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安科瑞 繆凱倫
摘要:本文介紹了PZ96L和AMC96L在越南光伏逆變器上的應用。目前，電網公司通常要求光伏并網系統為不可逆流發電系統，即光伏并網系統所發的電由本地負荷消耗，即自發自用。在并網發電和儲能系統中，由于外部環境是不斷變化的，為了防止光伏并網系統逆向發電，系統需要進行逆流檢測，通過實時監測配電變壓器低壓出口側的功率信號來調節系統的發電功率，從而達到光伏并網系統的防逆流功能。
??Abstract:This article introduces the application of PZ96L and AMC96L in Vietnam photovoltaic inverters. Right now, grid companies usually require photovoltaic grid-connected systems to be irreversible , that is, the electricity generated by photovoltaic grid-connected systems is consumed by local loads, and excess electricity is not allowed to supply to the grid. The system can regulate power generation in order to prevent the photovoltaic grid-connected system from generating reverse power.
??1. 項目概述 Project overview:
??一家做光伏發電的公司，在確認了我司PZ96L和AMC96L的協議可以跟他們目前使用的太陽能逆變器對接后，選擇購買這兩款表來作為光伏交流部分的電量統計，來確保不會把光伏產生的電流輸送向國網。
??The photovoltaic power generation company in Vietnam, after confirming that our company’s PZ96L and AMC96L protocols can be connected to their current solar inverters, they chose to purchase these two models as the electricity statistics of the photovoltaic AC part to ensure that the electricity generated by photovoltaic will not be sent to the state grid.
??系統拓撲：Structure
??光伏防逆流解決方案：Solution for PV anti-backflow
??光伏直流耦合儲能解決方案 Solution for PV DC coupled energy storage
??光伏交流耦合儲能解決方案 Solution for photovoltaic AC coupled energy storage
??2.相關產品：Product Selection
??防逆流 Anti-reflux
??產品特點：Functions
??雙向計量光伏系統的發電量，計量上網電量和用電量
??250ms數據刷新率
??開口式互感器，支持300A電流。
??通過RS485和并網逆變器或儲能逆變器通訊，實現防逆流功能及充放電的邏輯控制。
??Measure power generation and the use of electricity,
??Data refresh rate: 250ms,
??Split core CT, 300A current,
??Communication: RS485 and grid-connected inverter or energy storage inverter
??證書：Certificate
??AGF-AE-D：
??ACR10R：
??AMC96L
??產品特點：
??PZ系列電能表，采用交流采樣技術，可同時測量三相電網電氣參數，如電流、電壓、功率、電能等直接或間接的。可用于就地顯示，與控制設備連接構成測控系統。配備RS-485通訊口，采用兼容的Modbus-RTU協議，儀表可將電參量信號轉換為標準模擬量輸出，具有四路（兩路）切換輸入/兩路切換輸出。
??PZ Series electric energy meters, adopting AC sampling technology, can measure many three phase grid electrical parameters such as current, voltage, power, electric energy etc. directly or indirectly. It may be used for local display, and connected with the control equipment to form measuring and controlling system. Fitted with RS-485 communication port, adopting compatible Modbus-RTU protocol, meters can switch electric parameter signal into standard analog output, with four-channel (two-channel) switching input / two-channel switching output.
??根據不同的需求，通過面板上的按鍵，可以對變比、報警、通訊等電氣參數進行設置和控制。 PZ系列儀表具有高性價比，可以簡單地替代傳統的電換能器和測量儀表。該電表作為一種*智能化、數字化前端采集元件，廣泛應用于各種控制系統、SCADA系統和能源管理系統
??Based on different requirements, by keys on the faceplate, electric parameters for transformation ratio, alarm, communication etc. can be set up and controlled. PZ series meters have extra high price performance ratio, can simply replace traditional electric transducer and measuring meters .As an advanced intelligent, digital front end acquisition component, this electric meters have widely used in various control system, SCADA system and energy source management system.
??DJSF1352-RN直流計量 DJSF1352-RN DC Energy Meter
??DJSF1352/RN
??產品特點：Functions
??精度1級，帶±12V 電壓輸出用于霍爾傳感器供電
??紅外通訊接口和RS485通訊接口，Modbus-RTU和645規約
??導軌結構，4模體積小巧方便安裝
??支持分流器或霍爾傳感器輸入方式
??Accuracy: 1, voltage output: ±12V
??Communication: infrared and RS485 communication, Modbus-RTU and 645 protocol
??DIN rail installation
??Support hall sensor or shunt input
??3. 集中式光伏解決方案Centralized PV solutions
??應用說明：Application
??在太陽能光伏發電系統中，智能光伏匯流箱減少了太陽能光伏電池陣列與逆變器之間的連線。智能光伏匯流箱可以監測光電池陣列中電池板運行狀態，組串電流，防雷器狀態、直流斷路器狀態。裝置帶有RS485接口可以把測量和采集到的數據和設備狀態上傳。
??In the solar PV power generation system, the smart PV combiner box reduces the connection between the solar PV cell array and the inverter. The box can monitor the operating status of the solar panels, lightning protector and DC circuit breaker. With RS485 interface, the device can upload the measured and collected data and equipment status.
??系統拓撲：Structure
??4. 相關產品：Product Selection
??1.AGF系列匯流采集裝置 AGF Series Confluence Acquisition Device
??產品特點：Functions
??一次電流采用穿孔方式接入，穿孔方式接入，安裝方便，安全性高
??帶3 路開關量狀態監測，可以對匯流箱內的防雷器、斷路器狀態進行監控
??具有內部測溫功能，可實時監測箱內溫度，保證電氣安全
??具有DC 1500V母線電壓測量功能
??可就地顯示/液晶顯示頭，方便調試維護
??Current specification: 20A, perforation connection
??3 DI
??Temperature measurement
??Busbar voltage measurement： DC 1500V
??LCD display
??證書：Certificate
??2．APQM電能質量分析裝置：APQM Power Quality Monitoring Device
??APQM電能質量分析裝置可用于光伏并網電能質量監測
??產品特點：Functions
??穩態數據測量（電參量、諧波、間諧波、電壓波動、閃變）
??暫態數據監測（電壓暫升、暫降、中斷）
??統計功能（電能質量越限次數，電壓合格率，自動生成報表）
??Measurement of electrical parameters, harmonics, inter-harmonics, voltage fluctuation, flicker,
??Monitoring of voltage swell, voltage sag, voltage interruption,
??Statistics of power quality limit times, voltage qualification rate, and form the report.
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