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Aimed at the problem that the particle swarm optimization (PSO) algorithm has a poor global search capability and is easy to fall into local optimum when it is applied to the selective harmonic elimination pulse width modulation (SHEPWM) of an inverter, an improved PSO algorithm is proposed. The vertical crossover operation of genetic algorithm is introduced to the search process, and the elite retention strategy is used to improve the global and local search capabilities of the algorithm and retain excellent individuals, thereby increasing the accuracy of switching angle and improving the performance of SHEPWM. This algorithm is used to solve the SHEPWM nonlinear transcendental equation of a novel asymmetric cascaded switched capacitor multi-level inverter, which overcomes problems such as the high dependence of traditional numerical methods on initial value and the low accuracy of the traditional PSO algorithm in solving the switching angle. Finally, the feasibility of the proposed topology and the effectiveness of the proposed algorithm applied to SHEPWM were verified by simulation and experimental results.
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针对粒子群优化 PSO(particle swarm optimization)算法在应用到逆变器的特定谐波、消除脉宽调制SHEPWM(vselective harmonic elimination pulse-width modulation)所存在的全局搜索能力差、且容易陷入局部最优等问题,提出1种改进型F 通过在搜索过程中引入遗传算法中的垂直交叉运算,以及采用精英保留策略来提高算法的全局搜索能力、局部搜索能力和保留优秀的个体,由此提高开关角精确度,改善SHEPWM的性能。使用所提算法对新型非对称级联开关电容多电平逆变器的 SHEPWM 非线性超越方程进行求解,解决了传统数值法对初值依赖性高及传统 PSO 求解开关角精确度低等问题。仿真及实验结果验证了所提拓扑结构的可行性和所提算法应用到SHEPWM 中的有效性。
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 |
张枫鑫(1995-),男,硕士研究生。研究方向:电力电子与电力传动。E-mail: 577063754@qq.com。 |
叶远茂(1984-),男,通信作者,博士,教授。研究方向:电力电子与电力传动。E-mail:eeyeym@gdut.edu.cn。
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张枫鑫(1995-),男,硕士研究生。研究方向:电力电子与电力传动。E-mail: 577063754@qq.com。
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张枫鑫(1995-),男,硕士研究生。研究方向:电力电子与电力传动。E-mail: 577063754@qq.com。
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叶远茂(1984-),男,通信作者,博士,教授。研究方向:电力电子与电力传动。E-mail:eeyeym@gdut.edu.cn。
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叶远茂(1984-),男,通信作者,博士,教授。研究方向:电力电子与电力传动。E-mail:eeyeym@gdut.edu.cn。
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1998: 69-73., articleTitle=A modified particle swarm optimizer, refAbstract=null)], funds=[Fund(id=1154032501493321948, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, awardId=51907033, language=EN, fundingSource=National Natural Science Foundation of China(51907033), fundOrder=null, country=null), Fund(id=1154032501564625118, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, awardId=51907033, language=CN, fundingSource=国家自然科学基金资助项目(51907033), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1154032496913141847, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, xref=null, ext=[AuthorCompanyExt(id=1154032496921530456, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, companyId=1154032496913141847, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=School of Automation Guangdong University of Technology Guangzhou 510006 China), AuthorCompanyExt(id=1154032496934113370, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, companyId=1154032496913141847, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=广东工业大学 自动化学院 广州 510006)])], figs=[ArticleFig(id=1154032498892853384, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=EN, label=Fig. 1, caption=
Inverter topology, figureFileSmall=XrXrM6H2OBYO0JkQUI6+xA==, figureFileBig=BfakI9j00v45NZQr9hZMyg==, tableContent=null), ArticleFig(id=1154032498955767946, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=CN, label=图1, caption=
逆变器结构拓扑, figureFileSmall=XrXrM6H2OBYO0JkQUI6+xA==, figureFileBig=BfakI9j00v45NZQr9hZMyg==, tableContent=null), ArticleFig(id=1154032499022876812, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=EN, label=Fig. 2, caption=
