Article(id=1153695643932549599, tenantId=1146029695717560320, journalId=1146031654075715584, issueId=1153695641046864317, articleNumber=null, orderNo=null, doi=10.13234/j.issn.2095-2805.2024.5.170, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1627056000000, receivedDateStr=2021-07-24, revisedDate=1630339200000, revisedDateStr=2021-08-31, acceptedDate=1632326400000, acceptedDateStr=2021-09-23, onlineDate=1752992076142, onlineDateStr=2025-07-20, pubDate=1727625600000, pubDateStr=2024-09-30, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1752992076142, onlineIssueDateStr=2025-07-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1752992076142, creator=13701087609, updateTime=1752992076142, updator=13701087609, issue=Issue{id=1153695641046864317, tenantId=1146029695717560320, journalId=1146031654075715584, year='2024', volume='22', issue='5', pageStart='1', pageEnd='330', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1752992075453, creator=13701087609, updateTime=1753780969288, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1157004501661078352, tenantId=1146029695717560320, journalId=1146031654075715584, issueId=1153695641046864317, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1157004501661078353, tenantId=1146029695717560320, journalId=1146031654075715584, issueId=1153695641046864317, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=170, endPage=181, ext={EN=ArticleExt(id=1153695644377145825, articleId=1153695643932549599, tenantId=1146029695717560320, journalId=1146031654075715584, language=EN, title=Design and Implementation of Dual-converter for Connecting DFIG to DC Microgrid, columnId=1152281492550987902, journalTitle=Journal of Power Supply, columnName=Renewable Energy System, runingTitle=null, highlight=null, articleAbstract=
In view of the serious current harmonics in a doubly-fed induction generator (DFIG)-DC connection system and the large loss of a dual-voltage source inverter (VSI) connection system, a novel dual-converter connection system which connects a three-phase DFIG to DC microgrid is designed. First, the topology, pulse-width modulation (PWM) measurement and DFIG model of the dual-converter connection system are described in detail. Different from the traditional connection systems, the proposed connection system adopts an open-end winding structure and uses a three-bridge arm rectifier on each side of the stator winding. Considering that these arms are usually composed of insulated gate bipolar transistors (IGBTs), a diode is used instead of the IGBT in the rectifier to decrease the number of control switches and reduce the cost. Second, the control strategies for a stator-side converter (SSC) and a rotor-side converter(RSC) under the new topology are given. Third, a comparison with the DFIG-DC connection system and the dual-VSI connection system is performed through simulations, and results show the advantages of the proposed method in terms of current harmonic distortion, torque ripple and semiconductor loss. Finally, experimental verification was carried out on a 0.56 kW DFIG, and results also verified the advantages of this method in terms of loss, harmonics and torque ripple.
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针对双馈感应式发电机 DFIG(doubly-fed induction generator)-DC 连接系统电流谐波严重、双 VSI 连接系统损耗大等问题,设计了1种将三相 DFIG连接到直流微电网的新型双变换器连接系统。首先,详细阐述了双变换器连接系统的拓扑结构、脉宽调制 PWM(pulse-width modulation)测量和 DFIG 模型等工作原理。与传统连接系统不同,所提连接系统采用开放端绕组结构,在定子绕组的每一侧使用1个三桥臂整流器,这些桥臂通常由绝缘栅双极晶体管 IGBT(insulated gate bipolar transistor)组成,为了减少控制开关的数量和降低成本,采用二极管替代了1个整流器中的IGBT;然后,给出了新型拓扑结构下 SSC 和RSC的控制策略;接着,与DFIG-DC连接系统和双 VSI 连接系统在电流谐波畸变、转矩脉动和半导体损耗等方面进行了仿真比较,说明所提方法优越性;最后,针对 0.56 kW DFIG 进行实验验证,结果表明了所提方法在损耗、谐波以及转矩脉动的优势。
