TOTAL ENERGY LIMITING AND CONTROLLING DEVICE, AND TOTAL ELECTRIC POWER LIMITING AND CONTROLLING DEVICE AND METHOD

• US 20120049922A1
• Filed: 08/11/2011
• Published: 03/01/2012
• Est. Priority Date: 08/25/2010
• Status: Abandoned Application

• Current Assignee: Azbil Corporation (Azbil BioVigilant Incorporated)
• Original Assignee: Yamatake Corporation
• Inventors: Tanaka, Masato, Miura, Mayumi
• Application Number:
  US13/207,743
• Publication Number:
  US 20120049922A1
• Time in Patent Office: Days
• US Class Current: 327/309
• CPC Class Codes: G05B 15/02 electric
• CPC Class Codes: G05B 2219/2642 Domotique, domestic, home control, automation, smart house

Abstract

A total electric power limiting and controlling device has a total allocated electric power inputting portion receiving information for the total allocated electric power specifying the amount of electric power used by heaters in multiple controlled loops. An electric power value obtaining portion obtains an electric power consumption value for the individual loops. Electric power limiting portions calculate an electric power surplus of the individual loops, from the electric power consumption values, and calculates an operating quantity output upper limit value for each of the loops based on the ratios of the electric power surpluses of the individual loops relative to the total electric power surplus and on the total allocated electric power. A controlling portion, provided for each loop, calculates the operating quantity, performs an upper limit process on the operating quantity, and outputs the operating quantity, after the upper limit process, to the heater of the corresponding loop.

Claims

1. A total energy limiting and controlling device comprising:

a total allocated energy inputting device receiving total allocated energy information that specifies a quantity of energy used for a control actuator of a plurality of controlled loops Ri (i=1 through n);

an energy value obtaining device obtaining an energy consumption value for each controlled loop Ri;

an energy limiting device calculating energy surplus of each controlled loop Ri from the energy consumption values and for calculating an operating quantity output upper limit value OHi for each controlled loop Ri based on the ratio of the energy surplus of each controlled loop Ri relative to the total energy surplus and on the total allocated energy; and

a controller calculating an operating quantity MVi, provided for each controlled loop Ri, through control calculations upon inputting of the setting value SPi and the control quantity PVi, for executing an upper limit process to limit the operating quantity MVI so as to be no higher than the operating quantity output upper limit value OHi, and for outputting the operating quantity MVi, after the upper limit process, to a control actuator of a corresponding controlled loop Ri;

wherein;

the operating quantity output upper limit value OHi is calculated so that the energy surpluses of the individual controlled loops Ri will approach a state of equality.

2. A total electric power limiting and controlling device comprising:

a total allocated electric power inputting device receiving total allocated electric power PW information that specifies a quantity of electric power used for a control actuator of a plurality of controlled loops Ri (i=1 through n);

an electric power value obtaining device obtaining an electric power consumption value CTi for each controlled loop Ri;

an electric power limiter calculating electric power surplus of each controlled loop Ri from the electric power consumption values CTi and for calculating an operating quantity output upper limit value OHi for each controlled loop Ri based on the ratio of the electric power surplus of each controlled loop Ri relative to the total electric power surplus and on the total allocated electric power PW; and

a controller an operating quantity MVi, provided for each controlled loop Ri, through control calculations upon inputting of a setting value SPi and a control quantity PVi, for executing an upper limit process to limit the operating quantity MVi so as to be no higher than the operating quantity output upper limit value OHi, and for outputting the operating quantity MVi, after the upper limit process, to a control actuator of a corresponding controlled loop Ri;

wherein;

the operating quantity output upper limit value OHi is calculated so that the electric power surpluses of the individual controlled loops Ri will approach a state of equality.

