CN102510101B - Combined heat and power dispatching system comprising back-pressure type cogeneration unit and dispatching method thereof - Google Patents

Abstract

The invention discloses a combined heat and power dispatching system comprising a back-pressure type cogeneration unit and a dispatching method thereof. The system comprises a cogeneration unit, an air conditioner heat pump, an electric energy meter, a radiator, a heat-consumption gauge, a second remote centralized controller and a dispatching control device, wherein the second remote centralized controller is used for collecting the power consumption data detected by the electric energy meter and the heating heat-consumption data detected by the heat-consumption gauge, and the dispatching control device is used for controlling the running of the cogeneration unit, the air conditioner heat pump and the radiator through a first, second and third remote centralized controllers. A pipeline distance from a user to a heat source is collected and the pipeline distance is utilized to reasonably dispatch the cogeneration unit, which originally runs independently, in a combined form, so that an error between a load value practically required by the system and an electric load predicted value is greatly reduced, the running and the planning of the system are boosted and the dispatching difficulty is reduced.

Description

The combined heat and power dispatching patcher and the method that comprise the back pressure type cogeneration units

Technical field

The present invention relates to city integrated energy supply system, relate in particular to a kind of combined heat and power dispatching patcher and method that comprises the back pressure type cogeneration units.

Background technology

Load forecast is the important component part of power system planning, is also the basis of Economical Operation of Power Systems, and it is all of crucial importance to power system planning and operation.

Load forecast comprises the implication of two aspects, in order to refer to be arranged on the various power consumption equipments at the users places such as government offices, enterprise, resident, and also can be in order to describe the numerical value of the quantity of electricity that above-mentioned power consumption equipment consumes.

Load forecast is to take a series of prediction work that electric load carries out as object.From forecasting object, load forecast comprises to the prediction of following power demand (power) with to the prediction of following power consumption (energy) and to the prediction of load curve.Its groundwork is to distribute and spatial distribution the time of predict future electric load, for power system planning and operation provide reliable decision-making foundation.

But there is certain error in the load value of Electric Load Forecasting measured value and system actual needs, reduce this error and be conducive to system operation and planning, reduce the scheduling difficulty.

Summary of the invention

Technical problem to be solved by this invention is a kind of combined heat and power dispatching patcher and method that comprises the back pressure type cogeneration units, by dispatching patcher of the present invention and dispatching method thereof, can greatly reduce the load value of system actual needs and the error between the Electric Load Forecasting measured value, to be conducive to system operation and planning, reduce the scheduling difficulty.

To achieve these goals, the present invention adopts following technical scheme:

A kind of combined heat and power dispatching patcher that comprises the back pressure type cogeneration units comprises: for the back pressure type cogeneration units of output electric power and heating hot water; The air conditioner heat pump in parallel with described back pressure type cogeneration units, the electric energy that described air conditioner heat pump is produced by described back pressure type cogeneration units drives and generation heating heat energy; Control the air conditioner heat pump remote control switch of air conditioner heat pump; Gather the ammeter of the non-heating electricity consumption of user; With the hot-water type heating radiator that described back pressure type cogeneration units is connected, the hot water that described back pressure type cogeneration units is produced flows in described hot-water type heating radiator and produces heating heat energy; Hot-water type heating radiator hot water consumes gauge table, the data that consume for detection of described hot-water type heating radiator hot water; Control the hot-water type heating radiator flowing water valve remote control switch of hot-water type heating radiator; The first long-distance centralized control device, the heating that gathers the back pressure type cogeneration units exert oneself hot water flow and generated output electric weight, and send exert oneself hot water flow and generated output electric quantity data of this heating to the integrated dispatch control device; The second long-distance centralized control device, be stored with the range information between hot-water type heating radiator and back pressure type cogeneration units, gather the non-heating power consumption data that the ammeter of the non-heating electricity consumption of described user detects, gather hot-water type heating radiator hot water and consume the hot water consumption data that gauge table detects, then between above-mentioned non-heating power consumption data and hot water consumption data and hot-water type heating radiator and back pressure type cogeneration units, range data sends the integrated dispatch control device to; The integrated dispatch control device, calculates and generates generated output and hot the exerting oneself and the user not power consumption of air conditioner heat pump in the same time and the control signal of heating load of final scheduling controlling back pressure type cogeneration units according to distance between hot-water type heating radiator and back pressure type cogeneration units; After described the first long-distance centralized control device receives the scheduling control signal that the integrated dispatch control device sends, control the control final controlling element action of back pressure type cogeneration units with this scheduling control signal; After described the second long-distance centralized control device receives the scheduling control signal that the integrated dispatch control device sends, with this scheduling control signal, drive respectively air conditioner heat pump remote control switch, hot-water type heating radiator flowing water valve remote control switch to carry out the switching on and shutting down action.

Described hot-water type heating radiator flowing water valve remote control switch, be coupled with remote control mode and described integrated dispatch control device by the second long-distance centralized control device; Described air conditioner heat pump remote control switch, be coupled with remote control mode and described integrated dispatch control device by the second long-distance centralized control device; The final controlling element of described back pressure type cogeneration units, be coupled with remote control mode and described integrated dispatch control device by the first long-distance centralized control device; The final controlling element of described back pressure type cogeneration units is according to the scheduling control signal obtained, and controls connected coal-fired material inlet valve, Boiler Steam admission valve, heating steam draw gas valve and generating steam flow valve event;

Described integrated dispatch control device comprises: the heating that receives the back pressure type cogeneration units that the first long-distance centralized control device sends the first data receiver unit of hot water flow and generated output electric weight of exerting oneself; Receive the second data receiver unit of power consumption data, heating hot water consumption data and user pipe range information that the non-heating ammeter of user that the second long-distance centralized control device sends detects; The data decoder that the described user non-heating power consumption data that receive and heating hot water consumption data are decoded; The data storage that described decoded user non-heating power consumption data and heating hot water consumption data are stored; The data of storing in the data memory are calculated and are generated to the scheduling control signal computing unit of scheduling control signal; The signal conversion coding device that described scheduling control signal is encoded; And the scheduling control signal after coding is passed to respectively to the transmitting element of the first long-distance centralized control device and the second long-distance centralized control device;