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苗晓阳(1976-),男,通信作者,硕士,高级工程师。研究方向:电力系统自动化。E-mail:miaoxiaoyang8212@163.com。 |
李冰然(1986-),男,硕士,工程师。研究方向:微电网控制。E-mail: 603911547@qq.com。
傅洪全(1981-),男,硕士,高级工程师。研究方向:变流器控制。E-mail: 3103921113@qq.com。
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1 Hebi Power Supply Company, State Grid Henan Electric Power Company Hebi 458030 China), AuthorCompanyExt(id=1154032962732544872, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, companyId=1154032962426360673, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 国网河南省电力公司 鹤壁供电公司 鹤壁 458030)]), AuthorCompany(id=1154032962782876522, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, xref=2, ext=[AuthorCompanyExt(id=1154032962787070827, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, companyId=1154032962782876522, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 Skills Training Center, State Grid Jiangsu Electric Power Co., Ltd. Suzhou 215000 China), AuthorCompanyExt(id=1154032962791265132, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, companyId=1154032962782876522, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 国家电网江苏省电力有限公司 技能培训中心 苏州 215000)])], figs=[ArticleFig(id=1154032971418948554, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, language=EN, label=Fig. 1, caption=
System connecting dual-converter DFIG-based WECS to DC microgrid, figureFileSmall=Q6nNEAs2U6JdxaS4D1iJfQ==, figureFileBig=HqQ4Cm6YF8P7Xr/Wfbv/1g==, tableContent=null), ArticleFig(id=1154032971490251724, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, language=CN, label=图1, caption=
双变换器 DFIG-based WECS 到直流微电网的连接系统, figureFileSmall=Q6nNEAs2U6JdxaS4D1iJfQ==, figureFileBig=HqQ4Cm6YF8P7Xr/Wfbv/1g==, tableContent=null), ArticleFig(id=1154032971557360590, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, language=EN, label=Fig. 2, caption=
SSC circuit models, figureFileSmall=Z2BFeMdkAS4EtP2uMEOGmw==, figureFileBig=hcnUFCfc6Vf6UwuK79F55Q==, tableContent=null), ArticleFig(id=1154032971616080847, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, language=CN, label=图2, caption=
SSC 电路模型, figureFileSmall=Z2BFeMdkAS4EtP2uMEOGmw==, figureFileBig=hcnUFCfc6Vf6UwuK79F55Q==, tableContent=null), ArticleFig(id=1154032971674801105, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, language=EN, label=Fig. 3, caption=
Equivalent circuit of DFIG in $d - q$ arbitrary reference frame, figureFileSmall=PT1Or0RNtwNZ+FDcmetrAQ==, figureFileBig=zasNwGJjWZfxiEcSn+gpFg==, tableContent=null), ArticleFig(id=1154032971729327059, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, language=CN, label=图3, caption=
${d}- q$ 参考系中 DFIG 的等效电路, figureFileSmall=PT1Or0RNtwNZ+FDcmetrAQ==, figureFileBig=zasNwGJjWZfxiEcSn+gpFg==, tableContent=null), ArticleFig(id=1154032971817407445, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, language=EN, label=Fig. 4, caption=
Block diagram of control system for the proposed converter, figureFileSmall=CxjD6qAq1xxzL4Zj7CK8dw==, figureFileBig=llkkDKGXer7LJw0P6O2toA==, tableContent=null), ArticleFig(id=1154032971892904919, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, language=CN, label=图4, caption=
所提变换器的控制系统方框图, figureFileSmall=CxjD6qAq1xxzL4Zj7CK8dw==, figureFileBig=llkkDKGXer7LJw0P6O2toA==, tableContent=null), ArticleFig(id=1154032971989373914, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, language=EN, label=Fig. 5, caption=
Block diagram of rotor current control system, figureFileSmall=bjViJD1RY3MAqSGGFBOI7g==, figureFileBig=EVWTSBuwaZVLmvZJVIGXGA==, tableContent=null), ArticleFig(id=1154032972060677083, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, language=CN, label=图5, caption=
