Core Roles of the ACS6000 System (Medium-Voltage Frequency Converter)
GBU72 (Grid Circuit Breaker Unit)
PCS6000 System: As an intelligent grid-connected circuit breaker, it integrates power electronics technology and intelligent control algorithms to achieve rapid grid fault isolation, overload/short-circuit protection, undervoltage protection, and arc extinguishing functions, ensuring the safe grid connection of wind power/energy storage systems.
ACS6000 System: As a gate drive control cabinet, it controls the on/off switching of IGBT/GTO power devices, achieving high-reliability drive for high-power motors (such as metallurgical and mining equipment), and supporting precise torque/speed control.
3BHE055094R0002 (GBU72 Control Cabinet)
PCS6000 System: Responsible for grid-side circuit breaker control, grid synchronization, communication coordination, and status management, supporting circuit breaking and synchronization control for high-voltage motor drives (such as steel rolling and cement) and wind power/energy storage systems.
ACS6000 System: Integrates power management, circuit breaker drive, and system status acquisition, adapting to the power control and protection of medium-voltage frequency converters (such as ACS6000).
3BHE031197R0001 (Control Unit Component)
PCS6000 System: As the IGCT module drive unit, it supports high-speed switching pulse control, reducing converter losses and improving efficiency; it integrates overcurrent/overvoltage protection and fiber optic communication interface.
ACS6000 System: As the main control board of the rectifier/inverter unit (such as AMC3), it handles power feedforward control, current/voltage detection, and fast short-circuit protection, realizing direct torque control (DTC).
3BHB030310R0001 (IGCT Power Module)
PCS6000 System: As a core power device (e.g., 5SHY4045L0006), it supports 4500V/4000A high-voltage switching for wind power converters, STATCOM reactive power compensation, and grid dynamic response.
ACS6000 System: Integrated into the voltage limiting unit (VLU), it stabilizes the DC bus voltage, protects the IGCT from overvoltage/overcurrent damage, and ensures stable operation of the motor drive system.
GBU72 (3BHE055094R0002)
Function: As a power conversion control unit in the energy storage PCS, it realizes bidirectional energy conversion (charging/discharging) and supports grid-connected/off-grid mode switching.
Features: Integrated four-quadrant operation capability, supports advanced functions such as peak shaving and valley filling, and low voltage ride-through, and is compatible with battery energy storage systems (such as lithium batteries and supercapacitors).
Application Scenarios: Power conversion core of large-scale energy storage power stations and industrial/commercial energy storage systems.
3BHE031197R0001
Function: As a power management module in a PCS, it controls circuit breaker closing/opening, achieving grid isolation and power distribution.
Features: Supports multi-unit parallel operation, adaptable to centralized/string PCS architectures, improving system scalability.
Application Scenarios: Input/output side protection of energy storage systems, ensuring safe interaction between battery packs and the grid.
3BHB030310R0001
Function: As an IGCT drive module in a PCS, it supports high-precision power control and integrates fault detection and fast protection.
Features: Adaptable to two-stage PCS topologies (DC/DC+DC/AC), improving battery utilization and system efficiency.
Application Scenarios: Power unit of energy storage converters, achieving efficient power conversion and dynamic reactive power compensation.
3BHB030310R0001
Function: As an IGCT drive module in a PCS, it supports high-precision power control and integrates fault detection and fast protection.
Features: Adaptable to two-stage PCS topologies (DC/DC+DC/AC), improving battery utilization and system efficiency.
Application Scenarios: Power unit of energy storage converters, achieving efficient power conversion and dynamic reactive power compensation. Differences between PCS6000 and ACS6000 Systems
Dimensions: PCS6000 System vs. ACS6000 System
Core Positioning: Medium-voltage full-power converter, focusing on power conversion and power quality; medium-voltage variable frequency drive system, focusing on high-power motor control.
Application Scenarios: Wind power grid connection, energy storage, STATCOM reactive power compensation, industrial power quality improvement; high-power synchronous motor drives in metallurgy, mining, shipbuilding, petrochemical, etc.
Technical Features: Three-level topology, high efficiency (>98%), modular design, grid code compliance, direct torque control (DTC), multi-motor drive, high-precision torque/speed control.
Component Configuration: Integrated generator/grid converter, DC bus, cooling system, control platform (e.g., AC800PEC), rectifier unit (ARU), inverter unit (INU), capacitor unit (CBU), excitation unit (EXU), water-cooled unit (WCU)
Protection Functions: Dynamic braking, high and low voltage ride-through, harmonic suppression, reactive power compensation, overload/short circuit protection, undervoltage protection, magnetic saturation protection, fast fault isolation
Key Differences Summary
System Positioning: The ACS6000 is a medium-voltage frequency converter, focusing on motor drive; the PCS6000 is a power conversion system, focusing on energy storage and grid interaction.
Functional Emphasis: The ACS6000 module emphasizes precise control of power devices and motor protection; the PCS6000 module emphasizes bidirectional power conversion, grid connection control, and energy storage system optimization.
Technology Compatibility: The ACS6000 mostly uses an IGCT/IGBT three-level topology; the PCS6000 mostly uses a two-level topology, adapting to battery characteristics and grid connection requirements.
Synergistic Effects and System Value
PCS6000: Through high-precision power conversion and grid interaction capabilities, it enables efficient grid connection of renewable energy, energy management of energy storage systems, and optimization of power quality in industrial grids, supporting dynamic reactive power compensation, harmonic suppression, and fault ride-through.
ACS6000: Through direct torque control and multi-motor drive capabilities, it achieves high-precision speed/torque control of high-power synchronous motors, suitable for heavy industrial scenarios (such as steel rolling and mining hoists), improving production efficiency and equipment reliability.
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