ESS PCS-250-T Power Conversion System Isolated Energy Storage Converter

A Power Conversion System (PCS) is the central power electronics component designed for efficient energy form conversion and control. Its primary functions include:

• Bidirectional Energy Conversion: Seamless DC-AC and AC-DC transformation (e.g., battery storage-grid interaction)

• Dynamic Regulation: Real-time control of voltage, frequency, power factor (compliant with IEEE 1547)

• System Integration: Intelligent interface among renewables, storage, and grid

2. Technical Architecture

2.1 Core Subsystems

2.2 Performance Metrics

• Efficiency: 97-99% (CEC weighted)

• THD: <3% at full load

• Response Speed:

  • Step load response: <10ms (0-100%)

  • Frequency regulation: ±0.5Hz (grid mode)

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3. Applications

3.1 Renewable Integration

• PV/Wind Smoothing: Mitigates ±15%/min power fluctuations (IEC 61400-21)

• Virtual Synchronous Generator (VSG): Provides inertia emulation (damping ratio: 0.5-2.5 adjustable)

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3.2 Energy Storage Systems

• Battery Management:

  • CC/CV transition accuracy: ±0.5%

  • SOC estimation error: <2% (Kalman filter)

• Grid Services:

  • Primary frequency response: <2s activation (PJM requirements)

  • VAR support: ±0.95 power factor range

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3.3 Industrial & Specialty

• Microgrids: Black start capability (0.2C discharge rate)

• EV Fast Charging:

  • 350kW liquid-cooled architecture

  • 95% efficiency @30-100% load

• Marine Power:

  • DNV-GL certified

  • <5% THD (IEEE 519-2014)

Sichuan Roncy Technology Co, Ltd.

is an enterprise integrating R&D, production, sales and service of lithium battery protection boards and Mini UPS battery pack. With a professional engineering team, we can design and customize according to customer needs. Adhering to the business philosophy of "focusing on professionalism, being pragmatic and enterprising", and adhering to the principle of "quality first, integrity first, and customer first", we provide our customers with high-quality services. Currently HKIVI brand are well known among 50 countries.

Advantages: Roncy is high-tech enterprise engaged in the research and development, production, sales and service of various lithium battery; it has passed the GB/ISO9001:2016/ISO9001:2015 quality management system certification, GB/T 45001:2020/ISO 45001:2018 occupational health and safety management system certification, GB/T 24001:2016/ISO 14001:2015 environmental management system certification; R & D and management team with more than 10 years of working experience in the field of lithium battery, and fully automatic production lines and testing lines; products include 1-33 series lithium battery protection boards, software control boards,DC Mini UPS mainly used in mobile electronic products, electric scooters, large electric motorcycles, energy storage and other fields.