Described back pressure type cogeneration units is controlled final controlling element and is comprised scheduling control signal transmitting-receiving code storage unit, drive circuit and mechanical gear control device, described scheduling control signal generates the instruction of back pressure type cogeneration units scheduling controlling after scheduling control signal transmitting-receiving code storage unit decodes, this control command drags signal Crush trigger gear control device through the overdrive circuit output power, and the coal-fired material inlet valve that the mechanical gear control device is controlled coal-fired thermal power coproduction unit again moves, heating steam draws gas valve event and generating steam flow valve event;

Described integrated dispatch control device is connected with the cloud computing service system by power optical fiber, and drives the cloud computing service system-computed, to obtain scheduling control signal; Described integrated dispatch control device receives by power optical fiber the scheduling control signal that the cloud computing service system-computed obtains, and then via power cable or wireless transmission method, issues this scheduling control signal to the first long-distance centralized control device and the second long-distance centralized control device;

Described the second long-distance centralized control device comprises the non-heating ammeter of user pulse counter, heating hot water flow pulse counter, pulse-code transducer, the metering signal amplifying emission device connected successively, and interconnective control signal Rcv decoder and control signal remote control transmitter; The non-heating ammeter of user pulse counter is connected with the non-heating ammeter of user, and the power consumption data that the non-heating ammeter of user pulse counter obtains detection are sent to the integrated dispatch control device after pulse-code transducer and the processing of metering signal amplifying emission device; Heating hot water flow pulse counter connects hot-water type heating radiator hot water and consumes gauge table, consume the heating data on flows of gauge table for detection of hot-water type heating radiator hot water, the heating data on flows that heating hot water flow pulse counter obtains detection is sent to the integrated dispatch control device after pulse-code transducer and the processing of metering signal amplifying emission device; The control signal Rcv decoder, the scheduling control signal that reception integrated dispatch control device sends is also decoded, and then by the control signal remote control transmitter, sends to air conditioner heat pump remote control switch, hot-water type heating radiator flowing water valve remote control switch to carry out the switching on and shutting down action control signal;

The thermal inertia time data that described the second long-distance centralized control device is also inputted for gathering the user, and send these data to the integrated dispatch control device;

A kind of dispatching method that comprises the combined heat and power dispatching patcher of back pressure type cogeneration units comprises the following steps:

1) measure following data: at interval of Δ T period measurement once, wherein, Δ T is the sampling period, and sampling number is T, and T is natural number

1.1) the measurement supply side: the generated output P that gathers back pressure type cogeneration units (A) _cHPand the heat H that exerts oneself (t) _cHP(t);

1.2) user's side:

(a) N user's hot-water type heating radiator apart from the pipeline of back pressure type cogeneration units A apart from S _i;

(b) N user's non-heating power consumption P _i(t);

(c) the heat consumption H of N user's hot-water type heating radiator _i(t);

(d) N user's air conditioner heat pump installed capacity P _i ^eHP;

(e) the thermal inertia time T of N user's input _i;

2) calculate:

2.1) calculate the total non-heating power consumption of all users

2.2) according to 2.1) and in the total power consumption P of user that calculates _sum(t) utilize statistical analysis technique to calculate the electric load P that dopes a period of time _load(t); According to 1.1) heat of the back pressure type cogeneration units (A) that the gathers H that exerts oneself _cHP(t), the heat of the back pressure type cogeneration units (A) of the predict future a period of time H that exerts oneself _cHP(t); According to 1.1) the generated output P of the back pressure type cogeneration units (A) that gathers _cHP(t), the generated output P of the back pressure type cogeneration units (A) of predict future a period of time _cHP(t);

2.3) according between hot-water type heating radiator (110) and back pressure type cogeneration units (A), apart from Si, all users being divided into to the L group, L is natural number, then obtains respectively the total heating load H of all users in each group _load(l)=∑ H _i(t, l) and air conditioner heat pump capacity P _eHP(l)=∑ P _i ^eHP(l), H _i(t, l) is that l group hot-water type heating radiator is at the t heating load in the moment, P _i ^eHP(l) be the heat pump capacity of l group hot-water type heating radiator, wherein user packet method is: at first calculate the equivalent distances between hot-water type heating radiator and back pressure type cogeneration units

v be hot water at ducted flow velocity, then right

round and obtain s _i, then, will there is identical s _ithe user be divided into same group, wherein, s _i=l, l is the l group in the L grouping;

2.4) according to above-mentioned calculating and each parameter iteration of doping calculate regulate after back pressure type cogeneration units generated output p _cHPand the heat h that exerts oneself (t) _cHP(t), user air conditioner heat pump power consumption p in the same time not _eHP(t, l) and heating load h _eHP(t, l).

Back pressure type cogeneration units generated output p after described adjusting _cHPand the heat h that exerts oneself (t) _cHP(t), user air conditioner heat pump power consumption p in the same time not _eHP(t, l) and heating load h _eHPthe computational methods of (t, l) are: combine that following formula (1)～(11) can be learnt in the situation that Δ p minimum, back pressure type cogeneration units generated output p after regulating _cHPand the heat h that exerts oneself (t) _cHPand user air conditioner heat pump power consumption p in the same time not (t) _eHP(t, l) and heating load h _eHP(t, l):

(A) establish target function

$\mathrm{\Δp}=\sqrt{\underset{t=T+1}{\overset{2T}{\mathrm{\Σ}}}{(p_{\mathrm{load}}\left(t\right)-P_{\mathrm{need}}\left(t\right))}^2/(T+1)}---\left(1\right)$

Wherein, Δ p is the standard deviation of equivalent power load after regulating and target load;

P _load(t) be equivalent power load after regulating, the MW of unit;

P _need(t) be target load, the MW of unit;

Equivalent load after electric load is followed the tracks of is defined as follows:

p _load(t)=P _load(t)-(p _CHP(t)-P _CHP(t))+p _EHPs(t) （2）

Wherein, p _load(t) be equivalent power load after regulating, the MW of unit;

P _load(t) be step 2.2) the middle electric load of predicting, the MW of unit;

P _cHP(t) for regulating the generated output of rear back pressure type cogeneration units A, the MW of unit;

