Resources & Guides
储能变流器 PCS 工作原理深度解析：双向 AC/DC 与 PQ/VF
PCS 如何把电池直流变成交流？双向变流、PQ/VF 模式、拓扑与控制，结合中腾数能VGRID SP125HCPS 实例。
微电网通信协议：Modbus、CAN、RS485 与 4G 怎么选
EMS 如何与 PCS/BMS/STS 对话？设备侧与云侧通讯协议对比，结合中腾数能VGRID AEMS 接口。
Leona 系列选型：H135K + M200K 分体解耦组合
中腾数能VGRID Leona-H135K 与 M200K 怎么配？135kW 构网核心 + 200kW MPPT 的分体解耦方案。
PCS 模块系列选型：SP125HCPS / SP60-50-40-30HCPS / SP100H
中腾数能VGRID 模块化 PCS 三档怎么选？30kW 到 125kW 的模块矩阵与并机能力。
What Is a PCS (Power Conversion System)? PCS vs PV Inverter vs Hybrid Inverter
Understand what a battery PCS is, its core role, and how it differs from PV inverters, hybrid inverters, DC/DC and STS in a microgrid.
Grid-Tied vs Off-Grid vs Grid-Forming (GFL/GFM): What Actually Differs
The real difference is one question: who provides the voltage and frequency reference? A clear explainer of GFL, off-grid and grid-forming for microgrids.
AC Coupling vs DC Coupling: Where Should PV Connect?
Neither is "better" — they fit different project conditions. A practical comparison of AC vs DC coupling with VGRID MPPT/DC-DC options.
What Makes Up a Microgrid? PCS/BMS/EMS/MPPT/DC-DC/STS Roles
Read a topology by finding the bus, then energy inputs, then control lines. A clear map of microgrid component roles and coordination.
How to Read a PCS / BESS Datasheet: 8 Parameters That Decide Sizing
Don’t memorise every row. Focus on the 8 parameters that decide selection: power, battery voltage window, DC current, grid/off-grid, overload, efficiency, THD/PF, IP/temp/altitude.
STS and Seamless Transfer: How to Achieve Near-Invisible Switching
Built-in STS <10ms, standalone module <20ms. How STS works, transfer timing, sizing advice and when STS is mandatory.
EMS Control Logic: Turning Economy and Reliability into SOC Rules
EMS is strategy and coordination; PCS is execution and conversion. SOC banding, peak-valley arbitrage, anti-backflow and remote O&M with AEMS.
How Storage Coordinates with Diesel Generators: PV-Diesel-Storage Strategy
Grid OK → self-use/arbitrage; grid loss → STS off-grid; low SOC → diesel; recovered → exit. PV-diesel-storage logic with VGRID.
Grid-Forming Storage Deep Dive: How to Build Voltage/Frequency with No Grid
With no stable utility grid, the key question is who builds the voltage/frequency reference. Grid-forming principles, redundant paralleling and VGRID cases.
PCS Selection Guide: Power / Topology / Paralleling / Off-Grid
From system boundary to specs: power class, battery voltage window, grid-forming & paralleling, off-grid backup, with the VGRID PCS matrix.
Hybrid Inverter vs PCS: Which for Small/Medium C&I?
A hybrid inverter integrates PCS+EMS+STS+ATS for fast deployment; a PCS suits modular system integration. A comparison selection guide.
PV MPPT Controller Selection: DC-Coupling PV Access Guide
MPPT feeds PV into the DC bus and tracks max power. Boost/buck-boost, string count and power sizing, with Leona-M200K, SP135HAPV, SP120/60HCPV.
DC/DC Controller: Role and Selection for Cluster Management
DC/DC solves voltage decoupling and enables fine cluster management. Bidirectional buck-boost, heterogeneous batteries and SOC balancing with SP210HCDC, SP120/60HCPV.
All-in-One PV-Storage Inverter Selection: 250kW to 750kW
All-in-ones win on delivery efficiency. Power, PV strings, isolation transformer and paralleling for 250/375/500/750kW, with the VGRID HAG2/HAG2T/PSSTD matrix.
MW-Class Microgrid Switch Cabinet: 1.35/2.2MW High-Current Transfer
At MW scale the core shifts from single PCS to high-current transfer + system protection + distribution coordination. SP1350/2200H54SW for parks/stations.
