CN105278484B - A kind of power distribution network hydroelectric generation and energy storage device conditioning unit and coordination approach - Google Patents
A kind of power distribution network hydroelectric generation and energy storage device conditioning unit and coordination approach Download PDFInfo
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Abstract
A kind of power distribution network hydroelectric generation and energy storage device conditioning unit and coordination approach belong to distribution network technology field, more particularly to a kind of power distribution network hydroelectric generation and energy storage device conditioning unit and coordination approach.The present invention provides a kind of accurate data acquisition, fireballing power distribution network hydroelectric generation and energy storage device conditioning unit and coordination approach.Power distribution network hydroelectric generation of the present invention and energy storage device conditioning unit include generating equipment terminal and control centre end；The generating equipment terminal includes sensor, A/D analog-digital converters, DSP microprocessors, FPGA data computing chip and 4G communication modules, the control centre end includes industrial personal computer and 4G communication modules, the output terminal of the sensor is connected with A/D analog-digital converter input terminals, the output terminal of A/D analog-digital converters is connected with the input terminal of DSP microprocessors, and the output terminal of DSP microprocessors is connected with the input terminal of FPGA data computing chip.
Description
Technical Field
The invention belongs to the technical field of power distribution networks, and particularly relates to a coordination device and a coordination method for hydroelectric generation and energy storage equipment of a power distribution network.
Background
The hydropower is a complex system, how to carry out reservoir dispatching according to the operation characteristics of the hydropower and energy storage equipment, so that the maximum benefit of the existing engineering is brought into play, and the emphasis is more and more placed on the prior hydropower dispatching.
Disclosure of Invention
Aiming at the problems, the invention provides a coordination device and a coordination method for hydroelectric power generation and energy storage equipment of a power distribution network, which have accurate data acquisition and high speed.
In order to achieve the purpose, the technical scheme is that the coordination device for the hydroelectric power generation and the energy storage equipment of the power distribution network comprises a power generation equipment terminal and a dispatching center end; the power generation equipment terminal comprises a sensor, an A/D (analog to digital) converter, a DSP (digital signal processor) microprocessor, an FPGA (field programmable gate array) data calculation chip and a 4G communication module, the dispatching center end comprises an industrial personal computer and the 4G communication module, the output end of the sensor is connected with the input end of the A/D converter, the output end of the A/D converter is connected with the input end of the DSP microprocessor, the output end of the DSP microprocessor is connected with the input end of the FPGA data calculation chip, the output end of the FPGA data calculation chip is connected with a control unit of the power generation equipment and the input end of the 4G communication module, and the control unit of the power generation equipment is connected with a human-computer interaction information display unit;
the sensor comprises a current transformer, a voltage transformer, a temperature sensor, a humidity sensor, a noise sensor and a rainfall sensor, wherein an output port of the current transformer, an output port of the voltage transformer, an output port of the temperature sensor, an output port of the humidity sensor, an output port of the noise sensor and an output port of the rainfall sensor are respectively connected with an input port of the A/D analog-to-digital converter.
As another preferred scheme, the sensor provided by the invention selects a DHC03B type current transformer, a DH51D6V0.4B type voltage transformer, a HE-200 infrared temperature sensor, a STYB3100111A50 type humidity sensor, a CRY2110 type noise sensor and a BL-YW900 type radar liquid level sensor.
As another preferred scheme, the A/D converter adopts a TLC2543 serial A/D converter, the 4G communication transmission unit adopts an LTE module of ME3760 type, the DSP microprocessor adopts a TMS320F2812 chip, the FPGA data calculation chip adopts an EPM7064SLC44 chip, the control unit of the power generation equipment adopts a 51 single chip microcomputer ST89C51 chip, and the man-machine interaction information display module is a liquid crystal display module of HG1286402C type;
the output ends of the current transformer, the voltage transformer, the temperature sensor, the humidity sensor, the noise sensor and the rainfall sensor are respectively connected to the input ends AIN0-AIN5 of the A/D converter TLC2543 after passing through a signal conversion circuit, the output ends EOC, I/O, IN, OUT and CS of the A/D converter TLC2543 are respectively connected to XA1-XA5 pins of the DSP chip TMS320F2812, the XD0-XD7 pins of the TMS320F2812 are respectively connected with IO17-IO21 and IO24-IO26 pins of the FPGA chip EPM7064SLC44, IO4-IO6, IO8, IO9, IO11, IO12 and IO14 pins of the FPGA chip EPM7064SLC44 are respectively connected with P0.0-P0.7 pins of the singlechip STC89C51 chip, P1.0-P1.7 of a single chip STC89C51 chip is connected with D0-D7 of the liquid crystal display module, P2.0-P1.4 of the single chip STC89C51 chip is connected with RS, RW, CS1, CS2 and EN of the liquid crystal display module, RXD and TXD of the STC89C51 chip are connected with an automatic power generation control device, an IO37 pin of an FPGA chip EPM7064SLC44 is connected with a DATA end of a 4G communication module ME3760, and an ATN1 end of the 4G communication module transmits DATA to a UNO-3072 series Pentium M embedded industrial personal computer of a remote dispatching terminal through an antenna.
