Tài liệu miễn phí Điện - Điện tử
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Lecture Power system stability - Lesson 7: Stability Overview, Synchronous Machine Modeling
Lecture Power system stability - Lesson 7: Stability Overview, Synchronous Machine Modeling provide students with knowledge about symmetric line spacing – 69 kV; returning to the simulation: generator angles on different reference frames; plot designer with new plots with the wscc nine bus case; dynamic load models;...
4/7/2023 11:27:53 PM +00:00
Lecture Power system stability - Lesson 6: Symmetrical Component Review, Stability overview
Lecture Power system stability - Lesson 6: Symmetrical Component Review, Stability overview provide students with knowledge about dallman after the accident; symmetric components; positive, negative and zero sequence sets; symmetrical component conversion; symmetrical components to decouple unbalanced networks;...
4/7/2023 11:27:46 PM +00:00
Lecture Power system stability - Lesson 5: Three-Phase Line Modeling, Stability overview
Lecture Power system stability - Lesson 5: Three-Phase Line Modeling, Stability overview provide students with knowledge about lumped capacitance model; modeling transmission lines; untransposed lines with ground conductors; modeling line capacitance; frequency dependence;...
4/7/2023 11:27:39 PM +00:00
Lecture Power system stability - Lesson 4: Electromagnetic Transients
Lecture Power system stability - Lesson 4: Electromagnetic Transients provide students with knowledge about special case 2: wave equation; determining the constants; equivalent circuit representation; lumped parameter model; including line resistance; numerical integration with trapezoidal method; full solution over three cycles;...
4/7/2023 11:27:30 PM +00:00
Lecture Power system stability - Lesson 3: Numeric Solution of Differential Equations, Electromagnetic Transients
Lecture Power system stability - Lesson 3: Numeric Solution of Differential Equations, Electromagnetic Transients provide students with knowledge about fourth urder Runge-Kutta; multistep methods; multistep motivation; numerical instability; stiff differential equations; trapezoidal linear case;...
4/7/2023 11:27:24 PM +00:00
Lecture Power system stability - Lesson 2: Numeric Solution of Differential Equations
Lecture Power system stability - Lesson 2: Numeric Solution of Differential Equations provide students with knowledge about static versus dynamic analysis; slow versus fast dynamics; positive sequence versus full three-phase; power flow versus dynamics; interactive simulation: powerworld dynamics studio (DS);...
4/7/2023 11:27:14 PM +00:00
Lecture Power system stability - Lesson 1: Overview and Numeric Solution of Differential Equations
Lecture Power system stability - Lesson 1: Overview and Numeric Solution of Differential Equations provide students with knowledge about power system examples; major power grid components; three-phase systems; synchronous electric grids; power system time frames;...
4/7/2023 11:27:06 PM +00:00
Lecture Power system operation and control - Lesson 25: Renewable energy systems, distribution systems, smart grid
Lecture Power system operation and control - Lesson 25: Renewable energy systems, distribution systems, smart grid provide students with knowledge about environmental aspects of wind energy, human aesthetics; shadow flicker is more of an issue in high latitude countries since a lower sun casts longer shadows; wind turbines and radar; types of wind turbines for power flow and transient stability;...
4/7/2023 11:26:59 PM +00:00
Lecture Power system operation and control - Lesson 24: Modeling load, renewable energy systems
Lecture Power system operation and control - Lesson 24: Modeling load, renewable energy systems provide students with knowledge about four major classes of induction motors, based on application; key values are starting torque, pull-out torque, full-load torque, and starting current; the maximum of the torque-speed curve varies with the square of the terminal voltage;...
4/7/2023 11:26:52 PM +00:00
Lecture Power system operation and control - Lesson 23: Frequency response, modeling load
Lecture Power system operation and control - Lesson 23: Frequency response, modeling load provide students with knowledge about maintain constant frequency with changing load; single generator, emergency generator or isolated system, isochronous governor; graph shows the change in the mechanical output; allow power sharing between generators the solution is to use what is known as droop control;...
