy is effective and feasible, which can suppress sub-synchronous components.

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在弱电网中,由于电网的阻抗特性较大,线路中阻抗参数改变了整流器控制的关键参数,影响了整流器的整体性能,可能会导致整流器输出不稳定,使输出呈现次同步振荡特性。为此,在不增加硬件补偿系统的基础上,提出了一种能够有效抑制次同步振荡的控制策略,该抑制策略从数学模型角度出发,通过低频滤波器提取出次同步振荡交流电流分量,进行d/q变换后,将该次同步振荡的d/q电流分量进行PI闭环控制,次同步振荡分量的PI调节器输出值进行解耦补偿后乘以补偿系数得到电压的d/q补偿分量,对原电流内环的输出进行补偿。仿真和试验结果表明,该抑制策略有效、可行,能够有效抑制次同步分量。

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彭国敬(1987-),男,硕士、高级工程师,研究方向为电力电子技术在新能源中应用,E-mail:

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彭国敬(1987-),男,硕士、高级工程师,研究方向为电力电子技术在新能源中应用,E-mail:

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彭国敬(1987-),男,硕士、高级工程师,研究方向为电力电子技术在新能源中应用,E-mail:

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适用于弱电网中大功率整流器次同步振荡抑制的新型控制策略研究
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彭国敬 , 孙祖勇 , 朱丹 , 雷磊
水电能源科学 | 电气工程 2023,41(5): 207-210
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水电能源科学 | 电气工程 2023, 41(5): 207-210
适用于弱电网中大功率整流器次同步振荡抑制的新型控制策略研究
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彭国敬 , 孙祖勇, 朱丹, 雷磊
作者信息
  • 南瑞集团有限公司,江苏 南京 211106
  • 彭国敬(1987-),男,硕士、高级工程师,研究方向为电力电子技术在新能源中应用,E-mail:

Research on New Control Strategy for Sub-synchronous Oscillation Suppression of High Power Rectifier in Weak Current Network
Guo-jing PENG , Zu-yong SUN, Dan ZHU, Lei LEI
Affiliations
  • NARI Group Co Ltd, Nanjing 211106, China
出版时间: 2023-05-25 doi: 10.20040/j.cnki.1000-7709.2023.20221378
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在弱电网中,由于电网的阻抗特性较大,线路中阻抗参数改变了整流器控制的关键参数,影响了整流器的整体性能,可能会导致整流器输出不稳定,使输出呈现次同步振荡特性。为此,在不增加硬件补偿系统的基础上,提出了一种能够有效抑制次同步振荡的控制策略,该抑制策略从数学模型角度出发,通过低频滤波器提取出次同步振荡交流电流分量,进行d/q变换后,将该次同步振荡的d/q电流分量进行PI闭环控制,次同步振荡分量的PI调节器输出值进行解耦补偿后乘以补偿系数得到电压的d/q补偿分量,对原电流内环的输出进行补偿。仿真和试验结果表明,该抑制策略有效、可行,能够有效抑制次同步分量。

弱电网  /  次同步振荡  /  低频提取  /  抑制控制策略

In the weak current network, due to the large impedance characteristics of the power grid, the impedance parameters in the line change the key parameters of the rectifier control, affecting the overall performance of the rectifier, which may lead to the unstable output of the rectifier, and the output presents the characteristics of sub-synchronous oscillation. On the basis of not increasing the hardware compensation system, this paper proposes a control strategy that can effectively suppress the sub-synchronous oscillation. Based on the mathematical model, the AC current component of the sub-synchronous oscillation is extracted through the low-frequency filter. After d/q transformation, the d/q current component of the sub-synchronous oscillation is PI closed-loop controlled. The output value of the PI regulator of the subsynchronous oscillation component is decoupled and compensated, and then multiplied by the compensation coefficient to obtain the d/q compensation component of the voltage. The output of the original current inner loop is compensated. A simulation and test results show that the control strategy is effective and feasible, which can suppress sub-synchronous components.

weak power grid  /  sub-synchronous oscillation  /  low frequency extraction  /  suppression control strategyy
彭国敬, 孙祖勇, 朱丹, 雷磊. 适用于弱电网中大功率整流器次同步振荡抑制的新型控制策略研究. 水电能源科学, 2023 , 41 (5) : 207 -210 . DOI: 10.20040/j.cnki.1000-7709.2023.20221378
Guo-jing PENG, Zu-yong SUN, Dan ZHU, Lei LEI. Research on New Control Strategy for Sub-synchronous Oscillation Suppression of High Power Rectifier in Weak Current Network[J]. Water Resources and Power, 2023 , 41 (5) : 207 -210 . DOI: 10.20040/j.cnki.1000-7709.2023.20221378
2023年第41卷第5期
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doi: 10.20040/j.cnki.1000-7709.2023.20221378
  • 接收时间:2022-07-06
  • 首发时间:2026-01-28
  • 出版时间:2023-05-25
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  • 收稿日期:2022-07-06
  • 修回日期:2022-08-04
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    南瑞集团有限公司,江苏 南京 211106
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2种不同金属材料的力学参数

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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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