CN105844097A - Method for calculating abandoned wind power of power system containing thermal power plant configured with thermal storage tank - Google Patents

Abstract

The present invention provides a method for calculating abandoned wind power of a power system containing a thermal power plant configured with a thermal storage tank. The method comprises: setting system parameters of the power system; according to the system parameters, calculating the original abandoned wind power and original abandoned wind electric quantity of the system in each period before configuring the thermal storage tank; determining an operating mode of the thermal storage tank and original abandoned wind condition, if there is abandoned wind and heat of the thermal storage tank is not fully released, calculating system working parameters in a heat release process of the thermal storage tank according to thermal storage power restrictions of the thermal storage tank and the like, and if there is no abandoned wind and heat is not fully stored in the thermal storage tank, calculating system working parameters in a heat storage process of the thermal storage tank according to thermal storage power restrictions of the thermal storage tank and the like, wherein the system working parameters comprise: the abandoned wind power and heat storage capacity of the system after configuring the thermal storage tank; and according to the abandoned wind power of the system in each period after configuring the thermal storage tank, calculating the total abandoned wind electric quantity, and calculating the abandoned wind absorptive electric quantity by combining the total abandoned wind electric quantity with the original abandoned wind electric quantity. The method disclosed by the present invention realize calculation of abandoned wind power of the power system after the thermal power plant is configured with the thermal storage tank.

Description

Wind power calculation algorithms is abandoned in power system containing configuration heat-accumulator tank steam power plant

Technical field

The present embodiments relate to Power System Planning and operation field, particularly relate to a kind of containing configuration heat-accumulator tank steam power plant Power system abandon wind power calculation algorithms.

Background technology

At present China " three Norths " area power grid to abandon landscape condition very serious, main reason is that heating period thermoelectricity unit is adopted By " electricity determining by heat " method of operation, cause peak load regulation ability degradation, thus cause peak load regulation network scarce capacity.Grind Study carefully and show, " three Norths " regional large-scale steam-extracting type steam power plant configures heat-accumulator tank, thermoelectricity unit " electricity determining by heat " can be effectively decoupled Run constraint, improve generating set peak modulation capacity, thus reduce and abandon wind.

Steam-extracting type thermoelectricity power generator turbine electric thermal power traffic coverage in prior art, as it is shown in figure 1, set machine under certain state Group electricity is exerted oneself as Pel, and heat is exerted oneself as Ph, and in the range of operating point should be positioned at shown in ABCDA, its model is as follows:

Pel≥Pelmin

Pel≤Pelmax

Pel≥Cm·Ph+K

Pel≤Pelmax-Cv·Ph

Ph≤Phmax

P=Pel+Cv Ph

Wherein, Pelmin, Pelmax are respectively minimum load, EIAJ under unit pure condensate operating mode, Cm=Δ Pel/ Δ Ph is the coefficient of elasticity (back pressure slope of a curve can be approximately considered constant) of electrical power during back pressure operation and thermal power, and K is Constant, Cv be throttle flow constant time many extractions unit heat supply heat under the reduction amount of generated output.Phmax is that extraction steam unit is maximum Heating power, Phmin is steam turbine heating power during unit generation power minimum, and it is thermoelectricity that corresponding electricity is exerted oneself as Pelmin, P Unit draws gas power.

If certain moment unit heat is exerted oneself as Ph (E), then its electricity is exerted oneself and can be changed between Pel (E)～Pel (F), wherein Pel (E) is that this period transconversion into heat is exerted oneself, that is the minimum electricity of " electricity determining by heat " is exerted oneself.This unit maximum heat exert oneself correspondence electricity go out Power is Pelhmax.

As in figure 2 it is shown, " system EIAJ " refers to all start unit variable capacity sums, usually spike generating in figure Load adds a certain proportion of spinning reserve.According to the system requirement to variable capacity, in conjunction with China's " energy-saving power generation dispatching way Detailed rules for the implementation (trying) " relevant regulations and the safe and stable operation demand of electrical network, i.e. can determine that opening of all kinds of units in system Shutdown situation.After startup-shutdown determines, according to the system regulation to all kinds of peak load regulations, and the supplying hot water of thermal power plant unit Flat, i.e. can determine that the minimum load level of system, i.e. in figure " system minimum load ".Now, if equivalent load (i.e. generation load Checking electrical power, is less than as shown in Figure 2) " system minimum load ", then mean that generating is more than load, for ensureing power balance, It is accomplished by limiting wind power output, thus causes and abandon wind, as shown in dash area in figure.

But the most do not abandon the computational methods of wind power about power system after steam power plant's configuration heat-accumulator tank.

Summary of the invention

The embodiment of the present invention provide a kind of containing configuration heat-accumulator tank steam power plant power system abandons wind power calculation algorithms, with gram Take above-mentioned technical problem.

The present invention is that wind power calculation algorithms is abandoned in a kind of power system containing configuration heat-accumulator tank steam power plant, including:

Setting the systematic parameter of power system, described systematic parameter includes: the generation load of system, wind power, unit The heat-accumulator tank capacity that parameter, the startup-shutdown state of each unit day part and each thermoelectricity unit are configured；

Before calculating described power system configuration heat-accumulator tank according to described systematic parameter, day part original abandons wind power and total Original abandon wind-powered electricity generation amount；

Judge described heat-accumulator tank duty and abandon landscape condition, if abandoning wind and described heat-accumulator tank heat the most all discharges, Then according to described heat-accumulator tank heat release Power Limitation, original abandon wind Power Limitation, thermoelectricity unit climbing rate limit calculate described accumulation of heat The system operational parameters of tank exothermic process, if not storing full, then according to described heat-accumulator tank accumulation of heat power without abandoning wind and described heat-accumulator tank Restriction, equivalent load Power Limitation, thermoelectricity unit climbing rate limit the system operational parameters calculating described heat-accumulator tank heat-accumulating process, Described system operational parameters includes: the amount of stored heat abandoning wind power and heat-accumulator tank after system configuration heat-accumulator tank；

According to total after system of abandoning described in the wind power calculation configuration heat-accumulator tank of day part after described system configuration heat-accumulator tank Abandon wind-powered electricity generation amount, and combine described original wind-powered electricity generation amount of abandoning and calculate and abandon emaciation due to emotional upset and receive electricity.

Further, before calculating described power system configuration heat-accumulator tank according to described systematic parameter, the original of day part abandons wind Power and total original abandon wind-powered electricity generation amount, including:

According to systematic parameter, use formula

Pels (j, t)=Cm (j) Phs (j, t)+K (j) j ∈ CHP (1)

The minimum electricity calculating thermal power plant unit is exerted oneself, and wherein, (j, is t) that the minimum electricity of thermal power plant unit is exerted oneself to described Pels, institute Stating the unit parameter that Cm, K are thermoelectricity unit, Cm=Δ Pel/ Δ Ph represents unit back pressuce slope of a curve, often can be approximately considered Number, K is constant；(j t) is the thermal power plant unit i heat supply level in t to Phs；CHP is thermal power plant unit numbering set；

Use formula

Pels (k, t)=Pelmin (k) U (k, t) k ∈ CON (2)

The minimum electricity calculating pure condensate unit is exerted oneself, wherein, described Pels (k, is t) that pure condensate start unit minimum electricity is exerted oneself, Pelmin is that the minimum electricity of unit is exerted oneself, its minimum steady combustion load and minimum operational mode determine, (k t) is pure condensate unit k to U In the startup-shutdown state of t, value is 1 expression start, and value is that 0 expression is shut down；CON is pure condensate machine group # set；

Minimum electricity according to described thermal power plant unit is exerted oneself and the minimum electricity of described pure condensate start unit is exerted oneself when determining each Section system minimum electricity exert oneself into

$\underset{i=1}{\overset{N}{\Σ}}Pels(i,t)---\left(3\right)$

Wherein, thermoelectricity unit and total number of units of pure condensate unit during described N is described power system；

Minimum electricity according to described system is exerted oneself and is determined that the original wind power of abandoning of this period is:

$Pwabs\left(t\right)=max(0,\underset{i=1}{\overset{N}{\Σ}}Pels(i,t)-(PDel\left(t\right)-wind\left(t\right)\left)\right)---\left(4\right)$

Wherein, described PDel (t)-wind (t) is the equivalent load of power system of t.

Wind power and formula is abandoned according to described day part is original

$Qwabs=\underset{t=1}{\overset{T}{\Σ}}Pwabs\left(t\right)---\left(5\right)$

Calculating that described system is original abandons wind-powered electricity generation amount Qwabs, in formula, T is period sum.

Further, according to described heat-accumulator tank heat release Power Limitation, original abandon wind Power Limitation, thermoelectricity unit climbing rate limit System calculates the system operational parameters of described heat-accumulator tank exothermic process, including:

Maximum according to the configured heat-accumulator tank of thermal power plant unit can be exerted oneself with corresponding unit heat and can decline space by heat release power First ratio and original abandon wind power exert oneself with thermal power plant unit electricity can decline space sum the second ratio or described first ratio Value and original abandon the electricity that wind power and thermal power plant unit reduce exert oneself sum the 3rd ratio correction described in the minimum electricity of thermal power plant unit Exert oneself and corresponding heat is exerted oneself；

The power that draws gas according to thermal power plant unit limits the heat of the described thermal power plant unit of correction and exerts oneself and corresponding minimum with climbing rate Electricity is exerted oneself；

Exert oneself according to described revised heat and correspondence minimum electricity output calculation heat-accumulator tank amount of stored heat with abandon wind power.