3. A total electric power limiting and controlling device comprising:

a total allocated electric power inputting device receiving total allocated electric power PW information that specifies a quantity of electric power used for a control actuator of a plurality of controlled loops Ri (i=1 through n);

an electric power value obtaining device obtaining an electric power consumption value CTi for each controlled loop Ri;

a maximum output electric power value obtaining device obtaining a maximum output electric power consumption value CTmi for each controlled loop Ri;

an electric power surplus calculator calculating an electric power surplus CTri for each controlled loop Ri from the maximum output electric power consumption values CTmi and the electric power consumption values CTi;

a maximum total electric power calculator calculating a maximum total electric power BX, which is the sum of the maximum output electric power consumption values CTmi of the individual controlled loops Ri;

a total electric power surplus calculator calculating a total electric power surplus RW that is a sum of the electric power surpluses CTri of the individual controlled loops Ri;

a total electric power consumption calculator calculating a total electric power consumption SW, which is the total electric power quantity that should be consumed, from the maximum total electric power BX and the total allocated electric power PW;

an electric power consumption allocated quantity calculator calculating, from the electric power surpluses CTri, the total electric power surplus RW, and the total electric power consumption SW, an electric power consumption allocated quantity CTsi that is an electric power quantity that should be consumed by an individual controlled loop Ri;

an output upper limit calculator calculating an operating quantity output upper limit OHi for an individual controlled loop Ri from the electric power consumption allocated quantity CTsi and the maximum output electric power consumption value CTmi; and

a controller calculating an operating quantity MVi, provided for each controlled loop Ri, through control calculations upon inputting of a setting value SPi and a control quantity PVi, for executing an upper limit process to limit the operating quantity MVi so as to be no higher than the operating quantity output upper limit value OHi, and for outputting the operating quantity MVi, after the upper limit process, to a control actuator of a corresponding controlled loop Ri.

4. A total electric power limiting and controlling device comprising:

a total allocated electric power inputting device receiving total allocated electric power PW information that specifies a quantity of electric power used for a control actuator of a plurality of controlled loops Ri (i=1 through n);

an electric power value obtaining device obtaining an electric power consumption value CTi for each controlled loop Ri;

a maximum output electric power value obtaining device obtaining a maximum output electric power consumption value CTmi for each controlled loop Ri;

a total electric power use calculator calculating a total electric power use QW that is a sum of the electric power consumption values CTi of the individual controlled loops Ri;

an electric power use allocated quantity calculator calculating, from the total allocated electric power PW, the electric power consumption values CTi, and the total electric power use QW, electric power use allocated quantities CTqi that are allocated to each of the controlled loops Ri;

an output upper limit calculator calculating an operating quantity output upper limit OHi for an individual controlled loop Ri from the maximum output electric power consumption value CTmi and the electric power use allocated quantity CTqi; and

a controller calculating an operating quantity MVi, provided for each controlled loop Ri, through control calculations upon inputting of a setting value SPi and a control quantity PVi, for executing an upper limit process to limit the operating quantity MVi so as to be no higher than the operating quantity output upper limit value OHi, and for outputting the operating quantity MVi, after the upper limit process, to a control actuator of a corresponding controlled loop Ri.

5. A total energy limiting and controlling method comprising:

a total allocated energy inputting step receiving total allocated energy information that specifies a quantity of energy used for a control actuator of a plurality of controlled loops Ri (i=1 through n);

an energy value obtaining step obtaining an energy consumption value for each controlled loop Ri;

an energy limiting step calculating energy surplus of each controlled loop Ri from the energy consumption values and for calculating an operating quantity output upper limit value OHi for each controlled loop Ri based on the ratio of the energy surplus of each controlled loop Ri relative to the total energy surplus and on the total allocated energy; and

a controlling step calculating an operating quantity MVi through control calculations upon inputting of the setting value SPi and the control quantity PVi, for executing an upper limit process to limit the operating quantity MVI so as to be no higher than the operating quantity output upper limit value OHi, and to output the operating quantity MVi, after the upper limit process, to a control actuator of a corresponding controlled loop Ri;

wherein;

the operating quantity output upper limit value OHi is calculated so that the energy surpluses of the individual controlled loops Ri will approach a state of equality.

