CN106773979A - It is a kind of suitable for shipping shore power system power supply and the managing and control system and method for information - Google Patents
It is a kind of suitable for shipping shore power system power supply and the managing and control system and method for information Download PDFInfo
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- CN106773979A CN106773979A CN201611237601.XA CN201611237601A CN106773979A CN 106773979 A CN106773979 A CN 106773979A CN 201611237601 A CN201611237601 A CN 201611237601A CN 106773979 A CN106773979 A CN 106773979A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24215—Scada supervisory control and data acquisition
Abstract
The present invention proposes a kind of suitable for shipping shore power system power supply and the managing and control system and method for information, including harbour supervisory layers and information processing layer；Harbour supervisory layers, including data acquisition module, intelligent monitored control module and PLC；Information processing layer, including control process device, DSP, FPGA, signal test and conversion module and data memory module；The input of data acquisition module connects each electrical equipment of shipping shore power system by data/address bus, the data acquisition module, intelligent monitored control module, control process device, DSP, FPGA, signal test and conversion module, communicated by data/address bus between data memory module and PLC, described DSP, FPGA pass through the power inverter that data/address bus connects shipping shore power system；Different voltage class that the system can go on board for bank electricity, frequency are acquired and distinguish, and reach seizure more accurately and quickly and car combined floodgate point.
Description
Technical field
Management and control technology field the invention belongs to shore electric power and information, and in particular to one kind is applied to ship bank
The managing and control system and method for electric system power supply and information.
Background technology
Used as the important step in China's window open to the outside world and modern logistics supply chain, its energy resource consumption is whole at harbour
Occupy suitable proportion in individual transportation industry.Ship berthing when harbour carries out cargo handling, the electricity consumption of its various electrical equipment
Come from ship generating diesel engine mostly, ship causes very big pressure in harbour operation diesel engine to the environment at harbour.If
The ship for reaching port allows hand over bank electricity, then can just close the generating diesel engine of its own, so, it becomes possible to drop significantly
Low ship generating diesel engine waste gas produced when running, profit and noise.Meanwhile, ship reaches port can be to port side using bank electricity
Economic benefit is brought with ship, consumption of the ship to the energy is reduced.On the whole, ring of the ship shore electric power technology for China
Border protection, energy-saving and emission-reduction and sustainable development all have great importance.
Ship for bank electricity and car pair as if ship own power system and shore electric power on the bank, gone on board according to bank electricity
Different voltage class, shipping shore power system can be divided into low-voltage power supply and high voltage supply two ways again, and it requires more accurate, fast
The seizure of speed and car combined floodgate point.When ship uses shore electric power, voltage, frequency and phase angle difference that it adjusts marine generator make
It reaches synchronous with shore electric power, finally completes the same period and car.Meanwhile, ship is whole shore electric power system for bank electricity joint operating device
A part for system, in order to the state in normal monitoring joint operating device and its Engagement, it should possess telecommunication energy
Power, Surveillance center on the bank can read the information such as record Engagement, time and failure.Therefore, shipping shore power system
Core technology is the management and control research to ship shore electric power and its information.
The content of the invention
In view of the shortcomings of the prior art, the present invention proposes a kind of suitable for shipping shore power system power supply and the management and control system of information
System and method.
