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Power Supply/Electronic Load Unit
Evaluation System
Electric Vehicle Parts
MES
An All-Purpose Evaluation System Replacing Specific-Purpose Systems
The System Can Offer a Solution Best Suited to Your Needs
MES enables the effective use of existing assets such as benches.
A single system can deal with two or more motors having different capacities.
Completing All Motor Measurements Automatically
MES-Complete is a system that can automatically complete all measurements involved in a motor evaluation.
MES-Complete acquires data based on a variety of conditions related to motor performance, such as the torque, rotation speed and advance angle, which all can be set freely. Once the conditions are set, the system automatically generates a map of characteristic data while controlling the motor temperature and monitoring for errors.
MES comes with a user-friendly GUI (Graphical User Interface). You can drive a motor just by entering numeric values as parameters. It is possible to set each parameter in greater detail than ever, allowing you to conduct precise measurements of a motor in its development phase. What's more, MES-Complete offers many different measurement patterns, which helps you streamline the measurement work from various perspectives. All measurement results are output automatically.
Block Diagram of MES-Complete
Easy Measurement with Actual Measurement Values
Inductance measurement is a burdensome task. In the past, a lot of time needed to be spent on the measurement, but MES-Complete reduces the time required for the measurement and displays actual measurement values in graph form.
This leads to increased inverter control performance. Also, with its function to graphically present I-T and N-T characteristics, the system enables you to gain in-depth insight into the features of various types of motors and measure the performance of these individual motors. The benefit you get from this all will far exceed your expectations.
MES-Complete
Configuration Diagram
MES-Complete is suitable for evaluating a motor that is under research or development.
- All you need to prepare is a motor to be tested. We will provide the other necessary components.
- The system can automatically acquire the data of the individual measurement items.
For details, see the "Measurement Item" section of the specifications below.
Specifications
| MES-Complete | |||
|---|---|---|---|
| Inverter for Driving the Motor Under Test | ○ | ||
| Load Bench | ○ | ||
| Motor Parameter Measurement | ○ | ||
| Motor Performance Evaluation | ○ | ||
| Motor Type | Permanent magnet synchronous motor (IPM/SPM) and induction motor (IM) | ||
| Position Sensor | Incremental encoder, resolver, and hall IC | ||
| Inverter for Driving the Motor Under Test | Supported Range | Rated Capacity | 1k～320kVA |
| Rated Current | 2.9～470Arms | ||
| Rated Voltage | 40～460Vrms | ||
| Load Bench | Supported Range | Maximum Torque | 1～1500Nm |
| Maximum Rotation Speed | 0, 50～20,000rpm | ||
| Maximum Capacity | 1k～250kW | ||
| Measurement Item | Torque map, efficiency map, N-T characteristics, I-T characteristics, optimum advance angle map, motor parameters (induced voltage constant (Ke) measurement, resistance (R) measurement, inductance (Ld/Lq) measurement) and carrier frequency characteristics | ||
| Operation Mode | Current command, speed command and torque command | ||
| Operation Parameter | DC voltage, carrier frequency and modulation method | ||
MES-Advanced
Configuration Diagram
MES-Advanced can perform a test using a motor and an inverter that are under research or development.
- The motor under test can be driven using the inverter under test. (No adjustment is necessary on your part.)
- You can upgrade to MES-Complete.
Specifications
| MES-Advanced | |||
|---|---|---|---|
| Inverter for Driving the Motor Under Test | ー | ||
| Load Bench | ○ | ||
| Motor Parameter Measurement | ー | ||
| Motor Performance Evaluation | ー | ||
| Motor Type | Permanent magnet synchronous motor (IPM/SPM) and induction motor (IM) | ||
| Position Sensor | Incremental encoder, resolver, and hall IC | ||
| Inverter for Driving the Motor Under Test | Supported Range | Rated Capacity | ー |
| Rated Current | ー | ||
| Rated Voltage | ー | ||
| Load Bench | Supported Range | Maximum Torque | 1～1500Nm |
| Maximum Rotation Speed | 0, 50～20,000rpm | ||
| Maximum Capacity | 1k～250kW | ||
| Measurement Item | ー | ||
| Operation Mode | ー | ||
| Operation Parameter | ー | ||
MES-Driver
Configuration Diagram
MES-Driver comes with an inverter tailored to the motor under test.
- MES-Driver can be provided in a way that is best suited to the system.
- This is the most popular product of the MES Series.
Specifications
| MES-Driver | |||
|---|---|---|---|
| Inverter for Driving the Motor Under Test | ○ | ||
| Load Bench | ー | ||
| Motor Parameter Measurement | ー | ||
| Motor Performance Evaluation | ー | ||
| Motor Type | Permanent magnet synchronous motor (IPM/SPM) and induction motor (IM) | ||
| Position Sensor | Incremental encoder, resolver, and hall IC | ||
| Inverter for Driving the Motor Under Test | Supported Range | Rated Capacity | 1k～320kVA |
| Rated Current | 2.9～470Arms | ||
| Rated Voltage | 40～460Vrms | ||
| Load Bench | Supported Range | Maximum Torque | ー |
| Maximum Rotation Speed | ー | ||
| Maximum Capacity | ー | ||
| Measurement Item | ー | ||
| Operation Mode | ー | ||
| Operation Parameter | ー | ||
From Small Capacity to Large Capacity
MES supports a wide range of measurements from those involving a capacity as small as 1 kW to those that require a large capacity exceeding 200 kW. Today, the system is used in diverse fields including the development of electric vehicles (EVs) and hybrid electric vehicles (HEVs) as well as electronic manufacturers and academic institutions.
Low to High Rotation Speeds
The rotation speed is a vital factor in motor evaluation. MES can measure rotation speeds of up to 20,000 rpm. The system is capable of meeting the specific needs of your development environment.
