Article(id=1156983785796493531, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1156983783787421903, articleNumber=null, orderNo=null, doi=10.12404/j.issn.1671-1815.2401713, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1710172800000, receivedDateStr=2024-03-12, revisedDate=1731686400000, revisedDateStr=2024-11-16, acceptedDate=null, acceptedDateStr=null, onlineDate=1753776030253, onlineDateStr=2025-07-29, pubDate=1739808000000, pubDateStr=2025-02-18, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1753776030253, onlineIssueDateStr=2025-07-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1753776030253, creator=13701087609, updateTime=1753776030253, updator=13701087609, issue=Issue{id=1156983783787421903, tenantId=1146029695717560320, journalId=1146123166801305609, year='2025', volume='25', issue='5', pageStart='1753', pageEnd='2192', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1753776029774, creator=13701087609, updateTime=1769691857141, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1223739602251436918, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1156983783787421903, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1223739602251436919, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1156983783787421903, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=1927, endPage=1935, ext={EN=ArticleExt(id=1156983786589216992, articleId=1156983785796493531, tenantId=1146029695717560320, journalId=1146123166801305609, language=EN, title=Stability Analysis and Parameter Optimization of Virtual Synchronous Machine Based on Small Signal Model, columnId=1156264600770302582, journalTitle=Science Technology and Engineering, columnName=Papers·Energy and Power Engineering, runingTitle=null, highlight=null, articleAbstract=
To enhance the grid connection stability of virtual synchronous machines, a global optimization design method for virtual synchronous machine control parameters was proposed. Firstly, a small-signal model of the virtual synchronous generator with virtual exciter and governor was established, and the system eigenvalues were obtained by solving the state matrix. Secondly, the sensitivity of the controller parameters to the position of eigenvalues was studied, and a wide range of parameter optimization was conducted using genetic algorithms based on the main eigenvalue positions. Finally, analytical solutions of the model and MATLAB/Simulink simulation data were compared. The results show that significant improvements in frequency stability can be achieved by optimizing a wide range of virtual synchronous machine parameters. After optimization, the system response transient stability time is 0.25 s, only 5% of the transient stability time with general parameters, and the frequency stability improves noticeably with load changes.
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为提高虚拟同步机并网稳定性,提出了一种虚拟同步机控制参数的全局优化设计方法。首先,建立具有虚拟励磁机和调速器的虚拟同步发电机小信号模型,通过求解状态矩阵得到系统的特征值。其次,研究特征值位置对控制器参数的敏感性,并利用遗传算法在主特征值位置的基础上对参数进行大范围优化。最后,将模型的解析计算解和MATLAB/Simulink仿真数据进行对比分析,结果表明,通过优化大范围的虚拟同步机(virtual synchronous generator,VSG)参数,可以显著提高频率稳定性,参数优化后系统响应瞬态稳定时间为0.25 s,仅为一般参数时系统响应瞬态稳定时间的5%,当负载变化时,频率稳定性有明显提高。
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何婷(1987—),女,汉族,甘肃民勤人,硕士,助理研究员。研究方向:光伏发电技术。E-mail:heting@gneri.com.cn。
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何婷(1987—),女,汉族,甘肃民勤人,硕士,助理研究员。研究方向:光伏发电技术。E-mail:heting@gneri.com.cn。