Technical solution of the present invention is as follows：
It is a kind of suitable for shipping shore power system power supply and the managing and control system of information, including harbour supervisory layers and information processing
Layer；
The harbour supervisory layers, including data acquisition module, intelligent monitored control module and PLC；
Described information process layer, including control process device, DSP, FPGA, signal test and conversion module and data storage mould
Block；
The input of the data acquisition module connects each electrical equipment of shipping shore power system, institute by data/address bus
State data acquisition module, intelligent monitored control module, control process device, DSP, FPGA, signal test and conversion module, data storage mould
Communicated by data/address bus between block and PLC, described DSP, FPGA connect ship shore electric system by data/address bus
The power inverter of system；
The data acquisition module, power consumption information for each electrical equipment of Real-time Collection shipping shore power system,
Power consumption parameter information, running status and warning message, are sent to intelligent monitored control module in real time；
The intelligent monitored control module, for the power consumption parameter letter of each electrical equipment of the shipping shore power system to gathering
Breath, running status and warning message are monitored, and judge whether each electrical equipment works in rated voltage, rated current and volume
Determine under power, and whether the running status of each electrical equipment normal, if electrical equipment beyond its rated voltage, rated current or
Rated power, or electrical equipment running status exception, then carry out break-make control to its corresponding device by PLC, and
Power consumption information, power consumption parameter information, the electrical equipment running status of each electrical equipment of the shipping shore power system that will be gathered
Information processing layer is sent to by data/address bus with warning message；
The PLC, for exceeding its rated voltage, rated current or rated power, Huo Zheyong in electrical equipment
When electric equipment running status is abnormal, break-make control is carried out to its corresponding device；
The control process device, is the computer with human-computer interaction interface, the shipping shore power system for showing collection
The power consumption information of each electrical equipment, power consumption parameter information, electrical equipment running status and warning message, in operating personnel
When carrying out operation out of service or simultaneously car operation, operation signal to DSP and FPGA is sent, when electrical equipment exceeds its specified electricity
Pressure, rated current or rated power, or during electrical equipment running status exception, operating personnel are by human-computer interaction interface control
PLC carries out break-make control to its corresponding device；
The DSP, for calculating and judges whether ship electricity power supply and shore electric power meet and car requirement, and in ship electricity power supply
Or shore electric power is unsatisfactory for and during car requirement, reduce-speed sign, signal for faster, boost signal or buck signal to ship shore electric are sent
The power inverter of system, until ship electricity power supply meets and car requirement with shore electric power, and calculates ship electricity power supply and shore electric power
Closing phase angle and closing time, send a control signal to shipping shore power system power inverter complete and car operation；
The FPGA, for carrying out data/address bus synchronous coding realization when DSP sends a control signal to power inverter
Modulus signal synchronization, and carry out normal operating condition and alarm condition collection；
The signal test and conversion module, is detected and is turned for the analog signal to data collecting module collected
Change, be sent to DSP and FPGA；
The data memory module, shipboard output current, shipboard output voltage for storage vessel bank electricity system, shipboard
Output frequency, net side output current, net side input voltage, warning time, fault time.
Shipping shore power system power supply and information are carried out using the managing and control system suitable for shipping shore power system power supply and information
Management and control method, comprise the following steps：
Step 1：By the power consumption information of each electrical equipment of data acquisition module Real-time Collection shipping shore power system,
Power consumption parameter information, electrical equipment running status and warning message, are sent to intelligent monitored control module in real time；
Step 2：The power consumption parameter of each electrical equipment of the shipping shore power system for gathering is believed by intelligent monitored control module
Breath, running status and warning message are monitored, and judge whether each electrical equipment works in rated voltage, rated current and volume
Determine under power, and whether the running status of each electrical equipment normal, if electrical equipment beyond its rated voltage, rated current or
Rated power, or electrical equipment running status exception, then carry out break-make control to its corresponding device by PLC, and
Power consumption information, power consumption parameter information, the electrical equipment running status of each electrical equipment of the shipping shore power system that will be gathered
Information processing layer is sent to by data/address bus with warning message；
Step 3：Power consumption information, the electricity consumption of each electrical equipment of the shipping shore power system of control process device display collection
Parameter information, electrical equipment running status and warning message, when electrical equipment exceeds its rated voltage, rated current or specified work(
Rate, or during electrical equipment running status exception, operating personnel are set by human-computer interaction interface control PLC controller to its correspondence