转子电流控制系统框图, figureFileSmall=bjViJD1RY3MAqSGGFBOI7g==, figureFileBig=EVWTSBuwaZVLmvZJVIGXGA==, tableContent=null), ArticleFig(id=1154032972123591645, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, language=EN, label=Fig. 6, caption=
Block diagram of active and reactive power control system, figureFileSmall=x/rYC2NaEHXsMaYEJXpjbg==, figureFileBig=sfIcr/OPBp7tfwmvBBHMaw==, tableContent=null), ArticleFig(id=1154032972190700511, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, language=CN, label=图6, caption=
有功无功控制系统框图, figureFileSmall=x/rYC2NaEHXsMaYEJXpjbg==, figureFileBig=sfIcr/OPBp7tfwmvBBHMaw==, tableContent=null), ArticleFig(id=1154032972291363809, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, language=EN, label=Fig. 7, caption=
Simulation waveforms of operation of three kinds of connection systems, figureFileSmall=N743WVUy4+Kj8FEeBLQmwg==, figureFileBig=/Y8cR0khDpmqhZcWIA3LxA==, tableContent=null), ArticleFig(id=1154032972408804321, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, language=CN, label=图7, caption=
三类连接系统的运行仿真波形, figureFileSmall=N743WVUy4+Kj8FEeBLQmwg==, figureFileBig=/Y8cR0khDpmqhZcWIA3LxA==, tableContent=null), ArticleFig(id=1154032972459135970, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, language=EN, label=Fig. 8, caption=
Transient simulation waveforms under active and reactive power control, figureFileSmall=LmOKf87L9jyZrUHZVA5Xnw==, figureFileBig=dB62hWH55qwOMvjjZMyN2w==, tableContent=null), ArticleFig(id=1154032972555604964, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, language=CN, label=图8, caption=
有功功率和无功功率控制的暂态仿真波形, figureFileSmall=LmOKf87L9jyZrUHZVA5Xnw==, figureFileBig=dB62hWH55qwOMvjjZMyN2w==, tableContent=null), ArticleFig(id=1154032972614325221, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, language=EN, label=Fig. 9, caption=
Simulation waveforms of steady-state results for the proposed topology, figureFileSmall=uSd6f+ZI6pppvTV0n51R3Q==, figureFileBig=GwyChCR4E98GOAr3Vlv1Ug==, tableContent=null), ArticleFig(id=1154032972668851175, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, language=CN, label=图9, caption=
所示拓扑稳态结果的仿真波形, figureFileSmall=uSd6f+ZI6pppvTV0n51R3Q==, figureFileBig=GwyChCR4E98GOAr3Vlv1Ug==, tableContent=null), ArticleFig(id=1154032972740154345, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, language=EN, label=Fig. 10, caption=
Experimental setup, figureFileSmall=teXkNTIYhasu3YTDNrxj6g==, figureFileBig=01p9zwQcwhiyf6Ysz/7DgQ==, tableContent=null), ArticleFig(id=1154032972828234733, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, language=CN, label=图10, caption=
实验设置, figureFileSmall=teXkNTIYhasu3YTDNrxj6g==, figureFileBig=01p9zwQcwhiyf6Ysz/7DgQ==, tableContent=null), ArticleFig(id=1154032972882760688, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, language=EN, label=Fig. 11, caption=
Experimental waveforms of steady-state results for the proposed topology, figureFileSmall=BOilnbn20FWDKMTAJVw5sA==, figureFileBig=UQzXwLMb9b3MPom3GtYOlA==, tableContent=null), ArticleFig(id=1154032972970841074, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, language=CN, label=图11, caption=
该拓扑的稳态实验波形, figureFileSmall=BOilnbn20FWDKMTAJVw5sA==, figureFileBig=UQzXwLMb9b3MPom3GtYOlA==, tableContent=null), ArticleFig(id=1154032973075698675, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, language=EN, label=Tab. 1, caption=
Switching statuses of converter and corresponding output voltage, figureFileSmall=null, figureFileBig=null, tableContent=
| 开关状态 | 输出电压 | 允许状态 | 输出 |
| ${q}_{\text{sak }}$ | ${d}_{\text{sbk }}$ | ${v}_{\text{sak0 }}$ | ${v}_{\text{sbk0 }}$ | ${i}_{\mathrm{{sk}}}\geq 0$ | ${i}_{\mathrm{{sk}}}< 0$ | ${v}_{\mathrm{{sk}}}$ |
| 0 | 0 | -E/2 | -E/2 | - | $\left\lbrack {0,0}\right\rbrack$ | 0 |