Working principle for switched capacitor, figureFileSmall=a6lFmsONedjfU0GZ+rZ2Ww==, figureFileBig=Ju5GhVwvOCcJrVovtfeokg==, tableContent=null), ArticleFig(id=1154032499077402766, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=CN, label=图2, caption=
开关电容工作原理, figureFileSmall=a6lFmsONedjfU0GZ+rZ2Ww==, figureFileBig=Ju5GhVwvOCcJrVovtfeokg==, tableContent=null), ArticleFig(id=1154032499127734415, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=EN, label=Fig. 3, caption=
Output voltage of stepped wave, figureFileSmall=6fCeD9rx2kA6utrIJEfpRA==, figureFileBig=QVLdUE4M+/lkyuO/aqDUUQ==, tableContent=null), ArticleFig(id=1154032499199037584, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=CN, label=图3, caption=
阶梯波输出电压, figureFileSmall=6fCeD9rx2kA6utrIJEfpRA==, figureFileBig=QVLdUE4M+/lkyuO/aqDUUQ==, tableContent=null), ArticleFig(id=1154032499261952145, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=EN, label=Fig. 4, caption=
Relationship of base wave amplitude of output voltage with different $M$, figureFileSmall=YXYv/Y92uELCzqy762OclA==, figureFileBig=gfy1xJcNxyh+FjSSkU/wIw==, tableContent=null), ArticleFig(id=1154032499324866706, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=CN, label=图4, caption=
不同调制比下的输出电压基波幅值关系, figureFileSmall=YXYv/Y92uELCzqy762OclA==, figureFileBig=gfy1xJcNxyh+FjSSkU/wIw==, tableContent=null), ArticleFig(id=1154032499387781267, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=EN, label=Fig. 5, caption=
Vertical crossover operation, figureFileSmall=5S+CzazatMRmEJlihIRhyA==, figureFileBig=SPItFdhg5mvtj325RR9VFg==, tableContent=null), ArticleFig(id=1154032499454890132, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=CN, label=图5, caption=
垂直交叉操作, figureFileSmall=5S+CzazatMRmEJlihIRhyA==, figureFileBig=SPItFdhg5mvtj325RR9VFg==, tableContent=null), ArticleFig(id=1154032499513610389, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=EN, label=Fig. 6, caption=
Flow chart of improved PSO algorithm, figureFileSmall=1GePrWqCOKToVuw4CZkzAw==, figureFileBig=fjcVWXE9OcTE6e3vOEXBTQ==, tableContent=null), ArticleFig(id=1154032499580719254, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=CN, label=图6, caption=
改进型 PSO 算法流程, figureFileSmall=1GePrWqCOKToVuw4CZkzAw==, figureFileBig=fjcVWXE9OcTE6e3vOEXBTQ==, tableContent=null), ArticleFig(id=1154032499643633816, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=EN, label=Fig. 7, caption=
Trajectories of angles ${\theta }_{1}- {\theta }_{10}$, figureFileSmall=K6valMNscd9nYlUThHwd1w==, figureFileBig=oVfV24y2rxz9m08nmKaF/g==, tableContent=null), ArticleFig(id=1154032499714936984, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=CN, label=图7, caption=
${\theta }_{1}\sim {\theta }_{10}$ 角度轨迹, figureFileSmall=K6valMNscd9nYlUThHwd1w==, figureFileBig=oVfV24y2rxz9m08nmKaF/g==, tableContent=null), ArticleFig(id=1154032499769462938, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=EN, label=Fig. 8, caption=
THD curves under three algorithms, figureFileSmall=BgEJ9nKEfpvCTwldD80nqw==, figureFileBig=ia0kPSlQXhzufqMqr0jDcQ==, tableContent=null), ArticleFig(id=1154032499886903450, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=CN, label=图8, caption=
3种算法 THD 值变化曲线, figureFileSmall=BgEJ9nKEfpvCTwldD80nqw==, figureFileBig=ia0kPSlQXhzufqMqr0jDcQ==, tableContent=null), ArticleFig(id=1154032499974983835, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=EN, label=Fig. 9, caption=
Output voltage waveforms obtained using improved PSO algorithm, figureFileSmall=rnoJtBk/jt2NB38Nbe0wQQ==, figureFileBig=NxlIQMegXKrnmmfujarOlA==, tableContent=null), ArticleFig(id=1154032500025315484, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=CN, label=图9, caption=
改进型 PSO 输出电压波形, figureFileSmall=rnoJtBk/jt2NB38Nbe0wQQ==, figureFileBig=NxlIQMegXKrnmmfujarOlA==, tableContent=null), ArticleFig(id=1154032500113395869, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=EN, label=Fig. 10, caption=
