100 kW Power On Grid Controller with Lithium-ion Battery and EMS Topology for AC

Product Description:

The GREEF ENERGY multi-functional converter is designed to combine several critical functionalities into one compact system. It efficiently handles AC-to-DC rectification specifically for permanent magnet (PM) generators, facilitates battery charging, performs DC-to-AC inversion, and integrates an advanced energy management system.

Equipped with a configurable dual LCD touchscreen, this converter leverages state-of-the-art converter technology to deliver precise and stable control over voltage and frequency for permanent magnet synchronous generators (PMSGs). This ensures a smooth and uninterrupted power supply to connected loads.

Additionally, the device offers flexibility by allowing configuration for grid-tied operation. In this mode, it can seamlessly switch to connect with the electrical grid, enabling grid charging and synchronized operation with external power sources.

Technical 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 450 Vac, with an AC voltage working range spanning from 240 Vac to 550 Vac. The maximum AC current it can handle is 180 A.

The system uses a lithium-ion battery with a voltage range between 350 Vdc and 450 Vdc, and a rated battery voltage of 400 Vdc. The maximum charge and discharge current supported by the battery is 250 A.

For grid-connected operation, the rated charging and discharging power is 100 kW, with a maximum power of 120 kW. The rated charge and discharge current is 144 A, whereas the maximum charge-discharge current can reach up to 173 A. The rated grid voltage is 400 V, with an allowable voltage range from 300 V to 460 V. The rated grid frequency supports both 50 Hz and 60 Hz.

Additional performance characteristics include a total harmonic distortion rate of less than 3% at rated power and a power factor greater than 0.99, with a power factor range from -1 to 1. The system has an overload capacity of 1.2 times the nominal power continuously for one minute.

In off-grid mode, the rated input voltage is 400 V with a voltage deviation of ±2%. The total harmonic distortion rate for linear loads remains below 3%.

The system offers optional over voltage and speed protection. It also includes supported features such as AC short-circuit protection, AC output overcurrent protection, and Level 2 surge protection.

The maximum efficiency of the system reaches up to 95%. The topology consists of an AC-DC rectifier, DC-DC buck-boost converter, and DC-AC inverter integrated with an Energy Management System (EMS). The ambient operating temperature ranges from -40°C to 60°C, and the protection level is rated at IP54.

The display shows various important data including generator speed (rpm), input voltage (Vdc), input current (Vac), output power (kW), grid voltage (Vac), grid current (A), and power generation information such as daily, monthly, yearly statistics along with power curve settings. The cooling method uses intelligent air cooling to maintain optimal performance.

The equipment can operate at altitudes up to 4,000 meters, with derating applied when 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.

The dimensions of the system, excluding dump load, are 1500 mm in height, 1500 mm in width, and 1300 mm in depth. The weight of the unit, also excluding the dump load, is less than or equal to 600 kg.

Applications:

The GREEF ENERGY multi-functional converter is an exceptionally versatile system designed to meet the demands of various applications, especially where dependable and intelligent power management is essential. This device excels in providing adaptable solutions tailored for diverse energy needs.

One of its primary uses is within renewable energy systems. It is perfectly suited for integrating Permanent Magnet Synchronous Generators (PMSGs) sourced from wind turbines or hydro turbines into off-grid or hybrid power setups. This ensures a stable alternating current (AC) power supply to connected loads, facilitating reliable energy delivery.

Additionally, the converter plays a vital role in off-grid and backup power scenarios. It functions as the central unit managing power conversion in standalone systems such as remote locations, cabins, or telecommunications stations. Its capabilities encompass handling generator inputs, managing battery charging processes, and providing inverter output efficiently.

For grid-interactive systems, the GREEF ENERGY converter can be configured to operate in grid-tied mode. This configuration allows batteries to be charged from the grid and, where permitted by local regulations and system settings, enables the feeding of surplus energy back into the grid, enhancing energy utilization.

Industrial and commercial power management applications also benefit from this converter’s robust features. It ensures stable power supply even under unbalanced load conditions and offers options for remote monitoring via WIFI or LAN. Moreover, it can integrate seamlessly with building management systems through Modbus communication protocols.

Beyond these applications, the converter supports specialized control functions tailored to specific needs. Examples include controlling water gate motors in micro-hydropower plants or incorporating a Static Transfer Switch (STS) to enable smooth transitions between grid-connected and off-grid operation.

Serving as a comprehensive platform, this product integrates power generation, energy storage, consumption management, and grid connection functionalities. Its highly modular design and configurable options provide flexibility for deployment in a wide range of complex scenarios—from residential off-grid energy storage systems and commercial backup solutions to small-scale renewable energy power plants.

Customization:

Introducing the Greef AC PCS On Grid Controller, a high-performance grid tied controller designed for efficient energy management. Manufactured in China, this product is CE certified, ensuring quality and reliability for your energy systems.

With a rated charge and discharge current of 144A and a maximum charging & discharging current of 250A, the AC PCS model offers robust performance within an AC voltage working range of 240 to 550 Vac and a rated grid voltage of 400V. The advanced LCD SMART Touch Screen display provides intuitive control and detailed monitoring, including the monitoring of wind turbine speed and wind speed, making it ideal for integrating renewable energy sources into the grid.

We offer flexible purchasing options with a minimum order quantity of just 1 set and negotiable pricing to suit your project needs. Each unit is carefully packaged in foam and plywooden cases to ensure safe delivery within 25 working days.

Our payment terms include T/T, Western Union, MoneyGram, and L/C, providing convenience and security in transactions. With strong supply ability, Greef guarantees timely fulfillment of your orders.

Choose the Greef AC PCS grid tied controller for reliable, efficient, and smart energy management solutions that support seamless integration and comprehensive monitoring of wind turbine speed and wind speed.