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Photovoltaic/Solar Array Simulation Solution

Data Sheets

Photovoltaic / Solar Array Simulation Solution

N8937APV, N8957APV Photovoltaic Array Simulators DG8901A Solar Array Simulator Control Software DG9000A Advanced / Multi-Input Photovoltaic Inverter Test Software

Whether your inverter has one or twelve inputs/MPPTs, Keysight's Photovoltaic / Solar Inverter Test Solution can help you go beyond the test standards to maximize performance and bankability.

Maximize the performance of your inverter

If you are designing or manufacturing photovoltaic solar inverters from one to twelve inputs and up to 1500 V per input, Keysight’s Photovoltaic / Solar Inverter Test Solution can help you develop, verify, and maximize the performance and bankability of your inverter. The solution enables you to optimize maximum power point tracking (MPPT) algorithms and circuits. With the DG8900 software you can quickly and easily test individual inputs to the European EN50530 (April 2010) standard to easily compare your results to your competitors.

With the new DG9000A software you can simultaneously control from one to twelve PV simulators enabling you to go beyond the test standards, optimizing your multi-input inverters to beat the competition. The explosive growth in the solar power generation industry has intensified the need for solar inverter test and measurement solutions.

To keep solar power at grid parity with competing methods of power generation, performance and power conversion efficiency are increasingly important. Small increments in power production have a dramatic effect on the profitability of solar power generation.

You need to ensure your solar inverters are capable of converting the maximum power that is available from the solar array. Developing and verifying the performance of inverter MPPT algorithms and circuits is challenging. MPPT algorithms are complex, and under-the-sun testing with a comprehensive set of temperature and irradiance conditions is extremely difficult, expensive, and time consuming, if even possible at all.

As inverters increase in power, the size of the test array would become unmanageable. As they increase in number of inputs on a single inverter, the complexity of test changes exponentially. The only practical test method is to use a laboratory test solution that can simulate from one to many real-world solar array strings.

Quickly create, visualize, and execute photovoltaic/solar I-V curves

Keysight’s PV simulation solution consists of the N8900APV Series PV simulator hardware and two software packages to choose from: the DG8900 SAS control/curve generation software and the DG9000 advance/multi-input PV inverter test software.

The PV simulators are autoranging, programmable DC power sources that simulate the output characteristics of a photovoltaic array under different environmental conditions (temperature, irradiance, age, cell technology, etc.) enabling you to quickly and comprehensively test inverter MPPT algorithms and inverter efficiency. The DG8900 SAS Control software allows the user to control one N8900APV (or one primary/secondary set) output as well as easily create, visualize, and download solar / photovoltaic I-V curves to the instrument using the Curve Workspace. Once a curve has been downloaded to an N8900APV, the user can enable the output and watch as their PV inverter searches for the maximum power point, gaining insight into their MPPT algorithm.

The new DG9000 software has the same features as the DG8900, but allows control from one to twelve N8900APV units, or primary/secondary sets.

Your PV Array Simulator is Also an Autoranging System DC Power Supply

The Keysight Technologies N8937/57APV PV array simulator provides 15 kW autoranging, single-output programmable DC power for ATE applications that require just the right amount of performance at just the right price. The autoranging output characteristic enables unprecedented flexibility by offering a wide range of voltage and current combinations at full power. Power supplies with “rectangular,” or traditional, output characteristics provide full power at only one voltage and current combination. Just one does the job of multiple power supplies. It’s like having many power supplies in one!

The N8937/57APV PV array simulator Series provides stable output power, built-in voltage and current measurements, and autoranging output voltage and current from up to 1500V and up to 30 A. These supplies offer many system-ready features like multiple standard I/O interfaces to simplify and accelerate test-system development and compact 3U design to save rack space. If you need more power, you can easily parallel multiple units to create “one” power supply with up to 90 kW of total output power. The built-in primary/secondary control enables programming as if it’s just one big power supply; no need to program each supply individually.

Device protection

To safeguard your device, the N8937/57APV PV array simulator provides over-temperature, over-current and over-voltage protection to shut down the power supply output when a fault condition occurs.

Simple system connections

The N8937/57APV PV array simulator comes standard with GPIB, Ethernet/LAN, USB 2.0, and analog interfaces giving you the flexibility to use your I/O interface of choice today and safeguard your test setup for the future. There is no need to worry whether or not you are choosing the right interface when they all come standard. The PV array simulators are fully compliant with the LXI Core specification.

Remote access and control

The built-in Web server provides remote access and control of the instrument via a standard browser. This control goes above and beyond the LXI specification, giving you the ability to monitor and control the instrument from anywhere. Using the Web browser, you can set up, monitor and operate the instrument remotely.

AC input

Choose either the N8937APV for 208-VAC input or the N8957APV for 400-VAC input. This gives the PV array simulator the ability to be used anywhere in the world. Choose 208 VAC for regions such as the Americas and Japan or choose 400 VAC for regions such as Europe and Asia.

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