CN102494430B - Cold-electricity cogeneration system comprising wind power and gas combined cycle unit and method for scheduling cold-electricity cogeneration system - Google Patents

Abstract

The invention discloses a cold-electricity cogeneration system comprising a wind power and gas combined cycle unit and a method for scheduling the cold-electricity cogeneration system. The system is cooled in two modes by a user, namely a coil pipe of a cooling fan and power consumption of an air conditioner, wherein cold water comes from a centralized heat absorption type refrigerating unit, power is provided by a gas combined cycle unit and a wind generating set in a combinative manner, and after conditions of energy supply and energy consumption of the user in a period of time are detected through a comprehensive scheduling control device, the conditions in a period of time later are predicted; the system is scheduled on the basis, cold water flow for cold energy power generation is reduced under the conditions that requirements of power supply and cold energy supply are met, and is compensated through power consumption cold supply; and by power consumption cold supply, the defects of cold supply through cold water can be overcome, and a load in a low power period can be increased; therefore, the power generation and gas combined cycle units are integrated according to wind power generation, so that the predicted power generation is closer to wind power generation required by the system.

Description

The combined power and cooling system and method that comprises wind-powered electricity generation and gas Combined Cycle Unit

Technical field

The present invention relates to city integrated energy supply system, relate in particular to a kind of combined power and cooling system and method that comprises wind-powered electricity generation and gas Combined Cycle Unit.

Background technology

Regenerative resource has green clean feature, and development in recent years rapidly.But take wind-powered electricity generation as example, wind-powered electricity generation is when providing clean low-carbon energy, and the extensive grid-connected of wind energy turbine set brought adverse effect also to power grid security economical operation.

Traditional scheduling problem is carried out based on load prediction accurately.And wind energy is subject to the impact of the multiple natural causes such as weather, height above sea level, landform and temperature, have intermittence and stochastic volatility, the difficulty of wind speed and wind power prediction is much bigger compared with load prediction.

Although Chinese scholars are own through wind energy is predicted to a large amount of correlative study work of having done at present, but the prediction level of output of wind electric field still cannot meet the requirement of engineering reality to a great extent, this has brought sizable difficulty to the traffic control of power system.

Summary of the invention

Technical problem to be solved by this invention is a kind of combined power and cooling system and method that comprises wind-powered electricity generation and gas Combined Cycle Unit, by dispatching patcher of the present invention and dispatching method thereof, can greatly reduce the wind-power electricity generation of system actual needs and the error between target wind-power electricity generation, to be conducive to system operation and planning, reduce scheduling difficulty.

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

A co-generation unit that comprises wind-powered electricity generation and gas Combined Cycle Unit, comprising: for the gas Combined Cycle Unit of output electric power and hot water; Wind power generating set for output electric power; Centralized heat absorption formula refrigeration machine, the hot water outlet of connection gas Combined Cycle Unit, is converted into cold water by hot water; The air-conditioner in parallel with described gas Combined Cycle Unit and wind power generating set, the electric energy that described air-conditioner is produced by described gas Combined Cycle Unit and wind power generating set drives and generation refrigeration cold wind; Control the air-conditioner remote control switch of air-conditioner; With the refrigeration fan coil pipe that described centralized heat absorption formula refrigeration machine is connected, the cold water that described centralized heat absorption formula refrigeration machine is produced flows into generation refrigeration cold wind in described refrigeration fan coil pipe; Refrigeration fan coil pipe cold water consumes gauge table, the data that consume for detection of described refrigeration fan coil pipe cold water; Control the refrigeration fan coil pipe flowing water valve remote control switch of refrigeration fan coil pipe; The first long-distance centralized control device, the heating that gathers gas Combined Cycle Unit 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; The second long-distance centralized control device, be stored with the range information between refrigeration fan coil pipe and gas Combined Cycle Unit, gather refrigeration fan coil pipe cold water and consume the cold water consumption data that gauge table detects, then send range data between above-mentioned cold water consumption data and refrigeration fan coil pipe and gas Combined Cycle Unit to integrated dispatch control device; The 3rd long-distance centralized control device, the generated output electric weight of collection wind power generating set, sends this generated output electric quantity data to integrated dispatch control device; Integrated dispatch control device, according to distance between refrigeration fan coil pipe and gas Combined Cycle Unit calculate and generate the generated output of final scheduling controlling gas Combined Cycle Unit and heat is exerted oneself and user not air-conditioner in the same time power consumption and for the control signal of cold; Described the first long-distance centralized control device receives after the scheduling control signal that integrated dispatch control device sends, and controls the actuating unit action of gas Combined Cycle Unit with this scheduling control signal; Described the second long-distance centralized control device receives after the scheduling control signal that integrated dispatch control device sends, and with this scheduling control signal, drives respectively air-conditioner remote control switch, refrigeration fan coil pipe flowing water valve remote control switch to carry out switching on and shutting down action.

