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China 100KT 110KT 125KT Power Conversion System Inverter AC/DC Dual Backup - Reliable Suppliers and Factory Solutions
🔋 Power Conversion Invertor (PCS)
The PCS is the core equipment in an energy storage system and is often referred to as the "brain" of the system. Its main function is to convert power between alternating current (AC) and direct current (DC), enabling the control and dispatch of electrical energy.
✔ Key Functions Include:
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AC/DC Conversion (Rectification/Inversion):
Charging (AC → DC): When there is excess power from the grid (or AC power generated by a PV inverter), the PCS converts it into DC electricity to store in the batteries. This process is called rectification.
Discharging (DC → AC): When electricity is needed, the PCS converts the DC power from the batteries into AC power and supplies it to the grid or to the load (electrical equipment). This process is called inversion. -
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Grid-Tied and Off-Grid Operation: The PCS enables the energy storage system to switch between grid-tied mode (connected to the grid) and off-grid mode (operating independently, e.g., in a microgrid) as needed.
📶 EMS Smart Energy Management System Features
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Multiple configurable operating modes: off-grid, grid-tied, and grid charging
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LCD smart touch Screen Display
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AC/DC dual backup for auxiliary power supply
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Control Technology for Unbalanced Loads
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Standard RS 485 Modbus RTU protocol
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WIFI / LAN Remote monitoring and control app available (optional)
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Support adding Static Transfer Switch (STS) for Grid-Tie/Off-Grid Applications (optional)
| Model | Mars-125KT | Mars-110KT | Mars-100KT |
|---|---|---|---|
| DC side parameters | |||
| Maximum DC voltage | 1,000V | 1,000 V | 1,000v |
| Minimum DC voltage[1] | 580V | 580V | 580V |
| DC voltage operating range | 350-1000 V | 350-1000V | 350-1000v |
| Maximum DC current | 216A | 190A | 173A |
| AC side parameters (grid-connected) | |||
| Rated charging/discharging power | 125kW | 110kW | 100kw |
| Maximum charge and discharge power | 150kW | 132kW | 120kw |
| Rated charge and discharge current | 182A | 160A | 145A |
| Maximum charge-discharge current | 217A | 192A | 174A |
| Rated grid voltage | 400V | 400V | 400V |
| Permissible grid voltage range | 300-460 V | 300-460 V | 300-460v |
| Rated grid frequency | 50Hz/60Hz | 50Hz/60Hz | 50Hz/60Hz |
| Current total harmonic distortion rate | <3% (at rated power) | <3% (at rated power) | <3% (at rated power) |
| Power factor | > 0.99 | > 0.99 | >0.99 |
| Power factor range | -1~1 | -1~1 | -1~1 |
| Overload capacity | 1.2 Pn, continuous for 1 minute | 1.2 Pn, continuous for 1 minute | 1.2 Pn, continuous for 1 minute |
| AC side parameter (off-grid) | |||
| Rated input voltage | 400V | 400V | 400V |
| Voltage deviation | ±2% | ±2% | ±2% |
| Total harmonic distortion rate | <3% (linear load) | <3% (linear load) | <3% (linear load) |
| Efficiency | |||
| Maximum efficiency | 98.9% | 98.9% | 98.9% |
| Protection | |||
| DC reverse polarity protection | Supported | Supported | Supported |
| AC short-circuit protection | Supported | Supported | Supported |
| AC output overcurrent protection | Supported | Supported | Supported |
| Surge protection | Level 2 | Level 2 | Level 2 |
| Insulation resistance monitoring | Supported | Supported | Supported |
| Temperature protection | Supported | Supported | Supported |
| Basic parameters | |||
| Topology | Without transformer | Without transformer | Without transformer |
| Ambient temperature | -40℃~+60℃ | -40℃~+60℃ | -40℃~+60℃ |
| Protection level | IP20 (module and battery pack integrated solution, system protection level is IP54 or above) | IP20 (module and battery pack integrated solution, system protection level is IP54 or above) | IP20 (module and battery pack integrated solution, system protection level is IP54 or above) |
Frequently Asked Questions
❓ What is the primary role of the Power Conversion Inverter (PCS)?
The PCS acts as the "brain" of the energy storage system. Its primary role is to convert electricity between alternating current (AC) and direct current (DC) to control and dispatch electrical energy.
❓ Does the Mars PCS series support off-grid operation?
Yes. The system enables seamless switching between grid-tied and off-grid modes. It also supports adding an optional Static Transfer Switch (STS) for enhanced grid-tie/off-grid applications.
❓ What are the differences between the Mars-125KT, Mars-110KT, and Mars-100KT models?
The models differ primarily in their rated charging/discharging power (125kW, 110kW, and 100kW respectively) and maximum DC/AC currents, allowing you to choose the best fit for your load requirements.
❓ What safety protection features are integrated into this PCS?
The system features comprehensive built-in protections, including DC reverse polarity protection, AC short-circuit protection, AC output overcurrent protection, Level 2 surge protection, insulation resistance monitoring, and temperature protection.
❓ How is the EMS smart energy management system monitored?
The system features an LCD smart touch screen display for local control, supports standard RS 485 Modbus RTU protocol, and offers optional WIFI/LAN remote monitoring and control via a dedicated application.
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