ACREL AC energy meter’s Application in PV system in Bulgaria

時間：2021-10-20

朱鹍

安科瑞電氣股份有限公司，上海嘉定 201801

Abstract: This paper introduces the application of ackry APM series AC meter in the AC side of Bulgarian photovoltaic system. It is mainly used to measure the current in the photovoltaic system, and cooperate with the transformers to measure, communicate and control the circuit system.

1.Project Overview

The company is located in Bulgaria. The company is mainly engaged in the design / installation, construction / maintenance of small photovoltaic power generation center projects in Bulgaria and surrounding countries. The customer wants to use AC meters apm801, apm810 and mutual inductors for monitoring, metering and communication of current and voltage at the AC side of photovoltaic system, and control by using the switching value function of APM meter.

2.APM Series Energy Meters

APM series power meters of ACREL are power meters that are designed according to IEC standards and synchronized with international advanced technology.

APM series meters have full power measurement, energy statistics, analysis of power quality and network communications and other functions, are mainly used for comprehensive monitoring of the quality of power supply network.

This series of meters use a modular design, with a rich function of the external DI / DO module, AI / AO module, event recording (SOE) module with T-Flash (TF) card, network communication module, Temperature and humidity measurement module, can achieve full power measurement of electrical circuit and monitoring of switch status, Dual RS485 with Ethernet interface can realize data copying of RS485 master station, eliminating the need for data switching exchange. PROFIBUS-DP interface can realize high-speed data transmission and networking function.

3.Type and Function Description

4.Technical parameters

5.Requirements from Customer

terms of reference from grid supplier:

（1）monitoring voltages: L1-N, L2-N, L3-N. Unominal = 230V;

（2）switching relay output at overvoltage: 2 steps:

Step 1: 110% of Unominal or 253V - delay 60 seconds (s) ;

Step 2: 115% of Unominal or 264V - delay 0.1s;

（3）switching relay output at undervoltage:

1-step; 80% of Unominal or 184V - delay 0.2s; Range of settings: U: 10-** of Unominal, step not listed, maybe 1V ot 1%; Delay: 0.05 s to 3s, step - not listed, maybe 1s;

（4）switching relay output at overfrequency

1-step; 50.5Hz - delay 0.1s; Range of settings: F: 50-52.5Hz, step 0.1Hz; Delay: 0.1-0.5s, step - maybe 0.1s;

（5）switching relay output at overfrequency

1- step; 47.5Hz - delay 0.1s; Range of settings: F: 47.5-50Hz, step 0.1Hz; Delay: 0.1-0.5s, step - maybe 0.1s;

（6）Delay for recovering. When DO is on by some of previous reasons, there should be time delay after grid parameter(s) are back in nominal range(s). Time range 1-60s, step 1s

（7）Additional settings. (If they are possible).

7.1 When Unominal is lower than 60-70%, under and overfrequency monitoring can be disabled

7.2 When overfrequency/underfrequency is happened - the DO should not be recovered automatically, it should wait for some kind of manual/remote restore.

The above 7 items are the special needs of customers for the purchased products. Except that some requirements in point 7 cannot meet the needs of customers, other needs can be met. Basically solved the needs of customers.

6.Installation Picture

Bibliography

1.Solutions For Enterprise Micro-grid System 2021.04

作者簡介：

朱鹍，女，就職于安科瑞電氣股份有限公司，主要研究方向為企業(yè)能源管控

：@手機：QQ：

15000353138

詞條
詞條說明
探討照明智能控制系統(tǒng)在智能建筑中的設計與應用
【摘要】：在科學技術不斷發(fā)展的情況下，建筑業(yè)也得到了快速發(fā)展，在這種情況下，逐漸出現(xiàn)了智能，這種建筑也慢慢成為了人們關注的。在智能建筑發(fā)展過程中，ABB智能照明系統(tǒng)得到了非常廣泛的應用，這種照明系統(tǒng)在使用的時候線路設計是非常簡單的，系統(tǒng)在進行安裝的時候也非常方便，而且，在進行操作和維護的時候也非常，因此，這種照明系統(tǒng)在智能建筑中得到了非常好的發(fā)展?！娟P鍵字】：智能照明；智能建筑；應用
淺談智能電力電容器在無功補償中的應用
朱鹍安科瑞電氣股份有限公司?上海嘉定201801?摘要：目前農(nóng)村配電網(wǎng)無功補償一般使用傳統(tǒng)無功補償裝置，存在運行可靠性低、容量配置調整困難、安裝接線復雜、維護困難、控制技術落后等問題，無法滿足現(xiàn)代農(nóng)村用電負荷*劇增的需求。針對農(nóng)村家用電器為單相設備，負荷變動大，三相負荷不平衡，終端電壓低的供電現(xiàn)狀，提出采用智能集成電容器混合補億方式，解決了農(nóng)村低壓配電網(wǎng)因無功功率缺乏導
應急疏散照明系統(tǒng)在百濟神州生物制藥的應用
朱鹍安科瑞電氣股份有限公司，上海嘉定 201801??? ? ?消防應急疏散照明技術是一項受到各國重視、有多年發(fā)展歷史和涉及建筑火災時人員生命安全的重要救生疏散技術。消防應急燈具包括照明和標志燈具兩類。近年來，隨著照明技術的*發(fā)展，高大而復雜的智能建筑日益增多，消防應急照明法規(guī)和標準不斷健全和完善，消防應急燈具產(chǎn)品品種不斷增多，性能不斷改進
淺談并網(wǎng)光伏發(fā)電對電網(wǎng)電能質量的影響及解決方案
摘要：光伏發(fā)電作為當今一種新型、的發(fā)電方式，對傳統(tǒng)電能的需求起到了很大緩解作用。但對于并網(wǎng)光伏發(fā)電系統(tǒng)而言，由于其本身隨機性、波動性、間歇性的特點，且并網(wǎng)光伏發(fā)電系統(tǒng)中含有大量的非線性電力電子元器件，相比傳統(tǒng)發(fā)電方式，光伏發(fā)電對電網(wǎng)電能質量產(chǎn)生了很大影響。本文分析了并網(wǎng)光伏發(fā)電對電網(wǎng)產(chǎn)生的諧波、電壓波動和閃變、直流注入、孤島效應等問題，并研究探討了改善電能質量的可行性措施。