Described refrigeration fan coil pipe flowing water valve remote control switch, is coupled with remote control mode and described integrated dispatch control device by the second long-distance centralized control device; Described air-conditioner remote control switch, is coupled with remote control mode and described integrated dispatch control device by the second long-distance centralized control device; Gas Combined Cycle Unit is controlled actuating unit, by the first long-distance centralized control device, with remote control mode and described integrated dispatch control device, is coupled; Described gas Combined Cycle Unit is controlled actuating unit according to the scheduling control signal obtaining, 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 gas Combined Cycle Unit 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 refrigeration cold water consumption data of refrigeration fan coil pipe and the second data receiver unit of user pipe range information that the second long-distance centralized control device sends; Receive the 3rd data receiver unit of the generated output electric quantity data of the wind power generating set that the 3rd long-distance centralized control device sends; The data decoder of the decoding data that first, second, and third data receiver unit is received; The data storage that decoded data are stored; The data of storing in data storage are calculated and are generated 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 gas Combined Cycle Unit is controlled actuating unit and is comprised scheduling control signal transmitting-receiving coded stack, drive circuit and mechanical gear control device, the generating gas Combined Cycle Unit scheduling controlling instruction after scheduling control signal transmitting-receiving code storage unit decodes of described scheduling control signal, this control instruction drags signal Crush trigger gear control device through overdrive circuit output power, and the coal-fired material inlet valve that mechanical gear control device is controlled gas Combined Cycle Unit again moves, steam draws gas valve event and generating steam flow valve event;

Described integrated dispatch control device is connected with cloud computing calculation services system by power optical fiber, and drives cloud computing calculation services system-computed, to obtain scheduling control signal; Described integrated dispatch control device receives by power optical fiber the scheduling control signal that cloud computing calculation services 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 refrigeration cold water flow pulse counter, pulse-code converter, the metering signal amplifying emission device connecting successively, and interconnective control signal Rcv decoder and control signal remote control transmitter; Refrigeration cold water flow pulse counter connects refrigeration fan coil pipe cold water and consumes gauge table, for detection of refrigeration fan coil pipe cold water, consume the refrigeration data on flows of gauge table, the refrigeration data on flows that refrigeration cold water flow pulse counter obtains detection is sent to integrated dispatch control device after pulse-code converter and the processing of metering signal amplifying emission device; The scheduling control information that control signal Rcv decoder reception integrated dispatch control device sends is also decoded, and then by control signal remote control transmitter, sends to air-conditioner remote control switch, refrigeration fan coil pipe flowing water valve remote control switch to carry out switching on and shutting down and move control signal;

A dispatching method that comprises the combined power and cooling system of wind-powered electricity generation and gas Combined Cycle Unit, 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) measure supply side: the generated output P that gathers the gas Combined Cycle Unit of gas Combined Cycle Unit _comband the heat H that exerts oneself (t) _comb(t), the heat of the heating boiler H that exerts oneself _boil(t), the 3rd long-distance centralized control device gathers the generated output of wind energy unit

1.2) user's side:

(a) N user's refrigeration fan coil pipe apart from the pipeline of gas Combined Cycle Unit apart from S _i;

(b) the consumption cold H of N user's refrigeration fan coil pipe _i(t);

(c) N user's air-conditioner installed capacity P _i ^eHP;

2) calculate:

2.1) calculate the total generated output of wind power generating set m is the unit quantity of wind energy unit;

2.2) according to 2.1) in the total generated output of wind power generating set that calculates utilize statistical analysis technique to calculate the generated output P that dopes following a period of time wind power generating set _wind(t); According to 1.1) heat of the gas Combined circulation of the gas Combined Cycle Unit that the gathers H that exerts oneself _comb(t), the heat of the gas Combined of the gas Combined Cycle Unit of the predict future a period of time circulation H that exerts oneself _comb(t); According to 1.1) the generated output P of the gas Combined circulation of the gas Combined Cycle Unit that gathers _comb(t), the generated output P of the gas Combined of the gas Combined Cycle Unit of predict future a period of time circulation _comb(t); According to the heat of the heating boiler of the following a period of time gas Combined Cycle Unit H that exerts oneself _boil, the heat of the predict future a period of time heating boiler H that exerts oneself _boil;

2.3) according to distance S between refrigeration fan coil pipe and gas Combined Cycle Unit _iall users are divided into L group, and L is natural number, then obtains respectively the total cooling load H of all users in each group _load(l)=∑ H _i(t, l) and air-conditioner capacity P _eHP(l)=∑ P _i ^eHP(l), H _i(t, l) is that l group refrigeration fan coil pipe is at t cooling load constantly, P _i ^eHP(l) be the air-conditioner capacity of l group refrigeration fan coil pipe, wherein user packet method is: first calculate the equivalent distances between refrigeration fan coil pipe and gas Combined Cycle Unit v be cold water at ducted flow velocity, then right round and obtain s _i, then, will there is identical s _iuser be divided into same group, wherein, s _i=l, l is the l group in L grouping;

2.4 according to above-mentioned calculating and each parameter iteration of doping calculate regulate after the generated output p of gas Combined circulation of gas Combined Cycle Unit _comband the heat h that exerts oneself (t) _comb(t), the heat of the heating boiler of the gas Combined Cycle Unit h that exerts oneself _boil, user air-conditioner power consumption p in the same time not _eHP(t, l) and confession cold h _eHP(t, l).

