Energy Storage System
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Client: HNAC
Date: Jul 19,2019
Info: Phasellus ultrices t
Launch Project
Energy Management System (EMS)
Energy Storage System Technical Data:
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Item
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Specification and Data
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Remarks (Characteristics)
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Max. output power
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500KW
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Optional, setup
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Rated energy-storing capacity
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1MWh
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Optional
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DC Rated voltage
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DC845V
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High energy storage, low cost, long life lithium iron phosphate battery
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Energy conversion rate
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≥88%
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System efficiency (including battery charge and discharge)
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Heating and ventilation design
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Constant temperature system
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Low power consumption, independently adjustable air duct and filtered salt spray function,
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Container
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40HC
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Being customized
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Other aux. device
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1 set
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Including gas automatic fire extinguishing system; indoor temperature control system; all-round video monitoring system
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Auxiliary system
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HNAC Cloud Monitoring System
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Remote monitoring, mobile APP
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Energy Storage System Function：
Energy Management System (EMS) Description：
HNAC HZ3000-MEMS Energy Management System achieves economical and efficient implementation of different applications by optimizing energy storage control, distributed power output and load retreat for current abandoned wind, light load, and peak-to-valley spreads. Scenario (power generation side, grid side, user side) and energy management in different modes of operation.
Energy Management System (EMS) Features:
(1) Be provided with the customized design according to user’s requirements;
(2) Be equipped with complete data acquisition and monitoring functions;
(3) Be able to connect to the dispatch center system and accept the charge and discharge control commands issued by the dispatch center;
(4) Enable friendly data transmission between BMS and PCS devices;
(5) Adopt advanced control strategies to achieve peak-to-peak frequency modulation, peak-to-valley arbitrage, and reduction of maximum demand;
(6) Support the linkage between the local and cloud monitoring.
Energy Management System (EMS) Functions:
(1) Operation data acquisition and monitoring
Real-time acquisition and processing the analog quantity, state quantity etc information transmitted by PCS, BMS, transformer protection measurement and control, and other protection and measurement and control equipment, etc., and display and forward real-time values, historical statistics, trends, alarm events, etc. in the monitoring screen, and save to the historical data server.
(2) Energy storage SOC independent maintenance control
The energy storage SOC and the current charge and discharge power are monitored in real time. When the system does not have any business function to control the energy storage battery, the battery can be kept ready and discharged at any time, and the SOC of the energy storage battery is kept within a reasonable range.
(3) Smooth load
Power generation side - real-time monitoring of power generation, by controlling the charge and discharge of energy storage batteries, or controlling the power generation output of other energy generation forms to reduce the sudden change of distributed power output, so that the distributed power output is smooth;
Grid side - real-time monitoring of grid output power, control of grid output power by controlling charge and discharge of energy storage batteries;
The user side - real-time monitoring of the user's power consumption, by controlling the charge and discharge of the energy storage battery, to achieve peak clipping of the user's power curve.
(4) Time-of-use price
The system can divide the day into different time periods, and control the energy storage battery to perform different charging and discharging strategies at different time periods, so that the user can realize the peak-valley spread benefit.
(5) On-grid and off-grid switching control
The system detects the switch state of the grid-connected point and the on grid- and off-grid state sent by the on grid and off-grid device to determine the current on-grid and off-grid status of the system; when the grid-connected network is disconnected from the network, the off-grid power allocation strategy is automatically executed, and when the network is disconnected from the network Automatically restore the preset grid-connected power allocation strategy.
(6) Power distribution control
In the grid-connected mode, the scheduling command is received, and the power adjustment commands issued according to the current SOC, SOH, charging and discharging state, and alarm state of the energy storage are distributed to the distributed power modules.
(7) Anti-power reversal control
When the distributed power generation is greater than the load power, the zero power exchange control is realized, that is, when the micro grid is sent to the system, the zero power exchange control function ensures the micro grid by increasing the energy storage charging power or reducing the distributed power generation output. Do not send power to the distribution network.
(8) Power security boundary control
In the microgrid system of distributed power sources such as wind turbines and photovoltaics, due to the sudden fluctuation of the large power load and the system entering the safe and stable boundary, the system adopts a series of emergency control measures to increase/decrease the output of distributed power and energy storage to make it return to the safe operating range.