Further, the described maximum according to the configured heat-accumulator tank of thermal power plant unit can be exerted oneself with corresponding unit heat by heat release power Can decline first ratio in space and original abandon wind power and thermal power plant unit electricity exert oneself can decline space sum the second ratio or First ratio described in person and original abandon the electricity that wind power and thermal power plant unit reduce exert oneself sum the 3rd ratio correction described in heat supply The minimum electricity of unit is exerted oneself and corresponding heat is exerted oneself, including:

Use formula

$\mathrm{\α}(i,t)=\frac{min\left(HS\right(i,t-1),Down(i\left)\right)\·U(i,t)}{\left(Phs\right(i,t)-Ph\min (i\left)\right)}---\left(6\right)$

The maximum calculating the configured heat-accumulator tank of thermal power plant unit heat release power and described thermal power plant unit heat can be exerted oneself and can decline sky Between the first ratio cc (i, t), wherein, HS (i, t-1) be thermoelectricity unit i configuration heat-accumulator tank remaining after the t-1 moment terminates Amount of stored heat, Down (i) is the exothermic maximum power of thermoelectricity the configured heat-accumulator tank of unit i, so formula Middle molecule represents thermal power plant unit i Configured heat-accumulator tank at most can liberated heat in t；Phmin (i) is thermal power plant unit i its minimum corresponding under back pressure operating mode The exert oneself heat of Pelmin of electricity is exerted oneself, so denominator represents that thermal power plant unit i exerts oneself in the most reducible heat of t in formula；

If described first ratio is more than 1, according to formula

$\mathrm{\β}\left(t\right)=\frac{Pwabs\left(t\right)}{\underset{i=1}{\overset{N}{\Σ}}\left(Pels\right(i,t)-Pelmin(i\left)\right)\·U(i,t)}---\left(7\right)$

Calculate original wind power and the thermal power plant unit electricity abandoned to exert oneself the second ratio beta (t) of the space sum that can decline；

Judge whether described second ratio is more than 1, if, it is determined that the minimum electricity of described thermal power plant unit is exerted oneself as Pelmin I (), corresponding heat is exerted oneself as Phmin (i)；If it is not, then according to formula

Pel (i, t)=Pels (i, t)-β (t) (Pels (i, t)-Pelmin (i))

$Ph(i,t)=\frac{Pel(i,t)-K\left(i\right)}{Cm\left(i\right)}---\left(8\right)$

Revise the minimum electricity of described thermal power plant unit exert oneself Pel (i, t) and corresponding heat exert oneself Ph (i, t)；

If described first ratio is not more than 1, then according to formula

$\begin{array}{c}\mathrm{Ph}(i,t)=\mathrm{Phs}(i,t)-\min (\mathrm{HS}(i,t-1),\mathrm{Down}\left(i\right))\·U(i,t)\\ \mathrm{Pel}(i,t)=\mathrm{Cm}\left(i\right)\·\mathrm{Ph}(i,t)+K\left(i\right)\end{array}---\left(9\right)$

Calculate described thermal power plant unit heat to exert oneself and corresponding minimum electricity is exerted oneself, and according to formula

$\mathrm{\η}\left(t\right)=\frac{Pwabs\left(t\right)}{\underset{i=1}{\overset{N}{\Σ}}\left(Pels\right(i,t)-Pel(i,t\left)\right)}---\left(10\right)$

Calculate and original abandon the electricity that wind power and thermal power plant unit reduce and exert oneself the 3rd ratio η (t) of sum；

If described 3rd ratio is less than 1, according to formula

Pel (i, t)=Pels (i, t)-η (t) (Pels (i, t)-Pel (i, t))

$Ph(i,t)=\frac{Pel(i,t)-K\left(i\right)}{Cm\left(i\right)}---\left(11\right)$

Revising the minimum electricity of described thermal power plant unit to exert oneself and corresponding heat is exerted oneself, the electricity making thermal power plant unit reduce just is exerting oneself sum Wind power is abandoned well equal to original；

If described 3rd ratio not less than 1, is not the most revised the minimum electricity of described thermal power plant unit and is exerted oneself and corresponding heat is exerted oneself.

Further, limit according to draw gas power and the climbing rate of thermal power plant unit revise the heat of described thermal power plant unit exert oneself and Corresponding minimum electricity is exerted oneself, including:

According to formula

P (i, t)=Pel (i, t)+Cv (i) Ph (i, t) (12)

Up (i, t)=max (0, P (i, t)-P (i, t-1)) (13)

Down (i, t)=max (0, P (i, t-1)-P (i, t)) (14)

Calculate the upper climbing power of draw gas power and the described thermal power plant unit of described thermal power plant unit and lower climbing power, its In, Cv be thermoelectricity unit throttle flow constant time many extractions unit heat supply heat under the reduction amount of generated output, (i t) is heat supply to P Unit i is at the power that draws gas of t；Up (i, t), down (i, t) be respectively thermal power plant unit i t upper climbing power and Lower climbing power；

If described lower climbing power is more than power of climbing under described thermal power plant unit maximum, then according to formula

$Ph(i,t)=Ph(i,t-1)-\frac{downramp\left(i\right)}{Cm\left(i\right)+Cv\left(i\right)}---\left(15\right)$

Pel (i, t)=Cm (i) Ph (i, t)+K (i)

Revising the heat of described thermal power plant unit to exert oneself and corresponding minimum electricity is exerted oneself, wherein downramp (i) is thermoelectricity unit i Climb under maximum power；

If described upper climbing power is more than power of climbing in described thermal power plant unit maximum, then according to formula

$Ph(i,t)=Ph(i,t-1)+\frac{upramp\left(i\right)}{Cm\left(i\right)+Cv\left(i\right)}---\left(16\right)$

Pel (i, t)=Cm (i) Ph (i, t)+K (i)

Revise the heat of described thermal power plant unit to exert oneself and corresponding minimum electricity is exerted oneself, wherein upramp (i) be thermoelectricity unit i Climb on great power.

Further, described exert oneself according to described revised heat and the accumulation of heat of minimum electricity output calculation heat-accumulator tank of correspondence Measure and abandon wind power, including:

According to formula

$HS(i,t)=max(0,HS(i,t-1)-\underset{i=1}{\overset{N}{\Σ}}(Phs\left(i,t\right)-Ph\left(i,t\right))---\left(17\right)$

Calculate each configured heat-accumulator tank of thermoelectricity unit amount of stored heat in t；

According to formula

$Pwab\left(t\right)=max(0,\underset{i=1}{\overset{N}{\Σ}}Pel(i,t)-(PDel\left(t\right)-wind\left(t\right)\left)\right)---\left(18\right)$

After calculating thermoelectricity crew qiting heat-accumulator tank, system abandons wind power.

Further, according to described heat-accumulator tank accumulation of heat Power Limitation, equivalent load Power Limitation, thermoelectricity unit climbing rate limit System calculates the system operational parameters of described heat-accumulator tank heat-accumulating process, including:

Maximum according to heat-accumulator tank can accumulation of heat power exert oneself with heat can the 4th ratio of the rising space and the heat of thermal power plant unit Elelctrochemical power generation power regulating range and thermal power plant unit electricity exert oneself can the 5th ratio of rising space sum or described 4th ratio and The electricity of transconversion into heat generated output range of accommodation and thermal power plant unit exert oneself rising value sum the 6th ratio correction described in thermal power plant unit Heat is exerted oneself；

The power that draws gas according to thermal power plant unit limits the minimum electricity of the described thermal power plant unit of correction and exerts oneself and corresponding with climbing rate Heat is exerted oneself；

Exert oneself according to described revised heat and corresponding minimum electricity output calculation heat-accumulator tank amount of stored heat with abandon wind power.

Further, according to the maximum of heat-accumulator tank can accumulation of heat power exert oneself with heat can the 4th ratio of the rising space, heat supply The transconversion into heat generated output range of accommodation of unit and thermal power plant unit electricity are exerted oneself can the 5th ratio or the described 4th of rising space sum The electricity of ratio and transconversion into heat generated output range of accommodation and thermal power plant unit exert oneself rising value sum the 6th ratio correction described in heat supply The heat of unit is exerted oneself, including:

Use formula

$S\left(t\right)=\min \left(\underset{i\∈UCHP\left(t\right)}{\Σ}Pelh\max \right(i)+\underset{j\∈UCON\left(t\right)}{\Σ}Pel\min (j),PDel(t)-wind(t\left)\right)---\left(19\right)$

Calculating system thermal power plant unit maximum heat dissolves power and pure condensate start unit minimum load sum at the value of t and t Time both etching system equivalent loads minima, wherein, UCHP (t) is the t Phs (unit (i.e. thermal power plant unit) of i, t) > 0 Numbering set；UCON (t) be t Phs (i, the numbering set of the start unit (i.e. pure condensate start unit) of t)=0, Pelhmax (i) is that the exert oneself electricity of Phmax of thermoelectricity unit i correspondence maximum heat is exerted oneself；

Use formula

$\mathrm{\γ}(i,t)=\frac{\min \left(C\right(i)-HS(i,t-1),Up(i\left)\right)}{\left(Ph\max \right(i)-Phs(i,t\left)\right)}\·U(i,t)---\left(20\right)$

The maximum calculating the heat-accumulator tank that thermal power plant unit is configured can be exerted oneself can rise with corresponding thermal power plant unit heat by accumulation of heat power The 4th ratio in space, wherein C (i)-HS (i, t-1) represents that the remaining accumulation of heat of heat-accumulator tank of i-th crew qiting of t is empty Between, Up (i) represents the maximum accumulation of heat power of the heat-accumulator tank of i-th crew qiting, and (i t) represents i-th unit of t to described γ The accumulation of heat power that is provided that of heat-accumulator tank of configuration is exerted oneself with corresponding unit heat the ratio in the space that can rise,

If described 4th ratio is more than 1, then according to formula

$\mathrm{\σ}\left(t\right)=\frac{S\left(t\right)-\underset{i=1}{\overset{N}{\Σ}}Pels\left(i\right)\·U(i,t)}{\underset{i\∈UCHP\left(t\right)}{\Σ}\left(Pelh\max \right(i)-Pels(i,t\left)\right)}---\left(21\right)$

Transconversion into heat generated output range of accommodation and the thermal power plant unit electricity of calculating system is exerted oneself can the 5th ratio of rising space sum Value；

If described 5th ratio is more than 1, it is determined that the minimum electricity of described thermal power plant unit is exerted oneself as Pelhmax (i), corresponding heat Exert oneself as Phmax (i)；

If described 5th ratio is not more than 1, then according to formula

Pel (i, t)=Pels (i, t)+σ (t) (Pelhmax (i)-Pels (i, t))

$Ph(i,t)=\frac{Pel(i,t)-K\left(i\right)}{Cm\left(i\right)}---\left(22\right)$

Calculate the electricity of described thermal power plant unit to exert oneself and corresponding heat is exerted oneself；

If described 4th ratio is not more than 1, according to formula

Ph (i, t)=Phs (i, t)+min (C (i)-HS (i, t-1), Up (i))

Pel (i, t)=Cm (i) Ph (i, t)+K (i) (23)

Calculate described thermal power plant unit heat to exert oneself and corresponding minimum electricity is exerted oneself, and according to formula

$\mathrm{\θ}\left(t\right)=\frac{S\left(t\right)-\underset{i=1}{\overset{N}{\Σ}}Pels(i,t)\·U(i,t)}{\underset{i=1}{\overset{N}{\Σ}}\left(Pel\right(i,t)-Pels(i,t\left)\right)}---\left(24\right)$

The electricity calculating described system thermal elelctrochemical power generation power regulating range and thermal power plant unit is exerted oneself the 6th ratio of rising value sum Value；

If described 6th ratio is less than 1, according to formula

Pel (i, t)=Pel (i, t)-θ (t) (Pel (i, t)-Pels (i, t))

$Ph(i,t)=\frac{Pel(i,t)-K\left(i\right)}{Cm\left(i\right)}---\left(25\right)$

Revise the minimum electricity of described thermal power plant unit to exert oneself and corresponding heat is exerted oneself；

If described 6th ratio not less than 1, is not the most revised the minimum electricity of described thermal power plant unit and is exerted oneself and corresponding heat is exerted oneself.

Further, limit according to draw gas power and the climbing rate of thermal power plant unit revise the heat of described thermal power plant unit exert oneself and Corresponding minimum electricity is exerted oneself, including:

If described thermal power plant unit draws gas, the upper climbing power of power is more than power, the then root of climbing in described thermal power plant unit maximum According to formula

Pel (i, t)=Cm (i) Ph (i, t)+K (i) (26)

Revise the heat of described thermal power plant unit to exert oneself and corresponding minimum electricity is exerted oneself；

If described thermal power plant unit draws gas, the lower climbing power of power is more than climb under described thermal power plant unit maximum power, then root According to formula

$Ph(i,t)=Ph(i,t-1)-\frac{downramp\left(i\right)}{Cm\left(i\right)+Cv\left(i\right)}$

Pel (i, t)=Cm (i) Ph (i, t)+K (i) (27)

Revise the heat of described thermal power plant unit to exert oneself and minimum electricity is exerted oneself.

