Introduction to Energy, Renewable Energy and Electrical Engineering. Ewald F. Fuchs

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of Ampere's law to a single wire in two‐dimension...Figure E12.2.3 Application of Ampere's law in two dimensions to permanent‐ma...Figure 12.13b No‐load magnetic field B(r, φ) of the 12‐pole generator o...Figure E12.3.1 Application of Ampere's law and specifications of geometrical...Figure E12.3.2 Measured (see figure 9 of Fingersh [18]) nonsinusoidal no‐loa...Figure E12.4.1a Symmetric no‐load field of 50 kW machine [10].Figure E12.4.1b Asymmetric rated full‐load field of 50 kW machine [10].Figure E12.5.1a Symmetric no‐load field of 20 kW PMM [16].Figure E12.5.1b Asymmetric rated‐load field of 20 kW PMM [16].Figure E12.5.1c Calculation of direct‐axis X_d and stator leakage X_{s ℓ} r...Figure E12.5.1d Calculation of quadrature‐axis X_q and stator leakage X_sℓ...Figure E12.6.1 PMM with flux distribution at no load with flux‐weakening (FW...Figure 12.14a Brushless DC machine consisting of battery, inverter, and thre...Figure 12.14b Motor (stator) current waveshape based on full‐on motoring mod...Figure 12.14c Motor (stator) current waveshape based on PWM motoring mode [1...Figure 12.14d Current supplied during regeneration to battery, whereby the a...Figure E12.7.1a Sequence of gating signals for brushless DC motor in six‐ste...Figure E12.7.1b Upper graph, drain (D) current of upper MOSFET of phase a ID...Figure E12.7.1c Upper graph, drain current of upper MOSFET of phase a ID(Mau...Figure E12.7.1d Upper graph, drain current of upper MOSFET of phase a ID(Mau...Figure E12.7.1e Upper graph, drain current of upper MOSFET of phase a ID(Mau...Figure E12.7.1f Upper graph, drain current of upper MOSFET of phase a ID(Mau...Figure E12.7.1g Upper graph, drain current of upper MOSFET of phase a ID(Mau...Figure E12.7.1h Upper graph, drain current of upper MOSFET of phase a ID(Mau...Figure E12.7.1i Phase sequence of full‐on gating signals is not the same as ...Figure 12.15 Single inner magnet external fin‐cooled motor [11].Figure E12.8.1 Block diagram of 20 kW/30 kVA direct‐drive, variable‐speed wi...Figure E12.8.2 Phasor diagram of permanent‐magnet generator [18].Figure E12.8.3 Transient current during synchronization of inverter with pow...Figure 12.16 Cross section of three‐phase IM with three stator windings and ...Figure 12.17 Wye equivalent circuit of IM.Figure 12.18a Alternative wye equivalent circuit of IM.Figure 12.18b Phasor diagram (not to scale) at rated‐load operation based on...Figure 12.19 Power and loss distribution within a three‐phase IM, whereby th...Figure E12.9.1 Definition of phasor voltages and currents of stator for slip...Figure E12.9.2 Phasor diagram in the (j, 1) complex number Gaussian plane (n...Figure E12.9.3 Saturated no‐load magnetic field of three‐phase squirrel‐cage...Figure E12.10.1 Saturated no‐load magnetic field [30–35] of a three‐phase IM...Figure E12.11.1 (a) The original stator circuit is replaced by (b) Thévenin ...Figure E12.11.1c Simplified equivalent circuit employing Thévenin equivalent...Figure E12.11.1d Phasor diagram (not to scale) for rated operation based on ...Figure E12.12.1a Magnetic field for the calculation of unsaturated (linear) ...Figure E12.12.1b Magnetic field for the calculation of unsaturated (linear) ...Figure E12.12.1c Magnetic field for the calculation of starting torque at ra...Figure E12.12.1d Starting current per phase and total (three‐phase) torque...Figure 12.20a Current‐controlled PWM voltage source inverter [41] feeding a ...Figure 12.20b Phase input load voltage _a(t) = v_out1(t) = V(19) − V(123) and...Figure 12.20c Phase input load voltage _a(t) = v_out1(t) = V(19) − V(123) and...Figure 12.20d Phase input load voltage _a(t) = v_out1(t) = V(19) − V(123) and...Figure 12.20e Phase input load voltage _a(t) = v_out1(t) = V(19) − V(123) and...Figure 12.21 (a) Equivalent circuit based on consumer (motor) reference fram...Figure 12.22 (a) Equivalent circuit based on generator reference frame ( la...Figure 12.23 (a) d‐Axis equivalent circuit, (b) q‐axis equivalent circuit, a...Figure 12.24 Magnetic field distribution of two pole pitches or one period o...Figure 12.25 Six‐pole, three‐phase 250 kVA, 120/240 V, 400 Hz, and 8000 rpm ...Figure 12.26 Six-pole, three-phase 250 kVA, 120/240 V, 400 Hz, and 8000 rpm ...Figure 12.27a Two‐dimensional no‐load field of a rotating machine with a nor...Figure 12.27b Two‐dimensional no‐load field of a rotating machine with a lar...Figure 12.27c Two‐dimensional no‐load field of a rotating machine with a sma...Figure 12.28 Two‐dimensional flux distribution of synchronous machine at ful...Figure 12.29a Two‐dimensional flux distribution for the calculation of the d...Figure 12.29b Two‐dimensional flux distribution for the calculation of the q...Figure E12.13.1 Phasor diagram for non‐salient pole synchronous motor at lag...Figure E12.14.1 Input induced phase voltage e_a(t) = V(19) − V(123) and input...Figure E12.14.2 Input induced phase voltage e_a(t) = V(19) − V(123) and input...Figure E12.14.3 Phase input induced voltage e_a(t) = V(19) − V(123) and phase...Figure E12.15.1 Phasor diagram for generator operation with lagging (overexc...Figure E12.16.1 Non‐salient pole, three‐phase f = 400 Hz synchronous generat...Figure E12.16.2 DC load voltage V_out = V(0) − V(b4) = 1.65 kV of three‐phase...Figure E12.16.3 DC load voltage V_out = V(0) − V(b4) of three‐phase rectifier...

      Guide

      1  Cover

      2 Table of Contents

      3  Begin Reading

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