项目二 光伏逆变器 ——1.电路拓扑
DESCRIPTION
项目二 光伏逆变器 ——1.电路拓扑. 《太阳能光伏发电及其逆变控制》. 主要内容. 1.1. 1 .2. 光伏并网逆变器的分类. 1 .3. 1 .4. 隔离型光伏并网逆变器. 非隔离型光伏并网逆变器. 多支路光伏并网逆变器. 微型光伏并网逆变器. 1 .5. 光伏并网逆变器的分类. 1 .1. 光伏并网逆变器的分类. 1 .1. 光伏并网逆变器是将太阳电池所输出的直流电转换成符合电网要求的交流电再输入电网的设备,是并网型光伏系统 能量转换与控制 的核心。 - PowerPoint PPT PresentationTRANSCRIPT
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1.
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1.5
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1.1
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1.1
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1.1
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1.1 1.1.11. 4-2 50Hz.
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1.11.1.11.
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1.11.1.1 1. 50%
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1.11.1.1 2.
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1.11.1.1 2.:DC/DC
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1.11.1.2 5%
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1.11.1.2 1.
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1.11.1.2 1.
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1.11.1.2 2.DC/ACDC/AC
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1.11.1.2 2. :
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1.2 1.2.1 : MPPT3
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2.22.2.1 4-5
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2.22.2.1 1. --- 600V96%
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2.22.2.1 1. ---
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2.22.2.1 2. a 450 -820V97%
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2.22.2.1 2. 600 - 1000V98% b
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2.22.2.1 3. 450820V97% dY;
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2.22.2.1 3.
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2.22.2.2 (HFT)(LFT) EspelageB. K. Bose1977 DC/DC(DC/HFAC/DC/LFAC)(DC/HFAC/LFAC)
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2.22.2.2 2.2.2.1 DC/DC 93% 1.
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2.22.2.2 2.2.2.1 DC/DC DC/AC: DC/AC DC/AC
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2.22.2.2 2.2.2.1 DC/DC:((50%)PWMLC
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2.22.2.2 2.2.2.1 DC/DC:()
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2.22.2.2 2.2.2.1 DC/DC2. SPWPM
SPWPM(Position,)
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2.22.2.2 2.2.2.1 DC/DC2. SPWPM
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2.22.2.2 2.2.2.1 DC/DC2. SPWPM
:SPWMSPWPMSPWPMSPWMSPWMSPWPMSPWPMSPWPMSPWM
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2.22.2.2 2.2.2.1 DC/DC3. DC/DC
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2.22.2.2 2.2.2.1 DC/DC3. DC/DC
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2.22.2.2 2.2.2.1 DC/DC3. DC/DC
SPWPMSPWPM SPWPM()
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2.22.2.2 2.2.2.1 DC/DC3. DC/DC
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2.22.2.2 2.2.2.1 DC/DC3. DC/DC
;;((ZVZCS)(ZVS)
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2.22.2.2 2.2.2.2 1.
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2.22.2.2 2.2.2.2 1.
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2.22.2.2 2.2.2.2 1.
:PWM(50%)
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2.22.2.2 2.2.2.2 1.
SPWPMSPWPM
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2.22.2.2 2.2.2.2 2.
;; ;
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2.22.2.2 2.2.2.2 2.
SPWPMSPWPMSPWM
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2.22.2.2 2.2.2.2 2.
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2.22.2.2 2.2.2.2 2.
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2.22.2.2 2.2.2.2 2.
(ZVS); V1V3 V2V4
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2.32.3.1 DC/AC
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2.32.3.1 2.3.1.1 Buck-Boost
Buck-BoostBuck-BoostBuek-Boost(Discontinuous Current Mode, DCM)
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2.32.3.1 2.3.1.1 Buck-Boost
:
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2.32.3.1 2.3.1.1 Buck-Boost
:V1,,L1,C
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2.32.3.1 2.3.1.1 Buck-Boost
:V2,,CL1
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2.32.3.1 2.3.1.1 Buck-Boost
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2.32.3.1 2.3.1.2 Z
: 1) 2) 3)
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2.32.3.1 2.3.1.2 Z
Z: 1)Z 2)
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2.32.3.1 2.3.1.2 Z
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2.32.3.1 2.3.1.2 Z
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2.32.3.1 2.3.1.2 Z
1)VDT1
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2.32.3.1 2.3.1.2 Z
2)VDT.T0
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2.32.3.1 2.3.1.2 Z
:ZBuck-Boost;
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2.32.3.2
DC/DCDC/ACBoost
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2.32.3.2 2.3.2.1 BoostBoost(MPPT)DC/AC
- 2.32.3.2 2.3.2.1 Boost1. Boost VTsD0
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2.32.3.2 2.3.2.1 Boost2. PWM DC/AC
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2.32.3.2 2.3.2.1 Boost2. PWM PWM SPWMSPWMSPWMSPWMSP-WMSPWM
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2.32.3.2 2.3.2.1 Boost2. PWM SPWM
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2.32.3.2 2.3.2.2 Boost Boost:BoostVD
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2.32.3.2 2.3.2.2 Boost1.Uin< Uout BoostVcBoost
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2.32.3.2 2.3.2.2 Boost1.