Off-Grid / Weak-Grid Microgrid Solutions: Islands, Mines, Africa
From Cambodia 1.5MW, Zambia 200kW/430kWh, 2.5MW mine to Maldives island grid-forming — off-grid/weak-grid microgrid lessons.
C&I Energy Storage Design: From Self-Consumption to Peak Arbitrage
C&I PV-storage needs daily self-use and automatic load carry during outages. Configuration, SOC strategy, anti-backflow and VGRID PCS/all-in-one options.
Real Microgrid Case Studies: Cambodia/Zambia/Mine/Maldives
The value is not copying configs but identifying system problems (paralleling, SOC, half-wave loads, diesel linkage, grid-forming) and matching capability. Four projects.
European-standard PCS to US-standard voltage: N conductor return path design pitfalls under single-phase loads
Drawing on a Mexican solar-plus-storage project case, this analyzes the missing N conductor return path caused by single-phase loads when a European-standard 400 V PCS is stepped to US-standard voltage via a transformer, along with corrective approaches.
Mobile Energy Storage Vehicle Solution
An all-purpose mobile energy fortress that flexibly supports backup power, emergency response and temporary loads, plug and play.
Solar-Storage-Diesel AC/DC Coupled Microgrid Solution
An industrial and commercial AC/DC hybrid microgrid combining PV, diesel generators, energy storage and the grid, balancing economics and resilience.
Hydropower and Diesel Generator VSG Grid-Forming Solution
VSG grid-forming solar-plus-storage solution, delivering grid-formable, reliable green power supply for remote areas.
Middle East Villa Energy Storage Solution
Delivering stable, reliable power protection for luxury residential and commercial villa scenarios, addressing grid fluctuations and outages.
Energy Storage Solutions for Small and Medium-Sized Factories
Build factory-level PV-storage microgrids and demand management with core solutions such as SP250HAG2T / SP500HCG2.
PV Local Consumption Storage Solution
Smooths transformer impact and curtails PV clipping during peak generation, improving self-consumption rate and revenue.
Peak-Valley Arbitrage Energy Storage Solution
Empowered by core PCS for commercial and industrial peak-valley arbitrage: charge during valley hours, discharge during peak hours, significantly cutting electricity costs.
Distribution Area Energy Storage Voltage Governance Solution
Eliminate high/low voltage at rural line ends and three-phase imbalance, improve voltage compliance rate, and accelerate local PV consumption.
Hotel PV-Diesel-Storage Microgrid Solution
Stable, economical and green power supply for island and remote hotels, enhancing the guest experience.
Commercial & Industrial PV + Storage (Off-Grid) Solution
For commercial and industrial sites where grid connection is difficult or off-grid backup power is required, an integrated PV and storage system safeguards critical loads.
Oilfield Production Microgrid Solution
A solar-diesel-storage microgrid for gobi oilfields, reducing diesel consumption and carbon emissions at remote well sites while improving power supply resilience.
Microgrid Solution for Remote Farms
Empower remote farms with solar-plus-storage systems for a reliable, green supply of power for irrigation, processing and daily life.
Africa Mining Microgrid Solution
An off-grid microgrid combining wind, PV, diesel generation and energy storage for continuous mine production and reduced diesel dependence.
Microgrid Solution for African Villages
The PV-diesel-storage hybrid microgrid provides stable, economical and green power for villages without electricity, supporting basic education and healthcare services.
Island Microgrid Solution
Build a 24-hour stable green power supply with PV, storage and diesel, replacing high-cost diesel gensets, covering remote islands in Southeast Asia and Africa.
LFP vs NMC Energy Storage Batteries: Which Should a Microgrid Choose
An analysis of the differences between lithium iron phosphate (LFP) and nickel manganese cobalt (NMC) in safety, cycle life, energy density and temperature adaptability, with a selection comparison for microgrids.
Energy Storage Converter (PCS) vs Grid-Tied Inverter: How to Select
Compare the Energy Storage Converter (PCS) and the grid-tied inverter in terms of on-grid/off-grid capability, switching time, energy storage coupling method and system role, and provide selection criteria for microgrids.