P _cHP(t) be step 2.2) in the generated output of back pressure type cogeneration units A of prediction, the MW of unit;

P _eHPs(t) power consumption of all user's heat pumps while being t, the MW of unit;

(B) establish constraint equation

Heat load balance equation: Δ h (t)=| H _cHP(t)-h _cHP(t) | (3)

$\mathrm{\Δh}\left(t\right)=\underset{l=0}{\overset{L}{\mathrm{\Σ}}}{h}_{\mathrm{EHP}}(t+l,l)(T\≤t+l\≤2T)---\left(4\right)$

Wherein, Δ h (t) means the power of t period back pressure type cogeneration units hot water heating deficiency, the MW of unit;

H _cHPfor the back pressure type cogeneration units heating heat of prediction is exerted oneself, the MW of unit;

H _cHP(t) for back pressure type cogeneration units heating heat after regulating, exert oneself, the MW of unit;

H _eHP(t+l, l) is the t+l heating power sum of l group user heat pump constantly, the MW of unit;

The constraint of back pressure type cogeneration units:

The generated output lower limit:

$p_{\mathrm{CHE}}^{\min }\left(t\right)=90\%\·P_{\mathrm{CHP}}---\left(5\right)$

The generated output upper limit:

$p_{\mathrm{CHE}}^{\max }\left(t\right)=P_{\mathrm{CHP}};---\left(6\right)$

The generated output restriction:

$p_{\mathrm{CHP}}^{\min }\left(t\right)<p_{\mathrm{CHP}}\left(t\right)\&le;p_{\mathrm{CHP}}^{\max }\left(t\right)---\left(7\right)$

Cogeneration of heat and power thermoelectricity is than retraining:

h _CHP(t)＝RDB·p _CHP(t)； (8)

${\mathrm{\&eta;}}_{\mathrm{CHP}}\left(t\right)=\frac{h_{\mathrm{CHP}}\left(t\right)+p_{\mathrm{CHP}}\left(t\right)}{f_{\mathrm{CHP}}\left(t\right)}---\left(9\right)$

In above-mentioned formula (5)～(9), P _cHPfor the specified generated output of back pressure type cogeneration units;

for regulating the minimum generated output of rear back pressure type cogeneration units; p _cHP(t) be back pressure type cogeneration units generated output after regulating;

for regulating rear back pressure type cogeneration units maximum generation, exert oneself; RDB is back pressure type cogeneration units thermoelectricity ratio; η _cHP(t) be back pressure type cogeneration units efficiency, f _cHP(t) for regulating the power energy consumption of rear back pressure type cogeneration units, the MW of unit;

The constraint of user's side heat pump:

Thermoelectricity is than constraint: h _eHP(t, l)=COP _eHPp _eHP(t, l) (10)

The heat pump upper limit: the 0≤p that exerts oneself _eHP(t, l)≤min (P _eHP(l), H _load(l)/COP _eHP) (11)

Wherein, h _eHP(t, l) is the t heating power sum of l group user heat pump constantly, the MW of unit;

COP _eHPfor performance coefficient of heat pump;

P _eHP(t, l) is the t power consumption sum of l group user heat pump constantly, the MW of unit;

The air conditioner heat pump power consumption of all user's groups:

$p_{\mathrm{EHPs}}\left(t\right)=\underset{l=0}{\overset{L}{\mathrm{\&Sigma;}}}{p}_{\mathrm{EHP}}(t,l).$

With respect to prior art, beneficial effect of the present invention is: the present invention utilizes the pipeline distance of user to thermal source, fuel consumption, generated output and the heating of regulating cogeneration units according to the demand of terminal use's load energy consumption exerted oneself, the electric power consumption of terminal use's air-conditioning heat pump heating, and the heating amount of terminal use's radiator, thereby greatly reduce the load value of system actual needs and the error between the Electric Load Forecasting measured value, to be conducive to system operation and planning, reduce the scheduling difficulty.

The accompanying drawing explanation

The structured flowchart that Fig. 1 is combined heat and power dispatching patcher of the present invention;

The structured flowchart that Fig. 2 is the present invention's the second long-distance centralized control device;

Fig. 3 is the structured flowchart that back pressure type cogeneration units of the present invention is controlled final controlling element;

The structured flowchart that Fig. 4 is integrated dispatch control device of the present invention;

The connection layout that Fig. 5 is integrated dispatch control device of the present invention and cloud computing service system;

The curve chart that Fig. 6 is equivalent power load and target load after dispatching patcher of the present invention and dispatching method are regulated.

Embodiment

Below in conjunction with accompanying drawing explanation the specific embodiment of the present invention.

Please refer to shown in Fig. 1, of the present inventionly a kind ofly comprise that the combined heat and power dispatching patcher of back pressure type cogeneration units comprises:

Back pressure type cogeneration units A for output electric power and heating hot water;

The air conditioner heat pump 108 in parallel with described back pressure type cogeneration units A by power cable 113, the electric energy that described air conditioner heat pump 108 is produced by described back pressure type cogeneration units A drives and produces heating heat energy;

The non-heating ammeter of user, for detection of user's non-heating power consumption data;

Control the air conditioner heat pump remote control switch 117 of air conditioner heat pump 108;

The hot-water type heating radiator 110 be connected with described back pressure type cogeneration units A by heat supply pipeline 114, the hot water that described back pressure type cogeneration units A produces flows in described hot-water type heating radiator 110 and produces heating heat energy;

Hot-water type heating radiator hot water consumes gauge table 111, the data that consume for detection of described hot-water type heating radiator 110 hot water;

Control the hot-water type heating radiator flowing water valve remote control switch 116 of hot-water type heating radiator 110;

The first long-distance centralized control device 1121, gather the fuel input amount of back pressure type cogeneration units A, the steam inlet amount, hot water flow and the generated output electric weight of exerting oneself heats, and by the fuel input amount of the back pressure type cogeneration units A of collection, the steam inlet amount, the hot water flow of exerting oneself heats, the generated output electric weight, send integrated dispatch control device 115 to;