It is standby to carry out break-make control；
Step 4：When operating personnel send simultaneously car sign on by the human-computer interaction interface of control process device, at control
Reason device sends a command to DSP by data/address bus；
Step 5：Judge whether ship electricity power supply meets and car requirement with shore electric power by DSP and FPGA, and in ship electricity electricity
When source or shore electric power are unsatisfactory for simultaneously car requirement, reduce-speed sign, signal for faster, boost signal or buck signal to ship bank are sent
The power inverter of electric system, until ship electricity power supply meets and car requirement with shore electric power, calculates ship electricity power supply and shore electric power
Closing phase angle and closing time, send a control signal to shipping shore power system power inverter complete and car operation；
Step 5.1：Voltage, the frequency of shore electric power, the phase angle of shore electric power, the ship electricity of shore electric power are calculated by DSP
Voltage difference, the shore electric power of the voltage of system, the frequency of ship electric system, the phase angle of ship electric system, shore electric power and ship electricity power supply
With the difference on the frequency of ship electricity power supply；
Step 5.2：Judge whether the voltage and frequency of shore electric power meet the intrinsic configuration of shipping shore power system by DSP
And its fluctuation is no more than setting fluctuation threshold, if so, then performing step 5.3, otherwise, return to step 4；
Step 5.3：Used based on reactive power compensation algorithm according to two power inverters of shore electric power by DSP
Voltage, frequency and power determine the output voltage amplitude regulated quantity of two power inverters of shore electric power；
Step 5.3.1：Two voltages of power inverter, frequency and power according to shore electric power are determined in shore electric power
Two parallel power inverter output currents：
Wherein,It is the output current of the first shore electric power power inverter,It is the second shore electric power power inverter
Output current, Z1=R1+jX1It is the equivalent output impedance of the first shore electric power power inverter, R1It is the first shore electric power power
The resistance of inverter, X1It is the reactance of the first shore electric power power inverter, Z2=R2+jX2It is the second shore electric power power inverting
The equivalent output impedance of device, R2It is the resistance of the second shore electric power power inverter, X2It is the second shore electric power power inverter
Reactance,It is load side voltage in shore electric power, U0It is load-side amplitude in shore electric power,For
The output voltage of the first shore electric power power inverter, U1It is the output voltage amplitude of the first shore electric power power inverter,
It is the output voltage phase of the first shore electric power power inverter,It is defeated for the second shore electric power power inverter
Go out voltage, U2It is the output voltage amplitude of the second shore electric power power inverter,It is the second shore electric power power inverter
Output voltage phase；
Step 5.3.2：Circulation in calculating shore electric power between two power inverters：
(1) when in shore electric power two power inverter output voltages only exist difference in magnitude and when not existing phase difference, then
Circulation in shore electric power between two power invertersComputing formula it is as follows：
(2) when in shore electric power two power inverter output voltages only exist phase difference and when not existing difference in magnitude, then
Circulation in shore electric power between two power invertersComputing formula it is as follows：
Step 5.3.3：Calculate in shore electric power between two power inverters because the apparent energy of circulating loss is SH、
Because of the active-power P of circulating lossHWith the reactive power Q because of circulating lossH：
(1) when in shore electric power two power inverter output voltages only exist difference in magnitude and when not existing phase difference, then
In shore electric power between two power inverters because circulating loss apparent energy be SH, because of the active-power P of circulating lossH
With the reactive power Q because of circulating lossHComputing formula it is as follows：
Wherein, R1=R2=Ri, X1=X2=Xi；
(2) when in shore electric power two power inverter output voltages only exist phase difference and when not existing difference in magnitude, then
In shore electric power between two power inverters because circulating loss apparent energy be SH, because of the active-power P of circulating lossH
With the reactive power Q because of circulating lossHComputing formula it is as follows：
(3) when two power inverter output voltages had not only had phase difference but also there is difference in magnitude in shore electric power, then bank
Because of the active-power P of circulating loss between two power inverters in power supplyHWith the reactive power Q because of circulating lossHCalculating
Formula is as follows：
Wherein, Δ U is two voltage amplitude value differences of power inverter in shore electric power,It is two work(in shore electric power
The voltage phase difference of rate inverter；
Step 5.3.4：According to step 5.3.3 obtain because of the active-power P of circulating lossHWith it is idle because of circulating loss
Power QHDetermine two voltage amplitude value differences of power inverter in shore electric powerWith phase difference U：
Step 5.3.5：It is determined that adding two power inverter output voltage amplitude regulations in the shore electric power after PI regulations
Amount Δ Ui：
Wherein, Kp, KIIt is PI regulation parameters, Δ U1=Δ U2=Δ Ui, Δ U1It is shore electric power First power inverter
Output voltage amplitude regulated quantity, Δ U2It is second power inverter output voltage amplitude regulated quantity of shore electric power, QHiIt is bank electricity
Because of the reactive power of circulating loss, i=1,2, s are Laplace transformation after addition pi regulator to i-th power inverter of power supply.
