Saturation effects on the steady-state stability limit of turbine-generators
The stability limit to the under-excited operation of synchronous generators is expressed in terms of two-axis reactances. These reactances have in the past generally been those applicable for rated load or corresponding with the short-circuit ratio. Modern large solid-rotor generators are heavily s...
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| Veröffentlicht in: | IEEE transactions on energy conversion 1999, Vol.14 (2), p.133-138 |
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| creator | Arjona L., M.A. Macdonald, D.C. |
| description | The stability limit to the under-excited operation of synchronous generators is expressed in terms of two-axis reactances. These reactances have in the past generally been those applicable for rated load or corresponding with the short-circuit ratio. Modern large solid-rotor generators are heavily saturated and the use of these fixed reactances introduces error. Reactances appropriate to limiting operation are obtained here together with their derivatives with respect to load angle to give the limit. New limits for two large machines are presented. The new limits are more restrictive than when rated-load reactances are used but less restrictive than using those associated with the short-circuit ratio. |
| doi_str_mv | 10.1109/60.766957 |
| format | Article |
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These reactances have in the past generally been those applicable for rated load or corresponding with the short-circuit ratio. Modern large solid-rotor generators are heavily saturated and the use of these fixed reactances introduces error. Reactances appropriate to limiting operation are obtained here together with their derivatives with respect to load angle to give the limit. New limits for two large machines are presented. The new limits are more restrictive than when rated-load reactances are used but less restrictive than using those associated with the short-circuit ratio.</description><identifier>ISSN: 0885-8969</identifier><identifier>EISSN: 1558-0059</identifier><identifier>DOI: 10.1109/60.766957</identifier><identifier>CODEN: ITCNE4</identifier><language>eng</language><publisher>New York, NY: IEEE</publisher><subject>Applied sciences ; Constraining ; Derivatives ; Direct power generation ; Electrical engineering. 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Electrical power engineering</subject><subject>Electrical machines</subject><subject>Errors</subject><subject>Exact sciences and technology</subject><subject>Finite element methods</subject><subject>Generators</subject><subject>Heating</subject><subject>Power generation</subject><subject>Reactive power</subject><subject>Rotors</subject><subject>Saturation</subject><subject>Stability</subject><subject>Stators</subject><subject>Steady-state</subject><subject>Synchronous</subject><subject>Turbines</subject><subject>Voltage</subject><issn>0885-8969</issn><issn>1558-0059</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1999</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpFkM1LAzEQxYMoWKsHr572IIiH1MlukiZHKX5BwYN6XpJ0opHtbk3SQ_97U7boaWaY33s8HiGXDGaMgb6TMJtLqcX8iEyYEIoCCH1MJqCUoEpLfUrOUvoGYFzUbEKWbyZvo8lh6Cv0Hl1OVVnzF1Ypo1ntaMom7w9jQxfyrurCOuRq8FXR2dAj_cQei8MQ0zk58aZLeHGYU_Lx-PC-eKbL16eXxf2SOg51psxrs2I1b9BJ6ZlmJZcCB1oorZS1CqxzWNJIi8gVKm0EB2UVA5Dc8mZKbkbfTRx-tphyuw7JYdeZHodtajXTutEN7MnbkXRxSCmibzcxrE3ctQzafWGthHYsrLDXB1eTnOl8NL0L6V-gmprPm4JdjVhAxL_vweMXJQZy0Q</recordid><startdate>1999</startdate><enddate>1999</enddate><creator>Arjona L., M.A.</creator><creator>Macdonald, D.C.</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><scope>RIA</scope><scope>RIE</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7TB</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>KR7</scope><scope>L7M</scope></search><sort><creationdate>1999</creationdate><title>Saturation effects on the steady-state stability limit of turbine-generators</title><author>Arjona L., M.A. ; Macdonald, D.C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c402t-1f9ad1243ec66f19189680c0958988bb80bcceeff6bee48e89a5408b810064b43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1999</creationdate><topic>Applied sciences</topic><topic>Constraining</topic><topic>Derivatives</topic><topic>Direct power generation</topic><topic>Electrical engineering. 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These reactances have in the past generally been those applicable for rated load or corresponding with the short-circuit ratio. Modern large solid-rotor generators are heavily saturated and the use of these fixed reactances introduces error. Reactances appropriate to limiting operation are obtained here together with their derivatives with respect to load angle to give the limit. New limits for two large machines are presented. The new limits are more restrictive than when rated-load reactances are used but less restrictive than using those associated with the short-circuit ratio.</abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/60.766957</doi><tpages>6</tpages></addata></record> |
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| identifier | ISSN: 0885-8969 |
| ispartof | IEEE transactions on energy conversion, 1999, Vol.14 (2), p.133-138 |
| issn | 0885-8969 1558-0059 |
| language | eng |
| recordid | cdi_ieee_primary_766957 |
| source | IEEE Electronic Library (IEL) |
| subjects | Applied sciences Constraining Derivatives Direct power generation Electrical engineering. Electrical power engineering Electrical machines Errors Exact sciences and technology Finite element methods Generators Heating Power generation Reactive power Rotors Saturation Stability Stators Steady-state Synchronous Turbines Voltage |
| title | Saturation effects on the steady-state stability limit of turbine-generators |
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