Further, exert oneself according to described revised heat and correspondence minimum electricity output calculation heat-accumulator tank amount of stored heat with Abandon wind power, including:

According to formula

$HS(i,t)=HS(i,t-1)+\underset{i=1}{\overset{N}{\Σ}}\left(Ph\right(i,t)-Phs(i,t\left)\right)---\left(28\right)$

Calculate each configured heat-accumulator tank of thermoelectricity unit amount of stored heat in t；

According to formula

$Pwab\left(t\right)=max(0,\underset{i=1}{\overset{N}{\Σ}}Pel(i,t)-(PDel\left(t\right)-wind\left(t\right)\left)\right)---\left(29\right)$

After calculating thermoelectricity crew qiting heat-accumulator tank, system abandons wind power.

After the present invention calculates steam power plant's configuration heat-accumulator tank exactly, the emaciation due to emotional upset of abandoning of power system receives electricity, it is achieved thereby that The assessment of the effect of wind electricity digestion after steam power plant's configuration heat-accumulator tank.

Accompanying drawing explanation

In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is this Some bright embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to Other accompanying drawing is obtained according to these accompanying drawings.

Fig. 1 is steam-extracting type thermoelectricity power generator turbine electric thermal power traffic coverage schematic diagram in prior art；

Fig. 2 is the power balance figure of power system heating period typical case's day in prior art；

Fig. 3 be after the present invention configures heat-accumulator tank power system abandon wind power calculation algorithms flow chart；

Fig. 4 is that steam power plant of the present invention configuration heat-accumulator tank is dissolved and abandoned wind schematic diagram；

Fig. 5 be after the present invention configures heat-accumulator tank power system abandon wind power calculation algorithms overall flow figure；

Fig. 6 is that present system heating period abandons wind power profile；

Typical case in January week power balance figure in Fig. 7 embodiment of the present invention；

In Fig. 8 embodiment of the present invention January typical case abandon wind changed power figure week；

In Fig. 9 embodiment of the present invention, typical case in January certain unit heat of week is exerted oneself and heating load diagram；

Typical case in January week certain unit configured heat-accumulator tank amount of stored heat variation diagram in Figure 10 embodiment of the present invention；

In Figure 11 embodiment of the present invention, heating period abandons wind-powered electricity generation amount with heat-accumulator tank volume change figure；

In Figure 12 embodiment of the present invention, heating period is abandoned emaciation due to emotional upset and is received effect with heat-accumulator tank volume change figure；

In Figure 13 embodiment of the present invention, heating period is abandoned emaciation due to emotional upset and is received limit electricity with heat-accumulator tank volume change figure.

Detailed description of the invention

For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is The a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art The every other embodiment obtained under not making creative work premise, broadly falls into the scope of protection of the invention.

Fig. 3 be steam power plant of the present invention configuration heat-accumulator tank after power system abandon wind power calculation algorithms flow chart, such as Fig. 3 institute Show, the method for the present embodiment, including:

Step 101, the systematic parameter of setting power system, described systematic parameter includes: the generation load of system, wind-powered electricity generation merit The heat-accumulator tank capacity that rate, unit parameter, the startup-shutdown state of each unit day part and each thermoelectricity unit are configured；

Specifically, 1. whole heating period is divided into T period, takes moment t ∈ 1..T.Set the generating of t system negative Lotus PDel (t), wind power wind (t), this setting value can be obtained by prediction or historical data；

2. setting in system and have N platform unit, every unit includes following parameter: unit installed capacity Pc, minimum thermal are exerted oneself The minimum electricity of Phmin and correspondence the exert oneself electricity of Phmax and correspondence of Pelmin, maximum heat of exerting oneself is exerted oneself Pelhmax, the ratio of slope that swashes limit Upramp processed, lower climbing rate limit downramp and unit electric heating traffic coverage parameter Cv, Cm, K (as shown in Figure 1).

Taking i-th unit in t thermic load is Phs (i, t) i ∈ 1..N.For thermal power plant unit, heating period is divided into In The Initial Period Of Heating, heat supply mid-term, heating three phases in latter stage, different in the thermic load of heating period different phase, but at same stage Thermic load is it is believed that be basically unchanged；And pure condensate unit is considered as the thermal power plant unit that thermic load is 0, thus Phs (i, t)=0, corresponding The unit parameter that heat is exerted oneself also is 0.

3. unit is in the startup-shutdown state of heating period, by electrical network minimum operational mode, generation load, Heating State, unit The factors such as peak modulation capacity determine (this content is prior art, does not repeats), and (i, t), value is 1 expression start, value to be expressed as U It is that 0 expression is shut down.

Each start unit electricity, heat are exerted oneself and are met traffic coverage described in Fig. 1 (pure condensate unit operation interval is in figure " DA " section), Shut down unit electricity, heat is exerted oneself and is 0.

4. balance dispatching mode is used in view of the power system of current China, so assuming that each steam power plant configures heat-accumulator tank After, each steam power plant abandons the task of dissolving of wind power according to the ability fair distribution of thermoelectricity unit, so every thermoelectricity unit is disappearing Receive and abandon the producing level during wind and be just regarded as identical.So, this patent assumes the regenerative capacity of every crew qiting With the ratio (i.e. heat-accumulator tank utilizes hourage) of its maximum digestion capability (i.e. heating period each stage (Phs-Phmin) maximum) it is Identical.Now, every unit configured heat-accumulator tank capacity is the storage that its wind-powered electricity generation maximum digestion capability that can be provided by is corresponding Hot tank heat release power is multiplied by fixing hourage τ.I.e.: C (i)=max (Phs (i, t)-Phmin (i)) τ,

Then in system, the heat-accumulator tank total capacity of configuration is

Can be obtained fom the above equation, the heat-accumulator tank capacity of pure condensate crew qiting is 0.

Simultaneously, it is assumed that the heat release of each heat-accumulator tank, accumulation of heat Power Limitation are certain identical multiple of its capacity, so Receiving in the middle of process abandoning emaciation due to emotional upset, each thermoelectricity unit and the behavior of heat-accumulator tank and effect are regarded as identical.

Step 102, according to described systematic parameter calculate described power system configuration heat-accumulator tank before the original of day part abandon wind Power；

Specifically, according to systematic parameter, the thermal power plant unit to day part start, it is determined according to its heat supply level " with The fixed electricity of heat " minimum load, use formula

Pels (j, t)=Cm (j) Phs (j, t)+K (j) j ∈ CHP (1)

The minimum electricity calculating thermal power plant unit is exerted oneself, and wherein, (j, is t) that the minimum electricity of thermal power plant unit is exerted oneself to described Pels, institute Stating the unit parameter that Cm, K are thermoelectricity unit, Cm=Δ Pel/ Δ Ph represents unit back pressuce slope of a curve, often can be approximately considered Number, K is constant；(j t) is the thermal power plant unit i heat supply level in t to Phs；CHP is thermoelectric perpetual motion machine group # set；

Use formula

Pels (k, t)=Pelmin (k) U (k, t) k ∈ CON (2)

The minimum electricity calculating pure condensate unit is exerted oneself, wherein, described Pels (k, t) be pure condensate start unit k in t Little electricity is exerted oneself, and Pelmin is that the minimum electricity of unit is exerted oneself, its minimum steady combustion load and minimum operational mode determine, (k t) is U Pure condensate unit k is in the startup-shutdown state of t, and value is 1 expression start, and value is that 0 expression is shut down；CON is pure condensate machine group # collection Close；

Minimum electricity according to described thermal power plant unit is exerted oneself and the minimum electricity of described pure condensate start unit is exerted oneself when determining each Section system minimum electricity exert oneself into

$\underset{i=1}{\overset{N}{\Σ}}Pels(i,t)---\left(3\right)$

Wherein, thermoelectricity unit and total number of units of pure condensate unit during described N is described power system；

Minimum electricity according to described system is exerted oneself and is determined that the original wind power of abandoning of this period is:

$Pwabs\left(t\right)=max(0,\underset{i=1}{\overset{N}{\Σ}}Pels(i,t)-(PDel\left(t\right)-wind\left(t\right)\left)\right)---\left(4\right)$

Wherein, described PDel (t)-wind (t) is the equivalent load of power system of t.As shown in Figure 2.

Wind power and formula is abandoned according to described day part is original

$Qwabs=\underset{t=1}{\overset{T}{\Σ}}Pwabs\left(t\right)---\left(5\right)$

Calculating that described system is original abandons wind-powered electricity generation amount Qwabs, in formula, T is period sum.

Step 103, judge described heat-accumulator tank duty and abandon landscape condition, if abandoning wind and described heat-accumulator tank heat is the most complete Portion discharge, then according to described heat-accumulator tank heat release Power Limitation, original abandon wind Power Limitation, thermoelectricity unit climbing rate limit calculate institute Stating the system operational parameters of heat-accumulator tank exothermic process, if not storing full without abandoning wind and described heat-accumulator tank, then storing according to described heat-accumulator tank Thermal power restriction, equivalent load Power Limitation, thermoelectricity unit climbing rate limit the system work calculating described heat-accumulator tank heat-accumulating process Making parameter, described system operational parameters includes: the amount of stored heat abandoning wind power and heat-accumulator tank after system configuration heat-accumulator tank；

Specifically, after the present embodiment cycle calculations thermal power plant unit configures heat-accumulator tank, day part abandons wind power

Thermoelectricity unit configuration heat-accumulator tank after, its minimum load point can with (Phs (and i, t), on the basis of Pels (i, t)), It is adjusted by adjusting heat-accumulator tank charge and discharge thermal power.

Wind power is abandoned after using following steps to calculate configuration accumulation of heat:

1. set HS (i, 0)=C (i) i ∈ 1..N, represent that the heat-accumulator tank of all crew qiting has stored full before initial time the most Heat；

2. t=1 is taken；

3. all operating states of the units of t are judged, if meeting HS (i, t-1) > 0Pwabs (t) > 0 (wherein HS (i, t-1) It is the heat-accumulator tank of i-th crew qiting amount of stored heat after the t-1 moment terminates), now corresponding heat-accumulator tank answers heat release with wind of dissolving Electricity, thermal power plant unit minimum load point should be so that ((i, t), on the basis of Pels (i, t)), along Fig. 1, BC section moves down Phs, turns heat-accumulator tank and puts Hot calculating process A；If meeting HS (i, t-1) < C (i) Pwabs (t)=0, now corresponding heat-accumulator tank should try one's best many accumulation of heats in case abandoning Wind arrives, and thermal power plant unit minimum load point should be so that ((i t), moves in BC section along Fig. 1 on the basis of Pels (i, t)), turns accumulation of heat Phs Tank accumulation of heat calculates process B；Other situations, heat-accumulator tank not accumulation of heat also not heat release, turn calculating process C；

If the most now t=T, represent that all moment unit minimum electricity are exerted oneself, heat is exerted oneself, heat-accumulator tank amount of stored heat and system abandon wind Power etc. have calculated complete the most, go to step 5.；Otherwise make t=t+1, turn subsequent time and calculate, return step and 3. judge t bar Part；

5. calculate and terminate, by unit Pel (i, t), Ph (i, t), HS (i, t), the data summarization such as Pwab (t) exporting.

