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Transactions: WSEAS TRANSACTIONS ON CIRCUITS AND SYSTEMS
Transactions ID Number: 28-204
Full Name: Aiqing Ma
Position: Ph.D. Candidate
Age: ON
Sex: Female
Address: Dongchuan Road 800
Country: CHINA
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E-mail address: aqmab@sjtu.edu.cn
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Title of the Paper: The application of MPCG Algorithm in the three dimensional electric field calculation of SF6 Circuit Breaker in three-phase-in-one-tank GIS
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Number of paper pages: 10
Abstract: Based on the character of the complex structure of the SF6 circuit breaker in three-phase-in-one-tank GIS (Gas Insulated Switchgear), the modified preconditioned conjugate gradient (MPCG) algorithm applied to solve multi-nodes and multi-elements large sparse real positive defined symmetric matrix is analyzed. The program diagram of MPCG algorithm is also proposed. The finite element calculation mathematical model and physical equations of SF6 circuit breaker are founded in this paper. The large sparse matrix is solved by using the MPCG algorithm. The electric field intensity and potential distribution is calculated under power frequency voltage and their corresponding cutaway charts and planforms are given. They can provide a useful and optimized design parameter for designing the circuit breaker configuration in GIS.
Keywords: MPCG(Modified Preconditioned Conjugate Gradient); Three-phase-in-one-tank; Circuit breaker; Finite element method; Sparse matrix
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