Step 5.4：The output voltage amplitude regulated quantity of power inverter is adjusted by DSP and FPGA；
Step 5.5：Judge whether shore electric power meets and car requirement with the difference on the frequency of ship electricity power supply by DSP, if so, then
Step 5.7 is performed, otherwise, step 5.6 is performed；
Step 5.6：Whether the frequency for judging ship electricity power supply by DSP is more than the frequency of shore electric power, if so, passing through DSP
With FPGA deceleration pulse, return to step 5.1, otherwise, by DSP and FPGA to ship electricity are sent to the power inverter of ship electric system
The power inverter of system sends acceleration pulse, return to step 5.1；
Step 5.7：Judge whether shore electric power meets and car requirement with the voltage difference of ship electricity power supply by DSP, if so, then
Step 5.9 is performed, otherwise, step 5.8 is performed；
Step 5.8：Whether the voltage for judging ship electricity power supply by DSP is more than the frequency of shore electric power, if so, passing through DSP
With FPGA step-down pulse, return to step 5.1, otherwise, by DSP and FPGA to ship electricity are sent to the power inverter of ship electric system
The power inverter of system sends voltage boosting pulse, return to step 5.1；
Step 5.9：The closing phase angle and closing time of ship electricity power supply and shore electric power are calculated by DSP；
Step 5.10：Switching signal to the power inverter of ship electric system and the work(of bank electricity system is sent by DSP and FPGA
Rate inverter realizes closing operation；
Step 6：The power consumption information of each electrical equipment of the shipping shore power system gathered by the display of control process device,
Power consumption parameter information, electrical equipment running status and warning message；
Step 7：By the shipboard output current of data memory module storage vessel bank electricity system, shipboard output voltage, ship
Side output frequency, net side output current, net side input voltage, warning time, fault time.
Beneficial effects of the present invention：
The present invention proposes a kind of suitable for shipping shore power system power supply and the managing and control system and method for information, and the system possesses
Telecommunication capabilities, can be acquired and processed by monitoring center to ship-to-shore Engagement, time and fault message；Should
System includes harbour supervisory layers and information processing layer, and each electrical equipment is connected by industry-standard data bus, cooperated altogether
With completion bank electricity information management task；Different voltage class that the system can go on board for bank electricity, frequency are acquired and area
Point, so as to reach seizure and car combined floodgate point more accurately and quickly so that successfully use bank electricity system when ship pulls in shore；Press
According to Redundancy Design, redundant system can be automatically switched to when main system breaks down, can ensured to the continuous of ship during switching
Normal power supply；Using based on reactive power shore electric power Parallel Control, this control helps to improve single unsteady flow in shore electric power
The multi-party planar defect such as device, technique, radiating, redundancy, dilatation is easy to by carrying out parallel connection to current transformer in shore electric power, reliable
Property is high and easy to maintenance.
Brief description of the drawings
Fig. 1 is bank electricity system and ship electric system connection diagram in the specific embodiment of the invention；
Wherein, 1- bank electricities connection system, 2- banks side isolating transformer, 3- banks side protection system, 4- banks side breaker and connect
Ground switch, the control of 5- banks side and interface equipment, the connection of 6- banks ship and interactive device, the control of 7- shipboards and interface equipment, 8- shipboards
Protection system, 9- shipboards breaker and earthed switch, 10- boat-carryings transformer, 11- bank electricity access points；
Fig. 2 is the structure of the managing and control system for being applied to shipping shore power system power supply and information in the specific embodiment of the invention
Schematic diagram；
Fig. 3 is the flow of the management-control method for being applied to shipping shore power system power supply and information in the specific embodiment of the invention
Figure.