Wind power of abandoning after computer system configurations heat-accumulator tank includes heat-accumulator tank exothermic process and heat-accumulating process:

A, heat-accumulator tank heat release calculation process:

Exothermic process need to consider the constraint of thermoelectricity unit traffic coverage, abandon wind Power Limitation, heat-accumulator tank heat release Power Limitation, heat Group of motors climbing rate limits, calculate t each thermoelectricity unit heat exert oneself Ph (i, t), " electricity determining by heat " and minimum electricity exert oneself Pel (i, t) and t terminates rear heat-accumulator tank amount of stored heat, concrete model is as follows:

Maximum according to the configured heat-accumulator tank of thermal power plant unit can be exerted oneself with corresponding unit heat and can decline space by heat release power First ratio and original abandon wind power exert oneself with thermal power plant unit electricity can decline space sum the second ratio or described first ratio Value and original abandon the electricity that wind power and thermal power plant unit reduce exert oneself sum the 3rd ratio correction described in the minimum electricity of thermal power plant unit Exert oneself and corresponding heat is exerted oneself；

The power that draws gas according to thermal power plant unit limits the heat of the described thermal power plant unit of correction and exerts oneself and corresponding minimum with climbing rate Electricity is exerted oneself；

Exert oneself according to described revised heat and correspondence minimum electricity output calculation heat-accumulator tank amount of stored heat with abandon wind power.

A1, employing formula

$\mathrm{\&alpha;}(i,t)=\frac{min\left(HS\right(i,t-1),Down\left(i\right))\&CenterDot;U(i,t)}{\left(Phs\right(i,t)-Ph\min (i\left)\right)}---\left(6\right)$

Calculate thermal power plant unit heat release power and described thermal power plant unit heat exert oneself can decline space the first ratio cc (i, t), its In, HS (i, t-1) is heat-accumulator tank remaining heat after the t-1 moment terminates of thermoelectricity unit i configuration, and Down (i) is thermoelectric perpetual motion machine The exothermic maximum power of group the configured heat-accumulator tank of i, takes advantage of certain constant for heat-accumulator tank capacity, so formula Middle molecule represents thermal power plant unit The configured heat-accumulator tank of i at most can liberated heat in t；Phmin (i) be thermal power plant unit i under back pressure operating mode corresponding its The exert oneself heat of Pelmin of little electricity is exerted oneself, so denominator represents that thermal power plant unit i exerts oneself in the most reducible heat of t in formula；Formula Middle molecule represents the heat release power that the configured heat-accumulator tank of this unit can be provided by t, and denominator represents that this unit heat is exerted oneself can The space declined, " heat is exerted oneself " that the heat-accumulator tank that therefore parameter alpha is configured in order to represent thermoelectricity unit can supplement in t and this The magnitude relationship that the heat that unit can decline is exerted oneself.

If (i, t) > 1 represents that the heat-accumulator tank of i-th crew qiting is more than corresponding machine at the heat release power that t is provided that to α The hot space that can decline of exerting oneself of group, now the heat of unit is exerted oneself and is considered as unit operation interval and abandons wind Power Limitation, goes to step A2；

Otherwise, represent the heat release power that is provided that of heat-accumulator tank of i-th crew qiting less than or equal to unit heat exert oneself can under The space of fall, can heat release power decision each unit heat should be exerted oneself by the heat-accumulator tank of crew qiting, i.e. the hot output drop of thermal power plant unit The heat release power that space is provided that equal to corresponding heat-accumulator tank, now goes to step A3, it is considered to heat-accumulator tank heat release Power Limitation；

A2, according to formula

$\mathrm{\&beta;}\left(t\right)=\frac{Pwabs\left(t\right)}{\underset{i=1}{\overset{N}{\&Sigma;}}\left(Pels\right(i,t)-Pel\min (i\left)\right)\&CenterDot;U(i,t)}---\left(7\right)$

Calculate original wind power and the thermal power plant unit electricity abandoned to exert oneself the second ratio beta (t) of the space sum that can decline；

Formula Middle molecule is that original when not configuring heat-accumulator tank of unit abandons wind power, and denominator represents all start thermoelectricity units electricity Exerting oneself the space sum (pure condensate start unit electricity is exerted oneself, and can to decline space be 0) that can decline, therefore parameter beta represents that t is original Abandon wind power and all start thermoelectricity unit electricity to exert oneself the magnitude relationship of the space sum that can decline.

If β (t) > 1, in expression system, original wind power of abandoning is exerted oneself the space that can decline more than all start thermoelectricity unit electricity Sum, therefore the minimum load point of all thermal power plant unit should be arranged on point (Phmin (i), Pelmin (i)), i.e. Pel (i, t)= Pelmin (i) Ph (i, t)=Phmin (i)；

Otherwise, in expression system original abandon wind power less than or equal to all thermal power plant unit electricity exert oneself the space that can decline it With, thermal power plant unit electricity exert oneself decline space should thus time original wind power decision of abandoning, consider and adopt to the power system of current China Use balance dispatching mode, therefore all thermal power plant unit electricity are exerted oneself and all should be declined by beta ratio, thus while ensureing unit balance dispatching Dissolve and all abandon wind, i.e.

Pel (i, t)=Pels (i, t)-β (t) (Pels (i, t)-Pelmin (i))

$Ph(i,t)=\frac{Pel(i,t)-K\left(i\right)}{Cm\left(i\right)}---\left(8\right)$

Go to step A4, it is considered to thermoelectricity unit climbing rate limits；

Revise the minimum electricity of described thermal power plant unit exert oneself Pel (i, t) and corresponding heat exert oneself Ph (i, t)；

A3, by α described in A1 (i, t)≤1, i-th unit heat of t exert oneself into:

Ph (i, t)=Phs (i, t)-min (HS (i, t-1), Down (i)) U (i, t)

Pel (i, t)=Cm (i) Ph (i, t)+K (i) (9)

Calculate described thermal power plant unit heat to exert oneself and corresponding minimum electricity is exerted oneself, and according to formula

$\mathrm{\&eta;}\left(t\right)=\frac{Pwabs\left(t\right)}{\underset{i=1}{\overset{N}{\&Sigma;}}\left(Pels\right(i,t)-Pel(i,t\left)\right)}---\left(10\right)$

Calculate and original abandon the electricity that wind power and thermal power plant unit reduce and exert oneself the 3rd ratio η (t) of sum；In order to verify heat supply Whether the electricity that unit reduces sum of exerting oneself exceedes and original abandons wind power.In formula, denominator represents what all thermal power plant unit of t reduced Electricity is exerted oneself sum.

If η (t) < 1, represent that the electricity that all thermal power plant unit of t reduce sum of exerting oneself exceedes original wind power of abandoning, corresponding fall Low heat is exerted oneself and has the most just been exceeded the demand that the heat that wind should reduce is exerted oneself of abandoning for dissolving, and now heat-accumulator tank is also accomplished by releasing more Heat.For making full use of heat-accumulator tank amount of stored heat, moment thermal power plant unit electricity, heat to this is needed to exert oneself and carry out according to original wind power of abandoning Revising, formula is as follows:

Pel (i, t)=Pels (i, t)-η (t) (Pels (i, t)-Pel (i, t))

$Ph(i,t)=\frac{Pel(i,t)-K\left(i\right)}{Cm\left(i\right)}---\left(11\right)$

Revising the minimum electricity of described thermal power plant unit to exert oneself and corresponding heat is exerted oneself, the electricity making thermal power plant unit reduce just is exerting oneself sum Wind power is abandoned well equal to original；

Otherwise, represent electricity sum of exerting oneself that thermal power plant unit reduces not less than original wind power of abandoning, now thermal power plant unit is electric, hot Exert oneself and be not required to revise.

Go to step A4, it is considered to thermoelectricity unit climbing rate limits；

If A4 is t=1, it is not required to consider that thermoelectricity unit climbing rate limits, goes to step A5；

Otherwise, the thermoelectricity unit (i.e. thermal power plant unit) starting shooting the t-1 moment, according to shown in Fig. 1 and formula

P (i, t)=Pel (i, t)+Cv (i) Ph (i, t) (12)

Up (i, t)=max (0, P (i, t)-P (i, t-1)) (13)

Down (i, t)=max (0, P (i, t-1)-P (i, t)) (14)

The upper climbing power of draw gas power and the described thermal power plant unit of calculating thermal power plant unit and lower climbing power, wherein, for The reduction amount of generated output under many extractions unit heat supply heat when thermoelectricity unit throttle flow is constant, for thermal power plant unit i in t Draw gas power；It is respectively thermal power plant unit i at the upper climbing power of t and lower climbing power；

If lower climbing power is more than power of climbing under described thermal power plant unit maximum, then should be scaled unit t Electricity, heat are exerted oneself, i.e.

$Ph(i,t)=Ph(i,t-1)-\frac{downramp\left(i\right)}{Cm\left(i\right)+Cv\left(i\right)}$

Pel (i, t)=Cm (i) Ph (i, t)+K (i) (15)

Wherein, Pel (i, t-1), Ph (i, t-1) are respectively the electricity of t-1 moment unit, heat is exerted oneself.

If upper climbing power is more than power of climbing in described thermal power plant unit maximum, then should be scaled unit t Electricity, heat are exerted oneself, i.e.

Pel (i, t)=Cm (i) Ph (i, t)+K (i) (16)

If this unit t-1 moment does not starts shooting, then the minimum load point of t unit run on (Phs (and i, t), Pels (i, t))。

Go to step A5, calculate the amount of stored heat of all heat-accumulator tanks after t terminates；

A5, t terminate rear amount of stored heat

$HS(i,t)=max(0,HS(i,t-1)-\underset{i=1}{\overset{N}{\&Sigma;}}(Phs\left(i,t\right)-Ph\left(i,t\right))---\left(17\right)$

(i, t), β (t), η (t), goes to step A6, calculates t system after thermoelectricity crew qiting heat-accumulator tank to empty parameter alpha Abandon wind power；

After A6, thermoelectricity crew qiting heat-accumulator tank, system t is abandoned wind and is

$Pwab\left(t\right)=max(0,\underset{i=1}{\overset{N}{\&Sigma;}}Pel(i,t)-(PDel\left(t\right)-wind\left(t\right)\left)\right)---\left(18\right)$

Turn above-mentioned steps 4.；

B, heat-accumulator tank accumulation of heat calculating process:

Maximum according to heat-accumulator tank can accumulation of heat power exert oneself with heat can the 4th ratio of the rising space and the heat of thermal power plant unit Elelctrochemical power generation power regulating range and thermal power plant unit electricity exert oneself can the 5th ratio of rising space sum or described 4th ratio and The electricity of transconversion into heat generated output range of accommodation and thermal power plant unit exert oneself rising value sum the 6th ratio correction described in thermal power plant unit Heat is exerted oneself；

The power that draws gas according to thermal power plant unit limits the minimum electricity of the described thermal power plant unit of correction and exerts oneself and corresponding with climbing rate Heat is exerted oneself；

Exert oneself according to described revised heat and corresponding minimum electricity output calculation heat-accumulator tank amount of stored heat with abandon wind power.