The generated output p of combustion gas combined cycle after described adjusting _comband the heat h that exerts oneself (t) _comb(t), the heat of the heating boiler of the gas Combined Cycle Unit h that exerts oneself _boil, user air-conditioner power consumption p in the same time not _eHP(t, l) and confession cold h _eHPthe computational methods of (t, l) are: combine following formula (1)～(9) and can learn the in the situation that of Δ p minimum, the generated output p of combustion gas combined cycle after regulating _comband the heat h that exerts oneself (t) _comb(t), the heat of the heating boiler of the gas Combined Cycle Unit h that exerts oneself _boil, user air-conditioner power consumption p in the same time not _eHP(t, l) and confession cold h _eHP(t, l):

(A) establish object function

$\mathrm{\Δp}=\sqrt{\underset{t=0}{\overset{T}{\mathrm{\Σ}}}{(p_{\mathrm{wind}}\left(t\right)-P_{\mathrm{wind}}^{\mathrm{need}})}^2/(T+1)}---\left(1\right)$

Wherein, Δ p is the equivalent generated output of wind power generating set and the standard error of target generated output after regulating, the MW of unit;

P _wind(t) for regulating the equivalent generated output of rear wind power generating set, the MW of unit;

for the target generated output of wind power generating set, the MW of unit;

P _wind(t) expression formula is as follows:

p _wind(t)=P _wind(t)+(p _comb(t)-P _comb(t))-p _EHPs(t) （2）

Wherein, p _wind(t) for regulating the equivalent generated output of rear wind power generating set, the MW of unit;

P _wind(t) be step 2.2) in the generated output of wind power generating set of prediction, the MW of unit;

P _comb(t) for regulating the generated output of rear gas Combined Cycle Unit, the MW of unit;

P _comb(t) be step 2.2) in the generated output of gas Combined Cycle Unit of prediction, the MW of unit;

P _eHPs(t) power consumption of all user's air-conditioners while being t, the MW of unit;

(B) establish constraint equation

Heat load balance equation:

Δh(t)=|(H _comb(t)+H _boil(t))-(h _comb(t)+h _boil(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) represents the power of t period gas Combined Cycle Unit hot water heating deficiency, the MW of unit;

H _comb(t)+H _boil(t) for the gas Combined Cycle Unit heating heat of prediction is exerted oneself, the MW of unit;

H _comb(t)+h _boil(t) for gas Combined Cycle Unit heating heat after regulating is exerted oneself, the MW of unit;

H _eHP(t+l, l) is the t+l refrigeration work consumption sum of l group user air-conditioner constantly, the MW of unit;

Gas Combined Cycle Unit constraint:

$h_{\mathrm{comb}}\left(t\right)=f_{\mathrm{comb}}\left(t\right)\·{\mathrm{\η}}_{\mathrm{comb}}^q---\left(5\right)$

$p_{\mathrm{comb}}\left(t\right)=f_{\mathrm{comb}}\left(t\right)\·{\mathrm{\η}}_{\mathrm{comb}}^e---\left(6\right)$

In above-mentioned formula (5)～(6), h _comb(t) for the heat of combustion gas combined cycle after regulating is exerted oneself, the MW of unit; f _comb(t) the power energy consumption circulating for gas Combined; p _comb(t) for the electricity of combustion gas combined cycle after regulating is exerted oneself, the MW of unit; the combined cycle thermal efficiency for gas Combined circulation; combined cycle generation efficiency for gas Combined circulation;

The constraint of user's side air-conditioner:

Cold electricity is than constraint: h _eHP(t, l)=COP _eHPp _eHP(t, l) (7)

The air-conditioner upper limit: the 0≤p that exerts oneself _eHP(t, l)≤min (P _eHP(l), H _load(l)/COP _eHP) (8)

Wherein, h _eHP(t, l) is the t refrigeration work consumption sum of l group user air-conditioner constantly, the MW of unit;

COP _eHPfor household air-conditioner coefficient;

P _eHP(t, l) is the t power consumption sum of l group user air-conditioner constantly, the MW of unit;

The air-conditioning air-conditioner power consumption of all user's groups:

$p_{\mathrm{EHPs}}\left(t\right)=\underset{l=0}{\overset{L}{\mathrm{\Σ}}}{p}_{\mathrm{EHP}}(t,l)---\left(9\right).$

With respect to prior art, beneficial effect of the present invention is: the present invention utilizes user to the pipeline distance of low-temperature receiver, according to Fuel Consumption, generated output and the heat supply of the demand regulating gas Combined Cycle Unit of terminal use's load energy consumption exert oneself, the refrigeration of the electric power consumption of terminal use's air-conditioner refrigeration and terminal use's refrigeration fan coil pipe is for cold, thereby greatly reduce the wind-power electricity generation of system actual needs and the error between target wind-power electricity generation, to be conducive to system operation and planning, reduce scheduling difficulty.

Accompanying drawing explanation

Fig. 1 is the structured flowchart that the present invention includes the combined power and cooling system of wind-powered electricity generation and gas Combined Cycle Unit;

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

Fig. 3 is the structured flowchart that gas Combined Cycle Unit of the present invention is controlled actuating unit;

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

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

Fig. 6 is the curve map of equivalent power load and target load after dispatching patcher of the present invention and dispatching method regulate.

The specific 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 power and cooling system of wind-powered electricity generation and gas Combined Cycle Unit comprises:

Gas Combined Cycle Unit A for output electric power and hot water;

Wind power generating set B for output electric power;

Centralized heat absorption formula refrigeration machine, the hot water outlet of connection gas Combined Cycle Unit A, is converted into cold water by hot water;

By power cable 113 air-conditioner 108 in parallel with described gas Combined Cycle Unit A and wind power generating set, the electric energy that described air-conditioner 108 is produced by described gas Combined Cycle Unit A and wind power generating set drives and generation refrigeration cold wind;

Control the air-conditioner remote control switch 117 of air-conditioner 108;

The refrigeration fan coil pipe 110 being connected with described centralized heat absorption formula refrigeration machine by pipeline 114, the cold water that described centralized heat absorption formula refrigeration machine is produced flows into generation refrigeration cold wind in described refrigeration fan coil pipe 110;

