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Regenerative Grid Simulators Support Real-World Testing

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October 15, 2020 - Vista, California - Axiom Test Equipment, an electronic test equipment rental and sales company has published a new blog post entitled "Regenerative Grid Simulators Support Real-World Testing." Prior to reading the article, I had never given any though to how being connected to a power grid which is fed by a large number of independent solar panels, wind turbines, and hot air from politicians might affect the quality of electricity at my wall outlet. When multiple sources are combined onto a common line, inevitably there will be unique artifacts (noise spikes, harmonics, phase shifts, distortion, etc.) from each source that affects the supplied voltage and current waveforms, even with attempts to synchronize everything. Technically you are receiving a 60 Hz (or 50 Hz) alternating voltage source, but its makeup can be significantly different from an otherwise pure sinewave. This might thwart the efforts of Time Error Correction schemes implemented by electric utility grid operators to assure a long-term frequency stability required by synchronous motors in timekeeping devices (e.g., older wall clocks and clock-radios). This blog post addresses these issues, and also includes information about testing electricity generation systems that are capable of pumping power back into the distribution grid.

Here is an interesting article posted on the IEEE Spectrum magazine website entitled, "Planned U.S. Power System Experiment Means Some Clocks Will Speed Up."

Regenerative Grid Simulators Support Real-World Testing

October 15, 2020

Electricity powers most lives and the electronic products within those lives. Electronic devices provide communications and many other conveniences, while electric vehicles (EVs) and hybrid electric vehicles (HEVs) are providing mobility to a growing number of drivers and passengers. Electronic devices draw power from the power grid surrounding them, supplied by utilities and regenerative sources such as wind turbines and photovoltaic (PV) solar panels. While electronic products are designed and developed with the help of traditional test equipment such as oscilloscopes, a different type of test instrument is needed for grid-connected device testing: the regenerative grid simulator. Such a tester makes it possible to know how a device under test (DUT) will perform under changing, real-world conditions when connected to the electric power grid.

Regenerative grid simulators are fundamentally AC power supplies many of which can also provide DC power. They typically operate over wide AC input voltage ranges and provide full four-quadrant control of AC power to emulate the behavior of an electric power grid under different and changing conditions, such as AC power with changing voltage, current, and frequency. The regenerative grid simulator takes the place of the power grid on which a DUT would normally be connected, making it possible to understand how it will perform under different operating conditions and according to different industry standards.

Since some DUTs may regenerate and feed power back into the electric power grid, such as the electrical power storage and charging components within an HEV or EV, a regenerative grid simulator is a power source that can also sink power from a DUT and feed it back to the power grid with high efficiency. This equips the simulator with the capability to serve as a test power source for DUTs that also produce power, such as those with a photovoltaic (PV) inverter or uninterruptible power supply (UPS). With its sourcing and sinking capabilities a regenerative grid simulator can operate and support testing of a DUT across a wide range of electric power grid conditions, even extremely transient conditions. Regenerative grid simulators capable of sufficient AC output voltages over required output frequency ranges are well equipped for performing many tests that are specific to EVs and HEVs, such as vehicle-to-grid (V2G) testing and energy-storage-system (ESS) testing...

 

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Whatever your project requires testing of, rent or buy quality test equipment from Axiom Test Equipment. For over 15 years Axiom Test Equipment has rented, sold, repaired and accepted trade-in of test equipment to support your test & measurement needs. If you would like help selecting any type of test equipment for your next project, contact Axiom Test Equipment's sales department at sales@axiomtest.com, call 760-806-6600, or browse Axiom Test Equipment's inventory online at www.axiomtest.com.

If you would like help selecting any type of test equipment for your project, contact Axiom Test Equipment's sales department at sales@axiomtest.com, call 760-806-6600, or browse Axiom Test Equipment's inventory online at www.axiomtest.com.

 

About Axiom Test Equipment

Josh Shilts Axiom Test Equipment July 2020 - RF CafeGet Exactly What You Need. Rent - Buy - Repair - Trade-In

Established in 2005, Axiom Test Equipment strives to continually improve itself and offer the best value for its customers. We offer our customers several practical, efficient and cost effective solutions for their business or projects' test equipment needs. Whether you need to rent & buy test equipment, repair test equipment, sell or trade equipment, we are committed to providing superior customer service and high quality electronic test equipment.

At Axiom Test Equipment we provide several services. We rent electronic test and measurement equipment. We also sell test equipment. If you have a piece of malfunctioning or broken test equipment we also have an in-house repair lab. For anyone seeking a way to offload their surplus or obsolete equipment, we offer a trade-in program or we can buy the equipment from you.

We stock a comprehensive inventory of equipment and can use our extensive network to find you those hard to get items. We believe in getting equipment to you quickly and at a competitive price.

Contacts

Axiom Test Equipment

2610 Commerce Way 

Vista, CA  92081

Phone: (760) 806-6600

Web: www.axiomtest.com

 

 

Posted October 14, 2020