As another preferred scheme, the signal conversion circuit adopts a TLC4501 chip. (a signal conversion circuit is arranged to ensure the frequency bandwidth, the conversion rate and the voltage gain of signal acquisition and simultaneously reduce the input offset voltage and current and the temperature drift).
Secondly, the 5 pins of the TLC4501 chip of the present invention are respectively connected with one end of the resistor R3, one end of the resistor R4 and the capacitor C 2 One end is connected, the other end of the resistor R4 is connected with a 1.5V power supply, and the capacitor C 2 The other end of the resistor R3 is grounded, the other end of the resistor R3 is respectively connected with a pin 1 of a TLC4501 chip, one end of a resistor R2 and one end of a capacitor C1, the other end of the capacitor C1 is respectively connected with the other end of the resistor R2, a pin 2 of the TLC4501 chip and the output end of the sensor, and a pin 3 of the TLC4501 chip is grounded; pin 7 of the TLC4501 chip is connected to the input port of the a/D converter through resistor R8.
In addition, an XTAL1 pin of the STC89C51 chip is respectively connected with one end of a crystal oscillator and one end of a first 30pF, the other end of the first 30pF is respectively connected with a ground wire, a GND pin of the STC89C51 chip and one end of a second 30pF, and the other end of the second 30pF is respectively connected with the other end of the crystal oscillator and an XTAL2 pin of the STC89C51 chip.
The current, voltage, temperature, humidity, noise and rainfall information is subjected to synchronous sampling, holding and A/D conversion through each sensor, and is converted into digital signals, the digital signals are sent to a DSP chip for data processing, the processed information data are sent to a data input port of an FPGA through a parallel data output interface of the DSP, and then are sent to a 4G communication module through the FPGA to prepare for communication with an industrial personal computer at a remote dispatching end; the industrial personal computer calculates current, voltage, temperature, humidity, noise and rainfall information data, transmits a calculation result to the 4G communication module through the 4G communication network, then transmits the calculation result to the FPGA through the 4G communication module, transmits the data to the singlechip STC89C51 through the FPGA, and the singlechip sends a control command to the automatic power generation control device through the TXD port and displays the control command on the man-machine interaction information display unit.
The invention discloses a coordination method of hydroelectric generation and energy storage equipment of a power distribution network, which comprises the following steps:
step 1: the terminal of the power generation equipment acquires current, voltage, temperature, humidity, noise and rainfall parameters of the hydroelectric power generation equipment and the energy storage equipment, and transmits acquired measured values of the current, voltage, temperature, humidity, noise and rainfall to the 4G communication moduleThe industrial personal computer at the dispatching center end takes current, voltage, temperature, humidity, noise and rainfall as input quantities:
and 2, step: establishing an objective optimization function
Step 2.1: establishing an optimization objective function:
step 2.2: constructing an n-dimensional phase space of hydroelectric power generation and energy storage device state data
And step 3: performing iterative operation on the objective function value of the vertex
Step 3.1: and (3) performing reflection operation on the fixed objective function value:
is the average of the norms of points in phase space, P h Is the original vertex, P, in phase space * New vertices found by reflection operations;
step 3.2: and performing expansion operation on the target function of the vertex:
P ** for new vertices found by the dilation operation, the dilation coefficient γ =1.5;
step 3.3: and (3) performing contraction operation on the target function of the vertex:
if the objective function under the new vertex satisfies f (P) ** )>f(P h ) Then replace all points:
P i ＝(P i +P l )/2 (6)
p in formula (6) i For newly produced phase space phase points, P l The point with the minimum norm in the original phase points is the original lowest phase point;
calculating a certain point on a connecting line of the maximum peak and the gravity center through contraction operation; in the process of reflection, expansion and contraction, when the variable value of each dimension in the vertex vector is less than 0, the variable value is taken as 0; and when the maximum power is larger than the allowed maximum power, taking the maximum power as the number.
