US 10,372,089 B2 · Predicted value shaping system, control system, predicted value shaping method, control method, and predicted value shaping program

A power generation predicted value shaping system for correcting a predicted amount of required power of a target power demand obtained by predicting the target power demand for controlling an amount of power generation of a controlled power generator by feedforward control, the power generation predicted value shaping system comprising:

a predicted value acquisition unit that acquires the predicted amount of required power of the target power demand;
a result value acquisition unit that acquires a result value of the target power demand that is a previous target power demand of the controlled power generator;
and
a control value calculation unit that calculates a control value for controlling the controlled power generator by applying the result value of the target power demand and the predicted amount of required power of the target power demand to an algorithm to correct the predicted amount of required power of the target power demand, wherein the algorithm uses parameters of a control model of the controlled power generator, wherein
the parameters of the control model are Ap, Bp, and Cp which are obtained by system identification,
the control model is represented by Equation (1),
{
x
P
⁡
(
t
+
1
)
=
A
P
⁢
x
P
⁡
(
t
)
+
B
P
⁢
v
⁡
(
t
)
y
⁡
(
t
)
=
C
P
⁢
x
P
⁡
(
t
)
(
1
)
where v(t) is the control value at time t, and y(t) is an output of the controlled power generator at the time t, and the algorithm is represented by Equation (2),
{
ξ
⁡
(
t
+
1
)
=
𝒜
*
⁢
ξ
⁡
(
t
)
+
ℬ
*
⁡
(
r
^
⁡
(
t
-
1
)
-
r
⁡
(
t
-
1
)
)
v
⁡
(
t
)
=
𝒞
*
⁢
ξ
⁡
(
t
)
+
𝒟
*
⁡
(
r
^
⁡
(
t
-
1
)
-
r
⁡
(
t
-
1
)
)
+
r
^
⁡
(
t
)
(
2
)
where r^(t) is the predicted amount of required power at the time t, r^(t−1) is the previous predicted amount of required power before the time t, r(t−1) is the result value,
and
*=AP−BP(CPBP)−1CPAP
*=−BP(CPBP)−1CPAPBP+APBP
*=−(CPBP)−1CPAP
*=−(CPBP)−1CPAPBP.

141 more elements

A power generation predicted value shaping system for correcting a predicted amount of required power of a target power demand obtained by predicting the target power demand for controlling an amount of power generation of a controlled power generator by feedforward control, the power generation predicted value shaping system comprising:

a predicted value acquisition unit that acquires the predicted amount of required power of the target power demand;
a result value acquisition unit that acquires a result value of the target power demand that is a previous target power demand of the controlled object;
and a control value calculation unit that calculates a control value for controlling the controlled power generator by applying the result value of the target value and the predicted value of the target power demand to an algorithm to correct the predicted value of the target power demand, wherein the algorithm is an algorithm for correcting the predicted value of the target power demand so as to reduce influence on an output of the controlled power generator given by a previous prediction error that is a difference between the previous predicted value of the target power demand and the result value of the target power demand, wherein
the parameters of the control model are AP, BP, and Cp are obtained by system identification,
the control model is represented by Equation (1),
{
x
P
⁡
(
t
+
1
)
=
A
P
⁢
x
P
⁡
(
t
)
+
B
P
⁢
v
⁡
(
t
)
y
⁡
(
t
)
=
C
P
⁢
x
P
⁡
(
t
)
(
1
)
where v(t) is the control value at time t, and y(t) is an output of the controlled power generator at the time t, and the algorithm is represented by Equation (2),
{
ξ
⁡
(
t
+
1
)
=
𝒜
*
⁢
ξ
⁡
(
t
)
+
ℬ
*
⁡
(
r
^
⁡
(
t
-
1
)
-
r
⁡
(
t
-
1
)
)
v
⁡
(
t
)
=
𝒞
*
⁢
ξ
⁡
(
t
)
+
𝒟
*
⁡
(
r
^
⁡
(
t
-
1
)
-
r
⁡
(
t
-
1
)
)
+
r
^
⁡
(
t
)
(
2
)
where r^(t) is the predicted amount of required power at the time t, r^(t−1) is the previous predicted amount of required power before the time t, r(t−1) is the result value,
and
*=AP−BP(CPBP)−1CPAP
*=−BP(CPBP)−1CPAPBP+APBP
*=−(CPBP)−1CPAP
*=−(CPBP)−1CPAPBP.

