Overview
Description
Renesas' Air Conditioner Outdoor Unit (ODU) reference design is a total solution for controlling outdoor air conditioning units. It is used in combination with the MCI-HV-AC which is AC200V high-voltage inverter board, communication board, and peripheral devices. It is capable of evaluating and developing dual motor control with the provided permanent magnet (PM) sensorless vector control sample code.
Features
- Reference design integrating the RX26T microcontroller and a 3-phase inverter circuit
- Dual motor control function (compressor and fan)
- Open-loop start (current pull-in control) during stop and low-speed operation
- PM sensorless vector control using induced voltage observer during medium to high-speed operation (1-shunt and 3-shunt)
- Flux weakening control for high-speed operation and maximum torque per ampere (MTPA) control for IPMSM
- Torque vibration suppression function, step-out detection, and flying start (catching control)
- Single-phase and interleaved PFC control (power factor correction and boost function)
- MCI-HV-AC inverter board features
- Supports single-phase AC input (AC100V ~ 240V, 50Hz/60Hz)
- Supports 2-motor (compressor, fan) control
- Equipped with overcurrent detection, overvoltage protection, and overheat detection functions
- Equipped with a four-way valve and expansion valve control interface
- Equipped with temperature control sensor interface
- Equipped with air conditioner indoor unit communication interface
Applications
Documentation
Featured Documentation
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| Type | Title | Date |
| PCB Design Files | Air Conditioner Outdoor Unit Design Files
The AIR-CON-ODU-REF design files include schematics, BOM lists, Gerber data for board layout, mechanical data for enclosures and heat sinks, and other materials that provide detailed information about the board design.
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| Manual - Hardware |
PDF
1.39 MB
日本語
AIR-CON-ODU-REF evaluation kit has control interfaces such as four-way valves and expansion valves, as well as communication interfaces. By combining it with a communication board and peripheral devices, it is possible to control the functions of air conditioner outdoor units. This manual provides essential information for using the board, including board specifications and jumper settings, as well as details necessary for software design, such as the functions of each feature.
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| Application Note | Dual Motor Control with Interleaved PFC for Air Conditioner Outdoor Unit Reference Design
AI-generated Summary:
The document details dual motor control algorithms combined with interleaved power factor correction (PFC) for air conditioner outdoor units using Renesas RX26T MCUs. It covers sensorless vector control for permanent magnet motors, including open-loop startup, BEMF observer-based control, flux weakening, and maximum torque per ampere (MTPA) control. The design integrates two 3-phase inverters for compressor and fan motors, with advanced features like torque vibration suppression, stall detection, and flying start. It also explains hardware setup, software configuration, motor operation, and PFC control algorithms, providing comprehensive guidance for inverter development and evaluation.
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3 items
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Design & Development
Software & Tools
Software & Tools
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Software type
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Company
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| Renesas Motor Workbench Renesas Motor Workbench is a development support tool for debugging, analyzing, and tuning motor control programs.
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Solution Toolkit | Renesas |
| e² studio Eclipse-based Renesas integrated development environment (IDE).
[Support MCU/MPU: RA, RE, RX, RL78, RH850, Renesas Synergy, RZ]
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IDE and Coding Tool | Renesas |
| CS+ Renesas integrated development environment (IDE) [Support MCU/MPU: RH850, V850, RX, RL78, 78K0R, 78K0]
(Note: CS+ is not generally promoted to U.S. and European customers.)
(Note: To use Smart Configurator on CS+ for RL78/G23 and RX family MCUs, install the Smart Configurator for each MCU family separately downloading from ”Design & Support” > ”Development Tools” > ”Smart Configurator”)
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IDE and Coding Tool | Renesas |
| RX Smart Configurator RX Smart Configurator is a utility for combining software in ways that meet your needs. It simplifies the embedding of Renesas drivers in your systems through supports for importing middleware and drivers and configuring pins.
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Solution Toolkit | Renesas |
4 items
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Sample Code
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