Specifically, heat-accumulating process need to consider that the constraint of thermoelectricity unit traffic coverage, equivalent load Power Limitation, heat-accumulator tank store Thermal power limits, thermoelectricity unit climbing rate limits, calculate t each thermoelectricity unit heat exert oneself Ph (i, t), " electricity determining by heat " Little electricity exert oneself Pel (i, t), and calculates t and terminates rear heat-accumulator tank amount of stored heat, and concrete model is as follows:

B1, calculate parameter S (t), represent in Fig. 3 " maximum heat dissolves power+pure condensate minimum load " curve t value and System equivalent load is in the minima of both values of t, i.e.

$S\left(t\right)=\min \left(\underset{i\&Element;UCHP\left(t\right)}{\&Sigma;}Pelh\max \right(i)+\underset{j\&Element;UCON\left(t\right)}{\&Sigma;}Pel\min (j),PDel(t)-wind(t\left)\right)---\left(19\right)$

Calculating system thermal power plant unit maximum heat dissolves power and pure condensate start unit minimum load sum at the value of t and t Time both etching system equivalent loads minima, wherein, UCHP (t) is the t Phs (unit (i.e. thermal power plant unit) of i, t) > 0 Numbering set；UCON (t) be t Phs (i, the numbering set of the start unit (i.e. pure condensate start unit) of t)=0, Pelhmax (i) is that the exert oneself electricity of Phmax of thermoelectricity unit i correspondence maximum heat is exerted oneself；

Use formula

$\mathrm{\&gamma;}(i,t)=\frac{\min \left(C\right(i)-HS(i,t-1),Up(i\left)\right)}{\left(Ph\max \right(i)-Phs(i,t\left)\right)}\&CenterDot;U(i,t)---\left(20\right)$

The maximum calculating the configured heat-accumulator tank of thermal power plant unit can be exerted oneself with corresponding thermal power plant unit heat and can rise by accumulation of heat power 4th ratio in space, wherein C (i)-HS (i, t-1) represents that the remaining accumulation of heat of heat-accumulator tank of i-th crew qiting of t is empty Between, Up (i) represents the maximum accumulation of heat power of the heat-accumulator tank of i-th crew qiting, takes advantage of certain constant for heat-accumulator tank capacity.Described γ (i t) represents that the accumulation of heat power that is provided that of heat-accumulator tank of i-th crew qiting of t is exerted oneself with corresponding unit heat the sky that can rise Between ratio, formula Middle molecule represents the accumulation of heat power that the configured heat-accumulator tank of this unit can be provided by t, and denominator represents this machine The hot space that can rise of exerting oneself of group, the heat-accumulator tank that therefore parameter γ is configured in order to represent thermoelectricity unit is provided that in t The magnitude relationship that the heat that accumulation of heat power and this unit can rise is exerted oneself.

If (i, t) > 1 represents that the accumulation of heat power that the heat-accumulator tank of i-th crew qiting of t is provided that is more than corresponding machine to γ The hot space that can rise of exerting oneself of group, now goes to step B2, it is considered to unit operation interval and equivalent load Power Limitation；

Otherwise, represent that the accumulation of heat power that the heat-accumulator tank of i-th crew qiting of t is provided that is exerted oneself less than or equal to unit heat The space that can rise, should can accumulation of heat power decision each unit heat exert oneself the rising space by the heat-accumulator tank of crew qiting, now turn Step B3, it is considered to heat-accumulator tank accumulation of heat Power Limitation；

B2, according to formula

$\mathrm{\&sigma;}\left(t\right)=\frac{S\left(t\right)-\underset{i=1}{\overset{N}{\&Sigma;}}Pels\left(i\right)\&CenterDot;U(i,t)}{\underset{i\&Element;UCHP\left(t\right)}{\&Sigma;}\left(Pelh\max \right(i)-Pels(i,t\left)\right)}---\left(21\right)$

Transconversion into heat generated output range of accommodation and the thermal power plant unit electricity of calculating system is exerted oneself can the 5th ratio of rising space sum Value, the transconversion into heat generated output range of accommodation of thermal power plant unit total in formula Middle molecule expression system, denominator represents all thermal power plant unit Electricity is exerted oneself the space sum that can rise, the transconversion into heat generated output range of accommodation of therefore total in parameter σ expression system thermal power plant unit Exert oneself the magnitude relationship of the space sum that can rise with all thermal power plant unit electricity.

Otherwise, the transconversion into heat generated output range of accommodation of thermal power plant unit total in expression system is less than or equal to all thermal power plant unit Electricity is exerted oneself the space sum that can rise, the rising space that thermal power plant unit electricity is exerted oneself should thus time the total transconversion into heat generated output of system adjust Adjusting range determines, it is contemplated that the power system of current China uses balance dispatching mode, thus all thermal power plant unit electricity exert oneself should be by σ ratio Example rises, thus mostly is heat-accumulator tank storing heat while ensureing unit balance dispatching as far as possible, i.e.

Pel (i, t)=Pels (i, t)+σ (t) (Pelhmax (i)-Pels (i, t))

$Ph(i,t)=\frac{Pel(i,t)-K\left(i\right)}{Cm\left(i\right)}---\left(22\right)$

Go to step B4, it is considered to thermoelectricity unit climbing rate limits；

B3, by γ described in B1 (i, the heat-accumulator tank of t)≤1, i-th unit crew qiting can accumulation of heat power be each unit heat Exert oneself the rising space, i.e.

Ph (i, t)=Phs (i, t)+min (C (i)-HS (i, t-1), Up (i))

Pel (i, t)=Cm (i) Ph (i, t)+K (i) (23)

Calculate described thermal power plant unit heat to exert oneself and corresponding minimum electricity is exerted oneself, and according to formula

$\mathrm{\&theta;}\left(t\right)=\frac{S\left(t\right)-\underset{i=1}{\overset{N}{\&Sigma;}}Pels(i,t)\&CenterDot;U(i,t)}{\underset{i=1}{\overset{N}{\&Sigma;}}\left(Pel\right(i,t)-Pels(i,t\left)\right)}---\left(24\right)$

The electricity calculating described system thermal elelctrochemical power generation power regulating range and thermal power plant unit is exerted oneself the 6th ratio of rising value sum Value；Formula Middle molecule represents the transconversion into heat generated output range of accommodation that t system is total, and denominator represents that the electricity of t thermal power plant unit goes out Power rising value sum, therefore parameter θ represents that the total transconversion into heat generated output range of accommodation of t system goes out with the electricity of its thermal power plant unit The magnitude relationship of power rising value sum.

If θ (t) < 1, represent t thermal power plant unit electricity exert oneself rising value sum exceed t system total transconversion into heat generating Power regulating range, for avoiding generation to abandon wind, thermal power plant unit electricity, heat are exerted oneself and should be revised as follows:

Pel (i, t)=Pel (i, t)-θ (t) (Pel (i, t)-Pels (i, t))

$Ph(i,t)=\frac{Pel(i,t)-K\left(i\right)}{Cm\left(i\right)}---\left(25\right)$

Otherwise, represent t thermal power plant unit electricity exert oneself rising value sum total not less than now etching system transconversion into heat generating Power regulating range, therefore thermal power plant unit electricity, heat are exerted oneself and are not required to revise.

Go to step B4, it is considered to thermoelectricity unit climbing rate limits；

If B4 is t=1, it is not required to consider that thermoelectricity unit climbing rate limits, goes to step B5；

Otherwise, the thermoelectricity unit that the t-1 moment is started shooting, calculate P (i, t) value of-P (i, t-1).

If thermal power plant unit draws gas, the upper climbing power of power is more than power of climbing in described thermal power plant unit maximum, then should by than Example adjusts the electricity of unit t, heat is exerted oneself, i.e.

Pel (i, t)=Cm (i) Ph (i, t)+K (i) (26)

If thermal power plant unit draws gas, the lower climbing power of power is more than power of climbing under described thermal power plant unit maximum, then should by than Example adjusts the electricity of unit t, heat is exerted oneself, i.e.

$Ph(i,t)=Ph(i,t-1)-\frac{downramp\left(i\right)}{Cm\left(i\right)+Cv\left(i\right)}$

Pel (i, t)=Cm (i) Ph (i, t)+K (i) (27)

If this unit t-1 moment does not starts shooting, then t unit minimum load point should be arranged at (Phs (and i, t), Pels (i, t))。

Go to step B5, calculate the amount of stored heat of all heat-accumulator tanks after t terminates；

B5, t terminate rear amount of stored heat

$HS(i,t)=HS(i,t-1)+\underset{i=1}{\overset{N}{\&Sigma;}}\left(Ph\right(i,t)-Phs(i,t\left)\right)---\left(28\right)$

Empty parameter S (t), (i t), σ (t), θ (t), goes to step B6 to γ；

After B6, thermoelectricity crew qiting heat-accumulator tank, system t is abandoned wind and is

$Pwab\left(t\right)\max (0,\underset{i=1}{\overset{N}{\&Sigma;}}Pel(i,t)-(PDel\left(t\right)-wind\left(t\right)\left)\right)---\left(29\right)$

Avoid because accumulation of heat causes the situation of wind of abandoning because heat-accumulating process has contemplated that, therefore abandoning wind power is 0；

Turn above-mentioned steps 4.；

C, other situations, i.e. (when heat-accumulator tank drains heat and abandons wind or heat-accumulator tank stores full heat and during without abandoning wind) HS (i, t-1)=0Pwabs (t) > 0 or HS (i, t-1)=C (i) Pwabs (t)=0, heat-accumulator tank neither accumulation of heat also not heat release, keep Running status when thermoelectricity unit is unworthy of putting heat-accumulator tank, i.e.

Ph (i, t)=Phs (i, t)

Pel (i, t)=Pels (i, t) (30)

Now, it is identical with the situation not configuring heat-accumulator tank that the system after configuration heat-accumulator tank abandons wind power, each heat-accumulator tank accumulation of heat Amount did not changed compared with the t-1 moment；Turn above-mentioned steps 4.；

Step 104, according to system of abandoning described in the wind power calculation configuration accumulation of heat of day part after described system configuration heat-accumulator tank Wind-powered electricity generation amount of abandoning total after tank, and combine described original wind-powered electricity generation amount of abandoning and calculate and abandon emaciation due to emotional upset and receive electricity, including:

Configure the heat-accumulator tank of described capacity according to described system after, day part abandons wind power and formula

$Qwab=\underset{t=1}{\overset{T}{\&Sigma;}}Pwab\left(t\right)---\left(31\right)$

After calculating the heat-accumulator tank of the described capacity of configuration, described system abandons wind-powered electricity generation amount Qwab

Original wind-powered electricity generation amount Qwabs is abandoned and described system abandons wind-powered electricity generation amount Qwab and formula according to described

Q=Qwabs-Qwab (32)

Calculate described system to configure the emaciation due to emotional upset of abandoning of described capacity heat-accumulator tank and receive electricity.

