Project background

The battery energy storage system of the energy storage power station is used to cut peak and fill valley for the general power grid distribution users, then the power frequency (50Hz) to all electrical appliances and electricity output, is the use of low-price time in the high-price period of electricity, its peak-valley price difference for users to bring considerable energy-saving benefits, because it has been greatly promoted.

System overview

EMS Energy Management System is an integrated energy management system for lithium battery energy storage power plant, which realizes real-time monitoring, diagnosis and early warning, panoramic analysis and advanced control functions, to meet the requirements of comprehensive Operation Monitoring, intelligent safety analysis and dynamic panoramic analysis, the safe, reliable and stable operation of energy storage power plant is guaranteed.

EMS Energy Management System is suitable for system monitoring, power control and energy management monitoring system of energy storage station, micro-grid, new energy energy storage integration, etc. , to realize the centralized monitoring of BMS and PCS, unified operation, maintenance, maintenance and management, to realize the rapid removal of faults, in the peak load to ease the pressure of the power grid, reduce the cost of power grid operation, improve economic efficien.

System architecture

Implement functionality

1.System overview

1)Conduct real-time data acquisition and monitoring, including key operational information of the station, including the station rated power, the station rated capacity, the number of station PCS operating units and operational data sent from the station, analyze the system operation status, mining or extracting useful information, such as energy storage system SOC, SOH, energy storage charge and discharge efficiency, etc. .

2)The map shows the geographic location of the energy storage station.

3)Show recent historical data: Today and Yesterday Peak Power, this month, this week, Yesterday, 24-hour charge and discharge active power curve.

2.Monitoring and control

1)Display the current charge and discharge status of the storage station, and related key data situation

2)The accident summary of several energy storage units under the energy storage power station can be viewed in detail by clicking on the light plate.

3)The display data of the energy storage power station in the planned control includes the charge-discharge real-time curve, the day-to-day plan curve and the intra-day ultra-short-term curve.

3.Plan ahead

1)Charge and discharge plan maintenance: this page shows the user the charge and discharge plan of the energy storage station, the new energy forecast information curve and the energy storage and discharge information curve. Users in the"Charge and discharge plan maintenance" column can add, modify, delete the charge and discharge plan of energy storage station. The control strategy of peak load and valley filling, new energy absorption, peak load and valley filling, and emergency power protection can be carried out by filling-one-discharge, two-charge-two-discharge or one-charge-two-discharge modes.

2)History Plan Query: through the date selection query the corresponding time period of the scheduling plan value or the system automatically generated storage charge and discharge plan value

4.Call the police

The user can query and export the historical alarm information through the alarm interface. Accurate and easy to find historical alarm information, without having to search through the system every time.