Output voltage spectrum when $M ={1.0}$, figureFileSmall=5T+00UhXmQPDFf60kXAcJg==, figureFileBig=5FK5FL8eOukIzn6Pva0UoA==, tableContent=null), ArticleFig(id=1154032500180504735, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=CN, label=图10, caption=
输出电压频谱 $\left({M ={1.0}}\right)$, figureFileSmall=5T+00UhXmQPDFf60kXAcJg==, figureFileBig=5FK5FL8eOukIzn6Pva0UoA==, tableContent=null), ArticleFig(id=1154032500230836385, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=EN, label=Fig. 11, caption=
Load voltage, load current and output voltage from high- and low-voltage unit when $M ={1.0}$, figureFileSmall=/I1sMfZ72cLJ9qiExV6NHA==, figureFileBig=qnbUY7+IAM4rt5Lsma8Ibw==, tableContent=null), ArticleFig(id=1154032500306333859, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=CN, label=图11, caption=
负载电压、负载电流和高低压单元输出电压 $\left({M ={1.0}}\right)$, figureFileSmall=/I1sMfZ72cLJ9qiExV6NHA==, figureFileBig=qnbUY7+IAM4rt5Lsma8Ibw==, tableContent=null), ArticleFig(id=1154032500390219944, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=EN, label=Fig. 12, caption=
Load voltage, load current and output voltage from high- and low-voltage unit when $M ={0.3}$, figureFileSmall=c0LOZYyOCNL6OFxDsFeZPg==, figureFileBig=PDk8lzHTgKafAIO+2fxBtw==, tableContent=null), ArticleFig(id=1154032500444745901, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=CN, label=图12, caption=
负载电压、负载电流和高低压单元输出电压 $\left({M ={0.3}}\right)$, figureFileSmall=c0LOZYyOCNL6OFxDsFeZPg==, figureFileBig=PDk8lzHTgKafAIO+2fxBtw==, tableContent=null), ArticleFig(id=1154032500516049073, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=EN, label=Fig. 13, caption=
Capacitor voltage ripple when $M ={1.0}$, figureFileSmall=oAEaNONdgmURMk32HdUJSw==, figureFileBig=dzpDwvwwdaypMqptazH+oQ==, tableContent=null), ArticleFig(id=1154032500574769331, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=CN, label=图13, caption=
电容电压纹波 $\left({M ={1.0}}\right)$, figureFileSmall=oAEaNONdgmURMk32HdUJSw==, figureFileBig=dzpDwvwwdaypMqptazH+oQ==, tableContent=null), ArticleFig(id=1154032500633489592, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=EN, label=Fig. 14, caption=
Capacitor voltage ripple when $M ={0.3}$, figureFileSmall=43MCVB6P7L1NElRCcmuegQ==, figureFileBig=oPMxBdSw1EuHf1/ku/6nqQ==, tableContent=null), ArticleFig(id=1154032500692209853, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=CN, label=图14, caption=
电容电压纹波 $\left({M ={0.3}}\right)$, figureFileSmall=43MCVB6P7L1NElRCcmuegQ==, figureFileBig=oPMxBdSw1EuHf1/ku/6nqQ==, tableContent=null), ArticleFig(id=1154032500750930111, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=EN, label=Fig. 15, caption=
Voltage stress of switches when $M ={1.0}$, figureFileSmall=LV/x+6b31vTsxwz0Oq7r2g==, figureFileBig=dffpY0V/fh1+zVA2Wbj6dQ==, tableContent=null), ArticleFig(id=1154032500809650370, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=CN, label=图15, caption=
开关管电压应力 $\left({M ={1.0}}\right)$, figureFileSmall=LV/x+6b31vTsxwz0Oq7r2g==, figureFileBig=dffpY0V/fh1+zVA2Wbj6dQ==, tableContent=null), ArticleFig(id=1154032500868370628, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=EN, label=Fig. 16, caption=
Voltage stress of switches when $M ={0.3}$, figureFileSmall=ODvA7uufRmDJVrzfclXoNQ==, figureFileBig=D5lB+KFrK6HrZ2eB1RF65w==, tableContent=null), ArticleFig(id=1154032500922896582, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=CN, label=图16, caption=
开关管电压应力 $\left({M ={0.3}}\right)$, figureFileSmall=ODvA7uufRmDJVrzfclXoNQ==, figureFileBig=D5lB+KFrK6HrZ2eB1RF65w==, tableContent=null), ArticleFig(id=1154032500973228233, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=EN, label=Fig. 17, caption=
Output voltage spectrum analysis when $M ={1.0}$, figureFileSmall=EwabLCf7B7qieQ7TCfWoQA==, figureFileBig=mnoba8oXOjwY58woaZvJ3g==, tableContent=null), ArticleFig(id=1154032501036142795, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=CN, label=图17, caption=
