发明名称 |
CONTROLLING AN ELECTRICAL CONVERTER |
摘要 |
An exemplary method for controlling an electrical converter includes receiving an actual electrical quantity relating to the electrical converter and a reference quantity; determining a future state of the electrical converter by minimizing an objective function based on the actual electrical quantity and the reference quantity as initial optimization variables; and determining the next switching state for the electrical converter from the future state of the electrical converter. The objective function is iteratively optimized by: calculating optimized unconstrained optimization variables based on computing a gradient of the objective function with respect to optimization variables; and calculating optimization variables for a next iteration step by projecting the unconstrained optimization variables on constraints. The computation of the gradient and/or the projection is performed in parallel in more than one computing unit. |
申请公布号 |
US2015249381(A1) |
申请公布日期 |
2015.09.03 |
申请号 |
US201514712444 |
申请日期 |
2015.05.14 |
申请人 |
ABB Technology AG |
发明人 |
ZANARINI Alessandro;PEYRL Helfried;BOECHAT Marc-Alexandre;BESSELMANN Thomas |
分类号 |
H02M1/08 |
主分类号 |
H02M1/08 |
代理机构 |
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代理人 |
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主权项 |
1. A method for controlling an electrical converter, the method comprising:
receiving an actual electrical quantity relating to the electrical converter and a reference quantity; determining a possible future state of the electrical converter by minimizing an objective function based on the actual electrical quantity and the reference quantity; and determining the next switching state for the electrical converter from the possible future state of the electrical converter; wherein the objective function is iteratively optimized by:
calculating optimized unconstrained optimization variables based on computing a gradient of the objective function with respect to optimization variables;calculating optimization variables for a next iteration step by projecting unconstrained optimization variables on constraints;wherein the computation of the gradient and/or the projection is performed in parallel in more than one computing unit. |
地址 |
Zurich CH |