2楼
哪有呀？
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3楼
哪呢？？？:Q :Q :Q
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4楼
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5楼
FACTS模型matlab里面都有，要看英文的，直接看matlab帮助文件就可以了。
王锡凡《现代电力系统分析》 这本书里面也有介绍 不过也不是英文
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6楼
Power-Electronics Based FACTS
Static Synchronous Compensator (Phasor Type) Implement phasor model of three-phase static synchronous compensator
Static Synchronous Series Compensator (Phasor Type) Implement phasor model of three-phase static synchronous series compensator
Static Var Compensator (Phasor Type) Implement phasor model of three-phase static var compensator
Unified Power Flow Controller (Phasor Type) Implement phasor model of three-phase unified power flow controller
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7楼
Static Synchronous Compensator
Implement phasor model of three-phase static synchronous compensator
The Static Synchronous Compensator (STATCOM) is a shunt device of the Flexible AC Transmission Systems (FACTS) family using power electronics to control power flow and improve transient stability on power grids [1]. The STATCOM regulates voltage at its terminal by controlling the amount of reactive power injected into or absorbed from the power system. When system voltage is low, the STATCOM generates reactive power (STATCOM capacitive). When system voltage is high, it absorbs reactive power (STATCOM inductive).
The variation of reactive power is performed by means of a Voltage-Sourced Converter (VSC) connected on the secondary side of a coupling transformer. The VSC uses forced-commutated power electronic devices (GTOs, IGBTs or IGCTs) to synthesize a voltage V2 from a DC voltage source. The principle of operation of the STATCOM is explained on the figure below showing the active and reactive power transfer between a source V1 and a source V2. In this figure, V1 represents the system voltage to be controlled and V2 is the voltage generated by the VSC.
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8楼
Operating Principle of the STATCOM
In steady state operation, the voltage V2 generated by the VSC is in phase with V1 (δ=0), so that only reactive power is flowing (P=0). If V2 is lower than V1, Q is flowing from V1 to V2 (STATCOM is absorbing reactive power). On the reverse, if V2 is higher than V1, Q is flowing from V2 to V1 (STATCOM is generating reactive power). The amount of reactive power is given by
A capacitor connected on the DC side of the VSC acts as a DC voltage source. In steady state the voltage V2 has to be phase shifted slightly behind V1 in order to compensate for transformer and VSC losses and to keep the capacitor charged. Two VSC technologies can be used for the VSC:
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VSC using GTO-based square-wave inverters and special interconnection transformers. Typically four three-level inverters are used to build a 48-step voltage waveform. Special interconnection transformers are used to neutralize harmonics contained in the square waves generated by individual inverters. In this type of VSC, the fundamental component of voltage V2 is proportional to the voltage Vdc. Therefore Vdc has to be varied for controlling the reactive power.
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VSC using IGBT-based PWM inverters. This type of inverter uses Pulse-Width Modulation (PWM) technique to synthesize a sinusoidal waveform from a DC voltage source with a typical chopping frequency of a few kilohertz. Harmonic voltages are cancelled by connecting filters at the AC side of the VSC. This type of VSC uses a fixed DC voltage Vdc. Voltage V2 is varied by changing the modulation index of the PWM modulator.
The STATCOM (Phasor Type) block models an IGBT-based STATCOM (fixed DC voltage). However, as details of the inverter and harmonics are not represented, it can be also used to model a GTO-based STATCOM in transient stability studies. A detailed model of a GTO-based STATCOM is provided in the FACTS demo library (power_statcom_gto48p demo).
The figure below shows a single-line diagram of the STATCOM and a simplified block diagram of its control system.
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9楼
反正我看不懂，直接复制到matlab里面的帮助文件:lol
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