And 4, step 4: fast coordination and synchronization are carried out according to characteristic quantities of hydroelectric power generation and energy storage equipment of power distribution network
For the objective function y = minf (x) i )+g(x i )+k(x i ) Carry out solution and penalty functionWherein p is i For hydroelectric and energy-storage installations x i The power is sent out and the power is sent out,is x i Maximum value of power, constraint functionWherein I i Is x i Middle current value, r i Is x i The resistance value t is the running time of the power grid system;
and 5: the scheduling center industrial personal computer calculates the coordination calculation result p i The power is transmitted to a power generation equipment terminal through a 4G communication module, and the power generation equipment terminal adjusts the power output of the hydraulic power generation equipment and the energy storage equipment through a power generation control unit.
As a preferred embodiment, α =0.83 in the present invention.
As a preferable mode, the shrinkage coefficient β =0.5 in the present invention.
The invention has the beneficial effects.
The DSP microprocessor and the FPGA data calculation chip are combined, so that the data acquisition accuracy and comprehensiveness are improved, and the data acquisition speed and precision are improved. According to the invention, through coordination control between the hydraulic power generation equipment and the energy storage equipment in the distribution network, the impact of the hydraulic power generation equipment and the energy storage equipment on the power grid is effectively avoided, the power generation grid-connection efficiency of various power generation equipment in the distribution network is greatly improved, and the operation cost of the hydraulic power generation grid-connection equipment and the energy storage equipment is reduced. And finally obtaining the ideal output level of the hydroelectric power generation equipment and the energy storage equipment through the coordination calculation of the dispatching center. The method has the advantages of improving the power quality, improving the reliability of the power distribution network, the hydroelectric generation equipment and the energy storage equipment, meeting the real-time requirement in the coordination and synchronization process, improving the efficiency of data acquisition and processing, improving the speed and precision of coordination and calculation, and realizing the coordination and synchronization of the hydroelectric generation equipment and the energy storage equipment in the power distribution network by using the advantages of higher precision and shorter response time.
Drawings
The invention is further described with reference to the following figures and detailed description. The scope of the invention is not limited to the following expressions.
Fig. 1 is a schematic block diagram of the circuit of the present invention.
Fig. 2 is a schematic diagram of the circuit of the present invention.
Detailed Description
As shown in the figure, the coordination device for the hydroelectric power generation and the energy storage equipment of the power distribution network comprises a power generation equipment terminal and a dispatching center terminal; the power generation equipment terminal comprises a sensor, an analog-to-digital converter (AD), a Digital Signal Processor (DSP) microprocessor, a Field Programmable Gate Array (FPGA) data calculation chip and a 4G communication module, wherein the dispatching center end comprises an industrial personal computer and the 4G communication module, the output end of the sensor is connected with the input end of the AD, the output end of the AD is connected with the input end of the DSP microprocessor, the output end of the DSP microprocessor is connected with the input end of the FPGA data calculation chip, the output end of the FPGA data calculation chip is connected with a control unit of the power generation equipment and the input end of the 4G communication module, and the control unit of the power generation equipment is connected with a man-machine interaction information display unit.
The sensors are selected from a DHC03B type current transformer, a DH51D6V0.4B type voltage transformer, a HE-200 infrared temperature sensor, a STYB3100111A50 type humidity sensor, a CRY2110 type noise sensor and a BL-YW900 type radar liquid level sensor.
The A/D converter adopts a TLC2543A/D conversion chip.
The DSP microprocessor selects a TMS320F2812 chip.
The FPGA data calculation chip adopts an EPM7064SLC44 chip.
The power generation equipment control unit is a 51-single chip microcomputer ST89C51 chip.
The man-machine interaction information display module is a liquid crystal display module of HG1286402C type.
The 4G communication module is an ME3760 model LTE module.