输出电压频谱分析 $\left({M ={1.0}}\right)$, figureFileSmall=EwabLCf7B7qieQ7TCfWoQA==, figureFileBig=mnoba8oXOjwY58woaZvJ3g==, tableContent=null), ArticleFig(id=1154032501099057358, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=EN, label=Tab. 1, caption=
Working statuses of low-voltage unit, figureFileSmall=null, figureFileBig=null, tableContent=
| 工作状态 | 开关管状态 | 电容器${C}_{1}$ | 电容器${C}_{2}$ | 输出电压 |
| ${\mathrm{S}}_{1}$ | ${\mathrm{S}}_{1}$ | ${\mathrm{S}}_{1}$ | ${\mathrm{S}}_{1}$ | ${\mathrm{T}}_{1}$ | ${\mathrm{T}}_{1}$ | ${\mathrm{T}}_{1}$ | ${\mathrm{T}}_{1}$ | ${\mathrm{S}}_{\mathrm{D}1}$ | ${\mathrm{S}}_{\mathrm{D}1}$ |
| W1 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 放电 | 放电 | ${3E}$ |
| W2 | 0 | 1 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 充电 | 放电 | ${2E}$ |
| W3 | 1 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 放电 | 充电 | ${2E}$ |
| W4 | 1 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 0 | 放电 | 充电 | $E$ |
| W5 | 1 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 1 | 0 | 充电 | 充电 | 0 |
| W6 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 1 | 0 | 充电 | 充电 | 0 |
| W7 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 充电 | 充电 | $- E$ |
| W8 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 放电 | 充电 | $-{2E}$ |
| W9 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | 1 | 充电 | 放电 | $-{2E}$ |
| W10 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 放电 | 放电 | $-{3E}$ |
), ArticleFig(id=1154032501170360528, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=CN, label=表1, caption=
低压单元工作状态, figureFileSmall=null, figureFileBig=null, tableContent=
| 工作状态 | 开关管状态 | 电容器${C}_{1}$ | 电容器${C}_{2}$ | 输出电压 |
| ${\mathrm{S}}_{1}$ | ${\mathrm{S}}_{1}$ | ${\mathrm{S}}_{1}$ | ${\mathrm{S}}_{1}$ | ${\mathrm{T}}_{1}$ | ${\mathrm{T}}_{1}$ | ${\mathrm{T}}_{1}$ | ${\mathrm{T}}_{1}$ | ${\mathrm{S}}_{\mathrm{D}1}$ | ${\mathrm{S}}_{\mathrm{D}1}$ |
| W1 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 放电 | 放电 | ${3E}$ |
| W2 | 0 | 1 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 充电 | 放电 | ${2E}$ |
| W3 | 1 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 放电 | 充电 | ${2E}$ |
| W4 | 1 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 0 | 放电 | 充电 | $E$ |
| W5 | 1 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 1 | 0 | 充电 | 充电 | 0 |
| W6 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 1 | 0 | 充电 | 充电 | 0 |
| W7 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 充电 | 充电 | $- E$ |
| W8 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 放电 | 充电 | $-{2E}$ |
| W9 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | 1 | 充电 | 放电 | $-{2E}$ |
| W10 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 放电 | 放电 | $-{3E}$ |
), ArticleFig(id=1154032501250052306, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=EN, label=Tab. 2, caption=
Cascaded scheme, figureFileSmall=null, figureFileBig=null, tableContent=
| | | | | | ${U}_{0}$ | | | | | |
| 电压单元 | 0 | $\pm E$ | $\pm {2E}$ | $\pm {3E}$ | $\pm {4E}$ | $\pm {5E}$ | $\pm {6E}$ | $\pm {7E}$ | $\pm {8E}$ | $\pm {9E}$ | $\pm {10E}$ |
| 高压单元 | 0 | 0 | 0 | 0 | $\pm {7E}$ | $\pm {7E}$ | $\pm {7E}$ | $\pm {7E}$ | $\pm {7E}$ | $\pm {7E}$ | $\pm {7E}$ |
| 低压单元 | 0 | $\pm E$ | $\pm {2E}$ | $\pm {3E}$ | 千3$E$ | $\mp {2E}$ | $\mp E$ | 0 | $\pm E$ | $\pm {2E}$ | $\pm {3E}$ |
), ArticleFig(id=1154032501312966870, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1153375936348152641, language=CN, label=表2, caption=
级联方案, figureFileSmall=null, figureFileBig=null, tableContent=
| | | | | | ${U}_{0}$ | | | | | |
| 电压单元 | 0 | $\pm E$ | $\pm {2E}$ | $\pm {3E}$ | $\pm {4E}$ | $\pm {5E}$ | $\pm {6E}$ | $\pm {7E}$ | $\pm {8E}$ | $\pm {9E}$ | $\pm {10E}$ |
| 高压单元 | 0 | 0 | 0 | 0 | $\pm {7E}$ | $\pm {7E}$ | $\pm {7E}$ | $\pm {7E}$ | $\pm {7E}$ | $\pm {7E}$ | $\pm {7E}$ |
| 低压单元 | 0 | $\pm E$ | $\pm {2E}$ | $\pm {3E}$ | 千3$E$ | $\mp {2E}$ | $\mp E$ | 0 | $\pm E$ | $\pm {2E}$ | $\pm {3E}$ |
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