Matlab-OpenDSS 연계 모의를 이용한 배전 계통의 스마트 인버터 전압 제어 방안 연구 = A Study on Voltage Control Method of Smart Inverter using Matlab-OpenDSS Co-Simulation on Distribution Networks

다국어 초록 (Multilingual Abstract)

PV Generator at the end of the distribution line affects the direction of the line current and causes voltage increase. Various DER outputs connected to the distribution system have different control characteristics for each connection point. The DER connection point can greatly influence the inverter function and parameter settings. The smart inverter model presented in this paper is a model of simultaneously considering voltage stability of DER linked distribution systems and analyzed at PCC with Matlab-COM. The PCC Voltage when finally stabilized after using Volt-Var function can be adjusted more when there is a margin for the reactive power output. Dynamic Voltage Error Compensation (DVEC) algorithm presented in this paper that automatically refers volt-var curve and measured moving average voltage and finally compensate reactive power output of smart inverter.

참고문헌 (Reference)

1 조성수 ; 맹창엽 ; 조종민 ; 명노길 ; 김현진, "Volt-Var 특성 곡선의 기울기가 전압 Oscillation에 미치는 영향" 대한전기학회 71 (71): 105-113, 2022

2 EPRI, "Tailoring IEEE 1547 Recommended Smart Inverter Setting Based on Modeling Grid Performance, National Grid Solar Phase II Program Report" 2020

3 EPRI, "Specification for Smart Inverter Interactions with the Electric Grid Using International Electrotechnical Commission 61850" 2010

4 F, Ding, "Photovoltaic Impact Assessment of Smart Inverter Volt-VAR Control on Distribution System Conservation Voltage Reduction and Power Quality" NREL 2016

5 Wenzong Wang, "Oscillation Mechanism and Setting Guideline for Inverter Volt-Var Control" 2021

6 Hyeong-Jin Lee, "Optimal Parameters of Volt–Var Function in Smart Inverters for Improving System Performance" MDPI AG 13 (13): 2294-, 2020

7 M. Ingram, "Informative Background on the Interoperability Requirements in IEEE Std 1547-2018" NREL 2021

8 Minister of Trade Industry and Energy, "Industry and Energy’s 5th Framework Plan for Renewable Energy(2020–2034)"

9 IEEE PES, "Impact of IEEE 1547 Standard on Smart Inverters and the Applications in Power Systems" 2020

10 IEEE SA, "IEEE 1547.1-2020 IEEE Standard Conformance Test Procedures for Equipment Interconnecting Distributed Energy Resources with Electric Power Systems and Associated Interfaces"

11 EPRI, "Federated Architectureor Distributed Energy Resources Integration" 2020

12 EPRI, "Common Functions for Smart Inverters" 2016

13 EPRI, "Analysis to Inform CA Grid Integration Rules for PV: Final Report on Inverter Settings for Transmission and Distribution System Performance" 2016

14 IEEE, "1547-2018 IEEE Standard for Interconnection and Interoperability of Distributed Energy Resources with Associated Electric Power Systems Interfaces"