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Battery Test Solutions for Power Grid Frequency Regulation

Chroma Provides Energy Storage Battery Test Solutions for Power Grid Frequency Regulation Systems

The proportion of solar and wind power generation is increasing over conventional systems. However, the power generated by these systems is often affected by weather conditions that can cause stability issues for the grid – especially when large scale changes in demand are encountered in a short period of time. The micro-grid system discussed today uses high capacity battery storage and a power control systems (PCS) to control power smoothing of the output, and to compensate for peak power. Additionally, the power system must monitor the grid frequency changes in real time to avoid hazards due to excessive power changes. The weakness in conventional power systems stem from slow responses in stability adjustments. Using battery storage systems and AGC (automatic generation control) enhances the grid stability and can rapidly respond to frequency and voltage adjustment commands. A major benefit of this method is fast and accurate power compensation abilities that can complete the AGC adjustment commands in less than 1 second or even within microseconds. This service maintains the safe operation of the grid.

In 2011 the United States passed the FERC Order No. 755 that allowed the energy storage systems to charge for AGC frequency regulation. In 2013 FERC Order No. 784 allowed energy storage frequency regulation to be applied to the power market in the US, and in November of the same year FERC Order No. 792 set up a screening process for immediate grid connections. Lately more and more energy companies are dedicating resources for developing large battery modules, and so far the commercial energy storage systems officially released in the US for frequency regulation are up to 100 megawatts. A Japanese company has adopted Chroma’s 17020 Regenerative Battery Pack Test Systems with current specification over 2500A to validate battery module performance, lifecycle and momentary discharge capabilities.

The Chroma Model 17020 is a high precision battery module inspection system equipped with battery discharge energy recovery functions, and its featured low heat production increases the system’s stability and durability. This system is suitable for testing and validating various secondary batteries and super capacitor modules. Some of the applications include energy storage systems, electric bicycles and electric vehicles. The Model 17020 system family is shown below.

The 17020 Family of Regenerative Battery Testers

With 30 years of experience in test and measurement instrumentation, Chroma Systems Solutions is able to provide a wide variety of testing solutions for power and storage batteries. These include Regenerative Battery Pack Test Systems for battery cells, battery modules and battery packs, BMS test systems, Battery Pack Auto Test Systems, battery simulators and super capacitors. These solutions are in use worldwide by manufacturers and third party laboratories. For any questions regarding the inspection system for battery modules (EOL), complete this form and one of our representatives will contact you to help.

For more information about our testing solutions for power supply and battery, please visit

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