PATENT CLAIM ANALYSIS

Application Number: 16244429
Application Type: Utility
Filing Date: 2019-01
Publication Date: 2019-05
Patent Classification: ["363", "095000"]

Abstract:
The present disclosure provides a control method for improving conversion efficiency of a multi-channel MPPT input inverter, which implements high efficient operation of the inverter.

Claim (Index 1):
A control method for improving conversion efficiency of a multi-channel Maximum Power Point Tracking (MPPT) inverter, comprising:\n collecting an input voltage v PVm  of a photovoltaic panel in each channel, an input current i PVvm  of the photovoltaic panel in each channel and a direct-current bus voltage v bus , obtaining an input power P PVm , of the photovoltaic panel in each channel, and using input voltages of at least two channels to obtain a voltage difference \u0394v PV , wherein m=1, 2, . . . , M, and M is a number of input channels of the photovoltaic inverter MPPT; comparing the voltage difference \u0394v PV  with a preset on-off control judging threshold to obtain a start state and a stop state of a boost circuit in each channel, a voltage reference signal v PVm * in each channel and a direct-current bus voltage reference signal v bus *, wherein the boost start state and the stop state is determined by: when |\u0394v PV |\u2265V THb , turning off a boost circuit in a channel corresponding to a maximum input voltage v PV _ max , activating the boost circuits in remaining channels, wherein V THb  is a boost on-off control judging threshold 1, and maximizing the input power P PVm  by an MPPT module in each channel to obtain the voltage reference signal v PVm * in each channel, the direct-current bus voltage reference signal v bus * using a maximum voltage reference signal v PV _ max ;* when V THb \u2265|\u0394v PV |\u2265V THs , activating all boost circuits, wherein V THs  is a boost on-off control judging threshold 2, wherein V THs <V THb ; and maximizing the input power P PVm  by the MPPT module in each channel to obtain the voltage reference signal v PVm * in each channel, the direct-current bus voltage reference signal v bus * using the maximum voltage reference signal v PV _ max *; and when V THs \u2265|\u0394v PV |\u22650, when the act is performed for a first time, obtaining a voltage V VLMPP  at a virtual local maximum power point (VLMPP), turning off all the boost circuits, maximizing a total input power P PV _ sum  of the inverter by an MPPT module based on the direct-current bus voltage v bus  to obtain the direct-current bus voltage reference signal v bus *, monitoring a voltage difference between the direct-current bus voltage v b and the voltage at the virtual local maximum power point V VLMPP , and activating all the boost circuits when the voltage difference between the direct-current bus voltage v bus  and the voltage at the virtual local maximum power point V VLMPP  exceeds the boost on-off control judging threshold V THb .

Metadata:
- Claim Count in Document: 3.0
- Percentile: 99.0
- Lexical Diversity: 1.125
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13601364', '13619540', '10419343', '13619468', '14173439']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7813272267206
- 35 USC 102 Novelty (BERT): 0.4834292080449919
- Combined Prediction Score: 0.7515374248530392
- Mean Citation Score: 208.87383
- Max Citation Score: 220.24219
- Similarity Product: 177.84872006499646

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test