Distributed Power Access Unit Protocol Converter¹

Product Description Distributed power access unit protocol converter1.Product profileIn recent years, with the continuous integration of distributed photovoltaic systems on residential rooftops, the randomness, intermittency, and decentralization of distributed photovoltaic systems have posed challenges to power grid dispatch and management. To ensure the safe and stable operation of the power grid and accurately grasp the data of photovoltaic power generation, we have launched the "Four Possible" product solution. Power grid dispatch can analyze users' electricity load situation through big data, adjust the output capacity of photovoltaic inverters, and enhance the on-site consumption capacity of new energy.This product is developed using modern digital communication technology, computer software and hardware technology, low-voltage power line carrier technology, etc. The downlink communicates with the inverter through RS485 serial port, and the uplink supports carrier dual-mode communication to upload data to the dispatch platform, achieving the "four capabilities" function for distributed new energy equipment.This product has excellent electromagnetic compatibility performance, a wide temperature adaptability range, and a wide voltage adaptability range. The converter housing is made of ABS flame-retardant material, with a rail type structural design, which is lightweight, easy to install, supports multiple types of interfaces, and is compatible with multiple protocols. It has been tested by a third-party authoritative organization.The four meanings are observable, measurable, adjustable, and controllable.1) Observable: Achieve the acquisition of voltage, current, power, and power generation data for low-voltage user photovoltaic power plants;2) Measurable: Integrating high-frequency collected data, such as user profiles and external meteorological data, to construct user power generation prediction and abnormal operation analysisAnalysis and violation of electricity monitoring model;3) Adjustable: When distributed photovoltaics affect the power quality and safe use of electricity in the substation area, it can adjust the AC active output of the photovoltaic inverterPerform flexible control;4) Controllable: When photovoltaic power generation threatens the safe operation of the power grid, the main station can remotely disconnect to ensure the stability of the power grid.2.Technical indicatorsData classificationData itemData subitemAcquisition frequencyRunning classvoltagePhase a voltageOn demand acquisitionB phase voltageC phase voltageelectric currentA phase currentB phase currentC phase currentactive powerCurrent total active powerwattless powerCurrent total reactive powerPower factorPower factorActive power control ratioActive power control ratioReactive power control ratioReactive power control ratioDC side voltageDC side voltageDC side currentDC side currentState classInverter temperatureInverter temperatureOn demand acquisitionCommunication statusCommunication status between distributed power access unit and inverterInverter operation stateOn-off state of inverterInverter fault statemalfunctionRemote operation and maintenanceRemote operation and maintenanceStatistical classTotal grid-connected operation timeTotal grid-connected operation timeOn demand acquisitionDaily power generationDaily power generationannual energy outputannual energy outputparameterBasic information of inverter/distributed power supply access unitmailing addressOn demand acquisitionuser accountNumber of virtual power plantRated active powerMaximum active powerMaximum reactive powerMaximum apparent powertype of outputcontrol modelActive power control modeOn demand acquisitionReactive power control modePhotovoltaic module data (kWp)Installed capacityuser typeFull/spontaneous surplus, energy storage and charging pileAdjustable and controllableAdjustable and controllableControl classInverter controlInverter switchActive distributionRemote control enableRemote control enableActive distribution on demand (mode 1: group control; mode 2: single control (with address))Data freezingData freezinginitializationinitializationControl modeActive power setting valueActive power percentageReactive power setpointReactive power percentageReactive power percentage regulationPower factor control3.Main parameter test itemgradeexperimental valueTest loopVoltage sag and short-time interruption--3000:1(60%),50:1,1:1complete built unitPower frequency magnetic field immunity--400 A/mcomplete built unitRadiation immunity of radio frequency electromagnetic field310 V/m(80 MHz~1000 MHz)complete built unit430 V/m(1.4 GHz~2 GHz)complete built unitImmunity to conducted disturbance induced by RF field310V (unmodulated)Power supply circuitElectrostatic discharge immunity48kV, direct and indirectshellElectrical fast transient immunity31.0kV (coupling) Communication line44.0 kVPower supply circuitSurge immunity44.0 kV (common mode)Power supply circuit2.0 kV (differential mode)Immunity of damped oscillation wave42.5 kV (common mode)Power supply circuit1.25 kV (differential mode)Radio interference suppressionB-complete built unit4.Product installation and schematic diagram5.About our service           *  We could provide 7* 24-hour phone call after-sales service. *  We provide a 2-year guarantee time and will change the meter for you within 1 year if there's something wrong with the product. Except for natural disasters or man-made reasons.*  Recommend the most advanced application technology and management model in the industry to customers, and provide customers with detailed solutions.6.Package and ship

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