Refrigeration fan coil pipe cold water consumes gauge table 111, the data that consume for detection of described refrigeration fan coil pipe 110 cold water;

Control the refrigeration fan coil pipe flowing water valve remote control switch 116 of refrigeration fan coil pipe 110;

The first long-distance centralized control device 1121, the heating that gathers gas Combined Cycle Unit A exert oneself hot water flow and generated output electric weight, and by the heating of the gas Combined Cycle Unit A of the collection hot water flow of exerting oneself, generated output electric weight, sends integrated dispatch control device 115 to;

The second long-distance centralized control device 1122, stores the range information between refrigeration fan coil pipe and gas Combined Cycle Unit A, then sends the range information between this refrigeration fan coil pipe and gas Combined Cycle Unit A to integrated dispatch control device 115; Gather refrigeration fan coil pipe cold water and consume the cold water consumption data that gauge table 111 detects, then the cold water consumption data that the refrigeration fan coil pipe cold water consumption gauge table 111 of this collection is detected sends integrated dispatch control device 115 to;

Integrated dispatch control device 115, according to distance between refrigeration fan coil pipe 110 and gas Combined Cycle Unit A, calculate and generate the generated output of final scheduling controlling gas Combined Cycle Unit A and heat is exerted oneself and user not air-conditioning air-conditioner in the same time power consumption and for the control signal of cold;

The first long-distance centralized control device receives after the scheduling control signal that integrated dispatch control device 115 sends, and controls the actuating unit action of gas Combined Cycle Unit 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 remote control switch 117, refrigeration fan coil pipe flowing water valve remote control switch 116 to carry out switching on and shutting down action;

The air-conditioner 108 of end user location can be and uses the terminal use of air-conditioner 108 that refrigeration cold wind is provided under the driving of the electric energy of gas Combined Cycle Unit A and wind power generating set generation.The refrigeration fan coil pipe 110 that the cooling cold water that centralized heat absorption formula refrigeration machine is produced sends terminal use to by pipeline 114 provides refrigeration cold wind.The valve that gas Combined Cycle Unit A is provided with input quantity of steam 1., heat supply exert oneself the amount of drawing gas valve 2. and generating quantity of steam valve 3..The air-conditioner 108 of described end user location is in parallel with gas Combined Cycle Unit A and wind power generating set by transmission line of electricity 113, the electric energy being produced by described gas Combined Cycle Unit A and wind power generating set drives air-conditioner 108 to produce refrigeration cold wind, and then provides refrigeration cold wind for air conditioner user.5. described air-conditioner 108 also comprises air-conditioner switch.

Please refer to Fig. 1, described air-conditioner remote control switch 117 connects air-conditioner 108, for controlling the switch of air-conditioner 108.Described refrigeration fan coil pipe 110 is connected with described centralized heat absorption formula refrigeration machine by pipeline 114, and flows into generation refrigeration cold wind in described refrigeration fan coil pipe 110 by the cold water of described centralized heat absorption formula refrigeration machine output.Described cold water consumes gauge table 111 and is coupled with described refrigeration fan coil pipe 110, for detection of the refrigeration of described refrigeration fan coil pipe 110, consumes cold data.6. described refrigeration fan coil pipe 110 is provided with controlled valve.The second long-distance centralized control device 112 gathers refrigeration fan coil pipe cold water and consumes the cold water consumption data that gauge table 111 detects, and then sends this cold 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 refrigeration cold water flow pulse counter, pulse-code converter, the metering signal amplifying emission device connecting successively, and interconnective control signal Rcv decoder and control signal remote control transmitter; Refrigeration cold water flow pulse counter connects refrigeration fan coil pipe refrigeration fan coil pipe cold water and consumes gauge table 111, for detection of refrigeration fan coil pipe cold water, consume the refrigeration data on flows of gauge table 111 and the range information between refrigeration fan coil pipe and gas Combined Cycle Unit A, refrigeration cold water flow pulse counter detects the refrigeration data on flows and the range information that obtain and be sent to integrated dispatch control device 115 after pulse-code converter and the processing of metering signal amplifying emission device; Control signal Rcv decoder, the scheduling control information that reception integrated dispatch control device 115 sends is also decoded, and then by control signal remote control transmitter, sends to air-conditioner remote control switch 117, refrigeration fan coil pipe flowing water valve remote control switch 116 to carry out switching on and shutting down and move control signal.

The first long-distance centralized control device 1121, the heating that gathers gas Combined Cycle Unit A exert oneself hot water flow and generated output electric weight, and by the heating of the gas Combined Cycle Unit A of the collection hot water flow of exerting oneself, generated output electric weight, sends integrated dispatch control device 115 to.

Please refer to shown in Fig. 3, gas Combined Cycle Unit A controls actuating unit and comprises scheduling control signal transmitting-receiving coded stack 302, drive circuit 303 and mechanical gear control device 304, the generating gas Combined Cycle Unit scheduling controlling instruction after 302 decodings of scheduling control signal transmitting-receiving coded stack of described scheduling control signal, 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 gas Combined Cycle Unit A again moves, 3. the heat supply amount of the drawing gas valve quantity of steam valve that 2. moves and generate electricity of exerting oneself moves.Thereby control fuel input, purposes extraction flow and the power generation application steam flow of gas Combined Cycle Unit A.

