Sparks Electrical News July 2021

CONTRACTORS’ CORNER

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Playing an important role in steadying the power supply and enhancing power quality R egenerative energy such as solar and wind power often have unstable and intermittent power supply problems that affect the power

capacitive type load and phase lag mode under a inductive type load. The Chroma 17020 and 17040 series Battery Pack tester can set battery capacity and behavior curve and simulate all kinds of battery pack conditions. Chroma recently launched the new 62000D series bidirectional dc power supplies, two quadrant design that allow power from the DUT to be converted back to the utility grid. The 62000D can provide both power source and load characteristics to simulate the battery’s charge/discharge behaviour, so eliminating the risks and inconveniences of using a real battery. Along with the diverse developments and applica- tions of energy storage technology, various countries have implemented regulations on these technolo- gies, such as GB/T 34120, GB/T 34133, IEC62933, and SGSF-04-2012-07, to encourage a sound and sustainable development of the energy storage in- dustry. Chroma combined our vast experience in the PV industry with the international relevant regulatory requirements and compiled a comprehensive over- view of these standards’ goals and methods in our Power Conversion System (PCS) Test Guide. The guide contains tests on PCS performance, PCS in- put and output characteristics, PCS protection char- acteristics, and PV characteristics test, and provides customers with test references on product verifica- tion. Download the PCS Test Guide now for free! www.chromaate.com/en/questionnaire_info_32 This PCS Test Guide offers descriptions of over 20 test items: • PCS Performance Tests: Charge/discharge transfer time, active grid mode and islanded mode switch. • PCS Input and Output Characteristics Test: Rectification charging efficiency, PCS efficiency in grid mode, and PCS efficiency in islanded mode. • PCS Protection Characteristics Test: Overload in grid mode, overload in islanded mode… • Photovoltaic (PV) Characteristics Test: MPPT efficiency andPV conversion efficiency. Driving innovation to success Founded in 1984, Chroma is a world leading sup- plier in Automatic Testing Equipment (ATE), includ- ing electronic tests and measurement equipment and systems, for various ICT industries. Chroma also provides integrated and customized turnkey solu- tions through Test and Measurement Instruments, Automatic Test Systems and Manufacturing Execu- tion Systems. The focal points of Chroma are tests and meas- urements on power electronics, passive component, electrical safety, video and colour, LCD/LCM, auto- motive electronics, and semiconductor industries. More importantly, Chroma also drives itself toward clean technology by providing turnkey test solutions in photovoltaic, advanced battery and storage, LED, electric vehicles, electronic paper and other ongoing new eco-driving industries. Turnkey solutions: To fulfil the need of complete test solutions from the market, Chroma not only provides test & measurement instruments, but also integrates with automated systems and manufactur- ing execution systems as a turnkey solution, which brings more value and service to the customers and helps customers in terms of time saving, cost saving, and one-stop full service. A history of innovation: Consisting of a large per- centage of R&D engineers, Chroma puts large in- vestment in research and development each year to ensure its leading technology. Core technologies in power electronics and optics have been the corner- stones for Chroma to drive forward to various new frontiers to provide innovative test solutions with precision, reliability, and uniqueness. Chroma has branch offices in Europe, the United States, Japan, Korea, China, and Southeast Asia chartered to deliver innovative technologies with high value-added service to satisfy our global cus- tomers' demands.

power conversion systems (PCSs) are equipped with on-grid constant current output and off-grid current voltage modes, as well as charge/discharge transfer and other features. This makes testing a PCS even more complicated and requiring even more instru- ments to fit its many features. Chroma ATE Inc. offers the 61800 series Grid Simulators with optional ac load function: multifunctional devices that cannot only simulate various output voltages and frequencies applicable to PCS on-grid function testing, but can also execute four quadrant ac load operation and simulate current phase lead mode under a

grid stability. An energy storage system (ESS) can reduce the impact of regenerative energy in grid connection, offer stable power grid operation, and can also adjust the peak load to maintain the power supply balance, so giving the user various applica- tions and benefits. The ESS is an important part in developing smart grid and micro-grid, which can be used to balance the power load, steady the power supply, and en- hance the power quality. Different from PV inverters,

Chroma PCS ATS

Enquiries: www.chromaeu.com

SPARKS ELECTRICAL NEWS

JULY 2021