SOLARAWARDS2011 SHORTLISTED
Challenge
This addresses the market needs for ever higher photovoltaic inverter efficiency. With lower Vce(sat) and the various optimizations, these parts enable the capability to squeeze that little bit extra out of the inverter.
Problem Solved
The new APT44GA60BD30C and APT44GA60BC1 reduce the 600V designs to 1.5 V Vce(sat) and 1.05V Vce(sat) further increasing efficiency of the inverter. They provide low cost, simple gate driver circuitry.
Noteworthy We are the first and only company to enable 600V inverter designs with three variants of Vce (sat) vs frequency of a device with an optimized range with 2.0 V Vce(sat), 1.5 Vce(sat) and 1.05 V Vce(sat), further increasing the efficiency of the inverter, enabling further increases in overall system efficiency for 600V designs.
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Unlike competitive parts that waste energy by having sub-optimal Vce(sat) vs frequency trade-off the APT44GA60xxxx series trade offs are highly optimized, dissipating less power, requiring a smaller heatsink and increasing energy out. After all, efficiency is- the name of the game.
Innovation We are the first and only company to enable 600V inverter designs with a range of 3 optimized Vce(sat) for different frequency solutions further increasing the efficiency of the inverter, enabling further increases in overall system efficiency for 600V designs, all this with excellent noise and oscillation immunity.
Customer Benefits
In addition to the low Vce(sat)s, customers also get the added benefit of lower cost than the higher voltage competition, Simple gate driver circuitry, Fast switching, Ultra fast recovery Combi diode for either hard switched or zero- voltage-switching (ZVS) topologies, and the aforementioned low Vce (sat)s for lower losses, less generated heat, and hence, more power out instead of lost in the inverter
Solar-Log with Easy Installation
Solar-Log is a complete monitoring system that can work with most inverters available on the market. The system monitors the power production of a PV plant and gathers detailed status information from the inverters through the corresponding inverter protocols.
Usually the configuration of monitoring systems requires IT know-how, since a monitoring system is also an IT product. By means of the inverter-independent Solar-Log system, the installer only has to learn one system to be able to provide a monitoring system for all customers, even those with different inverter installations.
There usually still is, however, inverter specific configuration required on site via laptop. To make the local installation easier and to minimize the effort on site, Solar-Log introduced a so called Easy Installation process. This method makes the installation much easier by doing inverter detection and establishing internet connection to the Solar-Log portal automatically. On site, an installer needs only to connect the data logger to the inverter by data cable and connect the data logger to a router.
Once these basic connections have been established, the data logger configuration starts automatically by identifying all connected inverters. This works even with different manufacturers connected to the Solar-Log. The data logger also establishes the connection to the internet and does an anonymous internet registration. The progress of these steps is indicated by LEDs on the Solar-Log data logger. The installer can then do the final configuration remotely at the office.
Challenge
The advantages of an inverter- independent system are multiple. An installer only needs to learn one product to provide a system for all of his customers, even different inverters.
A monitoring system should be simple enough to be fitted without great effort. Since a monitoring device is an IT product, a certain amount of IT know-how must usually be available. The Solar-Log Easy installation, on the other hand, reduces the installation effort of the monitoring device to a minimum, allowing any PV plant installer to install the monitoring device without much training. Additional installation details can then be configured remotely.
Problem Solved The Solar-Log Easy Installation process performs the main configuration automatically after the logger has been connected to the inverter and to the router. The Solar-Log identifies the connected inverter and uses automatically the correct inverter protocol. By means of DHCP, the Solar-Log establishes the connection to the router and registers to a portal to be able to find the logger for further remote configuration at the office. Every process step in this auto configuration is indicated by LEDs so that an installer can know the status of the process. The successful configuration is indicated by an LED.
Noteworthy We are the only company that offers compatibility to such a huge number of inverters. The Solar-Log implements the various protocols of the inverters in order to provide the highest depth of data. Nevertheless, the installation must be simple enough, regardless of the number of supported inverters.
Solar-Log has therefore introduced the automatic installation of the device which minimizes the installation effort to keep the whole monitoring setup as simple as possible. Basically, the Solar-Log is the logger with the highest data depth, and the logger with one of the simplest installations.
www.solar-pv-management.com Issue VII 2011
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