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

The heating that receives the gas Combined Cycle Unit (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 refrigeration cold water consumption data of the second long-distance centralized control device transmission and the second data receiver unit 201 of user pipe range information;

Receive the 3rd data receiver unit of the generated output electric quantity data of the wind power generating set that the 3rd long-distance centralized control device sends;

The data decoder 202 of the decoding data that first, second, and third data receiver unit is received;

The data storage that described decoded data are stored;

The data of storing in data storage are calculated and are generated 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 obtaining, 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 power and cooling system of wind-powered electricity generation and gas Combined Cycle Unit 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 the gas Combined Cycle Unit of gas Combined Cycle Unit A _comband the heat H that exerts oneself (t) _comb(t), the heat treatment H of heating boiler _boil(t), the 3rd long-distance centralized control device gathers the generated output of wind power generating set

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

1.2.1) N user's refrigeration fan coil pipe apart from the pipeline of gas Combined Cycle Unit A apart from S _i;

1.2.2) the consumption cold H of N user's refrigeration fan coil pipe _i(t);

1.2.3) N user's air-conditioner installed capacity P _i ^eHP;

2) calculate:

2.1) calculate the total generated output of wind power generating set m is the unit quantity of wind energy unit;

2.2) according to 2.1) in the total generated output of wind power generating set that calculates utilize known SPSS (Statistical Product and Service Solutions) statistical analysis technique, dope the generated output P of following a period of time wind power generating set _wind(t); According to 1.1) heat of the gas Combined circulation of the gas Combined Cycle Unit A that the gathers H that exerts oneself _comb(t), the heat of the gas Combined of the gas Combined Cycle Unit A of the predict future a period of time circulation H that exerts oneself _comb(t); According to 1.1) the generated output P of the gas Combined circulation of the gas Combined Cycle Unit A that gathers _comb(t), the generated output P of the gas Combined of the gas Combined Cycle Unit A of predict future a period of time circulation _comb(t); According to the heat of the heating boiler of the following a period of time gas Combined Cycle Unit A H that exerts oneself _boil, the heat of the predict future a period of time heating boiler H that exerts oneself _boil;

2.3) user grouping: calculate each user to the equivalent distances of low-temperature receiver and do rounding operation and obtain by identical user be divided into same group, s _i=l, (L is natural number to add up to L group; V is that cold water is at ducted flow velocity);

2.4) to 2.3) in L the group of getting, obtain respectively the total cooling load H that respectively organizes all users _loadand air-conditioner capacity P (l) _eHP(l)

h _i(t, l) is that l group user i is at t cooling load constantly

p _i ^eHP(l) be the air-conditioner capacity of l group user i

3) control and calculate

By 1) in calculate and each parameter substitution of prediction is controlled in calculating below:

(3.1) object function

$\mathrm{\Δp}=\sqrt{\underset{t=0}{\overset{T}{\mathrm{\Σ}}}{(p_{\mathrm{wind}}\left(t\right)-P_{\mathrm{wind}}^{\mathrm{need}})}^2/(T+1)}$ Formula (1)

Wherein, Δ p is the equivalent generated output of wind power generating set and the standard error of target generated output after regulating, the MW of unit;

P _wind(t) for regulating the equivalent generated output of rear wind energy unit, the MW of unit;

for target generated output, the MW of unit.

P _wind(t) expression formula is as follows:

P _wind(t)=P _wind(t)+(p _comb(t)-P _comb(t))-p _eHPs(t) formula (2)

Wherein, p _wind(t) for regulating the equivalent generated output of rear wind power generating set, the MW of unit;

P _wind(t) be step 2.2) in the generated output of wind power generating set of prediction, the MW of unit;

P _comb(t) for regulating the generated output of rear gas Combined Cycle Unit A, the MW of unit;

P _comb(t) be step 2.2) in the generated output of gas Combined Cycle Unit A of prediction, the MW of unit;

P _eHPs(t) power consumption of all user's air-conditioners while being t, the MW of unit.

(3.2) constraint equation

3.2.1 heat load balance equation

It is the core of method that air-conditioner electricity consumption refrigeration replaces the deficiency that gas Combined Cycle Unit hot water heating exerts oneself (supposing that hot water between gas Combined Cycle Unit and centralized heat absorption formula refrigeration machine and the conversion efficiency of cold water are 1), if Δ h (t) represents the power of t period gas Combined Cycle Unit hot water heating deficiency,, its expression formula is:

Δ h (t)=| (H _comb(t)+H _boil(t))-(h _comb(t)+h _boil(t)) | formula (3)

Wherein, Δ h (t) represents the power of t period gas Combined Cycle Unit hot water heating deficiency, the MW of unit

H _comb(t)+H _boil(t) for the gas Combined Cycle Unit heating heat of prediction is exerted oneself, the MW of unit;

H _comb(t)+h _boil(t) for gas Combined Cycle Unit heating heat after regulating is exerted oneself, the MW of unit.

