110年 - 110 國立臺灣科技大學_碩士班招生試題_電機工程系(甲組)：電力系統#112841

科目：研究所、轉學考(插大)◆電力系統 | 年份：110年 | 選擇題數：0 | 申論題數：16

試卷資訊

所屬科目：研究所、轉學考(插大)◆電力系統

選擇題 (0)

申論題 (16)

(a) Load factor.(3%)

(b) Load shedding.(3%)

(c) Annual plant factor. (3%)

(d) Automatic meter reading. (AMR) (3%)

(e) Transformer load management. (TLM) (3%)

(a)Find the inductance (mH/km) per phase per kilometer of the line. (7%)

(b) Find the capacitance (μF/km) per phase per kilometer of the line. (8%)

(a) Determine the bus admittance matrix without mutual coupling between elements. (5%)

(b) Determine the bus admittance matrix with mutual coupling between elements. (15%)

(a) Neglecting line losses, determine the optimal economic scheduling of generation. (9%)

(b) The real power loss with generation expressed in per unit on a 100-MVA base is given by P_L(pu)= 0.02P_1(pu) +0.05P_2(pu)+0.01P_3(pu),determinethe power loss in the transmission lines. (6%)

(a) Determine the bus voltages and line currents during fault. (6%)

(b) Determine the critical clearing time.(9%) Bus l XI=0.2 Xu=0.6 X2=0.4 Bus 2 V=1.0 Xd=0.36 Fig. 3. The one-line diagram for Problem 5.

(a) Assume there is no frequency-dependent load. Find the steady-state frequency deviation and the new generation on each unit. (10%)

(b) The load varies 0. 67 percent for every 1 percent change in frequency. Find the steady-state frequency deviation and the new generation on each unit. (5%)

(c) Explain the operating principles of Frequency Control and Voltage Control in power system. (5%)