The output ends of the current transformer, the voltage transformer, the temperature sensor, the humidity sensor, the noise sensor and the rainfall sensor are respectively connected to the input ends AIN0-AIN5 of the A/D converter TLC2543 after passing through a signal conversion circuit, as shown IN figure 2, the output ends EOC, I/O, IN, OUT and CS of the A/D converter TLC2543 are respectively connected to XA1-XA5 pins of a DSP chip TMS320F2812, XD0-XD7 pins of the TMS320F2812 are respectively connected with IO17-IO21 and IO24-IO26 pins of an FPGA chip EPM7064SLC44, IO4-IO6, IO8, IO9, IO11, IO12 and IO14 pins of the FPGA chip EPM7064SLC44 are respectively connected with P0.0-P0.7 of a singlechip STC89C51 chip, P1.0-P1.7 of the single chip STC89C51 chip is connected with D0-D7 of the liquid crystal display module, P2.0-P1.4 of the single chip STC89C51 chip is connected with RS, RW, CS1, CS2 and EN of the liquid crystal display module, RXD and TXD of the STC89C51 chip are connected with an automatic power generation control device, an IO37 pin of an FPGA chip EPM7064SLC44 is connected with a DATA end of a 4G communication module ME3760, and an ATN1 end of the 4G communication module transmits DATA to a UNO-3072 series Pentium M embedded industrial personal computer of a remote dispatching terminal through an antenna.
Current, voltage, temperature, humidity, noise and rainfall information are subjected to synchronous sampling, holding and A/D conversion through each sensor, and are converted into digital signals, the digital signals are sent to a DSP chip for data processing, the processed information data are sent to a data input port of an FPGA through a parallel data output interface of the DSP, and then the data are sent to a 4G communication module through the FPGA to prepare for communication with an industrial personal computer at a remote dispatching end; the industrial personal computer calculates current, voltage, temperature, humidity, noise and rainfall information data, transmits a calculation result to the 4G communication module through the 4G communication network, then transmits the calculation result to the FPGA through the 4G communication module, transmits the data to the singlechip STC89C51 through the FPGA, and the singlechip sends a control command to the automatic power generation control device through the TXD port and displays the control command on the man-machine interaction information display unit.
The invention discloses a coordination method of hydroelectric generation and energy storage equipment of a power distribution network, which comprises the following steps:
step 1: the current, voltage, temperature, humidity, noise, the rainfall parameter of hydroelectric power generation equipment and energy storage equipment are gathered to the power generation equipment terminal, transmit the current, voltage, temperature, humidity, noise, the rainfall measured value of gathering to the industrial computer of dispatch center end through 4G communication module, and current, voltage, temperature, humidity, noise, rainfall are as the input:
and 2, step: establishing an objective optimization function
Step 2.1: establishing an optimization objective function:
step 2.2: constructing an n-dimensional phase space of hydroelectric and energy storage device state data
And step 3: performing iterative operation on objective function value of vertex
Step 3.1: and (3) performing reflection operation on the fixed objective function value:
is the average of the norms of points in phase space, P h Is the original vertex, P, in phase space * For new vertices to be found by reflection operations, α =0.83 is taken for the initial particles to be widely distributed in the feasible space.
Step 3.2: and performing expansion operation on the target function of the vertex:
P ** for new vertices found by the dilation operation, the dilation coefficient γ =1.5.
Step 3.3: and (3) performing contraction operation on the target function of the vertex:
to make the initial vertex distribution more uniform, the midpoint on the connecting line is taken, i.e. the shrinkage factor β =0.5 is taken. If the objective function under the new vertex satisfies f (P) ** )>f(P h ) Then replace all points:
P i ＝(P i +P l )/2 (6)
in formula (6) P i Is a newly produced phase space phase point, P l The original phase point is the point with the minimum norm, namely the original lowest phase point.
And (4) solving a certain point on a connecting line between the maximum value vertex and the gravity center through contraction operation. In the process of reflection, expansion and contraction, when the variable value of each dimension in the vertex vector is less than 0, the variable value is taken as 0; and when the maximum power is larger than the allowed maximum power, taking the maximum power as the number.
And 4, step 4: fast coordination and synchronization are carried out according to characteristic quantities of hydroelectric power generation and energy storage equipment of power distribution network
For the objective function y = minf (x) i )+g(x i )+k(x i ) Solving and punishing the functionWherein p is i For hydroelectric power generation and energy storage devices x i The power is sent out and the power is sent out,is x i Maximum value of power, constraint functionIn which I i Is x i Middle current value, r i Is x i And the resistance value t is the running time of the power grid system.
And 5: the IPC at the dispatching center end leads the coordination calculation result p i The power is transmitted to a power generation equipment terminal through a 4G communication module, and the power generation equipment terminal adjusts the power output of the hydraulic power generation equipment and the energy storage equipment through a power generation control unit.
It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the invention.