In the present invention, steam power plant's configuration heat-accumulator tank is dissolved and is abandoned wind principle, as shown in Figure 4, when steam power plant's configuration heat-accumulator tank it After, abandoning the wind period, by heat-accumulator tank heat release, steam turbine heat demand can reduced, thus reduce steam turbine " electricity determining by heat " Minimum load, reduce system minimum load level, as in Fig. 4 " HLKJI " shown in section, it can be seen that the reduction of minimum load Concede space for wind-powered electricity generation online, dissolved and abandon wind-powered electricity generation amount as shown in diagonal line hatches part right in Fig. 4.Wherein, heat-accumulator tank heat release disappears Receive wind process of abandoning: for the thermoelectricity unit of every start, when heat-accumulator tank heat release, its steam turbine heating power reduces accordingly and (subtracts A small amount of heat release power equal to heat-accumulator tank), thus its " electricity determining by heat " minimum load can be reduced, concede space for wind-powered electricity generation online. It is said that in general, for wind-powered electricity generation concede online space depend on heat-accumulator tank supplement heat release power.Heat-accumulator tank heat release power is the biggest, vapour The thermic load that turbine is undertaken is the least, " electricity determining by heat " minimum load the lowest, the online space conceded for wind-powered electricity generation is also more Greatly.But, according to the steam turbine electric heating operation characteristic shown in Fig. 1 it can be seen that the thermic load undertaken when steam turbine is less than During Phmin, continue through increase heat-accumulator tank heat release power and reduce steam turbine thermic load and no longer can reduce steam turbine minimum electricity and exert oneself. Now, the minimum electricity of steam turbine is exerted oneself and is reached minimum, and the minimum electricity of system is exerted oneself and the most just reached minimum, in Fig. 4 " LK " section institute Showing, the online space conceded for wind-powered electricity generation the most just reaches maximum.This is the constraint of thermoelectricity unit traffic coverage.

When system need that thermoelectricity unit dissolves abandon wind power less than its maximum that can increase dissolve space time, can lead to Cross the mode controlling every unit heat-accumulator tank heat release power so that the space of always dissolving that all thermal power plant unit are provided is exactly equal to Abandon wind power, as in Fig. 4 " HL " shown in section, to reduce the use to accumulation of heat as far as possible.This is for abandoning wind power constraint.

Owing to the amount of stored heat of heat-accumulator tank is the most limited, when system abandon the wind time longer time, it is likely that when the storage of heat-accumulator tank Still existing when heat discharges completely and abandon wind, now for meeting heating demand, the heat supply level of steam turbine needs again to bring up to Heating demand level, the minimum load of electricity determining by heat is also restored to the level before heat-accumulator tank heat release, in Fig. 4 " KJI " section Shown in.This is heat-accumulator tank heat release power constraint.

In addition to being affected by above-mentioned factor, the adjustment process carried out because heat-accumulator tank coordinates at steam turbine minimum load is worked as In, also suffer from steam turbine output and regulate the speed (i.e. thermoelectricity unit climbing rate) restriction, heat-accumulator tank heat release Power Limitation (also The part consideration of heat-accumulator tank heat release power constraint can be made) etc. the impact of factor.Wherein, heat-accumulator tank heat-accumulating process: heat-accumulator tank is wanted Can dissolve abandon wind abandoning the heat release of wind period, it is necessary to carry out accumulation of heat in advance abandoning before wind arrives.Owing to context of methods is only Assessment steam power plant configuration heat-accumulator tank after abandon landscape condition, so assume heat-accumulator tank use following operation reserve: heat-accumulator tank heat is not Store full and this moment without abandoning wind time, then improve as far as possible thermoelectricity unit heating power (such as Fig. 1, corresponding " electricity determining by heat " minimum electricity goes out Power improves the most accordingly) to heat-accumulator tank accumulation of heat, full to be stored by heat-accumulator tank as early as possible, what reply may face abandons landscape condition；And in accumulation of heat When tank heat does not drains and wind is abandoned in the existence of this moment, then according to abandoning wind and heat-accumulator tank emission capacity, reduce steam turbine power generation power, Not enough heat supply part is then met by heat-accumulator tank heat release.

According to above-mentioned strategy, abandoning the wind period non-, the steam turbine of thermoelectricity unit should carry out peak power storage to heat-accumulator tank Heat, it means that now the heating power of steam turbine should be set as that Phmax, now corresponding minimum electricity exert oneself be Fig. 1 The generated output that middle B point is corresponding, i.e. Pelhmax.All thermoelectricity units, the now minimum load of system such as Fig. 4 in integrated system In " CD " shown in section.This is the constraint of thermoelectricity unit traffic coverage.

During owing to running, it is impossible to cause because of accumulation of heat and abandon wind, therefore, it is less than when load curve equivalent in Fig. 4 " CD " During section line, now should reduce accumulation of heat power, to avoid excessive the causing of minimum load to abandon wind, in Fig. 4 " BC " and " DE " section institute Show.This is equivalent load power constraint.

Deaeration turbine traffic coverage and equivalent load curve influence whether outside heat-accumulating process, the climbing rate of steam turbine limits, The accumulation of heat Power Limitation of heat-accumulator tank also influences whether heat-accumulating process.

Illustrate, this example with the actual installation of northeast provinces electrical network and certain year heating period actual operating data for support to confession Landscape condition of abandoning in warm period is carried out by a hour simulation analysis.Wherein the 1-2 month, December for heating mid-term, March for heating latter stage, 11 The moon is In The Initial Period Of Heating, totally 3648 hours, i.e. T=3648.Above-mentioned computational methods overall flow figure, as shown in Figure 5.Wherein heating period Day part electric load uses each fired power generating unit in real system to exert oneself and wind power output sum, and wind power is by historical data and reality Border wind power output matching forms, and each unit parameter uses actual set data, and day part Unit Combination uses actual operating data, Heating period each stage each thermoelectricity unit heating demand is determined by thermal power plant's minimum operational mode and thermoelectricity unit Electrothermal Properties.Its In, for the heat-accumulator tank capacity of each thermoelectricity crew qiting, taking fixing hourage τ=6, then in system, heat-accumulator tank total capacity is

$\begin{array}{c}Cs=\underset{i=1}{\overset{N}{\&Sigma;}}C\left(i\right)=\underset{i=1}{\overset{N}{\&Sigma;}}\max \left(Phs\right(i,t)-Ph\min )\&CenterDot;\mathrm{\&tau;}\\ =25002MWh\end{array}---\left(33\right)$

With reference to existing pilot project, heat-accumulator tank accumulation of heat, heat release Power Limitation constant take 0.13,0.15 respectively.Table 1 is electrical network Power supply installation structure.

Table 1

Carry out simulation calculation in aforementioned manners, abandon wind-powered electricity generation amount without hold over system heating period and reach 4.6x10⁵MWh, accounts for wind-force 10%；After configuration total capacity is the heat-accumulator tank of 25002MWh, abandons wind-powered electricity generation amount in heating period and be decreased to 2.1x10⁵MWh, dissolves and abandons wind Electricity 2.5x10⁵MWh, accounts for and original abandons the 54.2% of wind-powered electricity generation amount.

Heating period is abandoned wind power and is distributed as shown in Figure 6, and as can be seen from Figure, system abandons many points of wind power when not configuring heat-accumulator tank Cloth is at January, February, December, and abandons wind power March and be almost 0；After system configuration heat-accumulator tank, day part is abandoned wind power and is both less than Abandon wind power in original, abandon emaciation due to emotional upset and receive electricity with January, February, November, December for bigger.

Being analyzed as a example by taking typical case's week January, wherein typical case in January week power balance figure is as it is shown in fig. 7, allusion quotation in January Abandoning wind changed power figure type week as shown in Figure 8, typical case in January certain thermal power plant unit heat of week is exerted oneself and thermic load is as it is shown in figure 9, January Certain typical case's week certain thermal power plant unit configured heat-accumulator tank amount of stored heat variation diagram is as shown in Figure 10.It should be noted that thermoelectric perpetual motion machine in Fig. 9 Group is 300MW unit, and the heating demand in January is 276MW, and configuration capacity is the heat-accumulator tank of 122x6=732MWh, such as Figure 10 institute Show.

In corresponding diagram 7, Fig. 8, Fig. 9, Figure 10 each moment systematic electricity balance, abandon wind changed power, thermal power plant unit heat is exerted oneself And the heat-accumulator tank thermal change of configuration, following four kinds of situations can be divided into by the heat-accumulator tank method of operation:

1. less than heat-accumulator tank capacity and wind power (such as Fig. 8, Figure 10 in 32h-46h) is abandoned without original when heat-accumulator tank amount of stored heat Time:

Heat-accumulator tank accumulation of heat (corresponding Figure 10 in 32h-46h), the heat of thermoelectricity unit is exerted oneself and corresponding improves (32h-in corresponding diagram 9 46h, heat raising amount of exerting oneself is equal with heat-accumulator tank accumulation of heat power)；This results in system after steam power plant's configuration heat-accumulator tank " fixed with heat Electricity " minimum load does not configures heat-accumulator tank system minimum load more than steam power plant, but after steam power plant's configuration heat-accumulator tank, system minimum goes out Power dissolves the minima (32h-46h in corresponding diagram 7) of power and pure condensate minimum load sum with both equivalent loads less than maximum heat, Thus ensure not produce to abandon wind power.

2. when heat-accumulator tank amount of stored heat more than 0 and have original abandon wind power (1h-7h in such as Fig. 8, Figure 10) time:

For conceding online space to wind-powered electricity generation, now heat-accumulator tank heat release (1h-7h in corresponding Figure 10), the heat of thermoelectricity unit is exerted oneself Corresponding reduce (1h-7h in corresponding diagram 9, heat reduction amount of exerting oneself is equal with heat-accumulator tank heat release power)；This results in steam power plant's configuration After heat-accumulator tank, system minimum load does not configures heat-accumulator tank system minimum load less than steam power plant, does not configures so that abandoning wind power Heat-accumulator tank system reduces, but after steam power plant's configuration heat-accumulator tank system minimum load more than minimum load sum under pure condensate operating mode with etc. Effect both loads maximum (1h-7h in corresponding diagram 7).

3. it is 0 when heat-accumulator tank amount of stored heat and has original when abandoning wind power (19h-31h in such as Fig. 8, Figure 10):

Heat-accumulator tank cannot heat release with wind-powered electricity generation of dissolving, more accumulation of heat can not make to abandon wind power and increase, therefore heat-accumulator tank neither accumulation of heat Can not heat release (corresponding Figure 10 in 19h-31h), the minimum load point of thermal power plant unit does not the most just configure heat-accumulator tank with thermoelectricity unit Time consistent；So system minimum electricity is exerted oneself (19h-31h in corresponding diagram 7) and abandon wind power (19h-31h in corresponding diagram 8) and thermoelectricity Unit does not configures during heat-accumulator tank identical.