T period gas Combined Cycle Unit hot water supply deficiency is organized and is used air-conditioner power consumption refrigeration to obtain by each user, and due to the time delay of cold water transmission, cold hydropenic impact also exists time delay, and this time delay is along with user organizes the variation of distance and changes.For example, according to above all users being divided into approximate 0,1, .., L user's group, for the 1st user's group, cold water flows to its time Wei Yige unit's scheduling duration, so cold water deficiency also will have influence on the 1st user's group in the t+1 period, in like manner, cold water deficiency will have influence on l user's group in the t+l period.Eventually the above, t period gas Combined Cycle Unit hot water supply deficiency is the air-conditioner by 0～L user group, respectively t～(t+l) period compensates by electricity consumption.Concrete formula is:

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

Wherein, h _eHP(t+l, l) is the t+l refrigeration work consumption sum of l group user air-conditioner 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, Cold 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 gas Combined Cycle Unit constraint:

$h_{\mathrm{comb}}\left(t\right)=f_{\mathrm{comb}}\left(t\right)\·{\mathrm{\η}}_{\mathrm{comb}}^q;$ Formula (5)

$p_{\mathrm{comb}}\left(t\right)=f_{\mathrm{comb}}\left(t\right)\·{\mathrm{\η}}_{\mathrm{comb}}^e;$ Formula (6)

In above-mentioned formula (5)～(6), h _comb(t) for the heat of combustion gas combined cycle after regulating is exerted oneself, the MW of unit; f _comb(t) the power energy consumption circulating for gas Combined; p _comb(t) for the electricity of combustion gas combined cycle after regulating is exerted oneself, the MW of unit; the combined cycle thermal efficiency for gas Combined circulation; combined cycle generation efficiency for gas Combined circulation.At method general introduction one joint, mention in order to guarantee that gas Combined Cycle Unit still can meet the demand of original region electric load simultaneously, can limit in addition gas Combined circulating generation and exert oneself and be greater than generated output in the original plan:

P _comb(t)>=P _combformula (7);

3.2.3 user's side air-conditioner constraint

Cold electricity is than constraint

H _eHP(t, l)=COP _eHPp _eHP(t, l) formula (8)

The air-conditioner upper limit of exerting oneself

0≤p _eHP(t, l)≤min (P _eHP(l), H _load(l)/COP) formula (9)

Wherein, h _eHP(t, l) is the t refrigeration work consumption sum of l group user air-conditioner constantly, the MW of unit;

COP _eHPfor household air-conditioner coefficient;

P _eHP(t, l) is the t power consumption sum of l group user air-conditioner constantly, the MW of unit.

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

$p_{\mathrm{EHPs}}\left(t\right)=\underset{l=0}{\overset{L}{\mathrm{\Σ}}}{p}_{\mathrm{EHP}}(t,l)$ Formula (10)

4) send control signals to and supply with and 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:

The generated output p of the gas Combined circulation of A gas Combined Cycle Unit _comband the heat h that exerts oneself (t) _comb(t), the heat of the heating boiler of the gas Combined Cycle Unit h that exerts oneself _boil(t) signal, controls gas Combined Cycle Unit and in future, regulates the action of day part in the time

Party B-subscriber is air-conditioner power consumption p in the same time not _eHP(t, l) and confession cold h _eHP(t, l), controls user's side different distance user and uses air-conditioner heating amount, and close refrigeration fan coil pipe amount.

The generated output p of the gas Combined circulation of described gas Combined Cycle Unit _comband the heat h that exerts oneself (t) _comb(t), the heat of the heating boiler of the gas Combined Cycle Unit h that exerts oneself _boil(t) signal and user air-conditioner power consumption p in the same time not _eHP(t, l) and confession cold h _eHP(t, l) combines above-mentioned formula (1)～formula (10) and can obtain.

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

To reduce the output of cold water, the generated energy of regulating gas Combined Cycle Unit finally regulates electric load in the present invention, 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 embodiment, the conversion of any equivalence that those of ordinary skills take technical solution of the present invention by reading description of the present invention, is claim of the present invention and contains.

Claims (8)

1. a combined power and cooling system that comprises wind-powered electricity generation and gas Combined Cycle Unit, is characterized in that: comprising:

Gas Combined Cycle Unit (A) for output electric power and hot water;

Wind power generating set (B) for output electric power;

Centralized heat absorption formula refrigeration machine, the hot water outlet of connection gas Combined Cycle Unit (A), is converted into cold water by hot water;

The air-conditioner (108) in parallel with described gas Combined Cycle Unit (A) and wind power generating set, the electric energy that described air-conditioner (108) is produced by described gas Combined Cycle Unit (A) and wind power generating set drives and generation refrigeration cold wind;

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

With the refrigeration fan coil pipe (110) that described centralized heat absorption formula refrigeration machine is connected, the cold water that described centralized heat absorption formula refrigeration machine is produced flows into generation refrigeration cold wind in described refrigeration fan coil pipe (110);

Refrigeration fan coil pipe cold water consumes gauge table (111), the data that consume for detection of described refrigeration fan coil pipe (110) cold water;

Control the refrigeration fan coil pipe flowing water valve remote control switch (116) of refrigeration fan coil pipe (110);

The first long-distance centralized control device (1121), the heating that gathers gas Combined Cycle Unit (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 refrigeration fan coil pipe (110) and gas Combined Cycle Unit (A), gather refrigeration fan coil pipe cold water and consume the cold water consumption data that gauge table (111) detects, then send range data between above-mentioned cold water consumption data and refrigeration fan coil pipe (110) and gas Combined Cycle Unit (A) to integrated dispatch control device (115);

The 3rd long-distance centralized control device (1123), the generated output electric weight of collection wind power generating set, sends this generated output electric quantity data to integrated dispatch control device (115);

Integrated dispatch control device (115), according to distance between refrigeration fan coil pipe (110) and gas Combined Cycle Unit (A) calculate and generate the generated output of final scheduling controlling gas Combined Cycle Unit (A) and heat is exerted oneself and user not air-conditioner in the same time power consumption and for the control signal of cold;

Described the first long-distance centralized control device (1121) receives after the scheduling control signal that integrated dispatch control device (115) sends, and controls the actuating unit action of gas Combined Cycle Unit (A) with this scheduling control signal;

Described the second long-distance centralized control device (1122) receives after the scheduling control signal that integrated dispatch control device (115) sends, and with this scheduling control signal, drives respectively air-conditioner remote control switch (117), refrigeration fan coil pipe flowing water valve remote control switch (116) to carry out switching on and shutting down action.