Claims (8)
1. A coordination device for hydroelectric generation and energy storage equipment of a power distribution network is characterized by comprising a power generation equipment terminal and a dispatching center terminal; the power generation equipment terminal comprises a sensor, an A/D (analog-to-digital) converter, a DSP (digital signal processor) microprocessor, an FPGA (field programmable gate array) data calculation chip and a 4G communication module, the dispatching center end comprises an industrial personal computer and the 4G communication module, the output end of the sensor is connected with the input end of the A/D converter, the output end of the A/D converter is connected with the input end of the DSP microprocessor, the output end of the DSP microprocessor is connected with the input end of the FPGA data calculation chip, the output end of the FPGA data calculation chip is connected with the control unit of the power generation equipment and the input end of the 4G communication module, and the control unit of the power generation equipment is connected with a human-computer interaction information display unit;
the sensor comprises a current transformer, a voltage transformer, a temperature sensor, a humidity sensor, a noise sensor and a rainfall sensor, wherein an output port of the current transformer, an output port of the voltage transformer, an output port of the temperature sensor, an output port of the humidity sensor, an output port of the noise sensor and an output port of the rainfall sensor are respectively connected with an input port of the A/D analog-to-digital converter;
the coordination method of the coordination device for the hydroelectric generation and the energy storage equipment of the power distribution network comprises the following steps:
step 1: the current, voltage, temperature, humidity, noise, the rainfall parameter of hydroelectric power generation equipment and energy storage equipment are gathered to the power generation equipment terminal, transmit the current, voltage, temperature, humidity, noise, the rainfall measured value of gathering to the industrial computer of dispatch center end through 4G communication module, and current, voltage, temperature, humidity, noise, rainfall are as the input:
step 2: establishing an objective optimization function
Step 2.1: establishing an optimization objective function:
step 2.2: constructing an n-dimensional phase space of the state data of the hydroelectric power generation and energy storage equipment;
and 3, step 3: performing iterative operation on objective function value of vertex
Step 3.1: and performing reflection operation on the objective function value of the vertex:
is the average of the norms of points in phase space, P h Is the original vertex, P, in phase space * Alpha is a reflection coefficient, which is a new vertex searched by reflection operation;
step 3.2: and performing expansion operation on the target function of the vertex:
P ** for new vertices found by the dilation operation, the dilation coefficient γ =1.5;
step 3.3: and (3) performing contraction operation on the target function of the vertex:
if the objective function under the new vertex satisfies f (P) ** )>f(P h ) Then replace all points:
P i ＝(P i +P l )/2 (6)
p in formula (6) i For newly produced phase space phase points, P l The point with the minimum norm in the original phase points is the original lowest phase point;
calculating a certain point on a connecting line of the maximum value vertex and the gravity center through contraction operation; in the process of reflection, expansion and contraction, when the variable value of each dimension in the vertex vector is less than 0, the variable value is taken as 0; when the maximum power is larger than the allowed maximum power, taking the maximum power as the number of the maximum power;
and 4, step 4: fast coordination and synchronization are carried out according to characteristic quantities of hydroelectric power generation and energy storage equipment of power distribution network
For the objective function y = minf (x) i )+g(x i )+k(x i ) Carry out solution and penalty functionWherein p is i For hydroelectric and energy-storage installations x i The power is sent out and the power is sent out,is x i Maximum value of power, constraint functionWherein I i Is x i Middle current value, r i Is x i The resistance value t is the running time of the power grid system;
and 5: the IPC at the dispatching center end leads the coordination calculation result p i The power is transmitted to a power generation equipment terminal through a 4G communication module, and the power generation equipment terminal adjusts the power output of the hydraulic power generation equipment and the energy storage equipment through a power generation control unit.
2. The coordination device for the hydroelectric generation and the energy storage equipment of the power distribution network according to claim 1, wherein the sensors are selected from a DHC03B type current transformer, a DH51D6V0.4B type voltage transformer, a HE-200 infrared temperature sensor, a STYB3100111A50 type humidity sensor, a CRY2110 type noise sensor and a BL-YW900 type radar liquid level sensor.