4/7/2023 11:26:40 PM +00:00
Lecture Power system operation and control - Lesson 22: Transient stability
Lecture Power system operation and control - Lesson 22: Transient stability provide students with knowledge about marginal prices; determine the current out of the generator from the initial conditions, then the terminal voltage; initial state variable are determined by solving with the differential equations;...
4/7/2023 11:26:33 PM +00:00
Lecture Power system operation and control - Lesson 21: Transient stability
Lecture Power system operation and control - Lesson 21: Transient stability provide students with knowledge about competing in a simple electricity market that has a single buyer of electricity (an independent system operator [ISO]) and multiple sellers; playing one of those sellers as the owner of a portfolio of generators; other students will have the exact same portfolio;...
4/7/2023 11:26:26 PM +00:00
Lecture Power system operation and control - Lesson 20: Transient stability
Lecture Power system operation and control - Lesson 20: Transient stability provide students with knowledge about power system time scales and transient stability; power system stability terms; generator transient stability models; generator electrical model; generator mechanical model; generator swing equation; single machine infinite bus (SMIB); SMIB equilibrium points;...
4/7/2023 11:26:19 PM +00:00
Lecture Power system operation and control - Lesson 19: Power markets
Lecture Power system operation and control - Lesson 19: Power markets provide students with knowledge about real-time us electric grid operating data; horizontal market power; market power and scarcity rents; symptoms of market power; economic theory tells us that in a market with perfect competition, prices should be equal to the marginal cost to supply the product;...
4/7/2023 11:26:12 PM +00:00
Lecture Power system operation and control - Lesson 18: Security constrained OPF (SCOPF), power markets
Lecture Power system operation and control - Lesson 18: Security constrained OPF (SCOPF), power markets provide students with knowledge about security constrained optimal power flow (SCOPF) is similar to OPF except it also includes contingency constraints; common solution is to alternate between solving a power flow and contingency analysis, and an LP;...
4/7/2023 11:26:05 PM +00:00
Lecture Power system operation and control - Lesson 17: Optimal power flow, linear programming
Lecture Power system operation and control - Lesson 17: Optimal power flow, linear programming provide students with knowledge about OPF functionally combines the power flow with economic dispatch; SCOPF adds in contingency analysis; in both minimize a cost function, such as operating cost, taking into account realistic equality and inequality constraints;...
4/7/2023 11:25:58 PM +00:00
Lecture Power system operation and control - Lesson 16: Economic dispatch, optimal power flow
Lecture Power system operation and control - Lesson 16: Economic dispatch, optimal power flow provide students with knowledge about rankine cycle uses a fluid that is evaporated and condensed; Brayton cycle when just a gas; work output is the integral of the P-V diagram; we require a change in pressure and volume; plants are more efficient when there is a greater temperature difference;...
4/7/2023 11:25:52 PM +00:00
Lecture Power system operation and control - Lesson 15: Economic dispatch
Lecture Power system operation and control - Lesson 15: Economic dispatch provide students with knowledge about since the load is variable and there must be enough generation to meet the load, almost always there is more generation capacity available than load; optimally determining which generators to use can be a complicated task due to many different constraints;...
4/7/2023 11:25:45 PM +00:00
Lecture Power system operation and control - Lesson 14: Power system control, economic dispatch
Lecture Power system operation and control - Lesson 14: Power system control, economic dispatch provide students with knowledge about major issue with power system operation is the limited capacity of the transmission system; indirectly control transmission line flow by changing the generator outputs; similar control issues with voltage;...
4/7/2023 11:25:38 PM +00:00
Lecture Power system operation and control - Lesson 13: Power flow, contingency analysis, power system control
Lecture Power system operation and control - Lesson 13: Power flow, contingency analysis, power system control provide students with knowledge about contingency analysis; solving large power systems; modeling voltage dependent load; dishonest Newton-Raphson; two bus dishonest ROC; decoupled power flow formulation; decoupling approximation;...
