1.闋呯洰鑳屾櫙Background

  闅ㄨ憲鍏変紡琛屾キ(y猫)鐨勭櫦(f膩)灞曪紝閮ㄥ垎鍦板崁(q奴)鏉戠礆璁婂鍣ㄥ強宸ユキ(y猫)鐢ㄩ浕璁婂鍣ㄥ閲忚垏鍏変紡闋呯洰鐨勮姗�(j墨)瀹归噺铏曚簬椋藉拰銆傞浕缍�(w菐ng)鍏徃瑕佹眰灏嶅悗寤虹殑鍏変紡骞剁恫(w菐ng)绯荤当(t菕ng)鐐轰笉鍙€嗘祦鐧�(f膩)闆荤郴绲�(t菕ng)锛屾寚鍏変紡骞剁恫(w菐ng)绯荤当(t菕ng)鎵€鐧�(f膩)鐢熺殑闆荤敱鏈湴璨�(f霉)杓夋秷鑰�锛屽浣欑殑闆讳笉鍏佽ū閫氶亷浣庡閰嶉浕璁婂鍣ㄥ悜涓婄礆闆荤恫(w菐ng)閫嗗悜閫侀浕銆�

  With the development of photovoltaic industry, the capacity of village-level transformers and industrial power transformers and the installed capacity of photovoltaic projects are saturated in some areas.The power grid company requires the photovoltaic grid-connected system to be a non-backflow current generation system, which means that the electricity generated by the photovoltaic grid-connected system is consumed by the local load, and the excess electricity is not allowed to be sent to the upper power grid through the low-voltage distribution transformer in reverse direction.

  鍏変紡閫嗚畩鍣ㄥ湪灏囧厜浼忕祫浠剁敘(ch菐n)鐢熺殑鐩存祦闆昏畩鎻涚偤浜ゆ祦闆绘檪锛屾渻澶鹃洔鏈夌洿娴佸垎閲忓拰璜ф尝锛屼笁鐩搁浕娴佷笉骞宠　锛岃几鍑哄姛鐜囦笉纰哄畾鎬х瓑锛岀洰鍓嶅熀鏈矑鏈夐噰鍙栨不鐞嗘墜娈�锛屽洜姝�锛岀暥(d膩ng)鏈夌櫦(f膩)闆诲姛鐜囬€佸線鍏敤闆荤恫(w菐ng)鏅�锛屽氨鏈冨皪闆荤恫(w菐ng)鐢�(ch菐n)鐢熻娉㈡薄鏌擄紝鏄撻€犳垚闆荤恫(w菐ng)闆诲娉㈠嫊锛岄杻璁婄瓑锛屽鏋滄湁瑷卞閫欐ǎ鐨勭櫦(f膩)闆绘簮鍚戦浕缍�(w菐ng)杓搁浕鏅�锛屾渻灏�(d菐o)鑷撮浕缍�(w菐ng)闆昏兘璩�(zh矛)閲忓毚(y谩n)閲嶄笅闄�銆傛墍浠ラ€欓鍏変紡鐧�(f膩)闆荤郴绲�(t菕ng)闋堥厤濂楀姞瑁濋槻閫嗘祦瑷�(sh猫)鏂斤紝渚嗛槻姝㈤€嗗姛鐜囩殑鐧�(f膩)鐢�銆�

  Photovoltaic inverter in photovoltaic components will produce direct current into alternating current (ac), has the dc component and harmonic mixing, unbalanced three phase current, output power of uncertainty, such as the current basic didn't take effective management measures, therefore, when there is power to the utility grid, will generate harmonic pollution to power network, easy cause power grid voltage fluctuation and flicker, etc.,If there are many such power sources to transmit electricity to the grid, the power quality of the grid will be seriously degraded.Therefore, this kind of photovoltaic power generation system must be equipped with anti-backflow current facilities to prevent the occurrence of reverse power.

  鐣�(d膩ng)鍏変紡鐧�(f膩)闆婚噺澶т簬璨�(f霉)杓夐渶姹傞浕閲忔檪锛屾渻鐢�(ch菐n)鐢熼€嗗姛鐜�銆傚洜姝�锛屾垜鍊戦渶瑕佸剙琛ㄤ締鍒ゅ畾銆傞€嗚畩鍣ㄦ湁閬庡姛鐜囪几鍑猴紝鍐嶇敱鍎€琛ㄩ€氶亷RS485閫氳▕鐧�(f膩)鍑轰俊铏熷拰閫嗚畩鍣ㄦ暩(sh霉)鎿�(j霉)浜や簰锛岃(di脿o)绡€(ji茅)閫嗚畩鍣ㄨ几鍑哄姛鐜�锛屼娇鍏惰几鍑哄姛鐜囧拰鐢ㄩ浕鍔熺巼骞宠　銆�

  When the photovoltaic power generation is greater than the load demand, the inverse power will be generated.So we need instruments to determine that Inverter has power output, and then by the instrument through RS485 communication signal and inverter data interaction, adjust the inverter output power, so that its output power and power balance.

  2.闋呯洰姒傝堪Project Overview

  鑿插緥璩撲竴瀹跺仛鍏変紡鐧�(f膩)闆荤殑鍏徃锛岃伅(li谩n)绯诲埌鎴戝徃锛屽皨鎵鹃槻閫嗘祦闆昏〃  锛� 灏嶆帴鍗�(xi茅)璀板悎閬╁悗锛� 閲囪臣鎴戝徃鐨凙CR10R-D16TE.

  A photovoltaic power generation company in the Philippines contacted our company to look for anti-backflow current meters. After proper connection agreement, we will purchase ACR10R-D16TE from our company.

  3.闃查€嗘祦妾㈡脯鍎€琛ˋnti-backflow detection meter

  鐣�(d膩ng)鍏変紡鐧�(f膩)闆婚噺澶т簬璨�(f霉)杓夐渶姹傞浕閲忔檪锛屾渻鐢�(ch菐n)鐢熼€嗗姛鐜�銆傚洜姝わ紝鎴戝€戦渶瑕佸剙琛ㄤ締鍒ゅ畾閫嗚畩鍣ㄦ湁閬庡姛鐜囪几鍑�锛屽啀鐢卞剙琛ㄩ€氶亷RS485閫氳▕鐧�(f膩)鍑轰俊铏熷拰閫嗚畩鍣ㄦ暩(sh霉)鎿�(j霉)浜や簰锛岃(di脿o)绡€(ji茅)閫嗚畩鍣ㄨ几鍑哄姛鐜�锛屼娇鍏惰几鍑哄姛鐜囧拰鐢ㄩ浕鍔熺巼骞宠　銆�

  When the photovoltaic power generation is greater than the load demand, reverse power will be generated. Therefore, we need an meter to determine that the inverter has over-power output, and then the meter sends a signal through RS485 communication to interact with the inverter data to adjust the output power of the inverter to balance the output power and the electrical power.

  4.鍔熻兘Function

  5.鎺ョ窔Wiring

  6.鍏稿瀷閺堟帴 Typical Connection

  鍙冭€冩枃鐛�(xi脿n) Bibliography

  1.Solutions for enterprise micro-grid system