| 0 | 1 | -E/2 | $E/2$ | $\left\lbrack {0,1}\right\rbrack$ | - | $- E$ |
| 1 | 0 | $E/2$ | -E/2 | - | $\left\lbrack {1,0}\right\rbrack$ | $E$ |
| 1 | 1 | $E/2$ | $E/2$ | $\left\lbrack {1,1}\right\rbrack$ | - | 0 |
), ArticleFig(id=1154032973167973367, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, language=CN, label=表1, caption=
变换器开关状态和输出电压, figureFileSmall=null, figureFileBig=null, tableContent=
| 开关状态 | 输出电压 | 允许状态 | 输出 |
| ${q}_{\text{sak }}$ | ${d}_{\text{sbk }}$ | ${v}_{\text{sak0 }}$ | ${v}_{\text{sbk0 }}$ | ${i}_{\mathrm{{sk}}}\geq 0$ | ${i}_{\mathrm{{sk}}}< 0$ | ${v}_{\mathrm{{sk}}}$ |
| 0 | 0 | -E/2 | -E/2 | - | $\left\lbrack {0,0}\right\rbrack$ | 0 |
| 0 | 1 | -E/2 | $E/2$ | $\left\lbrack {0,1}\right\rbrack$ | - | $- E$ |
| 1 | 0 | $E/2$ | -E/2 | - | $\left\lbrack {1,0}\right\rbrack$ | $E$ |
| 1 | 1 | $E/2$ | $E/2$ | $\left\lbrack {1,1}\right\rbrack$ | - | 0 |
), ArticleFig(id=1154032973251859449, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, language=EN, label=Tab. 2, caption=
Comparison of features among connection systems, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | IGBTs | 二极管 | 直流端口电压 |
| DFIG-DC | 6 | 6 | $\sqrt{3}\sqrt{2}{V}_{\mathrm{s}}$ |
| 双 VSI | 12 | - | $\sqrt{3}\sqrt{2}{V}_{\mathrm{s}}$ |
| 本文方法 | 12 | 6 | $\sqrt{2}{V}_{\mathrm{s}}$ |
), ArticleFig(id=1154032973306385403, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, language=CN, label=表2, caption=
连接系统特性比较, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | IGBTs | 二极管 | 直流端口电压 |
| DFIG-DC | 6 | 6 | $\sqrt{3}\sqrt{2}{V}_{\mathrm{s}}$ |
| 双 VSI | 12 | - | $\sqrt{3}\sqrt{2}{V}_{\mathrm{s}}$ |
| 本文方法 | 12 | 6 | $\sqrt{2}{V}_{\mathrm{s}}$ |
), ArticleFig(id=1154032973369299964, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, language=EN, label=Tab. 3, caption=
Parameters of DFIG simulation experiment, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 | 参数 | 数值 |
| 定子电阻${r}_{\mathrm{s}}/\Omega$ | 15.1 | 转子电阻${r}_{\mathrm{r}}/\Omega$ | 6.22 |
| 定子自感${l}_{\mathrm{s}}/\mathrm{{mH}}$ | 563.7 | 转子自感${l}_{\mathrm{r}}/\mathrm{{mH}}$ | 543.7 |
| 定转子互感${l}_{\mathrm{m}}/\mathrm{{mH}}$ | 523.8 | 参考相电压${V}_{\mathrm{s}}/\mathrm{V}$ | 220 |
| 额定功率${P}_{\mathrm{n}}/\mathrm{{kW}}$ | 0.56 | 频率${f}_{\mathrm{s}}/\mathrm{{Hz}}$ | 60 |
| 极对数$p$ | 1 | 定转子绕组匝比 | 1.82 |
), ArticleFig(id=1154032973440603133, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, language=CN, label=表3, caption=
DFIG 的仿真实验参数, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 | 参数 | 数值 |
| 定子电阻${r}_{\mathrm{s}}/\Omega$ | 15.1 | 转子电阻${r}_{\mathrm{r}}/\Omega$ | 6.22 |
| 定子自感${l}_{\mathrm{s}}/\mathrm{{mH}}$ | 563.7 | 转子自感${l}_{\mathrm{r}}/\mathrm{{mH}}$ | 543.7 |
| 定转子互感${l}_{\mathrm{m}}/\mathrm{{mH}}$ | 523.8 | 参考相电压${V}_{\mathrm{s}}/\mathrm{V}$ | 220 |
| 额定功率${P}_{\mathrm{n}}/\mathrm{{kW}}$ | 0.56 | 频率${f}_{\mathrm{s}}/\mathrm{{Hz}}$ | 60 |
| 极对数$p$ | 1 | 定转子绕组匝比 | 1.82 |
), ArticleFig(id=1154032973503517694, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, language=EN, label=Tab. 4, caption=
Power loss under normal operation of DFIG, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | ${P}_{cd}/\%$ | ${P}_{\mathrm{{sw}}}/\%$ | ${P}_{\text{to }}/\%$ |
| DFIG-DC | 0.69 | 7.68 | 8.37 |
| 双 VSI | 0.69 | 14.40 | 15.09 |
| 本文方法 | 1.03 | 8.46 | 9.49 |
), ArticleFig(id=1154032973562237952, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153695643932549599, language=CN, label=表4, caption=
DFIG 正常运行下的功率损耗, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | ${P}_{cd}/\%$ | ${P}_{\mathrm{{sw}}}/\%$ | ${P}_{\text{to }}/\%$ |
| DFIG-DC | 0.69 | 7.68 | 8.37 |
| 双 VSI | 0.69 | 14.40 | 15.09 |
| 本文方法 | 1.03 | 8.46 | 9.49 |
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