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PCS

WD4

Hitachi Energy · Liquid cooled

6 MVA bidirectional power conversion system rated at 1550V DC with three independent DC inputs and liquid cooling in an IP65 enclosure. Available in three AC voltage variants (690V, 710V, 730V), designed for utility-scale BESS and DC-coupled hybrid systems with grid-forming capability and operation up to 4,000 m altitude.

5,688 kVA
額定功率
98.82%
最高效率
1,550V
最高直流電壓
IP65
IP 防護等級
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規格

AC Output
Nominal AC Voltage 690 / 710 / 730 VAC
Rated AC Power @35°C 5,376 / 5,534 / 5,688 kW/kVA
Rated AC Power @50°C 4,839 / 4,981 / 5,118 kW/kVA
Max Output Current @35°C 3 x 1,500 A
Total Current Demand Distortion (TDD) <3%
Power Factor Adjustable
DC Input
SoC Voltage Range @Full Power 987–1,500 / 1,015–1,500 / 1,044–1,500 Vdc
Max DC Voltage 1,550 Vdc
Max Input Current 3 x 2,000 A
Number of Separate DC Inputs 3
Withstand Current (without internal fuse) 250 kA max available fault current
Withstand Current (with internal fuse) 250 kA max available fault current
Efficiency
Max / Euro / CEC (V690) 98.80% / 98.40% / 98.41%
Max / Euro / CEC (V710) 98.82% / 98.44% / 98.44%
Max / Euro / CEC (V730) 98.82% / 98.46% / 98.46%
Protections
AC Protection & Disconnect AC circuit breaker
DC Protection & Disconnect DC load break switch
AC & DC Overvoltage Class II / Type 2 (optional Class I + II / Type 1)
Ground-Fault Monitoring Yes
Insulation Monitoring Yes
DC Input Fuse Protection Optional
Cabinet
Dimensions (W x D x H) 6,977 x 1,100 x 2,535 mm
Weight ~8 t
Cooling Liquid cooling system
Environment
IP Rating IP65
Operating Temperature −25°C to +55°C (derating below −15°C and above 35°C)
Max Relative Humidity 100%
Max Altitude 4,000 m (derating above 1,000 m)
Storage Temperature (coolant filled) −15°C to +65°C
Storage Temperature (without coolant) −25°C to +65°C
Storage Humidity 5% to 85%

主要特點

  • Bidirectional converter optimized for BESS and DC-coupled hybrid integration into complex grids
  • Grid-forming capable with synthetic inertia, system strength support, and black start functionality
  • Three independent DC inputs for flexible battery string sizing on large-scale projects
  • 98.82% peak conversion efficiency across the voltage range
  • Rated for operation up to 4,000 m altitude with corrosion-resistant coated internals
  • Liquid cooling with dust ingress protection and IP65-sealed power electronics
  • Compatible with leading battery manufacturers via PPC-to-BMS integration
產品認證
IEC 62477 IEC 62109-1 IEC 62109-2
環境合規
IEC 61000-3-4 IEC 61000-3-11 IEC 61000-3-12 IEC 61000-6-4 CE Marking
關於製造商
Hitachi Energy
Zurich, Switzerland · Founded 2020

Hitachi Energy Ltd., established in 2020 as a joint venture between Hitachi and ABB and headquartered in Zurich, Switzerland, is a global power technology company with over 30 years of experience in battery energy storage. The company has delivered more than 10 GW of BESS powe...

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WD4 Datasheet
Hitachi Energy · PDF
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