The second long-distance centralized control device 1122, store the range information between hot-water type heating radiator and back pressure type cogeneration units A, gather the non-heating power consumption of user data, then send the range information between this user non-heating power consumption data and hot-water type heating radiator and back pressure type cogeneration units A to integrated dispatch control device 115; Gather hot-water type heating radiator hot water and consume the hot water consumption data that gauge table 111 detects, then the hot water consumption data that the hot-water type heating radiator hot water of this collection consumption gauge table 111 is detected sends integrated dispatch control device 115 to;

Integrated dispatch control device 115, according to distance between hot-water type heating radiator 110 and back pressure type cogeneration units A, calculate and generate the generated output of final scheduling controlling back pressure type cogeneration units A and heat is exerted oneself and the user not power consumption of air-conditioning heat pump in the same time and the control signal of heating load;

After the first long-distance centralized control device receives the scheduling control signal that integrated dispatch control device 115 sends, control the final controlling element action of back pressure type cogeneration units A with this scheduling control signal;

After the scheduling control signal that the second long-distance centralized control device sends to reception integrated dispatch control device 115, with this scheduling control signal, drive respectively air conditioner heat pump remote control switch 117, hot-water type heating radiator flowing water valve remote control switch 116 to carry out the switching on and shutting down action;

Can be under the driving of the electric energy that the air conditioner heat pump 108 of end user location produces at back pressure type cogeneration units A and use the terminal use of air conditioner heat pump 108 that heating is provided.The radiator 110 that the heating that back pressure type cogeneration units A produces sends the terminal use with hot water to by heat supply pipeline 114 provides heating.The valve that back pressure type cogeneration units AA is provided with the input quantity of steam 1., 3. 2. the heating amount of the drawing gas valve of exerting oneself reach generating quantity of steam valve.The air conditioner heat pump 108 of described end user location is in parallel with back pressure type cogeneration units A by transmission line 113, the electric energy produced by described back pressure type cogeneration units A drives air conditioner heat pump 108 to produce the heating heat energy, and then provides heating for air conditioner user.5. described air conditioner heat pump 108 also comprises air conditioner heat pump switch.

Please refer to Fig. 1, described air conditioner heat pump remote control switch 117 connects air conditioner heat pump 108, for controlling the switch of air conditioner heat pump 108.Described radiator 110 is connected with described back pressure type cogeneration units A by heat supply pipeline 114, and flows into generation heating heat energy in described radiator 110 by the hot water of described back pressure type cogeneration units A output.Described hot water consumes gauge table 111 and is coupled with described radiator 110, for detection of the heating heat dissipation data of described radiator 110.6. described radiator 110 is provided with controlled valve.The non-heating power consumption data that the second long-distance centralized control device 112 gathers the user send user's non-heating power consumption data to integrated dispatch control device 115 again; Gather hot-water type heating radiator hot water and consume the hot water consumption data that gauge table 111 detects, and then send this hot water consumption data to integrated dispatch control device 115.

Please refer to shown in Fig. 2, the second long-distance centralized control device 1122 comprises the non-heating ammeter of user pulse counter, heating hot water flow pulse counter, pulse-code transducer, the metering signal amplifying emission device connected successively, and interconnective control signal Rcv decoder and control signal remote control transmitter; The non-heating ammeter of user pulse counter is for detection of the power consumption data of the non-heating of user, and the non-heating ammeter of user pulse counter detects the power consumption data that obtain and be sent to integrated dispatch control device 115 after pulse-code transducer and the processing of metering signal amplifying emission device; Heating hot water flow pulse counter connects hot-water type heating radiator hot water and consumes gauge table 111, consume the heating data on flows of gauge table 111 and the range information between hot-water type heating radiator and back pressure type cogeneration units A for detection of hot-water type heating radiator hot water, heating hot water flow pulse counter detects the heating data on flows and the range information that obtain and be sent to integrated dispatch control device 115 after pulse-code transducer and the processing of metering signal amplifying emission device; The control signal Rcv decoder, the scheduling control information that reception integrated dispatch control device 115 sends is also decoded, and then by the control signal remote control transmitter, sends to air conditioner heat pump remote control switch 117, hot-water type heating radiator flowing water valve remote control switch 116 to carry out the switching on and shutting down action control signal.

The first long-distance centralized control device 1121, gather the fuel input amount of back pressure type cogeneration units A, the steam inlet amount, hot water flow and the generated output electric weight of exerting oneself heats, and by the fuel input amount of the back pressure type cogeneration units A of collection, the steam inlet amount, the hot water flow of exerting oneself heats, the generated output electric weight, send integrated dispatch control device 115 to.

Please refer to shown in Fig. 3, back pressure type cogeneration units A controls final controlling element and comprises scheduling control signal transmitting-receiving coded stack 302, drive circuit 303 and mechanical gear control device 304, described scheduling control signal generates coal-fired thermal power coproduction machine unit scheduling control command after 302 decodings of scheduling control signal transmitting-receiving coded stack, Electric Traction signal Crush trigger gear control device 304 through overdrive circuit 303 outputs, 1. the input quantity of steam valve that mechanical gear control device 304 is controlled back pressure type cogeneration units A again moves, 3. the heating amount of the drawing gas valve quantity of steam valve that 2. moves and generate electricity of exerting oneself moves.Thereby control fuel input, heating purposes extraction flow and the power generation application steam flow of back pressure type cogeneration units A.

Please refer to Fig. 4, integrated dispatch control device 115 comprises:

The heating that receives the back pressure type cogeneration units (A) that the first long-distance centralized control device sends the first data receiver unit 200 of hot water flow and generated output electric weight of exerting oneself;

Receive the second data receiver unit 201 of power consumption data, heating hot water consumption data and user pipe range information that the non-heating ammeter of user that the second long-distance centralized control device sends detects;

The data decoder 202 that the described user non-heating power consumption data that receive and heating hot water consumption data are decoded;

The data storage that described decoded user non-heating power consumption data and heating hot water consumption data are stored;

The data of storing in the data memory are calculated and are generated to the scheduling control signal computing unit 204 of scheduling control signal;

The signal conversion coding device 205 that described scheduling control signal is encoded; And

Scheduling control signal after coding is passed to respectively to the transmitting element 206 of the first long-distance centralized control device and the second long-distance centralized control device.

