针对多种新能源联合供电场合,提出一种新颖的小容量光伏/燃料电池供电逆变器,并对其电路拓扑、能量管理控制策略、高频开关过程、双输入源占空比、输出电压复合控制器设计、双输入源共模抑制等关键技术进行深入研究。该电路拓扑是由双输入源选择开关、工作半个输出周期的2个双向Flyback直流斩波器、交流滤波电容级联构成。该文所提主从功率分配能量管理SPWM复合控制策略通过控制输出电压瞬时值和多输入源输出功率比来实现对输入源的能量管理和2种工作模式无缝切换。设计并研制的1 kVA光伏/燃料电池双输入逆变器样机的实验结果表明,该逆变器具有单级功率变换、变换效率高、占空比调节范围宽、输出波形质量高、不同供电模式间无缝切换等优良性能。
Abstract
A novel small-capacity photovoltaic/fuel cell power supply inverter is proposed for multiple new energy power supply occasions. Key technologies such as its topology, energy management control strategy, high-frequency switching process, dual input source duty cycle, output voltage compound controller design and dual-input common-mode suppression have been studied. The topology is composed of two input source selector switches, two bidirectional Flyback DC choppers working for half an output cycle, and an AC filter capacitor. The proposed master-slave power distribution energy management SPWM composite control strategy is to realize the energy management of the input sources and the seamless switching of the two working modes by controlling the instantaneous value of the output voltage and the output power ratio of the input sources. A 1 kVA photovoltaic/fuel cell dual-input inverter prototype is designed and developed. The experimental results show that the inverter has the advantages of single-stage power conversion, high conversion efficiency, wide duty cycle adjustment range, high output waveform quality and seamless switching between different power supply modes.
关键词
双输入逆变器 /
Flyback斩波器 /
燃料电池 /
能量管理控制 /
双输入源共模抑制
Key words
dual-input inverter /
Flyback chopper /
fuel cell /
energy management control strategy /
common-mode voltage suppression of the dual-input source
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参考文献
[1] 张勇, 彭勇刚, 韦巍. 计及制氢效率的光-储-氢系统协调控制策略研究[J]. 太阳能学报, 2021, 42(11): 67-75.
ZHANG Y, PENG Y G, WEI W.Coordianation control for PV, storage and hydrogen system considering hydrogen energy conversion efficiency[J]. Acta energiae solaris sinica, 2021, 42(11): 67-75.
[2] 王传辉, 申彦波, 田启明, 等. 中国西北地区环日辐射及其对太阳能热发电影响的数值模拟研究[J]. 太阳能学报, 2021, 42(11): 186-192.
WANG C H, SHEN Y B, TIAN Q M, et al.Numerical simulation of circumsolar normal irradiance and its effect on solar thermal power generation in northwestern China[J]. Acta energiae solaris sinica, 2021, 42(11): 186-192.
[3] 李强, 邓贵波, 张家瑞. 太阳能热发电参与调节的多源联合发电系统两阶段调度策略[J]. 太阳能学报, 2021, 42(12): 86-92.
LI Q, DENG G B, ZHANG J R.Two stage scheduling strategy of multi-source combined power generation system with concentrated solar participating adjustment[J]. Acta energiae solaris sinica, 2021, 42(12): 86-92.
[4] 邱琰辉, 陈道炼, 江加辉. 多绕组同时供电直流变换器型多输入逆变器[J]. 电工技术学报, 2017, 32(6): 181-190.
QIU Y H, CHEN D L, JIANG J H.Multi-winding simultaneously-supplying DC-DC converter mode multi-input inverter[J]. Transactions of China Electrotechnical Society, 2017, 32(6): 181-190.
[5] 崔杨, 纪银锁, 仲悟之, 等. 基于电-热联合储能的弃风消纳调度方法[J]. 太阳能学报, 2021, 42(12): 192-199.
CUI Y, JI Y S, ZHONG W Z, et al.Dispatching method of wind power curtailment based on electric-thermal combined energy storage[J]. Acta energiae solaris sinica, 2021, 42(12): 192-199.
[6] MENON D V, SINGH B, BHUVANESWARI G.Sensorless SynRG based variable speed wind generator and single-stage solar PV array integrated grid system with maximum power extraction capability[J]. IEEE transactions on industrial electronics, 2019, 67(9): 7529-7539.
[7] PRADHAN S, SINGH B, PANIGRAHI B K, et al.A composite sliding mode controller for wind power extraction in remotely located solar PV-wind hybrid system[J]. IEEE transactions on industrial electronics, 2019, 66(7): 5321-5331.
[8] KALLA U K, SINGH B, MURTHY S S, et al.Adaptive sliding mode control of standalone single-phase microgrid using hydro, wind, and solar PV array-based generation[J]. IEEE transactions on smart grid, 2018, 9(6): 6806-6814.
[9] KOTRA S, MISHRA M K.A supervisory power management system for a hybrid microgrid with HESS[J]. IEEE transactions on industrial electronics, 2017, 64(5): 3640-3649.
[10] MARTIN A D, CANO J M, SILVA J F A, et al. Backstepping control of smart grid-connected distributed photovoltaic power supplies for telecom equipment[J]. IEEE transactions on energy conversion, 2015, 30(4): 1-9.
[11] ATHIKKAL S, KUMAR G G, SUNDARAMOORTHY K, et al.A non-isolated bridge-type DC-DC converter for hybrid energy source integration[J]. IEEE transactions on industry applications, 2019, 55(4): 4033-4043.
[12] ZENG J W, QIAO W, QU L Y.An isolated three-port bidirectional DC-DC converter for photovoltaic systems with energy storage[C]//Industry Applications Society Meeting, FL, USA, 2013.
[13] YU S Y, KWASINSKI A.Analysis of soft-switching isolated time-sharing multiple-input converters for DC distribution systems[J]. IEEE transactions on power electronics, 2013, 28(4): 1783-1794.
[14] REDDI N K, RAMTEKE M R, SURYAWANSHI H M, et al.An isolated multi-input ZCS DC-DC front-end-converter based multilevel inverter for the integration of renewable energy sources[J]. IEEE transactions on industry applications, 2018, 54(1): 494-504.
[15] JAFARI M, MALEKJAMSHIDI Z, LEI G, et al.Design and implementation of an amorphous high-frequency transformer coupling multiple converters in a smart microgrid[J]. IEEE transactions on industrial electronics, 2017, 64(2): 1028-1037.
[16] MANGU B, AKSHATHA S, DOOLLA S, et al.Grid-connected PV-wind-battery-based multi-input transformer-coupled bidirectional DC-DC converter for household applications[J]. IEEE journal of emerging & selected topics in power electronics, 2016, 4(3): 1086-1095.
[17] DEBNATH D, CHATTERJEE K.Two-stage solar photovoltaic-based stand-alone scheme having battery as energy storage element for rural deployment[J]. IEEE transactions on industrial electronics, 2015, 62(7): 4148-4157.
[18] LAM J, JAIN P K.An asymmetrical PWM(APWM) controlled multi-input isolated resonant converter with zero voltage switching(ZVS) for hybrid renewable energy systems[C]//Telecommunications Energy Conference, Vancouver, BC, Canada, 2014.
基金
国家自然科学基金（51537001）; 山东省泰山学者攀登计划
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