Product Description:
The GREEF ENERGY multi-functional converter combines several key functions into a single device. It supports AC-to-DC rectification specifically designed for Permanent Magnet Generators (PMGs), enabling efficient conversion of alternating current to direct current. Additionally, it offers battery charging capabilities, allowing for effective energy storage management.
Beyond rectification and charging, the converter also performs DC-to-AC inversion, converting stored or generated DC power back into alternating current as required. It is equipped with an integrated energy management system that optimizes the usage and distribution of electrical energy within the setup.
A notable feature of this converter is its configurable dual LCD touchscreen, providing users with an intuitive interface for monitoring and controlling the system. Utilizing advanced converter technology, it delivers stable voltage and frequency regulation for Permanent Magnet Synchronous Generators (PMSGs), thereby ensuring a reliable and uninterrupted power supply to connected loads.
Moreover, the device can be programmed to operate in a grid-tied mode. In this configuration, it can synchronize with the electrical grid for seamless operation and enable grid charging, offering flexibility and enhanced integration with existing power infrastructure.
Technical Parameters:
Generator AC Input Side Parameters
The rated power of the generator is 100 kW, with a minimum rated voltage of 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 allowed on this side is 180 A.
Battery Input Data
This system uses a lithium-ion battery with a voltage range between 350 and 450 VDC. The rated battery voltage is set at 400 VDC. The battery supports a maximum charging and discharging current of 250 A, ensuring robust performance during operation.
Output Side Parameters (Grid-Connected)
When connected to the grid, the rated charging and discharging power is 100 kW, with a peak capability up to 120 kW. The rated charge and discharge current is 144 A, while the maximum current can reach 173 A. The grid operates at a rated voltage of 400 V, with an acceptable voltage range from 300 to 460 V. The frequency is adjustable between 50 and 60 Hz.
The system maintains a current total harmonic distortion rate below 3% at rated power and achieves a power factor exceeding 0.99, with a power factor range from -1 to 1. It also supports an overload capacity of 1.2 times the nominal power for one minute continuously.
AC Side Parameters (Off-Grid)
For off-grid operation, the rated input voltage is 400 V with a voltage deviation tolerance of ±2%. The total harmonic distortion rate when operating with a linear load remains under 3%. Protection features include optional over-voltage and speed protection, supported AC short-circuit and output overcurrent protection, and surge protection rated at Level 2.
Basic Parameters and Protection
The system boasts a maximum efficiency of 95%. Its topology includes an AC-DC rectifier, a DC-DC buck-boost converter, and a DC-AC inverter integrated with an energy management system (EMS). It operates within an ambient temperature range from -40°C to 60°C and has an IP54 protection level for environmental resistance.
Display and Cooling
The display provides real-time data including generator speed (rpm), input voltage (VDC), input current (VAC), output power (kW), grid voltage (VAC), grid current (A), and power generated across various timeframes (daily, monthly, yearly, last year). The system also features power curve settings. Cooling is managed through intelligent air cooling to maintain optimal temperature.
Additional Specifications
The maximum operating altitude is 4,000 meters, with performance derating occurring above 3,000 meters. Standby power consumption is kept under 50 W. Communication interfaces include Ethernet, RS485, and Wi-Fi.
Dimensions and Weight
The equipment measures 1500 mm in height, 1500 mm in width, and 1300 mm in depth (excluding the dump load). The total weight without the dump load is less than or equal to 600 kg.
Applications:
The GREEF ENERGY multi-functional converter is an extremely versatile device designed to meet a broad spectrum of power management needs. It excels in scenarios demanding dependable and intelligent energy control. This system is particularly effective across several core application areas.
In renewable energy systems, the converter seamlessly integrates Permanent Magnet Synchronous Generators (PMSGs) sourced from wind turbines or hydro turbines into off-grid or hybrid energy setups. This integration ensures the delivery of stable AC power to connected loads, enhancing the reliability of renewable installations.
For off-grid and backup power scenarios, the GREEF ENERGY converter acts as the central hub for power conversion and management. It is perfectly suited for standalone environments such as remote locations, cabins, or telecommunication stations. Its capabilities include managing inputs from generators, overseeing battery charging processes, and regulating inverter outputs.
When configured for grid-interactive systems, the converter enables grid-tied operations. This allows for charging batteries directly from the grid and potentially feeding excess power back into the grid, subject to compliance with local regulations and system configurations.
In industrial and commercial settings, the device supports stable power supply even under unbalanced load conditions. It offers advanced features such as remote monitoring through WiFi or LAN and integration with building management systems using the Modbus protocol, enhancing operational oversight and control.
Additionally, the converter provides specialized control functionalities tailored to unique requirements. These include water gate motor control applicable to micro-hydropower plants and the option to integrate a Static Transfer Switch (STS) for smooth transitions between grid-connected and off-grid power sources.
Overall, this product functions as a core platform that consolidates power generation, storage, load management, and grid-tie capabilities. Its modular and highly configurable design allows for flexible deployment across diverse and complex environments, ranging from residential off-grid systems and commercial backup power solutions to small-scale renewable energy power stations.
Customization:
Greef offers customizable On Grid Controller products, model AC PCS, manufactured in China with CE certification to ensure quality and reliability. Our grid tied controller is designed to meet your specific needs with a minimum order quantity of just 1 set and negotiable pricing to suit your budget.
Featuring a rated voltage (Vac) of ≥ 320 and a maximum efficiency of 95%, this grid tied controller excels in performance and energy management. It operates efficiently within an environment temperature range of -40 to 60 degrees Celsius, making it suitable for various climates.
Our DC DC Switching Controllers come equipped with multiple communication modes including Ethernet, RS485, and WIFI, allowing seamless integration and remote monitoring. The intelligent air cooling method ensures optimal thermal management for long-lasting operation.
Packaging is handled carefully with foam and plywooden cases to guarantee safe delivery. Delivery time is typically 25 working days, and we accept flexible payment terms including T/T, Western Union, MoneyGram, and L/C.
With strong supply ability, Greef is your trusted partner for high-quality, customizable grid tied controller solutions tailored to your project requirements.