Please refer to Fig. 5, integrated dispatch control device 115 is connected with cloud computing service system 917 by power optical fiber 120, and drives cloud computing service system 917 to calculate, to obtain scheduling control signal; Integrated dispatch control device 115 receives cloud computing service system 917 by power optical fiber 120 and calculates the scheduling control signal obtained, and then via power cable or wireless transmission method, issues this scheduling control signal to the first long-distance centralized control device 1121, the second long-distance centralized control device 1122.

The dispatching method that the present invention includes the combined heat and power dispatching patcher of back pressure type cogeneration units comprises the following steps:

1) measure---at interval of Δ T period measurement once, wherein, Δ T is the sampling period, and sampling number is T, and T is natural number

(1.1) measure supply side:

Measure the generated output P of back pressure type cogeneration units A _cHPand the heat H that exerts oneself (t) _cHP(t);

(1.2) measure user's side: (i=0～N, N is user's number)

1.2.1) a N user's hot-water type heating radiator apart from the pipeline of back pressure type cogeneration units A apart from S _i;

1.2.2) a N user's non-heating power consumption P _i(t);

1.2.3) the heat consumption H of a N user's hot-water type heating radiator _i(t);

1.2.4) a N user's air-conditioning heat pump installed capacity P _i ^eHP;

1.2.5) the thermal inertia time T of N user input _i

2) calculate:

2.1) calculate the total non-heating power consumption of all users

2.2) according to 2.1) and in the total non-heating power consumption P of user that calculates _sum(t), utilize known SPSS (Statistical Product and Service Solutions) statistical analysis technique, dope the electric load P of following a period of time _load(t); According to 1.1) heat of the back pressure type cogeneration units A that the gathers H that exerts oneself _cHP(t), the heat of the back pressure type cogeneration units A of the predict future a period of time H that exerts oneself _cHP(t); According to 1.1) the generated output P of the back pressure type cogeneration units (A) that gathers _cHP(t), the generated output P of the back pressure type cogeneration units (A) of predict future a period of time _cHP(t);

2.3) user grouping: calculate the equivalent distances of each user to thermal source

and do rounding operation and obtain by identical

the user be divided into same group, s _i=l, (L is natural number to add up to the L group; V is that hot water is at ducted flow velocity);

2.4) to 2.3) and in L the group of getting, obtain respectively the total heating load H that respectively organizes all users _loadand heat pump capacity P (l) _eHP(l)

h _i(t, l) is that l group user i is in the t heating load in the moment

p _i ^eHP(l) be the heat pump capacity of l group user i

3) control and calculate

By 1) below middle each parameter substitution of calculating and predicting, control in calculating:

(3.1) target function

$\mathrm{\&Delta;p}=\sqrt{\underset{t=T+1}{\overset{2T}{\mathrm{\&Sigma;}}}{(p_{\mathrm{load}}\left(t\right)-P_{\mathrm{need}}\left(t\right))}^2/(T+1)}$ Formula (1)

Wherein, Δ p is the standard deviation of equivalent power load after regulating and target load, the MW of unit;

P _load(t) be equivalent power load after regulating, the MW of unit;

P _need(t) be target load, the MW of unit.

Equivalent load after electric load is followed the tracks of is defined as follows:

P _load(t)=P _load(t)-(p _cHP(t)-P _cHP(t))+p _eHPs(t) formula (2)

Wherein, p _load(t) be equivalent power load after regulating, the MW of unit;

P _load(t) be step 2.2) the middle electric load of predicting, the MW of unit;

P _cHP(t) for regulating the generated output of after heat group of motors A, the MW of unit;

P _cHP(t) be step 2.2) in the generated output of beginning thermoelectricity unit A of prediction, the MW of unit;

P _eHPs(t) power consumption of all user's heat pumps while being t, the MW of unit.

(3.2) constraint equation

3.2.1 heat load balance equation

The deficiency that air-conditioning heat pump electricity consumption heating replaces back pressure type cogeneration units hot water heating to exert oneself is the core of method, if Δ h (t) means the power of t period back pressure type cogeneration units hot water heating deficiency,, its expression formula is:

Δ h (t)=| H _cHP(t)-h _cHP(t) | formula (3)

Wherein, Δ h (t) means the power of t period back pressure type cogeneration units hot water heating deficiency, the MW of unit

H _cHP(t) cogeneration of heat and power of prediction heating heat is exerted oneself, the MW of unit;

H _cHP(t) for cogeneration of heat and power heating heat after regulating, exert oneself, the MW of unit.

T period back pressure type cogeneration units hot water supply deficiency is organized and is used heat pump power consumption heating to obtain by each user, and due to the time delay of hot water transmission, also there is time delay in hot hydropenic impact, and this time delay is organized the variation of distance along with the user and changed.For example, according to above all users being divided into to approximate 0,1, .., L user's group, for the 1st user's group, the time that hot water flows to it is a unit scheduling duration, so the hot water deficiency also will have influence on the 1st user's group in the t+1 period, in like manner, the hot water deficiency will have influence on l user's group in the t+l period.Eventually the above, t period back pressure type cogeneration units hot water supply deficiency will be by the air-conditioning heat pump of 0～L user group, respectively t～(t+l) period compensates by electricity consumption.Concrete formula is:

$\mathrm{\&Delta;h}\left(t\right)=\underset{l=0}{\overset{L}{\mathrm{\&Sigma;}}}{h}_{\mathrm{EHP}}(t+l,l)(T\&le;t+l\&le;2T)$ Formula (4)

Wherein, h _eHP(t+l, l) is the t+l heating power sum of l group user heat pump constantly, the MW of unit.

If h in formula _eHP(t, l) can get 0, and on the one hand, some period, not all user's group all participated in compensation; On the other hand, if surpassed the total activation time of regulation, the hot water supply deficiency does not have influence on the user's group in far-end yet, and these user's groups also will not participate in compensation so.