6. A total electric power limiting and controlling method comprising:

a total allocated electric power inputting step receiving total allocated electric power PW information that specifies a quantity of electric power used for a control actuator of a plurality of controlled loops Ri (i=1 through n);

an electric power value obtaining step obtaining an electric power consumption value CTi for each controlled loop Ri;

an electric power limiting step calculating electric power surplus of each controlled loop Ri from the electric power consumption values CTi and for calculating an operating quantity output upper limit value OHi for each controlled loop Ri based on the ratio of the electric power surplus of each controlled loop Ri relative to the total electric power surplus and on the total allocated electric power PW; and

a controlling step calculating an operating quantity MVi through control calculations upon inputting of the setting value SPi and the control quantity PVi, for executing an upper limit process to limit the operating quantity MVI so as to be no higher than the operating quantity output upper limit value OHi, and to output the operating quantity MVi, after the upper limit process, to a control actuator of a corresponding controlled loop Ri;

wherein;

the operating quantity output upper limit value OHi is calculated so that the electric power surpluses of the individual controlled loops Ri will approach a state of equality.

7. A total electric power limiting and controlling method comprising:

a total allocated electric power inputting step receiving total allocated electric power PW information that specifies a quantity of electric power used for a control actuator of a plurality of controlled loops Ri (i=1 through n);

an electric power value obtaining step obtaining an electric power consumption value CTi for each controlled loop Ri;

a maximum output electric power value obtaining step obtaining a maximum output electric power consumption value CTmi for each controlled loop Ri;

an electric power surplus calculating step calculating an electric power surplus CTri for each controlled loop Ri from the maximum output electric power consumption values CTmi and the electric power consumption values CTi;

a maximum total electric power calculating step calculating a maximum total electric power BX, which is the sum of the maximum output electric power consumption values CTmi of the individual controlled loops Ri;

a total electric power surplus calculating step calculating a total electric power surplus RW that is a sum of the electric power surpluses CTri of the individual controlled loops Ri;

a total electric power consumption calculating step calculating a total electric power consumption SW, which is the total electric power quantity that should be consumed, from the maximum total electric power BX and the total allocated electric power PW;

an electric power consumption allocated quantity calculating step calculating, from the electric power surpluses CTri, the total electric power surplus RW, and the total electric power consumption SW, an electric power consumption allocated quantity CTsi that is an electric power quantity that should be consumed by an individual controlled loop Ri;

an output upper limit calculating step calculating an operating quantity output upper limit OHi for an individual controlled loop Ri from the electric power consumption allocated quantity CTsi and the maximum output electric power consumption value CTmi; and

a controlling step calculating an operating quantity MVi through control calculations upon inputting of the setting value SPi and the control quantity PVi, for executing an upper limit process to limit the operating quantity MVI so as to be no higher than the operating quantity output upper limit value OHi, and to output the operating quantity MVi, after the upper limit process, to a control actuator of a corresponding controlled loop Ri.

8. A total electric power limiting and controlling method comprising:

a total allocated electric power inputting step receiving total allocated electric power PW information that specifies a quantity of electric power used for a control actuator of a plurality of controlled loops Ri (i=1 through n);

an electric power value obtaining step obtaining an electric power consumption value CTi for each controlled loop Ri;

a maximum output electric power value obtaining step obtaining a maximum output electric power consumption value CTmi for each controlled loop Ri;

a total electric power use calculating step calculating a total electric power use QW that is a sum of the electric power consumption values CTi of the individual controlled loops Ri;

an electric power use allocated quantity calculating step calculating, from the total allocated electric power PW, the electric power consumption values CTi, and the total electric power use QW, electric power use allocated quantities CTqi that are allocated to each of the controlled loops Ri;

an output upper limit calculating step calculating an operating quantity output upper limit OHi for an individual controlled loop Ri from the maximum output electric power consumption value CTmi and the electric power use allocated quantity CTqi; and

a controlling step calculating an operating quantity MVi through control calculations upon inputting of the setting value SPi and the control quantity PVi, for executing an upper limit process to limit the operating quantity MVI so as to be no higher than the operating quantity output upper limit value OHi, and to output the operating quantity MVi, after the upper limit process, to a control actuator of a corresponding controlled loop Ri.