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Recent studies about Taiwan power system indicate that this system exhibited voltage stability problems under severe N-2 contingencies in heavily loaded hours. We will report feasibility studies of using STATCOM to mitigate this problem. The singular value decomposition method will be utilized to identify weakest buses for STATCOM placement. The required rating is determined by planning criteria....
The passivity-based sliding mode (PBSM) approach has been used on designing static synchronous compensator (STATCOM) controller aimed at reactive power compensation and voltage regulation. The energy-dissipative properties of the proposed model derived in the synchronous d-q rotating frame are fully retained. The proposed controller design is separated into the inner loop and the outer loop controller...
This paper presents a power flow model of a voltage-source converter-based (VSC-based) HVDC transmission system suitable for incorporation into the existing Newton-Raphson algorithm. Mathematical descriptions for two configurations, point-to-point HVDC and back-to-back HVDC are derived. Different reactive compensation control modes at AC terminals of HVDC are also considered in detail. The proposed...
This paper presents a novel nonlinear control scheme for designing static synchronous compensators (STATCOM). A passivity-based approach is proposed for designing robust nonlinear STATCOM controller. The mathematical model of STATCOM will be represented by a Euler-Lagrange (EL) system corresponding to a set of EL parameters. By employing the Park's transformation, the differential geometry approach...
Power flow models of convertible static compensators for large-scale power systems are investigated. Two families of multi-configuration and multi-functional FACTS controllers, including interline power flow controllers (IPFC) and generalized unified power flow controllers (GUPFC), are considered in details. Mathematical models of the IPPC and GUPFC based on d-q axis reference frame decomposition...
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