3.2.2 back pressure type cogeneration units constraint:

The generated output lower limit:

$p_{\mathrm{CHE}}^{\min }\left(t\right)=90\%\&CenterDot;P_{\mathrm{CHP}};$ Formula (5)

The generated output upper limit:

$p_{\mathrm{CHE}}^{\max }\left(t\right)=P_{\mathrm{CHP}};$ Formula (6)

The generated output restriction:

$p_{\mathrm{CHP}}^{\min }\left(t\right)<p_{\mathrm{CHP}}\left(t\right)\&le;p_{\mathrm{CHP}}^{\max }\left(t\right);$ Formula (7)

Cogeneration of heat and power thermoelectricity is than retraining:

H _cHP(t)=RDBp _cHP(t); Formula (8)

${\mathrm{\&eta;}}_{\mathrm{CHP}}\left(t\right)=\frac{h_{\mathrm{CHP}}\left(t\right)+p_{\mathrm{CHP}}\left(t\right)}{f_{\mathrm{CHP}}\left(t\right)}---\left(9\right)$

In above-mentioned formula (5)～(8), P _cHPfor the specified generated output of back pressure type cogeneration units;

for regulating the minimum generated output of rear back pressure type cogeneration units; p _cHP(t) be back pressure type cogeneration units generated output after regulating;

for regulating rear back pressure type cogeneration units maximum generation, exert oneself; RDB is back pressure type cogeneration units thermoelectricity ratio; η _cHP(t) be back pressure type cogeneration units efficiency, f _cHP(t) for regulating the power energy consumption of rear back pressure type cogeneration units, the MW of unit.Mention in order to guarantee that the thermoelectricity unit still can meet the demand of original regional electric load at method general introduction one joint simultaneously, can limit in addition the cogeneration of heat and power generated output and be greater than generated output in the original plan:

p _CHP(t)≥P _CHP；

3.2.3 user's side heat pump constraint

Thermoelectricity is than constraint

H _eHP(t, l)=COP _eHPp _eHP(t, l) formula (10)

The heat pump upper limit of exerting oneself

0≤p _eHP(t, l)≤min (P _eHP(l), H _load(l)/COP) formula (11)

Wherein, h _eHP(t, l) is the t heating power sum of l group user heat pump constantly, the MW of unit;

COP _eHPfor performance coefficient of heat pump;

P _eHP(t, l) is the t power consumption sum of l group user heat pump constantly, the MW of unit.

Last air-conditioning heat pump power consumption heat supply both can compensate the deficiency of hot water heating, and therefore the load of the low-valley interval that also can increase electric power, need to obtain the air-conditioning heat pump power consumption sum of all user's groups of day part:

$p_{\mathrm{EHPs}}\left(t\right)=\underset{l=0}{\overset{L}{\mathrm{\&Sigma;}}}{p}_{\mathrm{EHP}}(t.l)$

4) send control signals to and supply with and the user-perform an action

According to 3) after optimizing performance variable, this performance variable signal is sent to supply side and user, carry out specifically action, as follows:

A cogeneration of heat and power generated output p _cHPand the heat h that exerts oneself (t) _cHP(t) signal, control cogeneration of heat and power and regulate the action of day part in the time in future

The party B-subscriber is heat pump power consumption p in the same time not _eHP(t, l) and heating load h _eHP(t, l), control user's side different distance user and use the heat pump heating amount, and close the heat radiation tolerance.

Described back pressure type cogeneration units generated output p _cHPand the heat h that exerts oneself (t) _cHP(t) signal and user heat pump power consumption p in the same time not _eHP(t, l) and heating load h _eHP(t, l) combines above-mentioned formula (1)～formula (11) and can obtain.

Please refer to shown in Fig. 6, as seen from the figure, after the invention dispatching method is regulated, user's power load approaches consistent with the target load curve substantially.

The present invention regulates the energy output of back pressure type cogeneration units with the output that reduces hot water or cold water, finally regulates electric load, so, can, on greatly energy-conservation basis, make the power load of prediction consistent with target load.

The foregoing is only one embodiment of the present invention, it not whole or unique execution mode, the conversion of any equivalence that those of ordinary skills take technical solution of the present invention by reading specification of the present invention, be claim of the present invention and contain.

Claims (9)

1. a combined heat and power dispatching patcher that comprises the back pressure type cogeneration units is characterized in that: comprising:

Back pressure type cogeneration units (A) for output electric power and heating hot water;

The air conditioner heat pump (108) in parallel with described back pressure type cogeneration units (A), the electric energy that described air conditioner heat pump (108) is produced by described back pressure type cogeneration units (A) drives and generation heating heat energy;

Control the air conditioner heat pump remote control switch (117) of air conditioner heat pump (108);

Gather the ammeter of the non-heating electricity consumption of user;

The hot-water type heating radiator (110) be connected with described back pressure type cogeneration units (A), the hot water that described back pressure type cogeneration units (A) is produced flows in described hot-water type heating radiator (110) and produces heating heat energy;

Hot-water type heating radiator hot water consumes gauge table (111), the data that consume for detection of described hot-water type heating radiator (110) hot water;

Control the hot-water type heating radiator flowing water valve remote control switch (116) of hot-water type heating radiator (110);

The first long-distance centralized control device (1121), the heating that gathers back pressure type cogeneration units (A) exert oneself hot water flow and generated output electric weight, and send exert oneself hot water flow and generated output electric quantity data of this heating to integrated dispatch control device (115);

The second long-distance centralized control device (1122), be stored with the range information between hot-water type heating radiator (110) and back pressure type cogeneration units (A), gather the non-heating power consumption data that the ammeter of the non-heating electricity consumption of described user detects, gather hot-water type heating radiator hot water and consume the hot water consumption data that gauge table (111) detects, then send range data between above-mentioned non-heating power consumption data and hot water consumption data and hot-water type heating radiator (110) and back pressure type cogeneration units (A) to integrated dispatch control device (115);

Integrated dispatch control device (115), calculates and generates generated output and hot the exerting oneself and the user not power consumption of air conditioner heat pump in the same time and the control signal of heating load of final scheduling controlling back pressure type cogeneration units (A) according to distance between hot-water type heating radiator (110) and back pressure type cogeneration units (A);

After described the first long-distance centralized control device (1121) receives the scheduling control signal that integrated dispatch control device (115) sends, control the final controlling element action of back pressure type cogeneration units (A) with this scheduling control signal;

After described the second long-distance centralized control device (1122) receives the scheduling control signal that integrated dispatch control device (115) sends, with this scheduling control signal, drive respectively air conditioner heat pump remote control switch (117), hot-water type heating radiator flowing water valve remote control switch (116) to carry out the switching on and shutting down action.

