ARM+FPGA+ADC-based Energy Storage Coordinated Controller/EMS, Supporting Fully Domestic Production and Real-time Systems

The Coordinated Controller is a versatile control device with flexible and customizable logic, allowing control logic to be tailored to specific application environment requirements. It has a wide range of applications, serving as a coordinated controller for new energy stations (photovoltaic, wind power, energy storage), or as a microgrid controller or integrated controller.

Product Features

1. Supports graphical logic configuration tools for on-site visual configuration of device interface signals, processing logic, output control, and fault alarms, as well as program upgrades, allowing flexible customization of functions according to on-site requirements.
2. Features multi-channel signal acquisition and multi-channel control output.
3. Equipped with various communication interfaces, possessing powerful and fast communication capabilities, and fully supporting the IEC61850 standard (including GOOSE).
4. The device adopts an integrated design with a fully enclosed rack-mounted chassis. Strict separation of strong and weak currents significantly enhances anti-interference capability, and all electromagnetic compatibility standards meet IEC relay protection levels.

Main Functions

Real-time Acquisition

1. Analog Acquisition: Three-phase AC voltage and current acquisition: measures and calculates voltage, current, active power, reactive power, power factor, and frequency. Up to 24 AC analog quantities can be acquired.
2. Status Quantity Acquisition: Acquires signals such as switch status, energy storage, interlocking, and stability control system commands. Tele-signal resolution is no greater than 3 milliseconds. Software debouncing time is configurable from 4 to 1000 milliseconds. Up to 120 digital input quantities can be acquired.
3. DC Power Acquisition: Features up to 16 channels of DC 4~20mA signal acquisition with 3kVDC isolation between channels, suitable for measuring auxiliary control related equipment.

Real-time Control

1. Digital Output: Output of control commands. Digital outputs (DO) can have up to 4 groups of independent start controls, with 6 relay outputs per group, totaling 24 outputs. All internal logical operations can ultimately output digital signals, and the capacity of the digital output nodes meets control and protection requirements.

Communication Functions

1. Communicates with PCS and BMS to acquire data such as charge/discharge active power, reactive power, battery SOC, maximum charge/discharge power, and current operating status.
2. Communicates with relay protection, transformer monitoring and control, and other devices to acquire relevant data.
3. Sends control commands via communication, with fast control commands transmitted via GOOSE or other protocols.

Operation Monitoring

1. Can monitor multiple electrical quantities such as voltage, current, active power, and reactive power for up to 4 grid connection points, and can monitor information such as the status of an equal number of incoming and outgoing line switches.
2. Can record, store, and upload various types of events to the master station, including status changes, remote control operations, and power loss alarms.
3. Possesses historical data storage capability: including load curves for no less than 1 month, no less than 256 event records, 256 operation records, and no less than 10 device anomaly records.
4. Features time synchronization function: can receive time synchronization commands from the master station or various time synchronization commands such as network time or time pulses from local time synchronization devices, to maintain synchronization with the system clock.
5. Features communication monitoring function: channel monitoring for each communication interface of the device.

Relay Protection Functions

1. Built-in conventional protection elements such as overcurrent, under/overvoltage, and under/overfrequency, allowing for more complex protection functions through internal logic programming.
2. Includes PT and CT open-circuit detection functions.
3. Features fault recording (oscillography) function.
4. Records various information such as protection self-check, operation, faults, and actions, and uploads it via communication.

Coordinated Control Functions

1. Primary Frequency Regulation Function: Based on frequency fluctuations at the energy storage power station's grid connection point, it autonomously performs millisecond-level rapid and appropriate active power output to support grid frequency from the energy storage power station.
2. Dynamic Reactive Power Voltage Regulation Function: Based on voltage fluctuations at the energy storage power station's grid connection point, it autonomously performs millisecond-level rapid and appropriate reactive power output to support grid voltage from the energy storage power station.
3. Precise Load Shedding Function: Receives precise shedding commands from source-grid-load control terminals (via hard-wired input or communication commands) and converts these commands into maximum discharge power or preset power output to support the stability control system.
4. Peak Shaving and Valley Filling Function: Charges during off-peak hours and discharges during peak hours. Charge/discharge periods can be arbitrarily set or follow planned curves issued by the dispatch center. Typically involves two charge and two discharge cycles per day.
5. Receives dispatch commands to implement full-station AGC/AVC functions.