Product Description:
GREEF ENERGY's multi-functional converter combines several essential functions into one compact unit. It supports AC-to-DC rectification specifically designed for permanent magnet generators (PM generators), enabling efficient battery charging and DC-to-AC inversion. Additionally, it incorporates a comprehensive energy management system to optimize overall performance.
Equipped with a configurable dual LCD touchscreen, this converter offers an intuitive user interface. It employs cutting-edge converter technology to maintain stable voltage and frequency control for permanent magnet synchronous generators (PMSGs). This ensures a reliable and continuous power supply to connected loads without interruptions.
Moreover, the converter can be easily adjusted to operate in grid-tied mode. In this mode, it facilitates connection to the electrical grid and supports grid charging capabilities. This flexibility makes the GREEF ENERGY converter suitable for a wide range of applications, from standalone setups to grid-integrated systems.
Technical Parameters:
Generator AC Input Side Parameters
The generator has a rated power of 100 kW, with a rated voltage of at least 320 Vac. The optimal rated voltage for the generator is 450 Vac, and it operates efficiently within an AC voltage range of 240 to 550 Vac. The maximum AC current it can handle is 180 A.
Battery Input Data
The system uses a lithium-ion battery with a voltage range between 350 and 450 Vdc. Its rated battery voltage is 400 Vdc. The maximum charging and discharging current supported by the battery is 250 A.
Output Side Parameters (Grid-connected)
For grid-connected operation, the rated charging and discharging power is 100 kW, with a maximum power capacity of 120 kW. The rated charge and discharge current is 144 A, while the maximum current is 173 A. The rated grid voltage is 400 V, and the allowable grid voltage ranges from 300 to 460 V. The system supports grid frequencies of 50 or 60 Hz.
Current total harmonic distortion at rated power is maintained below 3%. The power factor exceeds 0.99, with a range from -1 to 1. Additionally, the system can sustain an overload capacity of 1.2 times the nominal power continuously for one minute.
AC Side Parameters (Off-grid)
When operating off-grid, the rated input voltage is 400 V, with a voltage deviation tolerance of ±2%. The total harmonic distortion rate under linear load conditions is below 3%.
Protection Features
The system offers optional protection against overvoltage and speed anomalies. It includes support for AC short-circuit protection and AC output overcurrent protection. Surge protection is provided at Level 2.
Basic Parameters
The maximum efficiency of the system reaches 95%. Its topology consists of an AC-DC rectifier, a DC-DC buck-boost converter, and a DC-AC inverter. The Energy Management System (EMS) can operate in ambient temperatures ranging from -40 to 60°C. The protection level is rated at IP54.
Display and Cooling
The display system shows multiple parameters including generator speed (rpm), input voltage (Vdc), input current (Vac), output power (kW), grid voltage (Vac), grid current (A), as well as power generated today, this month, last month, this year, and last year. Users can also configure power curve settings. Cooling is performed using an intelligent air cooling method.
Additional Specifications
The maximum operating altitude is 4,000 meters, with derating applied above 3,000 meters. Standby power consumption is less than 50 W. The system features a smart LCD touch screen for display.
Communication modes supported include Ethernet, RS485, and WiFi.
Physical Dimensions and Weight
The generator's dimensions, excluding the dump load, are 1500 mm in height, 1500 mm in width, and 1300 mm in depth. Its weight does not exceed 600 kg.
Applications:
The GREEF ENERGY multi-functional converter is an exceptionally versatile system designed to cater to a broad spectrum of applications, especially where dependable and intelligent power management is essential. It serves as a critical component in various power setups, providing adaptable solutions to meet diverse energy needs.
In the realm of renewable energy systems, this converter excels at integrating Permanent Magnet Synchronous Generators (PMSGs) sourced from wind or hydro turbines. It effectively supports off-grid or hybrid power configurations by delivering stable alternating current (AC) power to connected loads, ensuring consistent operation in fluctuating environments.
For off-grid and backup power scenarios, the GREEF ENERGY converter acts as the central hub for power conversion and management. It is well suited for standalone installations such as remote sites, cabins, or telecommunication stations, efficiently managing inputs from generators, regulating battery charging processes, and controlling inverter outputs to maintain reliable power supply.
When deployed in grid-interactive systems, the converter can be configured to synchronize with the utility grid. This enables functionalities such as charging batteries directly from the grid or, under the right regulatory conditions and user settings, feeding excess generated power back into the grid, thereby enhancing energy utilization and sustainability.
In industrial and commercial environments, the device provides stable power delivery even under unbalanced load conditions. It supports advanced features like remote monitoring via WIFI or LAN, and can integrate seamlessly with building management systems through Modbus protocols, making it ideal for complex power management requirements.
Beyond these core functions, the GREEF ENERGY system offers optional specialized controls tailored to unique applications. These include managing water gate motors for micro-hydropower plants or incorporating a Static Transfer Switch (STS) to enable smooth transitions between grid-connected and off-grid power modes.
Overall, this product acts as a fundamental platform unifying power generation, storage, consumption management, and grid interconnection capabilities. Its modular and configurable design allows easy adaptation for a variety of scenarios, ranging from residential off-grid energy storage solutions and commercial backup power to small-scale renewable energy power plants.
Customization:
Greef offers customized On Grid Controller solutions with the model number AC PCS, designed and manufactured in China. Our grid tied controller is CE certified, ensuring high quality and safety standards for your energy management needs.
With a rated power of 100 kW and a rated battery voltage of 400 Vdc, the AC PCS model supports an optimal generator rated voltage of 450 Vac and an AC voltage working range from 240 to 550 Vac, making it highly versatile for various applications.
The controller features powerful remote control capabilities through multiple communication modes including Ethernet, RS485, and WIFI, allowing seamless integration and monitoring for efficient energy control. It is also suitable as a reliable wind controller for renewable energy systems.
We accept a minimum order quantity of 1 set, with pricing negotiable to meet your specific requirements. Packaging is done carefully using foam and plywooden cases to ensure safe delivery.
Delivery time is typically 25 working days, and payment terms include T/T, Western Union, MoneyGram, and L/C for your convenience. Greef guarantees a strong supply ability to fulfill your orders promptly.
