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Applied to AC coupled energy storage systems such as grid-connected energy storage and micro-grid energy storage, Power Conversion System is a device that connects the battery pack and the power grid (or load) and realizes the bidirectional conversion of electric energy. It can convert the DC current of the battery into alternating current and send it to the power grid or to the AC load. The alternating current of the power grid can also be rectified into direct current to charge the battery.
PCS is widely used in power system, rail transit, military industry, petroleum machinery, new energy vehicles, wind power generation, solar photovoltaic and other fields, to achieve two-way energy flow in power grid peak cutting and valley filling, smooth new energy fluctuations, energy recycling and other occasions, actively support the voltage frequency of the power grid, and improve the quality of power supply.
Our PCS offers modular design for flexible power configuration and bi-directional conversion (AC/DC, DC/DC). With a built-in transformer, it supports direct grid connection and self-generation for micro-grid applications. Dual-stage topology ensures wide DC input voltage range. Seamless communication via RS 485, CAN, and Ethernet. Optional PV interface enables hybrid functions. Experience efficient, adaptable power management with our PCS.
The power conversion system (PCS) is a four-quadrant converter that can control the AC/DC side and realize the AC/DC bidirectional conversion of electric energy. PCS can realize the bidirectional energy transfer between the DC battery of the battery energy storage system and the AC power grid, and realize the charge and discharge management of the battery system, the tracking of the load power at the grid side, the control of the charge and discharge power of the battery energy storage system, and the control of the voltage at the grid side in the off-grid operation mode through the control strategy.
1. In the power grid peak cutting and valley filling, smooth new energy fluctuations, energy recycling and other occasions to achieve two-way energy flow, to actively support the voltage frequency of the grid, improve the quality of power supply.
2. It can be used as an emergency power supply to provide power to users during the power failure of large power grids or other power supplies to improve the reliability of power supply.
3.It can be used in the stability of the power system, which can respond to the fluctuation of the load through the rapid storage of electric energy, absorb excess energy or supplement the shortage of energy, realize the dynamic adjustment of high power, and adapt to the frequency adjustment and voltage power factor correction, so as to improve the stability of the system operation.
Model type | AK-PCS1-250K | AK-PCS1-500K | |
Utility-interactive Mode | |||
Battery Voltage Range | 600 – 900 V | ||
Max. DC Current | 550 A | 1100 A | |
Max. DC Power | 275 kW | 550 kW | |
AC Voltage | 400 V +/- 15% | ||
AC Current | 360 A | 720 A | |
Nominal AC Output Power | 250 kW | 500 kW | |
AC Frequency | 50 Hz / 60 Hz +/-2.5 Hz | ||
Output THDi | ≤ 3% | ||
AC PF | -1 to 1 | ||
Stand-alone Mode | |||
Battery Voltage Range | 600 – 900 V | ||
Max. DC Current | 550 A | 1100 A | |
AC Output Voltage | 400 V +/- 10% | ||
AC Output Current | 360 A (Max. 396 A) | 720 A (Max. 792 A) | |
Nominal AC Output Power | 250 kW | 500 kW | |
Max. AC Power | 275 kW | 550 kW | |
Output THDu | ≤ 3% (Linear load) | ||
AC Frequency | 50 Hz / 60 Hz | ||
Overload Capability | 110%: 10 min 120%: 1 min | ||
Physical | |||
Peak Efficiency | ≥ 97% | ||
Cooling | Forced Air Cooling | ||
Noise | ≤ 70 dB | ||
Enclosure | IP20 (IP54 optional with outdoor cabinet) | ||
Max. Elevation | 3000 m (> 2000 m derating) | ||
Operation Ambient Temperature | -20°C – +50°C, derating over 45°C | ||
Humidity | 5% – 95% non-condensation | ||
Dimension (H x W x D) | 2100 mm X 1000 mm x 1300 mm | ||
Weight | 1600 KGS | 2700 KGS | |
Installation | Vertical Installation | ||
Other | |||
Isolation | Built-in Transformer | ||
Protection | OTP, AC OVP / UVP, OFP / UFP, AC Phase Reverse, Fan/Relay Failure, OLP, GFDI, Anti-islanding | ||
AC Connection | Grid connected: 3-phase + PE Off-grid: 3-phase + N + PE | ||
Display | 10.1” Touch Screen | ||
Support languages | English (other languages upon request) | ||
Communication | RS 485, CAN, Ethernet |