1 projectOverview

The system is a high-power voltage cracking gas turbine and energy storage hybrid power system. It was officially accepted by the user at the YS64100 drilling team operation site of Bohai Drilling located in Duerbote Mongolian Autonomous County, northern Songliao Basin, providing favorable equipment support for the green transformation of the petroleum drilling industry.

The system mainly consists of 48 gas generators with a rated power of 300KW and 6 sets of 5MWH lithium iron phosphate energy storage systems. During the fracturing operation, the gas turbine and energy storage system jointly provide power for the electrically driven fracturing pump, with a total power of up to 24MW.

Gas turbine energy storage hybrid power plants, adding some energy storage to replace some gas turbines, are mainly aimed at solving the main problems of high initial investment, high operation and maintenance costs, and low power generation efficiency of gas turbine power plants.the systemMainly responsible for data collection, centralized monitoring, coordinated scheduling, power management, and other functions of gas turbines and energy storage systems in hybrid power plants,By analyzingOperation of gas turbines, energy storage systems, central control systems, etcCoordinated control,It can improve the overall efficiency and performance of multi unit power plants, increase the operating power of a single unit, and ensure comprehensive coordination and control through a unified energy management system to ensureThe overall stability and reliability of the power station operation.

two、 systemFeature Introduction

1. System functional structure

Power Management System for Gas Turbine Energy Storage Hybrid Power StationHPMS(hereinafter referred to asHPMSThe power management system can monitor and save parameters of the unit operation site in real time at the power station operation site, mainly including the power station operation single line diagram and real-time data/Historical data, real-time curves/Monitoring and protection functions such as historical curves and alarm protection can also be achieved through4G/5GThe network transmits the operating parameters to the China Petroleum Cloud platform throughPCComputer browser or mobile phoneAPPView and monitor parameters.

image1 System functions

2. systemMain Interface

On the main interface of the monitoring system, as shown in the figure2 Central control main interface (energy storage and discharge status) and diagram3Central control main boundarySurface (energy storage charging status)），Mainly displays the single line diagram of the operating units and energy storage of the power station, as well as engine heatOperating parameters such as work parameters, electrical parameters of generators and energy storage systems can be directly viewed for the operation, grid connection, alarm, fault and other status of the entire station's units and energy storage systems.

The main interface displays the grid connected operation status of the power station's operating units and energy storage through a single graph: the main busbar is orange when it is not energized and green when it is energized; When the main switch is in the open state, it displays orange and is closedDisplay green when in status. When the unit is not running, the line display is orange, and when it is live, it is green;When the energy storage is not running, the line display is orange and in discharge stateThe power display shows a positive value and the color is greenColor (as shown in the picture)2），When charging, the power display shows a negative value and the color is blue (as shown in the figure)3）.

image2 Central control main interface (energy storage and discharge status)

image3 Central control main interface (energy storage charging status)

3. Unit parameters

Instrument monitoring, power ratio, fault alarm, generator for unit operationPQDetailed information such as images.

image4 Unit parameters

Similarly, in the allowed group control state, as shown in the figure5 Single unit control, by clicking start/Shutdown and closing/Control the starting of this unit by opening the circuit breaker, etc/Shutdown and closing/Open the gate.

image5 Single unit control

4. energy storage parameters

【 Energy Storage Parameters 】 Monitoring screen, view detailed information such as instrument monitoring, power ratio, and fault alarms for energy storage operation.

image6 energy storage parameters

image7 Energy storage control mode switching

image8 Energy storage control parameter settings

image9 energy storagePCSstart-stop control

three、Energy storage monitoring

The local monitoring system of the energy storage system mainly consists of1 Integrated inverter and boost pry (includingPCS）The2 Set of energy storage battery compartment (includingBMS）Main component, mainly responsible for the unit'sPCSTheBMSWaiting for centralized monitoring.

1. Energy storage main interface

Unit data: including the number of online units, real-time active power, no real-time reactive power, and load rate (the active power value of all online units)/The rated power values of all units online.

PCSandBMSData: Includes two unitsPCSandBMSThe operating status of the battery box, the total voltage and current of the battery box, the maximum temperature, low temperature, maximum cell voltage, low cell voltage of the battery box, the cumulative charge and discharge capacity of the battery box, and the expected values of active and reactive power are also displayed. Two units are also shownESS Real time power valueSOCValueSOHValue.

image10 Energy storage main interface

2. energy storage parameters

This interface displays two unitsPCSandBMSVarious operational data have been added to the main interface display, including instrument displays and alarm fault displays.

image11 energy storage parameters

3. control logicParameter Settings

Energy storage charging and discharging limits: The maximum limits for charging power and discharging power are both2000KWThe maximum power for energy storage charging and discharging will not exceed2000KW.

image12 Parameter Settings

image13 Remote monitoring cloud platform

Remote monitoring of mobile phonesAPPAs shown, it is possible to directly view the thermal parameters of the engine, electrical parameters of the generator, energy storage, and other operating parameters of the entire station unit.

image14 Remote monitoring of mobile phonesAPP

four、Project Significance

This project is jointly developed by Wuhan Shuntong and Jichai Power. As a high-power drilling solution relying on "gas power generation+energy storage regulation" to replace diesel power, the system is low-carbon, environmentally friendly, intelligent and efficient. Compared with traditional drilling and production equipment, it occupies a smaller area, consumes less energy, and has obvious advantages in energy conservation, emission reduction, cost reduction and efficiency improvement.

According to the same operating conditions, this "hybrid" scheme has increased the comprehensive benefits by 16% compared to the traditional diesel drive scheme. At the same time, the operation mode of this system is more friendly to the generator set and the equipment utilization efficiency is higher.

By using this system, during the intermittent period of hydraulic fracturing operations, the gas generator set can be used to charge the energy storage system. This not only reduces the number of unit starts and stops, lowers gas losses, but also ensures that the unit continues to operate in the high-efficiency zone, effectively improving the efficiency of gas power generation.

According to Jichai Power's market plan, based on this breakthrough, we will make every effort to promote the integration of gas turbines and energy storage hybrid power systems in the Daqing Gulong continental regionShale oilThe application of demonstration zones, through more extensive market practice, "injects green wings" into the development of traditional energy and achieves low-carbon transformation and development.