Applications
Case Study; FeRAM in PV Inverter
Dramatically reduces PV inverter downtime：
FeRAM's high-speed write enables current and voltage logging in millisecond
PV inverters require high reliability, ease of maintenance, and long system life, and the world's leading PV inverter manufacturer has achieved high reliability and ease of maintenance by using FeRAM (ferroelectric memory), which is highly evaluated by the market.
Table of Contents
Use of FeRAM in PV Inverters
As the global movement to reduce CO2 emissions increases the importance of renewable energies, especially solar power, PV inverters or power conditioners form the correct current and voltage waveforms for the power generated by solar panels to be fed into the power grid. The connection to the power grid infrastructure requires high reliability, ease of maintenance, and long system life, which is where the excellent properties of FeRAM (Ferroelectric Memory) come in handy.
FeRAM Features and Benefits
FeRAM is a memory technology with high write speed and high write endurance. Therefore, it offers the following advantages in PV inverters.
High-speed data recording:
PV inverters need to cope with unforeseen events such as unexpected system voltage drops. By rapidly storing current, voltage, system status, etc. in FeRAM before the system voltage is completely lost, the system can be restarted correctly and the cause of the problem can be traced. Early system restart helps minimize downtime and increase power generation, while identifying the cause of the problem facilitates PV inverter maintenance.
High write endurance ::
PV inverters require constant logging of current, voltage, and system status to determine what events occurred before an unexpected drop in system voltage. This is possible over the entire long life of the system.
Data retention:
Data is not lost even in the event of power loss, allowing safe operation to resume immediately after power is restored.
Case study
A leading global manufacturer of energy storage and renewable energy equipment such as PV inverters and wind power generation equipment, and an advanced environmental conservation company, has adopted FeRAM for its PV inverters.
The customer required logging of current and voltage data every second to ensure analysis of the cause in the event of a failure from the end user. As a memory to store the logging, conventional nonvolatile memory such as EEPROM and FLASH memory had problems to keep operating over a long operating period of the customer's product. Therefore, we have succeeded in developing a product that satisfies the end-user's requirements by reliably storing log data over the long operational period of the customer's product by adopting FeRAM, which has a high speed write capability, high write endurance, and a proven track record in the market.
Clients are further increasing the number of end-users with FeRAM-based products, ensuring their reputation and performance in the market.
Summary
In PV inverters, FeRAM offers high reliability, ease of maintenance, and long system life due to its fast write speed, high write endurance, and excellent data retention.