4. when heat-accumulator tank stores full heat but without original abandon wind power (69h-118h in such as Fig. 8, Figure 10) time:

Heat-accumulator tank is not required to heat release and dissolves wind-powered electricity generation, also cannot accumulation of heat to increase amount of stored heat, therefore heat-accumulator tank can not accumulation of heat the most not Heat release (69h-118h in corresponding diagram 8), the minimum load point of thermal power plant unit is consistent when the most just not configuring heat-accumulator tank with thermoelectricity unit； So system minimum electricity is exerted oneself (69h-118h in corresponding diagram 7) and abandon wind power (69h-118h in corresponding diagram 6) and thermoelectricity unit Do not configure during heat-accumulator tank identical, be 0.

Heat-accumulator tank capacity sensitive analysis: Figure 11 abandons wind-powered electricity generation amount by heating period and is become with configuring heat-accumulator tank total capacity in system Changing figure, Figure 12 is that heating period is abandoned emaciation due to emotional upset and received effect with heat-accumulator tank volume change figure, and Figure 13 is that heating period is abandoned emaciation due to emotional upset and received limit electricity With heat-accumulator tank total capacity variation diagram configured in system, fixing hourage excursion in three figures is τ=1..87, i.e. heat-accumulator tank Total capacity is 0..362529MWh.

As seen from Figure 11, becoming big with heat-accumulator tank total capacity, heating period is abandoned wind-powered electricity generation amount and is gradually reduced, until minima 4.2x10⁴MWh, accounts for and original abandons the 9.2% of wind.

As seen from Figure 12, becoming big with heat-accumulator tank total capacity, heating period is abandoned emaciation due to emotional upset and is received effect and (i.e. abandon emaciation due to emotional upset to receive electricity and account for The original ratio abandoning wind-powered electricity generation amount) gradually step up, it is eventually held in maximum 90.8%, and it is big with the change of heat-accumulator tank capacity to improve speed And from fast to slow, it is finally 0.

As shown in figure 13, i.e. τ is often increased a unit, abandon emaciation due to emotional upset and receive the increase of electricity, it is possible to be interpreted as abandoning wind-powered electricity generation The speed that amount reduces.It can be seen that become big with heat-accumulator tank total capacity, the speed abandoning the reduction of wind-powered electricity generation amount is gradually lowered, until finally It is 0.

After the present invention calculates steam power plant's configuration heat-accumulator tank exactly, the emaciation due to emotional upset of abandoning of power system receives electricity, it is achieved thereby that The assessment of the effect of wind electricity digestion after steam power plant's configuration heat-accumulator tank.

Last it is noted that various embodiments above is only in order to illustrate technical scheme, it is not intended to limit；To the greatest extent The present invention has been described in detail by pipe with reference to foregoing embodiments, it will be understood by those within the art that: it depends on So the technical scheme described in foregoing embodiments can be modified, or the most some or all of technical characteristic is entered Row equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology The scope of scheme.

Claims (10)

1. abandon wind power calculation algorithms containing the power system of configuration heat-accumulator tank steam power plant for one kind, it is characterised in that including:

Set power system systematic parameter, described systematic parameter includes: the generation load of system, wind power, unit parameter, The heat-accumulator tank capacity that each unit day part startup-shutdown state and each thermoelectricity unit are configured；

Before calculating described power system configuration heat-accumulator tank according to described systematic parameter, day part original abandons wind power and total former Begin to abandon wind-powered electricity generation amount；

Judge described heat-accumulator tank duty and abandon landscape condition, if abandoning wind and described heat-accumulator tank heat the most all discharges, then root According to described heat-accumulator tank heat release Power Limitation, original abandon wind Power Limitation, thermoelectricity unit climbing rate limit calculate described heat-accumulator tank put The system operational parameters of thermal process, if without abandoning wind and described heat-accumulator tank does not stores full, then according to described heat-accumulator tank accumulation of heat Power Limitation, Equivalent load Power Limitation, thermoelectricity unit climbing rate limit the system operational parameters calculating described heat-accumulator tank heat-accumulating process, described System operational parameters includes: the amount of stored heat abandoning wind power and heat-accumulator tank after system configuration heat-accumulator tank；

Wind is abandoned according to total after the system described in wind power calculation of the abandoning configuration heat-accumulator tank of day part after described system configuration heat-accumulator tank Electricity, and combine described original wind-powered electricity generation amount of abandoning and calculate and abandon emaciation due to emotional upset and receive electricity.

Method the most according to claim 1, it is characterised in that calculate described power system configuration according to described systematic parameter Before heat-accumulator tank, day part original abandons wind power and total original abandons wind-powered electricity generation amount, including:

According to systematic parameter, use formula

Pels (j, t)=Cm (j) Phs (j, t)+K (j) j ∈ CHP (1)

The minimum electricity calculating thermal power plant unit is exerted oneself, wherein, described Pels (j, is t) that the minimum electricity of thermal power plant unit is exerted oneself, described Cm, K is the unit parameter of thermoelectricity unit, and Cm=Δ Pel/ Δ Ph represents unit back pressuce slope of a curve, can be approximately considered constant, and K is Constant；(j t) is the thermal power plant unit j heat supply level in t to Phs；CHP is thermal power plant unit numbering set；

Use formula

Pels (k, t)=Pelmin (k) U (k, t) k ∈ CON (2)

The minimum electricity calculating pure condensate unit is exerted oneself, wherein, described Pels (k, is t) that pure condensate start unit minimum electricity is exerted oneself, Pelmin is that the minimum electricity of unit is exerted oneself, its minimum steady combustion load and minimum operational mode determine, (k t) is pure condensate unit k to U In the startup-shutdown state of t, value is 1 expression start, and value is that 0 expression is shut down；CON is pure condensate machine group # set；

Minimum electricity according to described thermal power plant unit is exerted oneself and the minimum electricity of described pure condensate start unit is exerted oneself and determined that each period is System minimum electricity exert oneself into

$\underset{i=1}{\overset{N}{\&Sigma;}}Pels(i,t)---\left(3\right)$

Wherein, thermoelectricity unit and total number of units of pure condensate unit during described N is described power system；

Minimum electricity according to described system is exerted oneself and is determined that the original wind power of abandoning of this period is:

$Pwabs\left(t\right)=max(0,\underset{i=1}{\overset{N}{\&Sigma;}}Pels(i,t)-(PDel\left(t\right)-wind\left(t\right)\left)\right)---\left(4\right)$

Wherein, described PDel (t)-wind (t) is the equivalent load of t power system.

Wind power and formula is abandoned according to described day part is original

$Qwabs=\underset{t=1}{\overset{T}{\&Sigma;}}Pwabs\left(t\right)---\left(5\right)$

Calculating that described system is original abandons wind-powered electricity generation amount Qwabs, in formula, T is period sum.

Method the most according to claim 1, it is characterised in that according to described heat-accumulator tank heat release Power Limitation, original abandon wind Power Limitation, thermoelectricity unit climbing rate limit the system operational parameters calculating described heat-accumulator tank exothermic process, including:

Maximum according to the configured heat-accumulator tank of thermal power plant unit can be exerted oneself with corresponding thermal power plant unit heat and can decline space by heat release power First ratio and original abandon wind power exert oneself with thermal power plant unit electricity can decline space sum the second ratio or described first ratio Value and original abandon the electricity that wind power and thermal power plant unit reduce exert oneself sum the 3rd ratio correction described in the minimum electricity of thermal power plant unit Exert oneself and corresponding heat is exerted oneself；

The power that draws gas according to thermal power plant unit is exerted oneself with the heat of the climbing rate restriction described thermal power plant unit of correction and corresponding minimum electricity goes out Power；

Exert oneself according to described revised heat and correspondence minimum electricity output calculation heat-accumulator tank amount of stored heat with abandon wind power.

Method the most according to claim 3, it is characterised in that the described maximum according to the configured heat-accumulator tank of thermal power plant unit can Heat release power is exerted oneself with corresponding thermal power plant unit heat and can be declined first ratio in space and original wind power of abandoning goes out with thermal power plant unit electricity Power can decline the second ratio of space sum or described first ratio and original abandon the electricity that wind power and thermal power plant unit reduce and go out The minimum electricity of thermal power plant unit described in 3rd ratio correction of power sum is exerted oneself and corresponding heat is exerted oneself, including:

Use formula

$a(i,t)=\frac{\min \left(HS\right(i,t-1),Down(i\left)\right)\&CenterDot;U(i,t)}{\left(Phs\right(i,t)-Ph\min (i\left)\right)}---\left(6\right)$

The maximum calculating the configured heat-accumulator tank of thermal power plant unit heat release power and described thermal power plant unit heat can be exerted oneself and can decline space (i, t), wherein, HS (i, t-1) is heat-accumulator tank remaining accumulation of heat after the t-1 moment terminates of thermoelectricity unit i configuration to first ratio cc Amount, Down (i) is the exothermic maximum power of thermoelectricity the configured heat-accumulator tank of unit i, and Phmin (i) is that thermal power plant unit i is in back pressure operating mode The exert oneself heat of Pelmin of its minimum electricity of lower correspondence is exerted oneself；

If described first ratio is more than 1, according to formula

$\mathrm{\&beta;}\left(t\right)=\frac{Pwabs\left(t\right)}{\underset{i=1}{\overset{N}{\&Sigma;}}\left(Pels\right(i,t)-Pelmin(i\left)\right)\&CenterDot;U(i,t)}---\left(7\right)$

Calculate original wind power and the thermal power plant unit electricity abandoned to exert oneself the second ratio beta (t) of the space sum that can decline；

Judge described second ratio whether more than 1, if, it is determined that the minimum electricity of described thermal power plant unit is exerted oneself as Pelmin (i), Corresponding heat is exerted oneself as Phmin (i)；If it is not, then according to formula

$\begin{array}{c}Pel(i,t)=Pels(i,t)-\mathrm{\&beta;}\left(t\right)\left(Pels\right(i,t)-Pel\min (i\left)\right)\\ Ph(i,t)=\frac{Pel(i,t)-K\left(i\right)}{Cm\left(i\right)}\end{array}---\left(8\right)$

Revise the minimum electricity of described thermal power plant unit exert oneself Pel (i, t) and corresponding heat exert oneself Ph (i, t)；

If described first ratio is not more than 1, then according to formula

$\begin{array}{c}Ph(i,t)=Phs(i,t)-min\left(HS\right(i,t-1),Down(i\left)\right)\&CenterDot;U(i,t)\\ Pel(i,t)=Cm\left(i\right)\&CenterDot;Ph(i,t)+K\left(i\right)\end{array}---\left(9\right)$

Calculate described thermal power plant unit heat to exert oneself and corresponding minimum electricity is exerted oneself, and according to formula

$\mathrm{\&eta;}\left(t\right)=\frac{Pwabs\left(t\right)}{\underset{i=1}{\overset{N}{\&Sigma;}}\left(Pels\right(i,t)-Pel(i,t\left)\right)}---\left(10\right)$

Calculate and original abandon the electricity that wind power and thermal power plant unit reduce and exert oneself the 3rd ratio η (t) of sum；

If described 3rd ratio is less than 1, according to formula

$\begin{array}{c}Pel(i,t)=Pels(i,t)-\mathrm{\&eta;}\left(t\right)\left(Pels\right(i,t)-Pel(i,t\left)\right)\\ Ph(i,t)=\frac{Pel(i,t)-K\left(i\right)}{Cm\left(i\right)}\end{array}---\left(11\right)$

Revise the minimum electricity of described thermal power plant unit to exert oneself and corresponding heat is exerted oneself；

If described 3rd ratio not less than 1, is not the most revised the minimum electricity of described thermal power plant unit and is exerted oneself and corresponding heat is exerted oneself.

