METHOD AND SYSTEM FOR REDUNDANT TURBINE CONTROL
First Claim
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1. A method for redundant control, comprising:
- classifying a first control unit as a primary;
classifying a second control unit as a secondary;
receiving, in parallel, monitored data at both the primary and secondary control units;
periodically calculating state information in the primary control unit based on the received monitored data and any previously calculated state information, wherein each period is a computation cycle;
communicating the state information from the primary to the secondary control unit after each computation cycle;
at the secondary control unit, storing the state information into memory; and
sending control messages from the primary control unit to the controlled .
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Abstract
A method and system for redundant turbine control is provided. The method includes classifying first and second turbine control units (TCUs) as a primary and secondary TCUs and receiving, in parallel, monitored data from a wind turbine at both the primary TCU and secondary TCU. The primary TCU periodically calculates state information based on received monitored data and any previously calculated state information, and communicates the state information from the primary TCU to the secondary TCU after each computation cycle. The secondary TCU stores the state information into memory while the primary TCU sends control messages to the wind turbine.
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Citations
21 Claims
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1. A method for redundant control, comprising:
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classifying a first control unit as a primary; classifying a second control unit as a secondary; receiving, in parallel, monitored data at both the primary and secondary control units; periodically calculating state information in the primary control unit based on the received monitored data and any previously calculated state information, wherein each period is a computation cycle; communicating the state information from the primary to the secondary control unit after each computation cycle; at the secondary control unit, storing the state information into memory; and sending control messages from the primary control unit to the controlled . - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for redundant control, the system comprising:
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a wind turbine; a first and a second turbine control unit (TCU), each TCU comprising a processor and memory; and a shared interface between the wind turbine and the first and second TCUs operative to communicate analog or digital data from the wind turbine to the first and second TCUs in parallel, wherein the first TCU is classified as a primary TCU and the second TCU is classified as a secondary TCU and the primary TCU is operative to; periodically calculate state information based on received monitored data received from the wind turbine and any previously calculated state information; communicate the calculated state information from he primary TCU to the secondary TCU; and send control messages to the wind turbine, wherein the secondary TCU is operative to store calculated state information received from the primary TCU into memory. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A system for redundant turbine control, comprising:
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a wind turbine; a first and a second turbine control unit (TCU), each TCU comprising; a processor, dual port memory, and direct memory access (DMA) controller; and a shared interface between the wind turbine and the first and second TCUs. - View Dependent Claims (20, 21)
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Specification