3. The coordination device for the hydroelectric generation and the energy storage equipment of the power distribution network according to claim 2, wherein the A/D analog-to-digital converter adopts a TLC2543 serial A/D converter, the 4G communication transmission unit adopts an ME3760 LTE module, the DSP microprocessor adopts a TMS320F2812 chip, the FPGA data calculation chip adopts an EPM7064SLC44 chip, the control unit of the power generation equipment adopts a 51 single chip microcomputer ST89C51 chip, and the human-computer interaction information display module is an HG1286402C liquid crystal display module;
the output ends of the current transformer, the voltage transformer, the temperature sensor, the humidity sensor, the noise sensor and the rainfall sensor are respectively connected to the input ends AIN0-AIN5 of the A/D converter TLC2543 after passing through a signal conversion circuit, the output ends EOC, I/O, IN, OUT and CS of the A/D converter TLC2543 are respectively connected to XA1-XA5 pins of the DSP chip TMS320F2812, the XD0-XD7 pins of the TMS320F2812 are respectively connected with IO17-IO21 and IO24-IO26 pins of the FPGA chip EPM7064SLC44, IO4-IO6, IO8, IO9, IO11, IO12 and IO14 pins of the FPGA chip EPM7064SLC44 are respectively connected with P0.0-P0.7 pins of the singlechip STC89C51 chip, P1.0-P1.7 of a single chip STC89C51 chip is connected with D0-D7 of the liquid crystal display module, P2.0-P1.4 of the single chip STC89C51 chip is connected with RS, RW, CS1, CS2 and EN of the liquid crystal display module, RXD and TXD of the STC89C51 chip are connected with an automatic power generation control device, an IO37 pin of an FPGA chip EPM7064SLC44 is connected with a DATA end of a 4G communication module ME3760, and an ATN1 end of the 4G communication module transmits DATA to a UNO-3072 series Pentium M embedded industrial personal computer of a remote dispatching terminal through an antenna.
4. The device of claim 3, wherein the signal conversion circuit is implemented by a TLC4501 chip.
5. The device as claimed in claim 4, wherein the TLC4501 chip has 5 pins connected to one end of the resistor R3, one end of the resistor R4, and the capacitor C 2 One end of the resistor R4 is connected with the other end of the resistor R4 is connected with a 1.5V power supply and the capacitor C 2 The other end of the resistor R3 is grounded, the other end of the resistor R3 is respectively connected with a pin 1 of a TLC4501 chip, one end of a resistor R2 and one end of a capacitor C1, the other end of the capacitor C1 is respectively connected with the other end of the resistor R2, a pin 2 of the TLC4501 chip and the output end of the sensor, and a pin 3 of the TLC4501 chip is grounded; the pin 7 of the TLC4501 chip is connected to the input port of the A/D converter through a resistor R8.
6. The device of claim 5, wherein the XTAL1 pin of the STC89C51 chip is connected to one end of the crystal oscillator and a first 30pF end, the first 30pF other end is connected to the ground, the GND pin of the STC89C51 chip and a second 30pF end, and the second 30pF other end is connected to the other end of the crystal oscillator and the XTAL2 pin of the STC89C51 chip.
7. The coordination device for hydraulic power generation and energy storage of power distribution network according to claim 1, wherein α =0.83.
8. The power distribution network hydroelectric power generation and energy storage device coordination apparatus of claim 7, wherein said coefficient of contraction β =0.5.
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| CN102135760A (en) * | 2010-12-16 | 2011-07-27 | 天津工业大学 | Neural network energy coordinated controller for microgrid |
| CN102364805A (en) * | 2011-10-13 | 2012-02-29 | 东北大学 | Wind/solar hybrid generation system net-connected controller and change-over switch switching method thereof |
| CN103124072A (en) * | 2012-12-21 | 2013-05-29 | 辽宁省电力有限公司电力科学研究院 | Load characteristic considered power grid dynamic reactive power optimization system and method |
| CN203941443U (en) * | 2014-07-17 | 2014-11-12 | 国家电网公司 | A kind of power distribution network hydropower and energy storage device conditioning unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102135760A (en) * | 2010-12-16 | 2011-07-27 | 天津工业大学 | Neural network energy coordinated controller for microgrid |
| CN102364805A (en) * | 2011-10-13 | 2012-02-29 | 东北大学 | Wind/solar hybrid generation system net-connected controller and change-over switch switching method thereof |
| CN103124072A (en) * | 2012-12-21 | 2013-05-29 | 辽宁省电力有限公司电力科学研究院 | Load characteristic considered power grid dynamic reactive power optimization system and method |
| CN203941443U (en) * | 2014-07-17 | 2014-11-12 | 国家电网公司 | A kind of power distribution network hydropower and energy storage device conditioning unit |
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