Product Description:
The GREEF ENERGY multi-functional converter is a versatile device that combines multiple functions into one integrated system. It handles AC-to-DC rectification specifically for permanent magnet (PM) generators, manages battery charging, and performs DC-to-AC inversion. Additionally, it incorporates an advanced energy management system, making it a comprehensive solution for power conversion needs.
Equipped with a dual LCD touchscreen that can be customized according to user preferences, this converter leverages cutting-edge converter technology. This allows it to maintain stable voltage and frequency control for permanent magnet synchronous generators (PMSGs), guaranteeing a reliable and continuous power supply to the connected load.
Moreover, the device can be programmed to operate in a grid-tied mode. This configuration enables it to synchronize with the electrical grid, facilitating both operational functionality and grid charging capabilities. Such flexibility ensures optimal performance whether working independently or connected to the larger power infrastructure.
Technical Parameters:
Generator AC Input Side Parameters
The generator has a rated power of 100 kW. Its rated voltage is at least 320 Vac, with an optimal rated voltage of 450 Vac. The AC voltage operating range spans from 240 to 550 Vac. The maximum allowable AC current is 180 A.
Battery Input Data
The battery used is a lithium-ion type. The voltage range for the battery input is between 350 and 450 Vdc, with a rated battery voltage of 400 Vdc. The maximum charging and discharging current that the battery can handle is 250 A.
Output Side Parameters (Grid-Connected)
On the output side, 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, and the maximum allowed current is 173 A. The rated grid voltage is 400 V, and the permissible grid voltage ranges from 300 to 460 V. The grid frequency supports both 50 Hz and 60 Hz.
The current total harmonic distortion rate at rated power is less than 3%. The power factor is greater than 0.99, with an operating range between -1 and 1. The system can continuously support an overload capacity of 1.2 times the nominal power for one minute.
AC Side Parameters (Off-Grid)
For off-grid operation, the rated input voltage is 400 V with a voltage deviation of ±2%. The total harmonic distortion rate under linear load conditions remains below 3%.
Protection Features
The system includes optional over voltage and speed protection. It supports AC short-circuit protection as well as AC output overcurrent protection. Surge protection is provided at Level 2.
Basic Parameters
The maximum efficiency of the system is 95%. The topology comprises an AC-DC rectifier, DC-DC buck-boost converter, DC-AC inverter, and an energy management system (EMS). The operational ambient temperature ranges from -40 to 60 degrees Celsius. The protection level is rated at IP54.
Display and Cooling
The display shows multiple operational parameters including generator speed (rpm), input voltage (Vdc), input current (Vac), output power (kW), grid voltage (Vac), grid current (A), and cumulative power generation data for today, this month, last month, this year, and last year. It also includes a power curve setting feature.
The cooling method employed is intelligent air cooling. The maximum operating altitude is 4,000 meters, with derating applicable for altitudes above 3,000 meters. Standby power consumption is under 50 W.
Communication and Physical Specifications
The system uses an LCD smart touch screen for display. Communication modes include Ethernet, RS485, and WiFi.
Regarding physical dimensions, the height and width are both 1500 mm, and the depth is 1300 mm. The weight, excluding the dump load, is up to 600 kg.
Applications:
The GREEF ENERGY multi-functional converter is an exceptionally versatile system designed to accommodate a broad spectrum of applications, especially where dependable and intelligent power management is essential. This converter is engineered to offer efficient solutions across multiple domains.
One of its primary uses is within renewable energy systems. It is perfectly suited for integrating Permanent Magnet Synchronous Generators (PMSGs) derived from renewable sources such as wind turbines or hydro turbines into off-grid or hybrid power setups. This ensures a consistent and stable AC power supply for various loads.
Additionally, the converter excels in off-grid and backup power scenarios. It acts as the central hub for power conversion and management in standalone setups, including remote locations like cabins, telecom stations, or isolated sites. The system proficiently manages generator inputs, battery charging processes, and inverter outputs.
For grid-interactive systems, the device can be configured to operate in a grid-tied manner. This functionality allows for battery charging from the grid and, where regulations permit, the potential to feed excess power back into the electrical grid, enhancing energy efficiency and sustainability.
The converter is also ideal for industrial and commercial power management needs. It supports environments that require a stable power supply despite unbalanced loads. Furthermore, it offers remote monitoring capabilities via WIFI or LAN, and can be integrated seamlessly with building management systems through the Modbus communication protocol.
Beyond these applications, the GREEF ENERGY converter provides specialized control features. Optional functions include water gate motor control tailored for micro-hydropower plants and the integration of a Static Transfer Switch (STS) for smooth transitions between grid-connected and off-grid operation modes.
Overall, this product acts as a central platform that consolidates power generation, storage, consumption control, and grid connection functionalities. Its highly modular and configurable design allows it to be flexibly deployed in a variety of complex scenarios, ranging from residential off-grid energy storage systems to commercial backup power applications and small-scale renewable energy power plants.
Customization:
Greef offers comprehensive product customization services for the On Grid Controller model AC PCS, proudly made in China. Our grid tied controller is CE certified and designed to meet your specific needs with a minimum order quantity of just 1 set. The controller features an advanced PWM unloading + three-phase unloading system, ensuring efficient and stable operation across various applications.
The AC PCS model is equipped with a high-quality LCD SMART Touch Screen display, providing user-friendly interaction and precise control. It operates within a rated grid frequency of 50Hz/60Hz and supports a rated power of 100 kW. The AC voltage working range spans from 240 to 550 Vac, with an optimal generator rated voltage of 450 Vac.
We package the On Grid Controller securely using foam and plywood cases to ensure safe delivery. The standard delivery time is 25 working days, and we offer flexible payment terms including T/T, Western Union, MoneyGram, and L/C. Pricing is negotiable to accommodate your budget and project requirements.
With Greef's strong supply ability and commitment to quality, you can rely on our customized On Grid Controller solutions tailored to your grid tied system needs, featuring cutting-edge PWM unloading + three-phase unloading technology and an intuitive touch screen display for optimal performance.