2. a kind of combined power and cooling system that comprises wind-powered electricity generation and gas Combined Cycle Unit according to claim 1, is characterized in that,

Described refrigeration fan coil pipe flowing water valve remote control switch (116), is coupled with remote control mode and described integrated dispatch control device (115) by the second long-distance centralized control device (1122);

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

Gas Combined Cycle Unit is controlled actuating unit, by the first long-distance centralized control device, with remote control mode and described integrated dispatch control device (115), is coupled;

Described gas Combined Cycle Unit is controlled actuating unit according to the scheduling control signal obtaining, and controls connected coal-fired material inlet valve, Boiler Steam admission valve, steam draw gas valve and generating steam flow valve event.

3. a kind of combined power and cooling system that comprises wind-powered electricity generation and gas Combined Cycle Unit according to claim 1, is characterized in that, described integrated dispatch control device (115) comprising:

The heating that receives the gas Combined Cycle Unit (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 refrigeration cold water consumption data of refrigeration fan coil pipe and the second data receiver unit (201) of the range information between refrigeration fan coil pipe (110) and gas Combined Cycle Unit (A) that the second long-distance centralized control device sends;

Receive the 3rd data receiver unit of the generated output electric quantity data of the wind power generating set that the 3rd long-distance centralized control device sends;

The data decoder (202) of the decoding data that first, second, and third data receiver unit is received;

The data storage that decoded data are stored (203);

The data of storing in data storage are calculated and are generated 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 power and cooling system that comprises wind-powered electricity generation and gas Combined Cycle Unit according to claim 1, it is characterized in that, the actuating unit of described gas Combined Cycle Unit comprises scheduling control signal transmitting-receiving coded stack (302), drive circuit (303) and mechanical gear control device (304), the generating gas Combined Cycle Unit scheduling controlling instruction after the decoding of scheduling control signal transmitting-receiving coded stack of described scheduling control signal, this control instruction drags signal Crush trigger gear control device through overdrive circuit output power, mechanical gear control device is controlled the coal-fired material inlet valve action of gas Combined Cycle Unit again, steam draw gas valve event and generating steam flow valve event.

5. a kind of combined power and cooling system that comprises wind-powered electricity generation and gas Combined Cycle Unit according to claim 1, it is characterized in that, described integrated dispatch control device (115) is connected with cloud computing calculation services system (917) by power optical fiber (120), and drive cloud computing calculation services system (917) to calculate, to obtain scheduling control signal; Described integrated dispatch control device (115) receives cloud computing calculation services system (917) by power optical fiber (120) and calculates the scheduling control signal obtaining, 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 power and cooling system that comprises wind-powered electricity generation and gas Combined Cycle Unit according to claim 1, it is characterized in that, described the second long-distance centralized control device comprises refrigeration cold water flow pulse counter, pulse-code converter, the metering signal amplifying emission device connecting successively, and interconnective control signal Rcv decoder and control signal remote control transmitter;

Refrigeration cold water flow pulse counter connects refrigeration fan coil pipe cold water and consumes gauge table (111), for detection of refrigeration fan coil pipe cold water, consume the data of the cold water consumption of gauge table (111), the data of the cold water consumption that refrigeration cold water flow pulse counter obtains detection are sent to integrated dispatch control device (115) after pulse-code converter and the processing of metering signal amplifying emission device;

The scheduling control signal that control signal Rcv decoder reception integrated dispatch control device (115) sends is also decoded, and then by control signal remote control transmitter, sends to air-conditioner remote control switch (117), refrigeration fan coil pipe flowing water valve remote control switch (116) to carry out switching on and shutting down action control signal.

7. a kind of dispatching method that comprises the combined power and cooling system of wind-powered electricity generation and gas Combined Cycle Unit 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 the gas Combined Cycle Unit of gas Combined Cycle Unit (A) _comband the heat H that exerts oneself (t) _comb(t), the heat of the heating boiler H that exerts oneself _boil(t), the 3rd long-distance centralized control device gathers the generated output of wind power generating set

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

(a) N user's refrigeration fan coil pipe apart from the pipeline of gas Combined Cycle Unit (A) apart from S _i;

(b) the consumption cold H of N user's refrigeration fan coil pipe _i(t);

(c) N user's air-conditioner installed capacity

2) calculate:

2.1) calculate the total generated output of wind power generating set m is the unit quantity of wind power generating set;

2.2) according to 2.1) in the total generated output of wind power generating set that calculates utilize statistical analysis technique to calculate and dope following a period of time wind power generating set generated output P _wind(t); According to 1.1) heat of the gas Combined circulation of the gas Combined Cycle Unit (A) that the gathers H that exerts oneself _comb(t), the heat of the gas Combined of the gas Combined Cycle Unit of predict future a period of time (A) the circulation H that exerts oneself _comb(t); According to 1.1) the generated output P of the gas Combined circulation of the gas Combined Cycle Unit (A) that gathers _comb(t), the generated output P of the gas Combined of the gas Combined Cycle Unit of predict future a period of time (A) circulation _comb(t); According to the heat of the heating boiler of following a period of time gas Combined Cycle Unit (A) H that exerts oneself _boil, the heat of the predict future a period of time heating boiler H that exerts oneself _boil;