140 more elements

A power generation predicted value shaping method for correcting a predicted amount of required power of a target power demand obtained by predicting the target power demand for controlling a controlled power generator by feedforward control, the power generation predicted value shaping method comprising:

a predicted value acquisition step of acquiring the predicted amount of required power of the target power demand;
a result value acquisition step of acquiring a result value of the target power demand that is a previous target value of the controlled power generator;
and a control value calculation step of calculating a control value for controlling the controlled power generator by applying the result value of the target power demand and the predicted amount of required power of the target power demand to an algorithm to correct the predicted amount of required power of the target power demand, wherein the algorithm uses parameters of a control model of the controlled power generator, wherein
the parameters of the control model are Ap, Bp, and Cp which are obtained by system identification,
the control model is represented by Equation (1),
{
x
P
⁡
(
t
+
1
)
=
A
P
⁢
x
P
⁡
(
t
)
+
B
P
⁢
v
⁡
(
t
)
y
⁡
(
t
)
=
C
P
⁢
x
P
⁡
(
t
)
(
1
)
where v(t) is the control value at time t, and y(t) is an output of the controlled power generator at the time t, and the algorithm is represented by Equation (2),
{
ξ
⁡
(
t
+
1
)
=
𝒜
*
⁢
ξ
⁡
(
t
)
+
ℬ
*
⁡
(
r
^
⁡
(
t
-
1
)
-
r
⁡
(
t
-
1
)
)
v
⁡
(
t
)
=
𝒞
*
⁢
ξ
⁡
(
t
)
+
𝒟
*
⁡
(
r
^
⁡
(
t
-
1
)
-
r
⁡
(
t
-
1
)
)
+
r
^
⁡
(
t
)
(
2
)
where r^(t) is the predicted amount of required power at the time t, r^(t−1) is the previous predicted amount of required power before the time t, r(t−1) is the result value,
and
*=AP−BP(CPBP)−1CPAP
*=−BP(CPBP)−1CPAPBP+APBP
*=−(CPBP)−1CPAP
*=−(CPBP)−1CPAPBP.

140 more elements

A power generation predicted value shaping method for correcting a predicted amount of required power of a target power demand obtained by predicting the target power demand for controlling a controlled power generator by feedforward control, the power generation predicted value shaping method comprising:

a predicted value acquisition step of acquiring the predicted amount of required power of the target power demand;
a result value acquisition step of acquiring a result value of the target power demand that is a previous target power demand of the controlled power generator;
and a control value calculation step of calculating a control value for controlling the controlled power generator by applying the result value of the target power demand and the predicted amount of required power of the target power demand to an algorithm to correct the predicted amount of required power of the target power demand, wherein the algorithm is an algorithm for correcting the predicted amount of required power of the target power demand so as to reduce influence on an output of the controlled power generator given by a previous prediction error that is a difference between the previous predicted value of the target power demand and the result value of the target power demand, wherein
the parameters of the control model are Ap, Bp, and Cp which are obtained by system identification,
the control model is represented by Equation (1),
{
x
P
⁡
(
t
+
1
)
=
A
P
⁢
x
P
⁡
(
t
)
+
B
P
⁢
v
⁡
(
t
)
y
⁡
(
t
)
=
C
P
⁢
x
P
⁡
(
t
)
(
1
)
where v(t) is the control value at time t, and y(t) is an output of the controlled power generator at the time t, and the algorithm is represented by Equation (2),
{
ξ
⁡
(
t
+
1
)
=
𝒜
*
⁢
ξ
⁡
(
t
)
+
ℬ
*
⁡
(
r
^
⁡
(
t
-
1
)
-
r
⁡
(
t
-
1
)
)
v
⁡
(
t
)
=
𝒞
*
⁢
ξ
⁡
(
t
)
+
𝒟
*
⁡
(
r
^
⁡
(
t
-
1
)
-
r
⁡
(
t
-
1
)
)
+
r
^
⁡
(
t
)
(
2
)
where r^(t) is the predicted amount of required power at the time t, r^(t−1) is the previous predicted amount of required power before the time t, r(t−1) is the result value,
and
*=AP−BP(CPBP)−1CPAP
*=−BP(CPBP)−1CPAPBP+APBP
*=−(CPBP)−1CPAP
*=−(CPBP)−1CPAPBP.

140 more elements

Predicted value shaping system, control system, predicted value shaping method, control method, and predicted value shaping program

Life of this patent

Predicted value shaping system, control system, predicted value shaping method, control method, and predicted value shaping program

Life of this patent

Abstract

Claims14