DC-AC (AC-AC) Inverter Platforms

30kVA_SW_View_2

Creative Power specializes in the development of custom DC to AC and AC to AC inverters for both on-grid and off-grid applications.

In addition Creative Power has developed grid connected bidirectional systems in both single and three phase configurations. These offer the flexibility of bidirectional power flow for applications such as battery chargers or microgrid power supplies.

 

In addition to these available products, Creative Power specializes in the development of custom product solutions to meet specific customer requirements. Utilising Creative Power's extensive "building blocks" of controllers and power stage experience, Creative Power can design and construct custom products. CPT is certain that we can provide you with a solution to your problems.

Creative Power developed a range of underslung mounted Inverter products, in both single and three phase designed for extreme environment operation. These inverters are IP67 rated to handle monsoonal conditions and must be a rugged construction to handle shock, vibration and direct impacts. They were operating from the nominal on-card 110V battery banks to produce either 110V, 230V or 3 phase 415V depending on the carriage.

5kVA Grid Connected 3 Phase Inverter

  • DC Voltage: Operating Range 550 - 750VDC
  • AC Voltage: 400VAC ±15%, 3 Phase 50Hz/60Hz
  • Rated Power: 5kVA @ 1pf
  • Full Power Factor Control (leading and lagging)
  • Efficiency: >97%
  • Fan Forced Cooled
  • Isolated RS485 MODBUS Interface
  • ESTOP on Front Panel (only for Safety Model)
NYV3_5kVA_per

The 5kVA Inverter Module is a grid connected 3 phase inverter for use on microgrids. The Inverter Module interfaces directly to a DC/DC Converter Module, such as the 5 and 15kW Fuel Cell Converters available through Creative Power.

The Inverter has an isolated RS485 MODBUS interface that provides bi-directional real and reactive power flow control. Note this requires a bi-directional DC-DC converter (CPT custom designed).

30kVA 3 Phase Inverter (+ AVR)

  • AC Voltage: Input Range 415 VAC ±15% / 600 VDC (tolerates 1200V peak input)
  • AC Voltage: 400VAC ±15%, 3 Phase 50Hz/60Hz
  • Rated Power: 30kVA @ 1pf
  • Full Power Factor Control (leading and lagging)
  • Efficiency: >97%
  • Fan Forced Cooled
  • Isolated USB Interface
  • Full Data Logging
30kVA_SW_View_2

The 30kVA Inverter Module is a standalone 3 phase inverter for use from alternator supplies. The Inverter Module interfaces directly with an AVR (Automatic Voltage Regulator) front end. This enables the inverter to generate a regulated 400V-50Hz/60Hz from a variable voltage/frequency Alternator output.

-:- Legacy Example - 2.5kVA Bulk Inverter

2.5kVA
  • Input Voltage: 90-140VDC + 15% ripple
  • Output Voltage: 110VAC/230VAC ±5%, 50Hz
  • Rated Power: 2.5kVA @ 0.8pf
  • Efficiency: >92%
  • Galvanically Isolated
  • Naturally Cooled

The 2.5 kVA inverter suited underslung railway coach mounting. The enclosure was IP67 rated and could withstand shock impacts and Monsoonal flooding. 3mm steel enclosures, natural cooling, and a robust, rugged construction formed the exterior of the inverter.

Internally, this inverter range contained a double conversion topology, with galvanic isolation. An input boost stage with a nominal 110 V DC input produced an intermediate DC bus. From this bus a single phase inverter output voltage was generated. This system was available in either 110 V or 230V AC single phase 50 Hz output supply alternatives.

This inverter range was developed in 2008 and manufactured in the thousands by a third party company using CPT's design.

CPT can design and manufacture equivalent products utilising today's technology.

-:- Legacy Example - 25kVA Static Inverter

25kVA
  • Input Voltage: 90-170VDC
  • Output Voltage: 415VAC ±5%, 3 Phase 50Hz
  • Rated Power: 25kVA @ 0.8pf
  • Efficiency: >93%
  • Naturally Cooled
  • Non-isolated

The 25 kVA inverter suited underslung railway coach mounting. The enclosure was IP67 rated and could withstand shock impacts and Monsoonal flooding. 3mm steel enclosures, natural cooling, and a robust, rugged construction formed the exterior of the inverter. Hence the power stage devices were heavily overrated. If the inverter had been fan forced cooled, the power stage would be rated at >100kW.

The Inverter contained a double conversion non-isolated topology, utilising IGBT technology to convert a nominal 110 V DC battery bank supply into a 415 V AC, 3 phase, 50 Hz power supply for air conditioning units and associated loads, such as coach fans and lights, water raising apparatus, evaporator fans, condenser fans, compressors etc., that are installed in conventional coaches in international markets. The system contained earth leakage protection and a remote display located within the driver's cab.

This Model was developed in 2008 for manufacturing by a third party company to CPT's design.

CPT can design and manufacture equivalent products utilising today's technology.