This section provides an overview for power conditioners as well as their applications and principles. Also, please take a look at the list of 8 power conditioner manufacturers and their company rankings.
Table of Contents
A power conditioner is an inverter that converts the power generated by solar panels into commercial AC power. A power conditioner is also responsible for system control of solar power generation.
It has the following functions for system control:
The latter function prevents the occurrence of spillover accidents to the power company in the event of trouble. The performance rating of a power conditioner is indicated by its conversion efficiency. The higher the conversion efficiency, the more expensive it is, generally around 95%.
Power conditioners are used in solar power generation. Power conditioners are used in most solar panel installations, whether industrial or private roof-mounted.
Power conditioners are also responsible for controlling the grid connection and disconnection. When used in conjunction with batteries, power conditioners can be used as emergency power sources that can operate independently in the event of a disaster or power failure.
Generally, electric power companies transmit AC power. Since photovoltaic power is a DC power source, it must be converted from DC to AC power by power conditioners.
Power conditioners consist of a DC/DC circuit, a DC/AC circuit, and an interrupting circuit.
After being converted to AC power according to the above principle, the power is sent to the distribution board and is ready for use.
The amount of power generated by a photovoltaic power generation system varies depending on the weather and hours of sunlight. The power conditioners adjust the system to maximize the use of solar power by controlling the optimal current and voltage.
The lifespan of power conditioners varies depending on the installation environment and other factors, but is generally 10 to 15 years. Solar panels have a life span of about 20 to 30 years. Power conditioners have shorter lifespan than solar panels.
This is due to wear and deterioration of moving parts, such as internal cooling fan motors. Solar panels, on the other hand, generate electricity using semiconductors and have no moving parts, so they have a longer life span.
There are three main possible causes of power conditioner failure: poor connection during installation, component deterioration due to aging or heat, and component deterioration due to the external environment.
Poor Connection During Installation
In the case of poor connection during installation, heat is generated due to poor connection at the cable terminals, causing the cable to ground fault or melt down. Thorough installation management is necessary to prevent this from happening.
Component Deterioration Due to Aging and Heat
Component deterioration due to aging and heat is a common cause of failure not only for power conditioners but also for other electrical products. Longer operating hours can cause wear and deterioration of fans and other components, which in turn can cause failure. Maintenance such as periodic cleaning of filters and periodic lubrication can extend the service life of power conditioners.
Component Deterioration Due to External Environment
External environmental factors can cause power conditioner failure, such as wind, rain, animal damage, and insect damage. Examples include short-circuit failure of electrical circuits due to rainwater or dust, and short-circuit or disconnection failure due to the intrusion of small animals. To prevent the above accidents from occurring, it is important to seal the entry paths thoroughly.
*Including some distributors, etc.
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