Converter and Boost Converter

eStation-MV-6880

Liquid-cooled Intelligent Engine, Peak Expansion Performance

Featuring a three-level topology string PCS module with up to 99% conversion efficiency, this energy storage system supports 100% DOD and enables seamless expansion with a modular design compatible with various cells. It delivers robust environmental adaptability: efficient liquid cooling ensures no derating at 40°C, suits 2000m high-altitude use, and comes with IP66 power modules, IP54 overall enclosure, corrosion-resistant cabinet and 20-year lifespan. Supporting flexible expansion up to 6.88MVA, optimized SOC management and AC/DC short-circuit protection, it is ideal for wind/solar integration, off-grid backup, grid regulation and C&I peak shaving.

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Product Advantages

High Efficiency & User-friendly

Three-level topology with a maximum conversion efficiency of > 99% is adopted. Paired with cluster-level management, it supports 100% DOD and mixed use of new and old batteries. Full liquid cooling design significantly improves heat dissipation efficiency, balancing conversion performance and O&M convenience.

  • Three-level topology

  • conversion efficiency > 99%

  • Cluster-level management supporting 100% DOD

  • Full liquid cooling design

High Efficiency & User-friendly

01

Balancing System Expansion & Operational Reliability

It supports modular expansion from 430kVA up to 6.88MVA to meet varying capacity demands. Optimized state of charge (SOC) management balances battery clusters, while both AC and DC sides are equipped with short-circuit breaking capability, achieving dual guarantees of flexible expansion and safe operation.

  • Modular Expansion from 430kVA up to 6.88MVA

  • Optimized SOC Management

  • Balanced Battery Clusters

  • Short-circuit Breaking on Both AC/DC Sides

Balancing System Expansion & Operational Reliability

02

Adaptable to Diverse Harsh Working Conditions

High-efficiency liquid cooling enables derating-free operation at 40°C ambient temperature, with a maximum operating altitude of 2,000 meters. The entire unit has IP54 rating. The welded steel enclosure is corrosion-resistant, and components have a design life of 20 years, suitable for harsh environments.

  • Operation at 40°C Ambient Temperature

  • Maximum Operating Altitude of 2,000 Meters

  • IP54 Rating

  • 20-year Design Life

Adaptable to Diverse Harsh Working Conditions

03

Meeting Diversified Energy Needs

It can smooth power fluctuations of photovoltaic-storage power stations and store surplus electricity, has black start capability to support off-grid backup operation, and provides customers with voltage/frequency regulation, peak shaving/valley filling and emergency power supply, covering multiple scenarios.

  • Smooth Power Fluctuations

  • Black Start

  • Off-grid/Backup Operation

  • Voltage Regulation & Peak Shaving/Valley Filling

Meeting Diversified Energy Needs

04

Product Parameters

PCS DC PARAMETERS 
Max.DC Voltage 1500V Battery Voltage Range 1000-1500V
Number of DC Input 16 DC Voltage Ripple <2%
Max.DC Current 430A*16 DC Current Ripple <3%
PCS AC PARAMETERS
AC Output Power 430kVA*16 Harmonic(THDi) <3%(100% load)
PCS AC Output Current 360A*16 Power Factor 0.8lagging~0.8leading
PCS AC Voltage Range 621~759V(Adjustable) Connection Phases 3P3W+PE
PCS AC Voltage Range 50/60Hz    
ENVIRONMENT
Max.altitude 2000m Relative Humidity 0~95%(no condensing)
Operating Temperature -30°C~60°C    
TRANSFORMER
Rated Capacity 7100kVA Cooling Method ONAN
Isolation Mode Oil-immersed Transformer Transformer Turns Ratio 10-350V/0.690kV
Transformer Vector Dy11y11 Transformer Efficiency Tier1/Tier2/≥99%@Pn
Transformer Oil Mineral oil/R3 Anti-corrosion Grade C5/C4/C3
Protection Level IP54    
SWITCHGEAR
Switchgear Type CCV/DCV/others Rated Operating Current 630A
Insulating Medium SF6 Switchgear Short Circuit Rating 20kA/3s or 25kA/1s
MECHANICAL PARAMETER
Dimensions (WHD) 12192mm*2438mm*2896mm Total Weight <39000kg

Application Scenarios

Perfectly adapted to multiple scenarios such as ultra-large-scale centralized energy storage stations, AC/DC hybrid microgrids, remote area off-grid power supply, grid support and black start, helping users transition to clean energy.

Photovoltaic Power Plants

Wind Farms

Energy Storage Stations

Substations

Off-grid Scenarios

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