Power Management System (PMS)
Integrated monitoring and control system of ESS provide optimal solutions for commercial and industrial end-users.
The Operation Center allows convenient and effective operation of ESS with simple clicks of a mouse.
· Operation Mode
- Schedule-based load leveling
- Demand-based peak shaving
- Independent operating substituting diesel generator
· Main Fuctions
- Monitoring and control of PCS, battery and other equipment
- Analysis of operational effectiveness such as cost saving
· PMS Operation Screen
- The energy flow on the grid system is displayed in map-type diagrams to assist intuitive monitoring of ESS operation status.
- ESS operation is updated on a real-time basis and is presented in graphs with immediate estimation of costs saved.
Power Conditioning System (PCS)
MW-level EnGather runs on bi-directional power control algorithms with excellent dynamic characteristics and performs stable charging/discharging control between the grid system and high energy-density batteries.
PCS is configured with stack modules for easy maintenance and is highly reliable in various applications(frequency regulation, emergency generator, load leveling, wind power, etc.)
· MW-level power control
· Quick response
· High efficiency (98% at rated power)
· Bi-directional power conversion
· Active/ reactive power control
· Power factor control
· Easy maintenance
| Model || LSEP-2000G1a(KOR) || LSEP-1000G1a(KOR) || LSEP-1000G1b(KOR) || LSEP-1000G1c(US) |
| AC || Rated Output || 2MW || 1MW || 1MW || 1MW |
| Rated Voltage || 3 ∅ 440VAC || 3 ∅ 380VAC || 3 ∅ 440VAC || 3 ∅ 480VAC |
| Current Output || 2,624A || 1,519A || 1,312A || 1,202A |
| Frequency || 60Hz || 60Hz || 60Hz || 60Hz |
| Current Harmonics || THD : total 5%, individual <3% |
| Efficiency || Max. 98%, >96% (at rated power, discharging efficiency) |
| DC || Battery Voltage || 750 to 1,050Vdc || 576 to 787Vdc || 750 to 1,050Vdc || 750 to 1,000Vdc |
| Battery Current || 2,666A || 1,736A || 1,333A || 1,400A |
| Standard || SGSF-04-2012-07 || IEEE1547a, UL1741, UL1998 |
| Communications || Modbus TCP, (DNP3.0 Option) |
| Ambient |
| Cooling Method || Forced-air cooling |
| Operating Temperature || -10°C ~ 40°C || -5°C ~ 40°C |
| Housing || IP || IP20/ IP21 |
| Dimensions(mm) || 5,650W x 1,130D x 2,020H || 2,910W x 1,130D x 2,020H || 2,510Wx1,126Dx2,020H |
HMI (Human Machine Interface) Display
It is mounted on the PCS panel and the operator can monitor and control PCS operation through HMI.
- Touch-panel 8.4” color LCD screen
- Real-time monitoring and diagnosis
- USB 2.0
- Grid connection mode
- Emergency generation mode
- Renewable Energy · Smoothing Control
Renewable energy sources are unpredictable and the availability of renewable energy is not constant, all of which may undermine quality of the grid system.
When connected with ESS, quality electricity can be supplied to the grid system in a stable manner
- Frequency Regulation · Frequency Regulation
A gap between power generation and demand on the grid causes the grid frequency to move away from its nominal value, and this can be regulated using ESS to improve quality of electricity.
Deploying ESS can also maximize utilization of coal-fired power plants to reduce power cost.
- Commercial/Industrial/Housing · Load Leveling
Time of use electricity pricing has three different pricing for light load, heavy load and maximum load. Electricity is charged during hours of light load and discharged during maximum load to reduce energy charge on your bill.
· Back-up Power
In case of blackout, ESS supplies electricity enabling swift response to emergencies.
· Peak Shaving
When electricity usage goes beyond what is contracted, electricity will be provided by ESS to prevent demand charge on your bill from going up.
- Microgrid · Grid connection/stand-alone
A microgrid is a discrete energy system consisting of diesel power generation, renewable energy, ESS, etc. and loads capable of operating in parallel with, or independently from, the main power grid.
ESS helps stabilize the grid system through power smoothing control as well as voltage and frequency regulation.
- BSS · Battery Swapping Station (BSS)
BSS is an optimal charging station for automatic battery swapping electric buses. When battery is running out of energy, a robot removes the battery pack from the bus and places on the top of the charging station for charging.
Bus stops are equipped with charging stations and battery is changed while the bus is stopped at bus stops.