WO2026042115 - CSI CONVERTER WITH HIGH STEP-UP CAPABILITY
National phase entry is expected:
Publication Number
WO/2026/042115
Publication Date
26.02.2026
International Application No.
PCT/IT2025/050185
International Filing Date
13.08.2025
Title **
[English]
CSI CONVERTER WITH HIGH STEP-UP CAPABILITY
[French]
CONVERTISSEUR CSI À HAUTE CAPACITÉ D'ÉLÉVATION
Applicants **
CLOUDWISE S.R.L.
Inventors
PELLINI, Fabio
DI STEFANO, Roberto
Priority Data
102024000019174
22.08.2024
IT
Application details
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International Searching Authority |
EPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 1878 | |
| EPO | Filing, Examination, Granting | 8133 | |
| Japan | Filing, Examination, Granting | 2023 | |
| South Korea | Filing, Examination, Granting | 1736 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
18,510
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Abstract[English]
A CSI converter for transferring energy from a direct current source (PV) to a three-phase grid (U); said CSI converter comprising: a three-phase bridge (B) driven by means of an SVM modulator (M); said three- phase bridge (B) being connected in parallel with a capacitor bank (Cu),(Cv),(Cw) and with said three- phase loads (U); two switched-inductortype voltage-current converters (SIA), (SIB) respectively equipped with two pairs of inductors (L1 ),(L2) and (L3),(L4); said pairs of inductors being employed to accumulate the energy supplied by said source (PV); said converters (SIA), (SIB) being connected in parallel and being driven by means of a control circuit (M2) to alternately transfer current to said three-phase bridge (B); characterized in that said control circuit (M2) and said SVM modulator (M) are configured to: drive said bridge (B) according to a sequence of active states (T), in which said three-phase bridge (B) transfers current to said three-phase loads (U), and of passive recirculation states (FW); drive said first converter (SIA) and said second converter (SIB) according to an alternating and synchronized sequence with the states of said three-phase bridge (B), such that, during an active state (T) of said three-phase bridge (B), one of said first and second converters (SIA), (SIB) is commanded to transfer current to said three-phase bridge (B) while the other converter of said first and second converters (SIA), (SIB) is charged by said power source (PV).[French]
L'invention concerne un convertisseur CSI permettant de transférer de l'énergie d'une source de courant continu (PV) à un réseau triphasé (U) ; ledit convertisseur CSI comprenant : un pont triphasé (B) entraîné au moyen d'un modulateur SVM (M) ; ledit pont triphasé (B) étant connecté en parallèle avec une batterie de condensateurs (Cu), (Cv), (Cw) et avec lesdites charges triphasées (U) ; deux convertisseurs tension-courant (SIA), (SIB) du type à inducteurs commutés respectivement équipés de deux paires d'inducteurs (L1), (L2) et (L3), (L4) ; lesdites paires d'inducteurs étant utilisées pour accumuler l'énergie fournie par ladite source (PV) ; lesdits convertisseurs (SIA), (SIB) étant connectés en parallèle et étant entraînés au moyen d'un circuit de commande (M2) pour transférer alternativement du courant audit pont triphasé (B) ; caractérisé en ce que ledit circuit de commande (M2) et ledit modulateur SVM (M) sont configurés pour : entraîner ledit pont (B) selon une séquence d'états actifs (T), dans laquelle ledit pont triphasé (B) transfère du courant auxdites charges triphasées (U), et d'états de recirculation passifs (FW) ; entraîner ledit premier convertisseur (SIA) et ledit second convertisseur (SIB) selon une séquence alternée et synchronisée avec les états dudit pont triphasé (B), de sorte que, pendant un état actif (T) dudit pont triphasé (B), l'un desdits premier et second convertisseurs (SIA), (SIB) soit commandé pour transférer du courant audit pont triphasé (B) tandis que l'autre convertisseur desdits premier et second convertisseurs (SIA), (SIB) est chargé par ladite source d'alimentation (PV).