Specific embodiment
The specific embodiment of the invention is described in detail below in conjunction with the accompanying drawings.
It is as shown in Figure 1 each electrical equipment of bank electricity system and ship electric system connection diagram, i.e. shipping shore power system,
Controlled including bank electricity connection system 1, bank side isolating transformer 2, bank side protection system 3, bank side breaker and earthed switch 4, bank side
System and interface equipment 5, the connection of bank ship and the control of interactive device 6, shipboard and interface equipment 7, the open circuit of shipboard protection system 8, shipboard
Device and earthed switch 9, boat-carrying transformer 10, bank electricity access point 11.
The present invention propose it is a kind of suitable for shipping shore power system power supply and the managing and control system of information, as shown in Fig. 2 including port
Mouth supervisory layers and information processing layer.
Harbour supervisory layers, including data acquisition module, intelligent monitored control module and PLC.
Information processing layer, including control process device, DSP, FPGA, signal test and conversion module and data memory module.
The input of data acquisition module connects each electrical equipment of shipping shore power system by data/address bus, and data are adopted
Collection module, intelligent monitored control module, control process device, DSP, FPGA, signal test and conversion module, data memory module and PLC
Communicated by data/address bus between controller, DSP, FPGA connect the power inverting of shipping shore power system by data/address bus
Device.
In present embodiment, data/address bus is industry-standard data bus CAN/AS INTERFACE/INTERBUS.
Data acquisition module, for power consumption information, the electricity consumption of each electrical equipment of Real-time Collection shipping shore power system
Parameter information, running status and warning message, are sent to intelligent monitored control module in real time.
In present embodiment, data acquisition module uses the DTGS-800 modules of Anydata.Data acquisition module has remote
Journey data acquisition and the function of transmission, built-in tcp/ip communication agreement.
In present embodiment, the power consumption parameter information of collection includes voltage and current.
Intelligent monitored control module, power consumption parameter information, fortune for each electrical equipment of the shipping shore power system to gathering
Row state and warning message are monitored, and judge whether each electrical equipment works in rated voltage, rated current and specified work(
Under rate, and whether the running status of each electrical equipment is normal, if electrical equipment exceeds its rated voltage, rated current or specified
Power, or electrical equipment running status exception, then carry out break-make control to its corresponding device, and will adopt by PLC
The power consumption information of each electrical equipment of the shipping shore power system of collection, power consumption parameter information, electrical equipment running status and report
Alert information is sent to information processing layer by data/address bus.
PLC, for exceeding its rated voltage, rated current or rated power in electrical equipment, or electricity consumption sets
During received shipment row abnormal state, break-make control is carried out to its corresponding device.
In present embodiment, intelligent monitored control module uses PSM-E20C electric supply monitoring modules.In intelligent monitored control module
It is integrated with 50/60Hz working lines interlock protection, system operation conditions protection, power supply programme-control protection, power-down procedure control
Protection, system failure stoppage protection, personnel's fault-operation protection, rigid line interlock protection, above-mentioned protection may insure that mould can only be monitored
Block is acted in time when abnormal operational conditions generation is monitored, it is to avoid overvoltage, over-current phenomenon avoidance occur so as to cause system failure.
The action of above-mentioned protection is controlled by PLC.
Control process device, is the computer with human-computer interaction interface, for showing each of the shipping shore power system for gathering
The power consumption information of individual electrical equipment, power consumption parameter information, electrical equipment running status and warning message, are carried out in operating personnel
Operation out of service or when simultaneously car is operated, sends operation signal to DSP and FPGA, when electrical equipment beyond its rated voltage,
Rated current or rated power, or during electrical equipment running status exception, operating personnel pass through human-computer interaction interface control PLC
Controller carries out break-make control to its corresponding device.