4/7/2023 11:25:31 PM +00:00
Lecture Power system operation and control - Lesson 12: Power flow
Lecture Power system operation and control - Lesson 12: Power flow provide students with knowledge about power flow application PJM control center; five bus system Ybus; five bus power system solved; five bus system with capacitor; good power system operation; power system operation over time;...
4/7/2023 11:25:25 PM +00:00
Lecture Power system operation and control - Lesson 11: Power flow
Lecture Power system operation and control - Lesson 11: Power flow provide students with knowledge about real power balance equations; Newton-Raphson power flow; power flow variables; N-R power flow solution; power flow Jacobian matrix; two bus case low voltage solution; two bus region of convergence; generator reactive power limits;...
4/7/2023 11:25:18 PM +00:00
Lecture Power system operation and control - Lesson 10: Synchronous machine modeling
Lecture Power system operation and control - Lesson 10: Synchronous machine modeling provide students with knowledge about rotation speed and two main types of synchronous machines; synchronous machine rotors; synchronous machine stators; brief coverage of magnetics; magnetic flux density; flux linkages and Faraday’s law; creating a voltage in an open-circuited generator;...
4/7/2023 11:25:07 PM +00:00
Lecture Power system operation and control - Lesson 9: Power flow, synchronous machines
Lecture Power system operation and control - Lesson 9: Power flow, synchronous machines provide students with knowledge about Gauss power flow; slack bus; stated another way; Gauss with many bus systems; accelerated G-S convergence; Gauss-Seidel advantages/disadvantages; Newton-Raphson algorithm; multi-variable Newton-Raphson;...
4/7/2023 11:25:01 PM +00:00
Lecture Power system operation and control - Lesson 8: Load and generator models, bus admittance matrix, power flow
Lecture Power system operation and control - Lesson 8: Load and generator models, bus admittance matrix, power flow provide students with knowledge about high voltage transformer manufacturing in North America; power flow analysis; linear versus nonlinear systems; linear power system elements; nonlinear power system elements; nonlinear systems may have multiple solutions or no solution;...
4/7/2023 11:24:52 PM +00:00
Lecture Power system operation and control - Lesson 7: Transformer models, per unit
Lecture Power system operation and control - Lesson 7: Transformer models, per unit provide students with knowledge about power systems are characterized by many different voltage levels, ranging from 765 kV down to 240/120 volts; transformers are used to transfer power between different voltage levels; the ability to inexpensively change voltage levels is a key advantage of ac systems over dc systems;...
4/7/2023 11:24:46 PM +00:00
Lecture Power system operation and control - Lesson 6: Transmission line and Transformer models
Lecture Power system operation and control - Lesson 6: Transmission line and Transformer models provide students with knowledge about bundled conductor pictures; inductance of lines with bundled conductors; high voltage transmission lines and cables can have significant capacitance; additional transmission topics; transmission line equivalent circuit;...
4/7/2023 11:24:37 PM +00:00
Lecture Power system operation and control - Lesson 5: Power system operations, Transmission line models
Lecture Power system operation and control - Lesson 5: Power system operations, Transmission line models provide students with knowledge about the major variable cost is associated with generation; cost to generate a MWh can vary widely; gor some types of units (such as hydro and nuclear) it is difficult to quantify; for thermal units it is much easier; these costs will be discussed later in the course;...
4/7/2023 11:24:31 PM +00:00
Lecture Power system operation and control - Lesson 3: Power grid history, Three-phase
Lecture Power system operation and control - Lesson 3: Power grid history, Three-phase provide students with knowledge about use of digital information and control techniques; dynamic grid optimization with cyber-security; deployment of distributed resources including; customer participation and smart appliances; integration of storage including PHEVs; development of interoperability standard;...
4/7/2023 11:24:18 PM +00:00
Lecture Power system operation and control - Lesson 2: Introduction, Power grid history
Lecture Power system operation and control - Lesson 2: Introduction, Power grid history provide students with knowledge about introduction and review of phasors & three phase; transmission line and transformer modeling; models for generators, and loads; power flow analysis and control; economic system operation/restructuring; power system stability; distribution systems; emerging topics;...
4/7/2023 11:24:06 PM +00:00