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1 Gansu Natural Energy Research Institute, Lanzhou 730046, China), AuthorCompanyExt(id=1225467165118218497, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156983785796493531, companyId=1225467165067886846, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 甘肃自然能源研究所, 兰州 730046)]), AuthorCompany(id=1225467165319545093, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156983785796493531, xref=2, ext=[AuthorCompanyExt(id=1225467165336322311, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156983785796493531, companyId=1225467165319545093, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 Gansu Key Laboratory of Solar Energy Utilization, Lanzhou 730046, China), AuthorCompanyExt(id=1225467165353099530, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156983785796493531, companyId=1225467165319545093, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 甘肃太阳能利用重点实验室, 兰州 730046)]), AuthorCompany(id=1225467165558620431, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156983785796493531, xref=3, ext=[AuthorCompanyExt(id=1225467165562814736, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156983785796493531, companyId=1225467165558620431, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3 State Grid Gansu Electric Power Company, Lanzhou 730046, China), AuthorCompanyExt(id=1225467165571203348, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156983785796493531, companyId=1225467165558620431, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3 国网甘肃省电力公司, 兰州 730046)])], figs=[ArticleFig(id=1225467174840615572, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156983785796493531, language=EN, label=Fig.1, caption=
VSG topology circuit, figureFileSmall=zAPHUhFAhvD1cOTiiZKgsg==, figureFileBig=2nfSnNPcbKqOMtRp+LLCeQ==, tableContent=null), ArticleFig(id=1225467175033553568, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156983785796493531, language=CN, label=图1, caption=
VSG主电路拓扑, figureFileSmall=zAPHUhFAhvD1cOTiiZKgsg==, figureFileBig=2nfSnNPcbKqOMtRp+LLCeQ==, tableContent=null), ArticleFig(id=1225467175209714354, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156983785796493531, language=EN, label=Fig.2, caption=
Eigenvalue sensitivity analysis, figureFileSmall=ozGsOD+3I4I71LkD5UQqNg==, figureFileBig=vlxct/TXZAmH4cYr4N4n0A==, tableContent=null), ArticleFig(id=1225467175406846664, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156983785796493531, language=CN, label=图2, caption=
特征值灵敏度分析, figureFileSmall=ozGsOD+3I4I71LkD5UQqNg==, figureFileBig=vlxct/TXZAmH4cYr4N4n0A==, tableContent=null), ArticleFig(id=1225467175549453011, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156983785796493531, language=EN, label=Fig.3, caption=
The position of the principal eigenvalues of the steady-state points of the general and optimal parameters, figureFileSmall=fIthgj4F3Xyf5O08VPK+7g==, figureFileBig=J55oJRJ6IcA6xJsZ1WIAeQ==, tableContent=null), ArticleFig(id=1225467175692059360, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156983785796493531, language=CN, label=图3, caption=
一般参数和最优参数的稳态点主特征值的位置, figureFileSmall=fIthgj4F3Xyf5O08VPK+7g==, figureFileBig=J55oJRJ6IcA6xJsZ1WIAeQ==, tableContent=null), ArticleFig(id=1225467175977272053, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156983785796493531, language=EN, label=Fig.4, caption=
Comparison of solutions to ordinary differential equations under general parameters and Simulink simulation, figureFileSmall=tCECbUVkj8OSv19CLrqwhA==, figureFileBig=bjp/qEVEm25Y57eK+TMcCg==, tableContent=null), ArticleFig(id=1225467176191181568, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156983785796493531, language=CN, label=图4, caption=
一般参数下常微分方程解与Simulink仿真比较, figureFileSmall=tCECbUVkj8OSv19CLrqwhA==, figureFileBig=bjp/qEVEm25Y57eK+TMcCg==, tableContent=null), ArticleFig(id=1225467176421868302, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156983785796493531, language=EN, label=Fig.5, caption=