In present embodiment, control process utensil has man-machine interface, system I/O interfaces and system remote monitoring interface,
Man-machine interface is made up of LCDs with button, and system I/O interfaces are main to be constituted by isolating I/O chip system communication chips,
It is connected with PLC, is responsible for being controlled system input/output switching amount.
DSP, for calculating and judges whether ship electricity power supply and shore electric power meet and car requirement, and in ship electricity power supply or bank
When power supply is unsatisfactory for simultaneously car requirement, reduce-speed sign, signal for faster, boost signal or buck signal to shipping shore power system are sent
Power inverter, until ship electricity power supply and shore electric power meet and car requirement, and calculate the conjunction of ship electricity power supply and shore electric power
Lock phase angle and closing time, the power inverter for sending a control signal to shipping shore power system are completed and car operation.
FPGA, modulus is realized for carrying out data/address bus synchronous coding when DSP sends a control signal to power inverter
Signal synchronization, and carry out normal operating condition and alarm condition collection.
Signal test and conversion module, is detected and is changed for the analog signal to data collecting module collected, is passed
Deliver to DSP and FPGA.
In present embodiment, signal test and conversion module is ADC.
Data memory module, shipboard output current, shipboard output voltage, the shipboard output for storage vessel bank electricity system
Frequency, net side output current, net side input voltage, warning time, fault time.
Shipping shore power system power supply and information are carried out using the managing and control system suitable for shipping shore power system power supply and information
Management and control method, as shown in figure 3, comprising the following steps：
Step 1：By the power consumption information of each electrical equipment of data acquisition module Real-time Collection shipping shore power system,
Power consumption parameter information, electrical equipment running status and warning message, are sent to intelligent monitored control module in real time.
Step 2：The power consumption parameter of each electrical equipment of the shipping shore power system for gathering is believed by intelligent monitored control module
Breath, running status and warning message are monitored, and judge whether each electrical equipment works in rated voltage, rated current and volume
Determine under power, and whether the running status of each electrical equipment normal, if electrical equipment beyond its rated voltage, rated current or
Rated power, or electrical equipment running status exception, then carry out break-make control to its corresponding device by PLC, and
Power consumption information, power consumption parameter information, the electrical equipment running status of each electrical equipment of the shipping shore power system that will be gathered
Information processing layer is sent to by data/address bus with warning message.
Step 3：Power consumption information, the electricity consumption of each electrical equipment of the shipping shore power system of control process device display collection
Parameter information, electrical equipment running status and warning message, when electrical equipment exceeds its rated voltage, rated current or specified work(
Rate, or during electrical equipment running status exception, operating personnel are set by human-computer interaction interface control PLC controller to its correspondence
It is standby to carry out break-make control.
Step 4：When operating personnel send simultaneously car sign on by the human-computer interaction interface of control process device, at control
Reason device sends a command to DSP by data/address bus.
Step 5：Judge whether ship electricity power supply meets and car requirement with shore electric power by DSP and FPGA, and in ship electricity electricity
When source or shore electric power are unsatisfactory for simultaneously car requirement, reduce-speed sign, signal for faster, boost signal or buck signal to ship bank are sent
The power inverter of electric system, until ship electricity power supply meets and car requirement with shore electric power, calculates ship electricity power supply and shore electric power
Closing phase angle and closing time, send a control signal to shipping shore power system power inverter complete and car operation.
Step 5.1：Voltage, the frequency of shore electric power, the phase angle of shore electric power, the ship electricity of shore electric power are calculated by DSP
Voltage difference, the shore electric power of the voltage of system, the frequency of ship electric system, the phase angle of ship electric system, shore electric power and ship electricity power supply
With the difference on the frequency of ship electricity power supply.
Step 5.2：Judge whether the voltage and frequency of shore electric power meet the intrinsic configuration of shipping shore power system by DSP
And its fluctuation is no more than setting fluctuation threshold, if so, then performing step 5.3, otherwise, return to step 4.
In present embodiment, shipping shore power system it is intrinsic be configured to 10kV/50Hz, 6.6kV/60Hz, 380V/50Hz,
440V/60Hz.Fluctuation threshold is ± 5%.
