CAJ | 학술논문

当前可靠性要求下的配电系统供电能力计算未能计及高压配电线路的转供约束，为此提出一种基于简化高压配电网网架结构的配电系统综合供电能力计算方法。首先，基于高压配电网的运行方式、转供方式以及主变在中压配电网的联络关系，提出配电系统网架结构的一种简化方法。其次，通过剖析在高压配电线路和主变 N-1校验下的负荷转供情况，充分计及高中压配电网的网架结构对负荷转供的支持作用，建立配电系统综合供电能力的计算模型。在此基础上，采用数学软件 Lingo 对模型进行求解，得到系统的供电能力，并均衡主变负载率。最后，通过算例分析，验证了所提方法的正确性和有效性。
당전가고성요구하적배전계통공전능력계산미능계급고압배전선로적전공약속，위차제출일충기우간화고압배전망망가결구적배전계통종합공전능력계산방법。수선，기우고압배전망적운행방식、전공방식이급주변재중압배전망적련락관계，제출배전계통망가결구적일충간화방법。기차，통과부석재고압배전선로화주변 N-1교험하적부하전공정황，충분계급고중압배전망적망가결구대부하전공적지지작용，건립배전계통종합공전능력적계산모형。재차기출상，채용수학연건 Lingo 대모형진행구해，득도계통적공전능력，병균형주변부재솔。최후，통과산례분석，험증료소제방법적정학성화유효성。
In the calculation of distribution system’s power supply capability by traditional methods under reliability requirement the load transfer constraint of high-voltage (HV) distribution lines is not taken into account. For this reason, based on the simplified frame structure of HV distribution network a method to calculate comprehensive power supply capability of distribution system is proposed. Firstly, based on the operation modes, load transfer modes and connection relation of main transformers in medium-voltage (MV) distribution network a method to simplify frame structure of distribution network is put forward;secondly, through dissecting the load transfer under the verification of N-1 criterion of HV distribution lines and main transformers, the support of frame structure of high-and medium-voltage distribution network for load transfer is fully considered, and a model to calculate comprehensive power supply capability of distribution system is built. The built calculation model is solved by mathematical software Lingo to obtain the power supply capability of the distribution system and to balance the load factors of main transformers. The correctness and validity of the proposed method is verified by results of calculation example.