{"id":4127,"date":"2025-01-04T17:25:39","date_gmt":"2025-01-04T09:25:39","guid":{"rendered":"https:\/\/www.wbyq.cn\/product\/4127.html"},"modified":"2025-03-03T15:49:57","modified_gmt":"2025-03-03T07:49:57","slug":"it7900%e7%b3%bb%e5%88%97%e5%9b%9e%e9%a6%88%e5%bc%8f%e7%94%b5%e7%bd%91%e6%a8%a1%e6%8b%9f%e5%99%a8","status":"publish","type":"product","link":"https:\/\/ad.wbyq.cn\/en\/product\/4127.html","title":{"rendered":"IT7900 Series Feedback Grid Simulator"},"content":{"rendered":"
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Product Features<\/h2>\n
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Highlighted Features<\/h2>\n

\u2666 Silicon Carbide (SiC) technology adoption<\/p>\n

High power density design, 3U up to 15kVA, 1U\/2U up to 6kVA<\/p>\n

16Hz~150Hz<\/p>\n

\u2666 Can be used as an energy-fed grid simulator with a full four-quadrant AC\/DC source.
\nFull four-quadrant power amplifiers, especially suited for power hardware-in-the-loop (PHiL) testing
\nProfessional islanding test mode, support R,L,C and active, reactive power setting *3
\nConstant voltage, constant current, constant power three working modes
\nAC\/DC\/AC+DC\/DC+AC four output modes can be realized
\n\u2666 Flexible working modes: single-phase, three-phase, inverted-phase, multi-channel*1
\nProgrammable output impedance to simulate power line impedance
\n\u2666 Satisfy the testing of low voltage ride-through, phase jumps, frequency variations, harmonic injection and other grid-connection regulations.
\n\u2666 Meet IEC61000-4-11\/4-13\/4-14\/4-28 regulatory waveform tests.
\nCurrent source mode<\/p>\n

Features<\/h2>\n

Voltage Specifications: 350\/700\/1050 VL-N *5
\nMaster-slave flow equalization, parallel up to 960kVA without performance degradation
\n\u2666 Touch screen design, built-in single\/three-phase AC power meter and digital oscillator function
\n\u2666 High speed and high precision, current accuracy up to 0.1%+0.2%FS
\n\u2666 Voltage output waveforms: sine, triangle, square, sawtooth, trapezoid, clip-sine, THD, customized waveforms
\nHarmonic\/interharmonic waveform synthesis
\nLIST\/SWEEP\/Surge&Sag modes to simulate real grid disturbances
\n\u2666 Up to 50th harmonic simulation and analysis function, built-in test regulations such as IEC61000-3-2\/3-12 *2
\nPhase angle can be set
\n\u2666 Front USB interface, support import and export of data and waveforms
\nProvide rich trigger configurations to synchronously capture the voltage waveform of the object to be measured and realize the data acquisition and simulation functions
\n\u2666 With Relay Ctrl relay control output function, which can realize the electrical isolation between the object to be measured and the grid simulator.
\nMulti-phase function, realizing 6-phase, 12-phase power output
\nFrequency-locked and phase-locked functions for complex applications with high voltages up to 1400 Vrms.
\n\u2666 Built-in USB\/CAN\/LXI compliant L AN int erface\/Digital IO, optional GPIB\/RS232 & Analog
\nSupport CANopen*4, Modbus, LXI, SCPI and other communication protocols.
\n*1 <6kVA models do not support multi-channel functionality, single phase only.
\n*2 Voltage\/current harmonic analysis, voltage harmonic simulation
\n*3 This feature is not supported in multi-channel mode
\n*4 forthcoming
\n*5 See IT7900 High Voltage Series for details
\n*6 U suffix for single phase models<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Product Features and Benefits<\/h2>\n
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\"202107261558415841-1\"<\/p>\n

Feedback, full four-quadrant grid simulator<\/h2>\n

IT7900 series represents a new generation of programmable, full four-quadrant grid simulator, with 100% rated current source and sink capabilities, and provide energy return function. To be tested in the test of the energy generated by the IT7900 equipment can be completely recovered by the plant after direct utilization, rather than in the form of thermal energy consumption, to provide users with \"green energy-saving\" solutions. It is suitable for testing grid-connected products that inject energy into the grid, such as grid-connected\/off-grid photovoltaic inverters for frequency changes, voltage transients and DC injection.<\/p>\n

\"2021072616000606\"<\/p>\n

Full four-quadrant power amplifier<\/h2>\n

The IT7900 series of feed-back grid simulators can also be used as power amplifiers to complete power hardware-in-the-loop (PHIL) simulation tests in the fields of microgrids, energy storage and new energy vehicles. Digital or modeled analog signals are input through an external analog interface (optional) and can be converted to real power waveforms with distortion-free amplification and an external analog response time of less than 100us.<\/p>\n