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2.32.3.2 2.3.2.2 Boost1. BooatBoostVDbLbVDcBoost
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2.32.3.2 2.3.2.2 Boost2.
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2.32.3.2 2.3.2.2 Boost2. Uin< UoutBoostD;Uin >Uout
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2.32.3.2 2.3.2.2 Boost2. BoostVc,V1V4
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2.32.3.2 2.3.2.3 Boost
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2.32.3.2 2.3.2.3 Boost
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2.32.3.2 2.3.2.3 Boost 1) S1VD1 LiS2, VD2LbBoostPWMPWMS1S2 .
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2.32.3.2 2.3.2.3 Boost 2) BoostBoost;
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2.32.3.2 2.3.2.3 Boost(MW)
EMI
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2.32.3.2 2.3.2.3 Boost
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2.32.3.3
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2.32.3.3 2.3.3.1 1. SPWM(1)(2)A/D(3)(4)
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2.32.3.3 2.3.3.1 2. (1)(2)PI,A/D(3)
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2.32.3.3 2.3.3.1 2.
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2.32.3.3 2.3.3.1 2.
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2.32.3.3 2.3.3.1 2.
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2.32.3.3 2.3.3.2 1.
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2.32.3.3 2.3.3.2 1.
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2.32.3.3 2.3.3.2 1.
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2.32.3.3 2.3.3.2 1. 1ucm.
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2.32.3.3 2.3.3.2 1. 1 PWMPWM 2; 2
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2.32.3.3 2.3.3.2 1. 2 ub0 boost
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2.32.3.3 2.3.3.2 2. 1
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2.32.3.3 2.3.3.2 2. 1UPV
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2.32.3.3 2.3.3.2 2. 2
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2.32.3.3 2.3.3.2 2. 2
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2.32.3.3 2.3.3.2 2. 3H5VI1VI3VI4VI5PWMVI2 VI5PWM
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2.32.3.3 2.3.3.2 2. 3H5UPV98.1%97.7%.
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2.4
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2.42.4.1
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2.42.4.1
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2.42.4.1 ;
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2.42.4.1
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2.42.4.1 : :1nMPPT :EMC
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2.42.4.2 DC-DCMPPT DC-DCBoost
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2.42.4.2 MPPT
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2.42.4.2 Buck-Boost Buck-BoostPWM Buck-BoostBuck-BoostBuck-Boost(DCM)Buck-BoostBuck-BoostBuck-Boost
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2.42.4.2
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2.42.4.3 3;
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2.42.4.3
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2.42.4.3
MPPT
MPPI
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2.42.4.3 ()
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2.42.4.3 1. DC-DCHH
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2.42.4.3 2. 3: (1)(SHEPWM) (2)fit (3) SPWM SPWM(CD) PWM(CPS) PWM
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2.42.4.3 2. Nf:
1):H1800/NN2fN
2):H36000/NNfN
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2.42.4.3 3. HMPPT
:MPPT
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2.42.4.3 3. 2,
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2.52.5.1 2.5.1.1 1970s 1980s ISET Kleinkauf AC module 1990s 1992 ZSW 50W 1994ZSW 100W 19941996Mastervilt, OKE-ServicsAlpha Real 1997AES
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2.52.5.1 2.5.1.1 Enphase EnergyMIEnphase MicroinvertersMIMIM215VDE
Enecsys2011SMI-D480W-60480W(Dumicro-inverter)
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2.52.5.1 2.5.1.1
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2.52.5.1 2.5.1.1
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2.52.5.1 2.5.1.1
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2.52.5.1 2.5.1.2 1. MI1234MI5MI67MPPT8910
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2.52.5.1 2.5.1.2 2. MI1
2
3
4
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2.52.5.1 2.5.1.3 MIMIMIMI(1)MI(2)(3)(4)MPPT(5)(6)(7)
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2.52.5.2 2.5.2.1 MIDC/DCDC/AC
MI
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2.52.5.2 2.5.2.1 MI
1) 2) 3)
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2.52.5.2 2.5.2.2 DC/DC
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2.52.5.2 2.5.2.2 123DC/DCDC/AC 1DC/DC/DC/AC2 3
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2.52.5.2 2.5.2.2 MI
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2.52.5.2 2.5.2.2 ZVCSDC/DC DC/DCZVCS
DC/DC
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2.52.5.2 2.5.2.3 MI(Flyback)MI DC/DCDC/AC. DC/DC DC/AC
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2.52.5.2 2.5.2.3 MI
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2.52.5.2 2.5.2.3 1) 2) 1) 2)
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2.52.5.2 2.5.2.3 MI
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2.52.5.2 2.5.2.3 MI Buck-Boost
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2.52.5.2 2.5.2.3 MIMPPT MPPPT MIMI