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    • 6. 发明授权
    • Controlling operation of a compressor to avoid surge
    • 控制压缩机的运行以避免浪涌
    • US08087870B2
    • 2012-01-03
    • US12071030
    • 2008-02-14
    • Steven S. FluckerStephen W. MooreJonathon M. MooreCaroline L. Turner
    • Steven S. FluckerStephen W. MooreJonathon M. MooreCaroline L. Turner
    • F04D27/02
    • F04D27/0284F01D17/162F02C7/057F02C9/20F04D27/0246F04D27/0261F05D2270/102
    • A compressor or fan is controlled to avoid stall, surge or flutter. The control system includes a look-up table from which is retrieved a margin-adjusted limiting value of a control parameter of the compressor, using inputs representing inlet guide vane angle (IGV), non-dimensional speed of the compressor (N/R√T), vehicle Mach number (Mn) and inlet geometry (IG). A variable stall, surge or flutter safety margin about a nominal limiting value of a control parameter is pre-established to reflect threats to the working, stall, flutter and surge lines, for example as a result of measurement inaccuracies, and from this the margin-adjusted limiting value is derived. An actual value of the control parameter is determined in real time, and the actual value is compared with the margin-adjusted limiting value. An output signal indicating stall, surge or flutter risk is generated if the actual value falls within the stall, surge or flutter safety margin.
    • 控制压缩机或风扇以避免失速,浪涌或颤动。 控制系统包括一个查找表,使用输入表示进口导叶角(IGV),压缩机的无量纲速度(N /R√)的输入来检索压缩机的控制参数的余量调节极限值 T),车辆马赫数(Mn)和入口几何(IG)。 预先建立了关于控制参数的标称极限值的可变失速,喘振或颤动安全裕度,以反映对工作,失速,颤动和喘振线路的威胁,例如由于测量不准确而导致的损失 导出了调整的极限值。 实时确定控制参数的实际值,将实际值与余量调整限制值进行比较。 如果实际值落在失速,浪涌或颤动安全裕度内,则会产生指示失速,喘振或颤动风险的输出信号。
    • 7. 发明授权
    • Method of computing AC impedance of an energy system
    • 计算能量系统交流阻抗的方法
    • US06765389B1
    • 2004-07-20
    • US10460383
    • 2003-06-12
    • Stephen W. Moore
    • Stephen W. Moore
    • G01N27416
    • G01R31/3662
    • An energy system is formed of a plurality of battery cells, and has an application associated therewith that draws power from the energy system. As the application is being used, voltage and current measurements are taken at a predetermined rate, and stored in a history table to create a series of time-based measurements. The measurements stored in the history table are then processed to compute an impedance parameter value corresponding to the AC impedance of the energy system This impedance parameter value is then stored in a memory buffer where it can be used to carry out various diagnotic and control functions.
    • 能量系统由多个电池单元形成,并且具有与其相关联的应用,其从能量系统获取电力。 随着应用的使用,以预定的速率进行电压和电流测量,并将其存储在历史表中以产生一系列基于时间的测量。 然后处理存储在历史表中的测量值,以计算对应于能量系统的AC阻抗的阻抗参数值。该阻抗参数值然后存储在存储缓冲器中,可用于执行各种诊断和控制功能。
    • 9. 发明申请
    • Controlling operation of a compressor to avoid surge
    • 控制压缩机的运行以避免浪涌
    • US20080264067A1
    • 2008-10-30
    • US12071030
    • 2008-02-14
    • Steven S. FluckerStephen W. MooreJonathon M. MooreCaroline L. Turner
    • Steven S. FluckerStephen W. MooreJonathon M. MooreCaroline L. Turner
    • F02C9/00F02C7/057
    • F04D27/0284F01D17/162F02C7/057F02C9/20F04D27/0246F04D27/0261F05D2270/102
    • A compressor or fan is controlled to avoid stall, surge or flutter. The control system includes a look-up table from which is retrieved a margin-adjusted limiting value of a control parameter of the compressor, using inputs representing inlet guide vane angle (IGV), non-dimensional speed of the compressor (N/R√T), vehicle Mach number (Mn) and inlet geometry (IG). A variable stall, surge or flutter safety margin about a nominal limiting value of a control parameter is pre-established to reflect threats to the working, stall, flutter and surge lines, for example as a result of measurement inaccuracies, and from this the margin-adjusted limiting value is derived. An actual value of the control parameter is determined in real time, and the actual value is compared with the margin-adjusted limiting value. An output signal indicating stall, surge or flutter risk is generated if the actual value falls within the stall, surge or flutter safety margin.
    • 控制压缩机或风扇以避免失速,浪涌或颤动。 控制系统包括一个查找表,使用输入表示进口导叶角(IGV),压缩机的无量纲速度(N /R√)的输入来检索压缩机的控制参数的余量调节极限值 T),车辆马赫数(Mn)和入口几何(IG)。 预先建立了关于控制参数的额定极限值的可变失速,喘振或颤动安全裕度,以反映对工作,失速,颤动和喘振线路的威胁,例如由于测量不准确而导致的损失 导出了调整的极限值。 实时确定控制参数的实际值,将实际值与余量调整限制值进行比较。 如果实际值落在失速,浪涌或颤动安全裕度内,则会产生指示失速,喘振或颤动风险的输出信号。