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# Wind power system analysis

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Author of wind power system analysis; edited by Li ShenghuPublished time: 2012 Introduction Brief introduction of large-capacity wind power grid connection, brings many new problems to power system analysis and control. The fault ride-through of the wind turbine after the fault is conducive to the safety and stability of the power grid, but it increases the difficulty of analysis and calculation. "Wind Power System Analysis" is aimed at wind power systems, analyzing the modeling and effects of wind turbines in power flow, transient stability, static stability, and probabilistic simulation. Taking into account the structure of the wind turbine and the constraints of the converter, an extended power flow model is proposed to establish a power flow sensitivity algorithm. Taking into account the constraints of the windings and the converter, the optimization algorithm is used to solve the steady-state output range. With the internal potential as the state variable, an accurate electromagnetic transient model of the synchronous motor is proposed; the fault ride-through of wind turbines and the participation in emergency control methods are discussed. Use Prony analysis to extract the characteristic parameters of wind power system oscillation; distinguish synchronous motors and induction motors, and define low-frequency oscillation modes; derive high-order sensitivity of characteristic roots and eigenvalue sensitivity of reduced-order systems; explore the relationship between power flow convergence and static voltage stability, electromagnetic The effects of stator transient and speed changes in the transient model; a probability evaluation algorithm for wind power systems is given, and the reliability and sensitivity algorithms for multi-state equipment are derived. "Analysis of Wind Power System" can be used as a reference for wind power system research and operation dispatchers, as well as a textbook for postgraduates in colleges and universities.
Preface Chapter 1 Overview of Wind Power
1.1 Introduction to Wind Power
1.2 Introduction of wind turbine
1.3 Constraints on wind power
1.4 Introduction to Wind Power Grid Connection Regulations
1.4.1 Active frequency control
1.4.2 Reactive Voltage Control Chapter 2 Power Flow Calculation Basis
2.1 Power Flow Algorithm
2.1.1 Numerical Solution of Nonlinear Equations
2.1.2 Power Flow Equation
2.1.3 Modeling of high-voltage long lines
2.1.4 Tide divergence margin index
2.2 Unconventional node type power flow modeling
2.2.1 Modeling of PIf type overexcited units
2.2.2 PQV type SVC modeling
2.2.3 PQV type StatCOM modeling
2.3 Variable network structure power flow model
2.3.1 TCSC Power Flow Modeling
2.3.2 SSSC Power Flow Modeling
2.3.3 UPFC Power Flow Modeling
2.4 Low-Voltage Distribution Network Power Flow Algorithm
2.5 Frequency-dependent power flow model Chapter 3. Wind power system power flow algorithm
3.1 Active power output characteristics of wind turbines
3.2 Induction motor flow model
3.2.1 Simplified Power Flow Model
3.2.2 Extended Power Flow Model
3.2.3 Discussion and Application of Induction Motor Flow Model
3.3 Power flow modeling of doubly-fed induction motors
3.3.1 Power flow of doubly-fed induction motor
3.3.2 Initial value of doubly-fed induction motor flow
3.4 Reactive power range of doubly-fed induction motor
3.4.1 Operating range of doubly-fed unit
3.4.2 Reactive Power Range Optimization Algorithm Chapter 4 Dynamic Modeling of Wind Turbines
4.1 Dynamic Modeling of Wind Turbines
4.1.1 Mechanical part
4.1.2 Electrical section
4.2 Vector control of wind turbine
4.2.1 Cage Motor Rotor Flux Orientation
4.2.2 Stator parameter orientation of doubly-fed motor
4.2.3 Operating range under vector control
4.3 Dynamic analysis of wind turbines
4.3.1 Constant speed and constant frequency wind turbine
4.3.2 Doubly Fed Wind Turbines Chapter 5 Dynamic Modeling of Synchronous Generators
5.1 Dynamic model of synchronous motor
5.1.1 Synchronous Motor Structure and Basic Equations
5.1.2 Electromagnetic Transient Modeling
5.1.3 Expression of electromagnetic torque in rotor motion equation
5.1.4 Electromechanical transient solution of synchronous generator
5.2 Reduction condition of synchronous motor
5.2.1 Reduced-Order Equivalent Conditions
5.2.2 Calculation accuracy of reduced-order models Chapter 6 Transient stability of wind power systems
6.1 Wind power system transient stability
6.2 Machine-Network Interface Equation
6.2.1 Coordinate Transformation
6.2.2 Modeling of Induction Motors and Loads
6.3 Model of control equipment attached to synchronous motor
6.3.1 Excitation system
6.3.2 Speed regulation system
6.4 Wind Power System Dynamic Response
6.5 Emergency control and fault ride-through
6.6 Oscillation Characteristic Parameters Chapter 7 Static Stability of Wind Power System
7.1 Small disturbance stability
7.2 Wind power system static stability
7.2.1 Simplified Static Stable Model
7.2.2 Static Stability Modeling of Wind Power System
7.3 Electromechanical transient characteristics of induction motors
7.3.1 Effect of mode on state variables ...
Chapter 8 References for Probabilistic Simulation of Wind Power Systems

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