2. a kind of combined heat and power dispatching patcher that comprises the back pressure type cogeneration units according to claim 1, is characterized in that,

Described hot-water type heating radiator flowing water valve remote control switch (116), be coupled with remote control mode and described integrated dispatch control device (115) by the second long-distance centralized control device (1122);

Described air conditioner heat pump remote control switch (117), be coupled with remote control mode and described integrated dispatch control device (115) by the second long-distance centralized control device;

The final controlling element of described back pressure type cogeneration units, be coupled with remote control mode and described integrated dispatch control device (115) by the first long-distance centralized control device;

The final controlling element of described back pressure type cogeneration units (118) is according to the scheduling control signal obtained, and controls connected coal-fired material inlet valve, Boiler Steam admission valve, heating steam draw gas valve and generating steam flow valve event.

3. a kind of combined heat and power dispatching patcher that comprises the back pressure type cogeneration units according to claim 1, is characterized in that, described integrated dispatch control device (115) comprising:

The heating that receives the back pressure type cogeneration units (A) that the first long-distance centralized control device sends the first data receiver unit (200) of hot water flow and generated output electric weight of exerting oneself;

Receive the second data receiver unit (201) of power consumption data, heating hot water consumption data and user pipe range information that the non-heating ammeter of user that the second long-distance centralized control device sends detects;

The data decoder (202) that the described user non-heating power consumption data that receive and heating hot water consumption data are decoded;

The data storage (203) that described decoded user non-heating power consumption data and heating hot water consumption data are stored;

The data of storing in the data memory are calculated and are generated to the scheduling control signal computing unit (204) of scheduling control signal;

The signal conversion coding device (205) that described scheduling control signal is encoded; And

Scheduling control signal after coding is passed to respectively to the transmitting element (206) of the first long-distance centralized control device and the second long-distance centralized control device.

4. a kind of combined heat and power dispatching patcher that comprises the back pressure type cogeneration units according to claim 1, it is characterized in that, the final controlling element of described back pressure type cogeneration units comprises scheduling control signal transmitting-receiving code storage unit (302), drive circuit (303) and mechanical gear control device (304), described scheduling control signal generates the instruction of back pressure type cogeneration units scheduling controlling after scheduling control signal transmitting-receiving code storage unit decodes, this control command drags signal Crush trigger gear control device through the overdrive circuit output power, the mechanical gear control device is controlled the coal-fired material inlet valve action of back pressure type cogeneration units again, heating steam draw gas valve event and generating steam flow valve event.

5. a kind of combined heat and power dispatching patcher that comprises the back pressure type cogeneration units according to claim 1, it is characterized in that, described integrated dispatch control device (115) is connected with cloud computing service system (917) by power optical fiber (120), and drive cloud computing service system (917) to calculate, to obtain scheduling control signal; Described integrated dispatch control device (115) receives cloud computing service system (917) by power optical fiber (120) and calculates the scheduling control signal obtained, and then via power cable or wireless transmission method, issues this scheduling control signal to the first long-distance centralized control device and the second long-distance centralized control device.

6. a kind of combined heat and power dispatching patcher that comprises the back pressure type cogeneration units according to claim 1, it is characterized in that, described the second long-distance centralized control device comprises the non-heating ammeter of user pulse counter, heating hot water flow pulse counter, pulse-code transducer, the metering signal amplifying emission device connected successively, and interconnective control signal Rcv decoder and control signal remote control transmitter;

The non-heating ammeter of user pulse counter is connected with the non-heating ammeter of user, and the power consumption data that the non-heating ammeter of user pulse counter obtains detection are sent to integrated dispatch control device (115) after pulse-code transducer and the processing of metering signal amplifying emission device;

Heating hot water flow pulse counter connects hot-water type heating radiator hot water and consumes gauge table (111), consume the heating data on flows of gauge table (111) for detection of hot-water type heating radiator hot water, the heating data on flows that heating hot water flow pulse counter obtains detection is sent to integrated dispatch control device (115) after pulse-code transducer and the processing of metering signal amplifying emission device;

The control signal Rcv decoder, the scheduling control signal that reception integrated dispatch control device (115) sends is also decoded, and then by the control signal remote control transmitter, sends to air conditioner heat pump remote control switch (117), hot-water type heating radiator flowing water valve remote control switch (116) to carry out the switching on and shutting down action control signal.

7. a kind of combined heat and power dispatching patcher that comprises the back pressure type cogeneration units according to claim 1, it is characterized in that, the thermal inertia time data that described the second long-distance centralized control device (1122) is also inputted for gathering the user, and send these data to integrated dispatch control device (115).

8. a kind of dispatching method that comprises the combined heat and power dispatching patcher of back pressure type cogeneration units according to claim 1 is characterized in that: comprise the following steps:

1) measure following data: at interval of Δ T period measurement once, wherein, Δ T is the sampling period, and sampling number is T, and T is natural number:

1.1) measure supply side: the first long-distance centralized control device (1121) gathers the generated output P of back pressure type cogeneration units (A) _cHPand the heat H that exerts oneself (t) _cHP(t);

1.2) user's side: the second long-distance centralized control device (1122) gathers following data:

(a) N user's hot-water type heating radiator apart from the pipeline of back pressure type cogeneration units (A) apart from S _i;

(b) N user's non-heating power consumption P _i(t);

(c) the heat consumption H of N user's hot-water type heating radiator _i(t);

(d) N user's air conditioner heat pump installed capacity P _i ^eHP;

(e) the thermal inertia time T of N user's input _i;

2) calculate:

2.1) calculate the total non-heating power consumption of all users

2.2) according to 2.1) and in the total non-heating power consumption P of user that calculates _sum(t) utilize statistical analysis technique to calculate the electric load P that dopes a period of time _load(t); According to 1.1) heat of the back pressure type cogeneration units (A) that the gathers H that exerts oneself _cHP(t), the heat of the back pressure type cogeneration units (A) of the predict future a period of time H that exerts oneself _cHP(t); According to 1.1) the generated output P of the back pressure type cogeneration units (A) that gathers _cHP(t), the generated output P of the back pressure type cogeneration units (A) of predict future a period of time _cHP(t);