Method the most according to claim 3, it is characterised in that repair with the restriction of climbing rate according to the power that draws gas of thermal power plant unit The heat of the most described thermal power plant unit is exerted oneself and corresponding minimum electricity is exerted oneself, including:

According to formula

P (i, t)=Pel (i, t)+Cv (i) Ph (i, t) (12)

Up (i, t)=max (0, P (i, t)-P (i, t-1)) (13)

Down (i, t)=max (0, P (i, t-1)-P (i, t)) (14)

Calculate the upper climbing power of draw gas power and the described thermal power plant unit of described thermal power plant unit and lower climbing power, wherein, Cv For thermoelectricity unit throttle flow reduction amount of generated output under many extractions unit heat supply heat time constant, (i t) is thermal power plant unit i to P The power that draws gas in t；(i, t), (i t) is respectively thermal power plant unit i in the upper climbing power of t and lower climbing to down to up Power；

If described lower climbing power is more than power of climbing under described thermal power plant unit maximum, then according to formula

$\begin{array}{c}Ph(i,t)=Ph(i,t-1)-\frac{downramp\left(i\right)}{Cm\left(i\right)+Cv\left(i\right)}\\ Pel(i,t)=Cm\left(i\right)\&CenterDot;Ph(i,t)+K\left(i\right)\end{array}---\left(15\right)$

Revising the heat of described thermal power plant unit to exert oneself and corresponding minimum electricity is exerted oneself, wherein downramp (i) is the maximum of thermoelectricity unit i Lower climbing power；

If described upper climbing power is more than power of climbing in described thermal power plant unit maximum, then according to formula

$\begin{array}{c}Ph(i,t)=Ph(i,t-1)+\frac{upramp\left(i\right)}{Cm\left(i\right)+Cv\left(i\right)}\\ Pel(i,t)=Cm\left(i\right)\&CenterDot;Ph(i,t)+K\left(i\right)\end{array}---\left(16\right)$

Revising the heat of described thermal power plant unit to exert oneself and corresponding minimum electricity is exerted oneself, wherein upramp (i) is in the maximum of thermoelectricity unit i Climbing power.

Method the most according to claim 3, it is characterised in that described exert oneself according to described revised heat and correspondence Little electricity output calculation heat-accumulator tank amount of stored heat with abandon wind power, including:

According to formula

$HS(i,t)=max(0,HS(i,t-1)-\underset{i=1}{\overset{N}{\&Sigma;}}(Phs\left(i,t\right)-Ph\left(i,t\right))---\left(17\right)$

Calculate each configured heat-accumulator tank of thermoelectricity unit amount of stored heat in t；

According to formula

$Pwab\left(t\right)=max(0,\underset{i=1}{\overset{N}{\&Sigma;}}Pel(i,t)-(PDel\left(t\right)-wind\left(t\right)\left)\right)---\left(18\right)$

After calculating thermoelectricity crew qiting heat-accumulator tank, system abandons wind power.

Method the most according to claim 1, it is characterised in that described according to described heat-accumulator tank accumulation of heat Power Limitation, equivalence Load power limits, thermoelectricity unit climbing rate limits the system operational parameters calculating described heat-accumulator tank heat-accumulating process, including:

Maximum according to heat-accumulator tank can accumulation of heat power exert oneself with corresponding thermal power plant unit heat can the 4th ratio and heat supply of the rising space The transconversion into heat generated output range of accommodation of unit and thermal power plant unit electricity are exerted oneself can the 5th ratio or described the of rising space sum The electricity of four ratios and transconversion into heat generated output range of accommodation and thermal power plant unit exert oneself rising value sum the 6th ratio correction described in supply The heat of heat engine group is exerted oneself；

The power that draws gas according to thermal power plant unit is exerted oneself with the minimum electricity of the climbing rate restriction described thermal power plant unit of correction and corresponding heat goes out Power；

Exert oneself according to described revised heat and corresponding minimum electricity output calculation heat-accumulator tank amount of stored heat with abandon wind power.

Method the most according to claim 7, it is characterised in that the maximum according to heat-accumulator tank can accumulation of heat power and corresponding heat supply Unit heat is exerted oneself and can the 4th ratio of the rising space, the transconversion into heat generated output range of accommodation of thermal power plant unit be exerted oneself with thermal power plant unit electricity Can the electricity of the 5th ratio of rising space sum or described 4th ratio and transconversion into heat generated output range of accommodation and thermal power plant unit go out Described in 6th ratio correction of power rising value sum, the heat of thermal power plant unit is exerted oneself, including:

Use formula

$S\left(t\right)=min\left(\underset{i\&Element;UCHP\left(t\right)}{\&Sigma;}Pelh\max \right(t)+\underset{j\&Element;UCON\left(t\right)}{\&Sigma;}Pel\min (j),PDel(t)-wind(t\left)\right)---\left(19\right)$

Calculating system thermal power plant unit maximum heat dissolves power and pure condensate start unit minimum load sum in the value of t and t The minima of both equivalent loads, wherein, UCHP (t) is t Phs (the numbering collection of the unit (i.e. thermal power plant unit) of i, t) > 0 Close；UCON (t) is that (i, the numbering set of the start unit (i.e. pure condensate start unit) of t)=0, Pelhmax (i) is t Phs The exert oneself electricity of Phmax of thermoelectricity unit i correspondence maximum heat is exerted oneself；

Use formula

$\mathrm{\&gamma;}(i,t)=\frac{min\left(C\right(i)-HS(i,t-1),Up(i\left)\right)}{\left(Ph\max \right(i)-Phs(i,t\left)\right)}\&CenterDot;U(i,t)---\left(20\right)$

The maximum calculating the configured heat-accumulator tank of thermal power plant unit can accumulation of heat power and thermal power plant unit heat be exerted oneself the of the space that can rise Four ratios, wherein C (i)-HS (i, t-1) represents the heat-accumulator tank remaining accumulation of heat space of i-th crew qiting of t, Up (i) table Showing the maximum accumulation of heat power of the heat-accumulator tank of i-th crew qiting, Phmax (i) is that the maximum heat of thermoelectricity unit i is exerted oneself；

If described 4th ratio is more than 1, then according to formula

$\mathrm{\&sigma;}\left(t\right)=\frac{S\left(t\right)-\underset{i=1}{\overset{N}{\&Sigma;}}Pels\left(i\right)\&CenterDot;U(i,t)}{\underset{i\&Element;UCHP\left(t\right)}{\&Sigma;}\left(Pelh\max \right(i)-Pels(i,t\left)\right)}---\left(21\right)$

The transconversion into heat generated output range of accommodation of calculating system and thermal power plant unit electricity are exerted oneself can the 5th ratio of rising space sum；

If described 5th ratio is more than 1, it is determined that the minimum electricity of described thermal power plant unit is exerted oneself as Pelhmax (i), and corresponding heat is exerted oneself For Phmax (i)；

If described 5th ratio is not more than 1, then according to formula

$\begin{array}{c}Pel(i,t)=Pels(i,t)+\mathrm{\&sigma;}\left(t\right)\left(Pelh\max \right(i)-Pels(i,t\left)\right)\\ Ph(i,t)=\frac{Pel(i,t)-K\left(i\right)}{Cm\left(i\right)}\end{array}---\left(22\right)$

Calculate the electricity of described thermal power plant unit to exert oneself and corresponding heat is exerted oneself；

If described 4th ratio is not more than 1, according to formula

$\begin{array}{c}Ph(i,t)=Phs(i,t)+min\left(C\right(i)-HS(i,t-1),Up(i\left)\right)\\ Pel(i,t)=Cm\left(i\right)\&CenterDot;Ph(i,t)+K\left(i\right)\end{array}---\left(23\right)$

Calculate described thermal power plant unit heat to exert oneself and corresponding minimum electricity is exerted oneself, and according to formula

$\mathrm{\&theta;}\left(t\right)=\frac{S\left(t\right)-\underset{i=1}{\overset{N}{\&Sigma;}}Pels(i,t)\&CenterDot;U(i,t)}{\underset{i=1}{\overset{N}{\&Sigma;}}\left(Pels\right(i,t)-Pel(i,t\left)\right)}---\left(24\right)$

The electricity calculating described system thermal elelctrochemical power generation power regulating range and thermal power plant unit is exerted oneself the 6th ratio of rising value sum；

If described 6th ratio is less than 1, according to formula

$\begin{array}{c}Pel(i,t)=Pels(i,t)-\mathrm{\&eta;}\left(t\right)\left(Pel\right(i,t)-Pels(i,t\left)\right)\\ Ph(i,t)=\frac{Pel(i,t)-K\left(i\right)}{Cm\left(i\right)}\end{array}---\left(25\right)$

Revise the minimum electricity of described thermal power plant unit to exert oneself and corresponding heat is exerted oneself；

If described 6th ratio not less than 1, is not the most revised the minimum electricity of described thermal power plant unit and is exerted oneself and corresponding heat is exerted oneself.

Method the most according to claim 7, it is characterised in that repair with the restriction of climbing rate according to the power that draws gas of thermal power plant unit The heat of the most described thermal power plant unit is exerted oneself and corresponding minimum electricity is exerted oneself, including:

If described thermal power plant unit draws gas, the upper climbing power of power is more than power of climbing in described thermal power plant unit maximum, then according to public affairs Formula

Revise the heat of described thermal power plant unit to exert oneself and corresponding minimum electricity is exerted oneself；

If described thermal power plant unit draws gas, the lower climbing power of power is more than power of climbing under described thermal power plant unit maximum, then according to public affairs Formula

$\begin{array}{c}Ph(i,t)=Ph(i,t-1)-\frac{downramp\left(i\right)}{Cm\left(i\right)+Cv\left(i\right)}\\ Pel(i,t)=Cm\left(i\right)\&CenterDot;Ph(i,t)+K\left(i\right)\end{array}---\left(27\right)$

Revise the heat of described thermal power plant unit to exert oneself and minimum electricity is exerted oneself.

Method the most according to claim 7, it is characterised in that described exert oneself according to described revised heat and correspondence The amount of stored heat of minimum electricity output calculation heat-accumulator tank with abandon wind power, including:

According to formula

$HS(i,t)=HS(i,t-1)+\underset{i=1}{\overset{N}{\&Sigma;}}\left(Ph\right(i,t)-Phs(i,t\left)\right)---\left(28\right)$

Calculate each configured heat-accumulator tank of thermoelectricity unit amount of stored heat in t；

According to formula

$Pwab\left(t\right)=max(0,\underset{i=1}{\overset{N}{\&Sigma;}}Pel(i,t)-(PDel\left(t\right)-wind\left(t\right)\left)\right)---\left(29\right)$

After calculating thermoelectricity crew qiting heat-accumulator tank, system abandons wind power.