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Matrix-Type Energy Storage Back-to-Back Routing Test System (3×2.5 MW)

The MatrixLink-PST series is a high-efficiency and high-precision energy management solution tailored for the R&D and validation of advanced energy storage systems. At its core, the system integrates multiple high-precision DC energy storage converters, AC/DC bidirectional regenerative converters with loss compensation, and a high-voltage DC bus. This architecture enables the simulation of complex energy flow scenarios and provides reliable, high-performance testing for various types of energy storage equipment.

Overview
Recommended Products

System Functions

✓ Battery pack capacity testing

✓ Battery pack charge/discharge performance testing

✓ Battery pack charge/discharge efficiency analysis

✓ State-of-charge (SOC) retention and recovery capability testing

✓ Battery pack cycle life testing, including multi-channel cycling tests

✓ DC internal resistance measurement

✓ Pulse charge/discharge response testing

✓ Dynamic working condition simulation testing

✓ Overcharge and over-discharge rate endurance testing

System Topology Diagram

System Advantages

● High efficiency in feeding power back to the grid

● Patent-grade common DC bus topology enabling energy transfer between channels on the DC side

● DSP + IGBT-based power control architecture for fast and precise energy management

● Margin-based real-time power control algorithm ensures stable and reliable operation

● Configurable output voltage, current, and power ranges, compatible with various battery specifications and models

● 25-year hardware design lifespan (full system uses IGBT modules and film capacitors to ensure product quality)

● Adaptive AC grid connection technology, eliminating the need to distinguish power grid phase sequence

● Advanced software-based phase-locked control technology with active rectification and inversion; total harmonic distortion of input current (THDI) ≤ 5%

Equipment Parameters (Single Channel Parameters)

Key Technical Parameters

No.	Parameter Name	Reference Range/Accuracy Requirement	Remarks
1	Equipment Model	PST6000-3CH	3*2.5MW, supports sequential ground testing at 2.5MW
2	Number of DC Channels	3	Channels per cabinet (customizable)
3	Single Channel Rated Power	2500kW	Supports high-power output
4	Grid Connection Power	400kW	Loss compensation/surplus feedback unit power
5	Output Voltage Range	80–1520V	Charging: 0V–1520V
6	Output Voltage Accuracy	±(0.05%FS + 0.05%RD)	Customizable for higher precision requirements
7	Output Current Range	±2400A	Single-channel current: ±2400A
8	Output Current Accuracy	±(0.05%FS + 0.05%RD)	Customizable for higher precision requirements
9	Energy Feedback Mode	AC/DC hierarchical energy recycling	Priority given to energy recycling between DC channels; grid interaction occurs only if internal balance is insufficient.
10	System Comprehensive Efficiency	>97.5%	Recycling efficiency
11	Operating Voltage	AC380V ± 15%	Three-phase five-wire (grounding resistance ≤5Ω)
12	Operating Frequency	50Hz ± 2Hz
13	Power Factor	99%	At half load or above
14	Current Harmonic (THD)	<5%	At half load or above
15	Input Protection	Grid undervoltage protection
16		Grid overvoltage protection
17		Grid overcurrent/overload protection	Includes circuit breaker overcurrent protection
18		Grid phase loss protection
19		Grid frequency anomaly protection
20		Transformer overtemperature protection
21		Lightning protection	Includes lightning protection devices
22		Anti-islanding protection
23	Parallel Mode	Supports continuous channel parallel operation	-
24-1	Continuous Sampling Interval	<10ms	Includes current and voltage sampling
24-2	Current Rise Time	<50ms	10%–90% of current range
24-3	Current Transition Time	<100ms	-90%–90% of current range
25	Output Voltage Resolution	0.1mV
26	Output Current Resolution	0.1mA
27	Output Power Resolution	0.1W
28	Output Protection	Undervoltage protection
29		Overvoltage protection
30		Short-circuit protection
31		Overtemperature protection
32		Reverse connection protection
33		Overcurrent protection
34		Channel communication anomaly protection	Automatically disconnects output in case of communication failure
35		Power-off protection	Automatically disconnects contactor during power loss
36		Emergency stop protection	Includes emergency stop button