\"20210726160138138\"<\/p>\n

Specialized islanding test mode to meet anti-islanding effect test<\/h2>\n

Anti-islanding protection is one of the essential test items for grid-connected inverters, and the IT7900 series has a built-in anti-islanding protection test function, which allows testers to set the active power of resistor R, the reactive power of inductor Q and capacitor C, or set the resistor R, inductor Q, and capacitor C to simulate the inter-network resonance, and to test the anti-islanding protection function of the grid-connected inverters. The IT7900 islanding test mode can simplify the test process, improve the test efficiency, and complete the testing of the anti-islanding protection function in the R&D test and factory inspection of grid-connected inverters.<\/p>\n

\"20210726160218218\"<\/p>\n

Master-slave parallel connection with power range up to 960 kVA<\/h2>\n

When users have higher power requirements, they can use the master-slave parallel function of the IT7900 series to increase the output current and power capacity.The IT7900 series can be paralleled up to 960kVA, and can be easily paralleled without dismantling or installing cabinets.The IT7900 series has the master-slave paralleling function of equalizing the currents, and has its own synchronous ON\/OFF input and output signals, which ensures the synchronicity of the parallel operation. After the parallel not only retain all the functions, and there will not be any loss of accuracy. It makes the construction of power supply system faster, more flexible and more economical, whether it is a stand-alone test or system construction, it can be easily satisfied.<\/p>\n

\"20210726160325325\"<\/p>\n

Touch screen design with built-in oscilloscope function<\/h2>\n

The IT7900 series is equipped with a new touch screen design, a simple and intuitive UI interface, and a keyboard knob design that allows users to perform operations such as mode setting and waveform editing directly and quickly. The built-in digital oscilloscope function acquires time domain signals of voltage and current, phase relationship and performs waveform triggering and other functions. The oscilloscope sampling rate is up to 10us, and up to 6 oscillographic curves can be displayed at the same time, allowing users to perform instantaneous analysis without an oscilloscope and save it in time.<\/p>\n

\"20210726160431431-1\"<\/p>\n

Built-in rich waveform library<\/h2>\n

In addition to the basic sine wave, the IT7900 series offers a variety of built-in AC waveforms such as triangle, sawtooth, square, trapezoidal, and clipped waveforms. The user can recall and display the selected waveforms on the LCD screen through the menu. Combined with the device's sequence programming function, the continuous output of different waveforms can be combined to cope with complex power electronic perturbation tests.<\/p>\n

\"2021072616050555-1\"<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

The IT7900 series represents a new generation of programmable, full four-quadrant grid simulators that can also be used as four-quadrant power amplifiers for testing all types of grid-connected products. The IT7900 series represents a new generation of programmable, full four-quadrant grid simulators that can also be used as four-quadrant power amplifiers for testing a wide range of grid-connected products, such as PCS, energy storage systems, microgrids, BOBC (V2X), and power-related hardware loop simulations (PHiL). With Silicon Carbide (SiC) technology, the IT7900 series provides professional islanding test modes, allowing users to set R,L,C and active and reactive power parameters to simulate non-linear loads on the grid, and to realize certification tests for anti-islanding protection.The IT7900 series is equipped with an energy recovery function, providing 100% current absorption capacity, which is fed back to the grid through the device, saving power consumption and heat dissipation costs.
\nThe IT7900 series of feed-back grid simulator adopts high power density design, the power can reach 6kVA in 1U volume, 15kVA in 3U volume, and can be easily extended to 960kVA through master-slave parallel operation, rich operation modes to meet the user's needs for single-phase, three-phase, inverted-phase and multi-channel testing, and inverted-phase voltage can be extended to 200% rated voltage. voltage in inverted mode. Powerful arbitrary waveform editing function can simulate all kinds of grid disturbance waveforms, which is ideal for testing and R&D labs.<\/p>","protected":false},"featured_media":4099,"comment_status":"open","ping_status":"closed","template":"","meta":{"themepark_post_bcolor":"#f5f5f5","themepark_post_width":"1022px","themepark_post_img":"","themepark_post_img_po":"left","themepark_post_img_re":false,"themepark_post_img_cover":false,"themepark_post_img_fixed":false,"themepark_post_hide_title":false,"themepark_post_main_b":"","themepark_post_main_p":100,"themepark_paddingblock":false},"product_brand":[3531],"product_cat":[1886,52],"product_tag":[1890,1891],"class_list":{"0":"post-4127","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-itech","7":"product_cat-ac-power-supply","8":"product_cat-tydzcs","9":"product_tag-1890","10":"product_tag-1891","12":"first","13":"instock","14":"shipping-taxable","15":"purchasable","16":"product-type-variable"},"_links":{"self":[{"href":"https:\/\/ad.wbyq.cn\/en\/wp-json\/wp\/v2\/product\/4127","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ad.wbyq.cn\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/ad.wbyq.cn\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/ad.wbyq.cn\/en\/wp-json\/wp\/v2\/comments?post=4127"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ad.wbyq.cn\/en\/wp-json\/wp\/v2\/media\/4099"}],"wp:attachment":[{"href":"https:\/\/ad.wbyq.cn\/en\/wp-json\/wp\/v2\/media?parent=4127"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/ad.wbyq.cn\/en\/wp-json\/wp\/v2\/product_brand?post=4127"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/ad.wbyq.cn\/en\/wp-json\/wp\/v2\/product_cat?post=4127"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/ad.wbyq.cn\/en\/wp-json\/wp\/v2\/product_tag?post=4127"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}