公开(公告)号：US20160098377A1

公开(公告)日：2016-04-07

申请号：US14967779

申请日：2015-12-14

Applicant: FUJITSU LIMITED

Inventor： Yuhei UMEDA ,  Tsugito MARUYAMA ,  Hirokazu ANAI

IPC: G06F17/14 ,  G06F17/16

CPC classification number: G06F17/14 ,  G05B13/042 ,  G05B13/048 ,  G06F17/10 ,  G06F17/16 ,  G06F17/5009

Abstract: In this disclosure, equations to be solved in the model predictive control are transformed by using an off-line algebraic simplification method into a matrix operational expression representing a product of a coefficient matrix and a vector regarding solution inputs within a control horizon is equal to a function vector regarding target values of output states and the output states. The size of the coefficient matrix is reduced compared with the conventional matrix. Then, the matrix operational expression is solved in an online plant control apparatus with present output states and present target values of the output stats of a plant to be controlled, by the direct method, to output the solution to the plant.

公开(公告)号：US20150025865A1

公开(公告)日：2015-01-22

申请号：US14503442

申请日：2014-10-01

Applicant: FUJITSU LIMITED

Inventor： Yuhei UMEDA ,  Tsugito MARUYAMA ,  Hirokazu ANAI

IPC: G05B13/04 ,  G06F17/10 ,  G06F17/50

CPC classification number: G06F17/14 ,  G05B13/042 ,  G05B13/048 ,  G06F17/10 ,  G06F17/16 ,  G06F17/5009

Abstract: In this disclosure, equations to be solved in the model predictive control are transformed by using an off-line algebraic simplification method into a matrix operational expression representing a product of a coefficient matrix and a vector regarding solution inputs within a control horizon is equal to a function vector regarding target values of output states and the output states. The size of the coefficient matrix is reduced compared with the conventional matrix. Then, the matrix operational expression is solved in an online plant control apparatus with present output states and present target values of the output stats of a plant to be controlled, by the direct method, to output the solution to the plant.

Abstract translation: 在本公开中，通过使用离线代数简化方法将要在模型预测控制中求解的等式变换成表示系数矩阵和关于控制范围内的解输入的向量的乘积的矩阵运算表达式等于 关于输出状态和输出状态的目标值的函数向量。 与常规矩阵相比，系数矩阵的大小减小。 然后，通过直接方法，在具有当前输出状态和要控制的设备的输出状态的当前目标值的在线工厂控制装置中解决矩阵运算表达式，以将该解决方案输出到工厂。

公开(公告)号：US20140232365A1

公开(公告)日：2014-08-21

申请号：US14095203

申请日：2013-12-03

Applicant: Fujitsu Limited

Inventor： Tomotake SASAKI ,  Tsugito MARUYAMA ,  Yu YONEZAWA ,  Yoshiyasu NAKASHIMA

IPC: H02M3/156

CPC classification number: H02M3/156 ,  H02M2001/0019 ,  H02M2001/0025 ,  H02M2001/0032 ,  H02M2003/1566

Abstract: A control device includes: a power supply circuit that controls output voltage using a switching element; a generation unit that generates a reference signal on the basis of the output voltage from the power supply circuit; a PWM unit that generates a PWM signal that is output to the switching element by comparing the reference signal with a carrier signal; and a switching unit that switches a frequency of the carrier signal by changing amplitude of the carrier signal, wherein the generation unit generates the reference signal on the basis of the frequency.

Abstract translation: 控制装置包括：使用开关元件控制输出电压的电源电路; 生成单元，其基于来自电源电路的输出电压生成参考信号; PWM单元，其通过将所述参考信号与载波信号进行比较来产生输出到所述开关元件的PWM信号; 以及切换单元，通过改变载波信号的幅度来切换载波信号的频率，其中生成单元基于频率生成参考信号。