Comparison of solution to ordinary differential equation under global optimization parameters and Simulink simulation, figureFileSmall=dW3H78SX4URJtSnhja4Sfw==, figureFileBig=cXNNIGaiel//5wS5j8qeLw==, tableContent=null), ArticleFig(id=1225467176602223386, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156983785796493531, language=CN, label=图5, caption=
全局优化参数下常微分方程解与Simulink仿真比较, figureFileSmall=dW3H78SX4URJtSnhja4Sfw==, figureFileBig=cXNNIGaiel//5wS5j8qeLw==, tableContent=null), ArticleFig(id=1225467177944400694, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156983785796493531, language=EN, label=Fig.6, caption=
Sensitivity analysis of eigenvalues when load changes, figureFileSmall=Wzlo5O/8CYmmOoI6DXgP+g==, figureFileBig=NCwOep93IHw262Njp8xOPA==, tableContent=null), ArticleFig(id=1225467178154115901, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156983785796493531, language=CN, label=图6, caption=
负荷变化时特征值灵敏度分析, figureFileSmall=Wzlo5O/8CYmmOoI6DXgP+g==, figureFileBig=NCwOep93IHw262Njp8xOPA==, tableContent=null), ArticleFig(id=1225467178342859600, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156983785796493531, language=EN, label=Table 1, caption=
VSG single machine load independent microgrid system parameters
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 | 参数 | 数值 |
滤波器 参数 | Lf | 4 mH | 励磁机 参数 | Ta | 0.05 |
| Rf | 0.05 Ω | Ka | 24 |
| Cf | 3 μF | Vref | 1 |
| Re | 0.05 Ω | 调速器 参数 | Tsv | 0.05 |
| Le | 2.4 mH | Tch | 0.05 |
虚拟同步 机参数 | xd | 1.56 | Rd | 0.005 |
| xdd | 0.296 | Pref | 1 |
| xq | 2 | 逆变器 参数 | Vdc | 100$\sqrt{2}$ |
| xqd | 0.4 | Tinv | 0.000 1 |
| Td0 | 3.7 | Kinv | 0.5 |
| Tq0 | 0.6 | 负载参数 | RL | 128 Ω |
| J | 40 | XL | 96 Ω |
| D | 0.2 | 仿真参数 | Ts | 0.000 01 |
| ω | 314 | fs | 10 kHz |
| 基准值 | Sbase | 1 000 VA | PLoad | 800 W |
| Vnom | 400 V | QLoad | 600 Var |
| Ibase | 6.12 A | solver | Ode23tb |
), ArticleFig(id=1225467178560963433, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156983785796493531, language=CN, label=表1, caption=
VSG 单机负荷独立微电网系统参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 | 参数 | 数值 |
滤波器 参数 | Lf | 4 mH | 励磁机 参数 | Ta | 0.05 |
| Rf | 0.05 Ω | Ka | 24 |
| Cf | 3 μF | Vref | 1 |
| Re | 0.05 Ω | 调速器 参数 | Tsv | 0.05 |
| Le | 2.4 mH | Tch | 0.05 |
虚拟同步 机参数 | xd | 1.56 | Rd | 0.005 |
| xdd | 0.296 | Pref | 1 |
| xq | 2 | 逆变器 参数 | Vdc | 100$\sqrt{2}$ |
| xqd | 0.4 | Tinv | 0.000 1 |
| Td0 | 3.7 | Kinv | 0.5 |
| Tq0 | 0.6 | 负载参数 | RL | 128 Ω |
| J | 40 | XL | 96 Ω |
| D | 0.2 | 仿真参数 | Ts | 0.000 01 |
| ω | 314 | fs | 10 kHz |
| 基准值 | Sbase | 1 000 VA | PLoad | 800 W |
| Vnom | 400 V | QLoad | 600 Var |
| Ibase | 6.12 A | solver | Ode23tb |
), ArticleFig(id=1225467178741318526, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156983785796493531, language=EN, label=Table 2, caption=
Global optimization control parameters
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 | 参数 | 数值 | 参数 | 数值 |
| Td0 | 1.475 2 | xqd | 0.017 32 | Rd | 0.005 79 |
| Tq0 | 0.403 5 | J | 5.717 | Tch | 0.000 122 |
| xd | 0.063 5 | D | 0.979 | Tsv | 0.000 143 |
| xq | 2.944 9 | Rsg | 0.969 | Ta | 0.000 103 |
| xdd | 0.005 8 | Ka | 1.7 | | |
), ArticleFig(id=1225467178934256529, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156983785796493531, language=CN, label=表2, caption=
全局优化控制参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 | 参数 | 数值 | 参数 | 数值 |
| Td0 | 1.475 2 | xqd | 0.017 32 | Rd | 0.005 79 |
| Tq0 | 0.403 5 | J | 5.717 | Tch | 0.000 122 |
| xd | 0.063 5 | D | 0.979 | Tsv | 0.000 143 |
| xq | 2.944 9 | Rsg | 0.969 | Ta | 0.000 103 |
| xdd | 0.005 8 | Ka | 1.7 | | |
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