2.3) according to distance S between refrigeration fan coil pipe (110) and gas Combined Cycle Unit (A) _iall users are divided into L group, and L is natural number, then obtains respectively the total cooling load H of all users in each group _load(l)=∑ H _i(t, l) and air-conditioner capacity h _i(t, l) is that l organizes refrigeration fan coil pipe at t cooling load constantly, be the air-conditioner capacity of l group refrigeration fan coil pipe, wherein user packet method is: first calculate the equivalent distances between refrigeration fan coil pipe (110) and gas Combined Cycle Unit (A) v be cold water at ducted flow velocity, then right round and obtain s _i, then, will there is identical s _iuser be divided into same group, wherein, s _i=l, l is the l group in L grouping;

2.4) according to above-mentioned measurement and each parameter iteration of doping, calculate the generated output p of the gas Combined circulation of the gas Combined Cycle Unit after regulating _comband the heat h that exerts oneself (t) _comb(t), the heat of the heating boiler of the gas Combined Cycle Unit h that exerts oneself _boil, user air-conditioner power consumption p in the same time not _eHP(t, l) and confession cold h _eHP(t, l).

8. a kind of dispatching method that comprises the combined power and cooling system of wind-powered electricity generation and gas Combined Cycle Unit according to claim 7, is characterized in that: the generated output p of combustion gas combined cycle after regulating _comband the heat h that exerts oneself (t) _comb(t), the heat of the heating boiler of the gas Combined Cycle Unit h that exerts oneself _boil, user air-conditioner power consumption p in the same time not _eHP(t, l) and confession cold h _eHPthe computational methods of (t, l) are: combine following formula (1)～(9) and can learn the in the situation that of Δ p minimum, the generated output p of combustion gas combined cycle after regulating _comband the heat h that exerts oneself (t) _comb(t), the heat of the heating boiler of the gas Combined Cycle Unit h that exerts oneself _boil, user air-conditioner power consumption p in the same time not _eHP(t, l) and cooling heat h _eHP(t, l):

(A) establish object function

$\mathrm{\Δp}=\sqrt{\underset{t=0}{\overset{T}{\mathrm{\Σ}}}{(P_{\mathrm{wind}}\left(t\right)-P_{\mathrm{wind}}^{\mathrm{need}})}^2/(T+1)}---\left(1\right)$

Wherein, Δ p is the equivalent generated output of wind power generating set and the standard error of target generated output after regulating, the MW of unit;

P _wind(t) for regulating the equivalent generated output of rear wind power generating set, the MW of unit;

for target generated output, the MW of unit;

P _wind(t) expression formula is as follows:

p _wind(t)=P _wind(t)+(p _comb(t)-P _comb(t))-p _EHPs(t) （2）

Wherein, p _wind(t) for regulating the equivalent generated output of rear wind power generating set, the MW of unit;

P _wind(t) be step 2.2) in the generated output of wind power generating set of prediction, the MW of unit;

P _comb(t) for regulating the generated output of rear gas Combined Cycle Unit (A), the MW of unit;

P _comb(t) be step 2.2) in the generated output of gas Combined Cycle Unit (A) of prediction, the MW of unit;

P _eHPs(t) power consumption of all user's air-conditioners while being t, the MW of unit;

(B) establish constraint equation

Heat load balance equation:

Δh(t)=|(H _comb(t)+H _boil(t))-(h _comb(t)+h _boil(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) represents the power of t period gas Combined Cycle Unit hot water heating deficiency, the MW of unit;

H _comb(t)+H _boil(t) for the gas Combined Cycle Unit heating heat of prediction is exerted oneself, the MW of unit;

H _comb(t)+h _boil(t) for gas Combined Cycle Unit heating heat after regulating is exerted oneself, the MW of unit;

H _eHP(t+l, l) is the t+l refrigeration work consumption sum of l group user air-conditioner constantly, the MW of unit;

Gas Combined Cycle Unit constraint:

$h_{\mathrm{comb}}\left(t\right)=f_{\mathrm{comb}}\left(t\right)\·{\mathrm{\η}}_{\mathrm{comb}}^q---\left(5\right)$

$p_{\mathrm{comb}}\left(t\right)=f_{\mathrm{comb}}\left(t\right)\·{\mathrm{\η}}_{\mathrm{comb}}^e---\left(6\right)$

In above-mentioned formula (5)～(6), h _comb(t) for the heat of combustion gas combined cycle after regulating is exerted oneself, the MW of unit; f _comb(t) the power energy consumption circulating for gas Combined; p _comb(t) for the electricity of combustion gas combined cycle after regulating is exerted oneself, the MW of unit; the combined cycle thermal efficiency for gas Combined circulation; combined cycle generation efficiency for gas Combined circulation;

The constraint of user's side air-conditioner:

Cold electricity is than constraint: h _eHP(t, l)=COP _eHPp _eHP(t, l) (7)

The air-conditioner upper limit: the 0≤p that exerts oneself _eHP(t, l)≤min (P _eHP(l), H _load(l)/COP _eHP) (8)

Wherein, h _eHP(t, l) is the t refrigeration work consumption sum of l group user air-conditioner constantly, the MW of unit;

COP _eHPfor household air-conditioner coefficient;

P _eHP(t, l) is the t power consumption sum of l group user air-conditioner constantly, the MW of unit;

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

$p_{\mathrm{EHPs}}\left(t\right)=\underset{l=0}{\overset{L}{\mathrm{\Σ}}}{p}_{\mathrm{EHP}}(t,l)---\left(9\right).$