Product Description:
The GREEF ENERGY multi-functional converter combines several key
functions into a single device. It is capable of performing
AC-to-DC rectification specifically designed for permanent magnet
(PM) generators, as well as facilitating battery charging, DC-to-AC
inversion, and managing energy through an integrated system.
Equipped with a configurable dual LCD touchscreen, this converter
employs advanced converter technology that ensures stable control
of voltage and frequency for permanent magnet synchronous
generators (PMSGs). This stability guarantees a continuous and
reliable power supply to various loads.
Additionally, the converter can be configured to operate in a
grid-tied mode. In this mode, it supports seamless integration with
the power grid, allowing both operational use and grid charging
functions to be performed efficiently.
Technical Parameters:
Model | Mars-100kt |
Rated power(kW) | 100 |
Rated voltage(Vac) | ≥ 320 |
Optimal generator rated voltage(Vac) | 450 |
AC votlage working range(Vac) | 240 ~ 550 |
Maximum AC current(A) | 180 |
Battery type | Lithium-ion |
Battery voltage range(Vdc) | 350 - 450 |
Rated battery voltage(Vdc) | 400 |
Max charging&discharging Current(A) | 250 |
Rated charging/discharging power(kw) | 100 |
Rated charge and discharge current(A) | 144 |
Rated grid voltage(V) | 400 |
Permissible grid voltage range(v) | 300 - 460 |
Rated grid frequency(Hz) | 50 / 60 |
Maximum efficiency(%) | 95 |
Generator AC Input Side Parameters
The generator has a rated power of 100 kW and a rated voltage of at
least 320 Vac. The optimal generator rated voltage is specified as
450 Vac. The AC voltage working range spans from 240 Vac to 550
Vac, with a maximum allowable AC current of 180 A.
Battery Input Data
The battery used is a lithium-ion type with a voltage range between
350 Vdc and 450 Vdc. Its rated battery voltage is 400 Vdc. The
maximum charging and discharging current supported is 250 A.
Output Side Parameters (Grid-Connected)
The rated charging and discharging power on the output side is 100
kW, with a maximum achievable power of 120 kW. The rated charge and
discharge current is set at 144 A, while the maximum
charge-discharge current can reach 173 A. The system is designed to
operate with a rated grid voltage of 400 V, within a permissible
range of 300 V to 460 V. It supports grid frequencies of 50 Hz and
60 Hz.
The current total harmonic distortion rate at rated power is less
than 3%. The power factor exceeds 0.99 and ranges from -1 to 1. The
system has an overload capacity of 1.2 times the nominal power for
continuous operation lasting one minute.
AC Side Parameters (Off-Grid)
In off-grid mode, the rated input voltage is 400 V with a voltage
deviation tolerance of ±2%. The total harmonic distortion rate for
linear loads remains below 3%.
Protection Features
- Over voltage and speed protection: Optional
- AC short-circuit protection: Supported
- AC output overcurrent protection: Supported
- Surge protection: Level 2
Basic Parameters
The unit achieves a maximum efficiency of 95% and employs a
topology consisting of an AC-DC rectifier, DC-DC buck-boost
converter, and a DC-AC inverter. It integrates an Energy Management
System (EMS) for optimized operation.
The ambient operating temperature ranges from -40°C to 60°C, and
the unit has a protection level rated at IP54.
Display and Cooling
The display provides a variety of data including generator speed
(rpm), input voltage (Vdc), input current (Vac), output power (kW),
grid voltage (Vac), grid current (A), and energy generated for
various periods (today, this month, last month, this year, and last
year). It also supports power curve settings.
Cooling is managed by an intelligent air cooling system.
Additional Specifications
The maximum operating altitude is 4,000 meters with derating
applicable above 3,000 meters. Standby power consumption is less
than 50 W.
The display is an LCD SMART Touch Screen, and communication modes
include Ethernet, RS485, and WiFi.
Physical Dimensions
The unit's dimensions excluding the dump load are as follows:
height 1500 mm, width 1500 mm, and depth 1300 mm. The weight of the
unit without the dump load is up to 600 kg.
Applications:
The GREEF ENERGY multi-functional converter presents a versatile
and highly adaptable solution designed to meet the demands of
various power management scenarios. It excels in applications
requiring dependable and intelligent control over energy systems,
making it an essential component for modern energy infrastructures.
One of its primary uses is within renewable energy systems. The
converter is especially effective at integrating Permanent Magnet
Synchronous Generators (PMSGs), commonly found in wind and hydro
turbine setups. This integration supports off-grid or hybrid power
frameworks by delivering consistent and stable AC power to
connected loads.
For off-grid and backup power applications, the converter functions
as the central hub for power conversion and system management. This
role is crucial for standalone installations such as remote
locations, cabins, or telecommunications sites, where it manages
inputs from generators, handles battery charging processes, and
controls inverter outputs to ensure uninterrupted power supply.
Additionally, the system can be configured to operate in
grid-interactive mode. This capability enables battery charging
from the grid and, where regulations allow, the feeding of surplus
electricity back into the grid. These features broaden the
converter’s flexibility in managing power flows within grid-tied
systems.
The device is also well-suited for industrial and commercial
environments that demand reliable power under unbalanced load
conditions. It supports remote monitoring through WIFI or LAN
connections and can be integrated seamlessly with building
management systems using Modbus protocols, enhancing operational
visibility and control.
Beyond these core functions, the GREEF ENERGY converter offers
specialized control options tailored to specific applications.
These include water gate motor control for micro-hydropower plants
and the incorporation of a Static Transfer Switch (STS) to
facilitate smooth transitions between grid-connected and off-grid
modes.
Overall, this product acts as a comprehensive platform that
consolidates power generation, storage, consumption management, and
grid integration capabilities. Its modular design and configurable
options allow for flexible deployment across a wide range of
scenarios, from residential off-grid systems and commercial backup
power solutions to small-scale renewable energy power plants.
Customization:
Introducing the Greef AC PCS On Grid Controller, a high-quality
product manufactured in China with CE certification. This advanced
on grid controller features an LCD SMART Touch Screen display,
providing an intuitive and user-friendly interface for easy
operation and monitoring.
The Greef AC PCS is designed with intelligent air cooling to ensure
optimal performance and longevity. It supports a rated battery
voltage of 400Vdc and operates efficiently within a battery voltage
range of 350 - 450Vdc.
This on grid controller offers comprehensive display contents
including Generator Speed (rpm), Input Voltage (Vdc), Input Current
(Vac), Output Power (kW), Grid Voltage (Vac), Grid Current (A), as
well as detailed power generation statistics such as Power Generate
Today (kWh), This Month, Last Month, This Year, and Last Year.
Additionally, it features a power curve controller function for
precise energy management and optimization.
Packaged securely in foam and plywooden cases, each unit is
available with a minimum order quantity of 1 set. Pricing is
negotiable to suit your project requirements. Delivery time is
approximately 25 working days, with flexible payment terms
including T/T, Western Union, MoneyGram, and L/C.
Choose the Greef AC PCS On Grid Controller for reliable
performance, advanced touch screen display capabilities, and
superior power curve controller functionality to enhance your
energy system.
