PV-ESS ALL-in-one
Product Overview :
The photovoltaic energy storage inverter is an integrated cabinet-type power equipment integrating PV MPPT control unit and energy storage converter, with optional EMS energy management system. It integrates photovoltaic power generation, energy storage and charging functions. Adopting bidirectional DC-AC conversion and four-quadrant SVPWM/SPWM technology, it supports bidirectional energy flow and automatically adapts to 50/60Hz power grid. Its power factor reaches above 0.99 with low grid-connected harmonic distortion and high power quality.
It is compatible with lead-acid batteries, lithium batteries, flow batteries, supercapacitors and other energy storage media. The special version for flow batteries supports 0V pre-charge with DCDC pre-charge and resistance pre-charge modes. Equipped with color touch screen HMI, it stores historical fault records and supports high-precision energy metering. Multiple communication interfaces including RS485, TCP/IP and CAN are available, and WIFI/GPRS modules are optional for 24-hour remote monitoring. Models with optional EMS support customized energy scheduling strategies for peak shaving, anti-reflux and multi-energy priority configuration, improving energy utilization, reducing power cost and enhancing grid stability, serving as a green and low-carbon comprehensive energy solution.
Technical Features:
1.Four-quadrant Operation & Bidirectional Energy Flow:
Bidirectional energy transmission, auto-adaptive 50/60Hz grid. SVPWM/SPWM modulation, max power factor over 0.99, low grid harmonic pollution.
2.Adjustable Power Factor:
Output power factor adjustable (-0.8 leading ~1.0 ~ +0.8 lagging), supports custom reactive power compensation to meet diverse grid requirements.
3.Interleaved Control Technology:
Low ripple current, effectively extending the service life of energy storage batteries.
4.Optional EMS Energy Management:
Optional built-in EMS system for customized operation logic and intelligent scheduling among PV, battery and grid.
5.Intuitive HMI:
Color touch screen with Chinese/English switching. Real-time display of operating data and faults; 200,000 historical fault records storage, optional 0.2-class high-precision energy meter.
6.Wide Compatibility for Energy Storage:
Supports lithium, lead-acid, flow batteries and supercapacitors. Flow battery version provides 0V pre-charge, DCDC or resistance pre-charge mode.
7.Diversified Communication & Remote O&M:
RS485, TCP/IP, CAN with Modbus protocol. Optional WIFI/GPRS for 24h remote monitoring via PC and mobile APP.
8.Comprehensive Protection:
Complete protection functions including over/under voltage, overcurrent and over-temperature protection for safe operation.
Typical applications:
PV-storage peak shaving & valley filling, multi-energy complementary microgrid power supply, factory transformer capacity expansion with anti-reflux, industrial & commercial PV self-consumption storage system, distributed grid-connected PV energy storage, off-grid / weak-grid power supply, new energy multi-energy coordination projects.
Electrical Schematic Diagram - Two-level Boost or Buck Topology
Electrical Schematic Diagram - Two-level Boost or Buck Topology
Electrical Schematic Diagram - Three-level Buck-Boost Topology
Electrical Schematic Diagram - Three-level Buck-Boost Topology
Typical Application Topology Diagram--- DCDC*n + PCS*1
Technical Parameters and Selection
