CAJ | 학술논문

含分布式电源的配电网实际结构复杂，使用传统评估方法难以确定分布式电源接入后对保护影响的严重程度。分析了分布式电源对配电网保护影响最严重的极端情况，提出一种以分布式电源提供的最大短路电流为计算依据的保护影响评估方法，评估分布式电源集中接入后极端情形下对保护产生的具体影响。通过 Matlab／Simulink 进行仿真验证，说明了该方法的可行性和有效性。
함분포식전원적배전망실제결구복잡，사용전통평고방법난이학정분포식전원접입후대보호영향적엄중정도。분석료분포식전원대배전망보호영향최엄중적겁단정황，제출일충이분포식전원제공적최대단로전류위계산의거적보호영향평고방법，평고분포식전원집중접입후겁단정형하대보호산생적구체영향。통과 Matlab／Simulink 진행방진험증，설명료해방법적가행성화유효성。
Since the actual structures of the active distribution network with distributed electric resources (DER) are complex ,it is difficult to measure the impact levels in traditional methods . The worst situations on protection are analyzed ,and an evaluation method based on maximum value of short circuit current provided by DER is proposed in this paper .The simulation with Matlab/Simulink software is introduced ,the error sources of the method are analyzed ,and the results verify the feasibility and validity of the proposed method .