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Power Conversion Systems & Hybrid Inverters
Power Conversion Systems & Hybrid Inverters
A power conversion system (PCS) is the power-electronics layer that converts stored DC energy in a battery to grid-compatible AC power, and back again during charging. Paired with hybrid inverters that also manage solar PV input, the PCS is the component that determines how fast, how efficiently, and how safely a battery energy storage system can respond to grid events, load changes, and solar variability.
The Industry Challenge
PCS and inverter selection is frequently treated as a commodity purchasing decision, when in practice it determines round-trip efficiency, response time, grid-code compliance, and long-term reliability of the entire energy system. Poor PCS integration is one of the most common causes of underperforming BESS and solar-plus-storage installations in India.
The ATC GridWorks Approach
ATC GridWorks selects and integrates PCS and hybrid inverter technology from vetted OEM partners, engineered specifically to the customer's grid-interconnection requirements, load profile, and solar configuration - then owns responsibility for its performance as part of the full BESS or solar-plus-storage system, not as an isolated component sale.
Technical Overview
| Attribute |
Specification Range |
| Topology |
Central hybrid inverter (large-scale, centralized) or string hybrid inverter (distributed, modular) |
| Efficiency |
97%+ conversion efficiency (representative - confirm per model) |
| Grid compliance |
IEC 62109, IEC 61727, and applicable Indian grid-code requirements |
| Communication |
Modbus/CAN integration with EMS and SCADA |
Benefits
- Higher round-trip system efficiency through correctly matched PCS sizing
- Grid-code compliant interconnection, reducing commissioning delay and DISCOM approval risk
- Seamless integration between solar generation and battery dispatch
- Remote firmware management and diagnostics through ATC GridWorks' digital platform
FAQs
A central hybrid inverter handles power conversion for an entire site from a single, large unit, typically suited to utility-scale or large industrial sites; a string hybrid inverter distributes conversion across multiple smaller units tied to individual solar strings or battery groups, offering more granular monitoring and fault isolation, typically suited to commercial and mid-size industrial sites.
The PCS determines the system's actual round-trip efficiency, response time to grid events, and compliance with grid-interconnection codes - two systems with identical batteries can perform very differently depending on PCS engineering and integration quality.
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