2.3) according between hot-water type heating radiator (110) and back pressure type cogeneration units (A) apart from S _iall users are divided into to the L group, and L is natural number, then obtains respectively the total heating load H of all users in each group _load(l)=Σ H _i(t, l) and air conditioner heat pump capacity P _eHP(l)=Σ P _i ^eHP(l), H _i(t, l) is that l group hot-water type heating radiator is at the t heating load in the moment, P _i ^eHP(l) be the heat pump capacity of l group hot-water type heating radiator, wherein user packet method is: at first calculate the equivalent distances between hot-water type heating radiator (110) and back pressure type cogeneration units (A)

v be hot water at ducted flow velocity, then right

round and obtain s _i, then, will there is identical s _ithe user be divided into same group, wherein, s _i=l, l is the l group in the L grouping;

2.4) according to above-mentioned measurement and each parameter iteration of doping calculate regulate after back pressure type cogeneration units generated output p _cHPand the heat h that exerts oneself (t) _cHP(t), user air conditioner heat pump power consumption p in the same time not _eHP(t, l) and heating load h _eHP(t, l).

9. a kind of dispatching method that comprises the combined heat and power dispatching patcher of back pressure type cogeneration units according to claim 8, is characterized in that: back pressure type cogeneration units generated output p after regulating _cHPand the heat h that exerts oneself (t) _cHP(t), user air conditioner heat pump power consumption p in the same time not _eHP(t, l) and heating load h _eHPthe computational methods of (t, l) are: combine that following formula (1)～(11) can be learnt in the situation that Δ p minimum, back pressure type cogeneration units generated output p after regulating _cHPand the heat h that exerts oneself (t) _cHPand user air conditioner heat pump power consumption p in the same time not (t) _eHP(t, l) and heating load h _eHP(t, l):

(A) establish target function

$\mathrm{\&Delta;p}=\sqrt{\underset{t=T+1}{\overset{2T}{\mathrm{\&Sigma;}}}{(p_{\mathrm{load}}\left(t\right)-P_{\mathrm{need}}\left(t\right))}^2/(T+1)}---\left(1\right)$

Wherein, Δ p is the standard error of equivalent power load after regulating and target load, the MW of unit;

P _load(t) be equivalent power load after regulating, the MW of unit;

P _need(t) be target load, the MW of unit;

Equivalent load after electric load is followed the tracks of is defined as follows:

p _load(t)=P _load(t)-(p _CHP(t)-P _CHP(t))+p _EHPs(t) （2）

Wherein, p _load(t) be equivalent power load after regulating, the MW of unit;

P _load(t) be step 2.2) the middle electric load of predicting, the MW of unit;

P _cHP(t) for regulating the generated output of rear back pressure type cogeneration units (A), the MW of unit;

P _cHP(t) be step 2.2) in the generated output of back pressure type cogeneration units (A) of prediction, the MW of unit;

P _eHPs(t) power consumption of all user's heat pumps while being t, the MW of unit;

(B) establish constraint equation

The heat load balance equation:

Δh(t)=|H _CHP(t)-h _CHP(t)| （3）

$\mathrm{\&Delta;h}\left(t\right)=\underset{l=0}{\overset{L}{\mathrm{\&Sigma;}}}{h}_{\mathrm{EHP}}(t+l,l)(T\&le;t+l\&le;2T)---\left(4\right)$

Wherein, Δ h (t) means the power of t period back pressure type cogeneration units hot water heating deficiency, the MW of unit;

H _cHP(t) for the back pressure type cogeneration units heating heat of prediction, exert oneself, the MW of unit;

H _cHP(t) for back pressure type thermoelectric perpetual motion machine group heating heat after regulating, exert oneself, the MW of unit;

H _eHP(t+l, l) is the t+l heating power sum of l group user heat pump constantly, the MW of unit;

The constraint of back pressure type cogeneration units:

The generated output lower limit:

$p_{\mathrm{CHE}}^{\min }\left(t\right)=90\%\&CenterDot;P_{\mathrm{CHP}}---\left(5\right)$

The generated output upper limit:

$p_{\mathrm{CHE}}^{\max }\left(t\right)=P_{\mathrm{CHP}};---\left(6\right)$

The generated output restriction:

$p_{\mathrm{CHP}}^{\min }\left(t\right)<p_{\mathrm{CHP}}\left(t\right)\&le;p_{\mathrm{CHP}}^{\max }\left(t\right)---\left(7\right)$

Back pressure type cogeneration of heat and power thermoelectricity is than retraining:

h _CHP(t)=RDB·p _CHP(t)； （8）

${\mathrm{\&eta;}}_{\mathrm{CHP}}\left(t\right)=\frac{h_{\mathrm{CHP}}\left(t\right)+p_{\mathrm{CHP}}\left(t\right)}{f_{\mathrm{CHP}}\left(t\right)}---\left(9\right)$

In above-mentioned formula (5)～(9), P _cHPfor the specified generated output of back pressure type cogeneration units;

for regulating the minimum generated output of rear back pressure type cogeneration units; p _cHP(t) be back pressure type cogeneration units generated output after regulating;

for regulating rear back pressure type cogeneration units maximum generation, exert oneself; RDB is back pressure type cogeneration units thermoelectricity ratio; η _cHP(t) be back pressure type cogeneration units efficiency, f _cHP(t) for regulating the power energy consumption of rear back pressure type cogeneration units, the MW of unit;

The constraint of user's side heat pump:

Thermoelectricity is than constraint: h _eHP(t, l)=COP _eHPp _eHP(t, l) (10)

The heat pump upper limit: the 0≤p that exerts oneself _eHP(t, l)≤min (P _eHP(l), H _load(l)/COP _eHP) (11)

Wherein, h _eHP(t, l) is the t heating power sum of l group user heat pump constantly, the MW of unit;

COP _eHPfor performance coefficient of heat pump;

P _eHP(t, l) is the t power consumption sum of l group user heat pump constantly, the MW of unit;

The air conditioner heat pump power consumption of all user's groups:

$p_{\mathrm{EHPs}}\left(t\right)=\underset{l=0}{\overset{L}{\mathrm{\&Sigma;}}}{p}_{\mathrm{EHP}}(t,l).$

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