The following information was submitted:
Transactions: WSEAS TRANSACTIONS ON SYSTEMS
Transactions ID Number: 28-657
Full Name: Aiqing Ma
Position: Ph.D. Candidate
Age: ON
Sex: Female
Address: Shanghai Dongchuan Road 800, Shanghai
Country: CHINA
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E-mail address: aqmab@sjtu.edu.cn
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Title of the Paper: research on the mpcg algorithm applied 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: With the structure miniaturization of SF6 Circuit Breaker in three-phase-in-one-tank GIS, improvement of internal structure design and layout should be taken into account to balance the electric field intensity distribution among phases. By calculating the three-dimensional electric field intensity distribution in GIS with FEM to guide and optimize its internal structure will improve the electric field intensity distribution status among each phase or whole field domain and can avoid insulated medium breakdown due to excessiveness of local electric field intensity. 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. According to the sparse symmetric chara!
cter of coefficient matrix, the method of storing coefficient matrix effectively and rapidly is studied and new data structure is adopted. 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 design parameter for designing the circuit breaker optimum configuration in GIS.
Keywords: MPCG(Modified Preconditioned Conjugate Gradient); Electric field calculation; Three dimensional; Three-phase-in-one-tank; GIS(gas insulated switchgear); Circuit breaker; Finite element method; Sparse matrix
EXTENSION of the file: .pdf
Special (Invited) Session: application of MPCG algorithm in the complex three dimensional electric field caculation
Organizer of the Session: 599-285
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