Step 5.3：Used based on reactive power compensation algorithm according to two power inverters of shore electric power by DSP
Voltage, frequency and power determine the output voltage amplitude regulated quantity of two power inverters of shore electric power.
Step 5.3.1：Two voltages of power inverter, frequency and power according to shore electric power are determined in shore electric power
Two parallel power inverter output currents：
In present embodiment, shown in two computing formula of parallel power inverter output current such as formulas (1)：
Wherein,It is the output current of the first shore electric power power inverter,It is the second shore electric power power inverter
Output current, Z1=R1+jX1It is the equivalent output impedance of the first shore electric power power inverter, R1It is the first shore electric power power
The resistance of inverter, X1It is the reactance of the first shore electric power power inverter, Z2=R2+jX2It is the second shore electric power power inverting
The equivalent output impedance of device, R2It is the resistance of the second shore electric power power inverter, X2It is the second shore electric power power inverter
Reactance,It is load side voltage in shore electric power, U0It is load-side amplitude in shore electric power,It is
The output voltage of one shore electric power power inverter, U1It is the output voltage amplitude of the first shore electric power power inverter,It is
The output voltage phase of one shore electric power power inverter,It is the output electricity of the second shore electric power power inverter
Pressure, U2It is the output voltage amplitude of the second shore electric power power inverter,It is the output of the second shore electric power power inverter
Voltage-phase.
The parameter fine difference for causing is manufactured because the power inverter for same capacity is negligible, then the first shore electric power
The output voltage phase of power inverterWith the output voltage phase of the second shore electric power power inverterClose to 0, R is taken1
=R2=Ri, X1=X2=Xi, then formula (2) is obtained：
Step 5.3.2：Circulation in calculating shore electric power between two power inverters：
In present embodiment, shown in the circulation such as formula (3) in shore electric power between two power inverters：
Can be obtained as shown in formula (4) according to formula (2)：
Therefore can obtain, (1) when in shore electric power two power inverter output voltages only exist difference in magnitude and do not exist phase
During potential difference, then the circulation in shore electric power between two power invertersComputing formula such as formula (5) shown in：
(2) when in shore electric power two power inverter output voltages only exist phase difference and when not existing difference in magnitude, then
Circulation in shore electric power between two power invertersComputing formula such as formula (6) shown in：
Step 5.3.3：Calculate in shore electric power between two power inverters because the apparent energy of circulating loss is SH、
Because of the active-power P of circulating lossHWith the reactive power Q because of circulating lossH。
In present embodiment, in shore electric power between two power inverters because circulating loss apparent energy be SH's
Shown in computing formula such as formula (7)：
Wherein, S1It is the apparent energy of the first shore electric power power inverter, S2It is the second shore electric power power inverter
Apparent energy.
Therefore can obtain, (1) when in shore electric power two power inverter output voltages only exist difference in magnitude and do not exist phase
During potential difference, then in shore electric power between two power inverters because circulating loss apparent energy be SHAs shown in formula (8), because
The active-power P of circulating lossHAs shown in formula (9), because of the reactive power Q of circulating lossHAs shown in formula (10)：
Wherein, R1=R2=Ri, X1=X2=Xi；
(2) when in shore electric power two power inverter output voltages only exist phase difference and when not existing difference in magnitude, then
In shore electric power between two power inverters because circulating loss apparent energy be SHAs shown in formula (11), because of circulating loss
Active-power PHAs shown in formula (12), because of the reactive power Q of circulating lossHAs shown in formula (13)：
(3) when two power inverter output voltages had not only had phase difference but also there is difference in magnitude in shore electric power, then bank
Because of the active-power P of circulating loss between two power inverters in power supplyHAs shown in formula (14) and because of the nothing of circulating loss
Work(power QHAs shown in formula (15)：
Wherein, Δ U is two voltage amplitude value differences of power inverter in shore electric power,It is two work(in shore electric power
The voltage phase difference of rate inverter.
Step 5.3.4：According to step 5.3.3 obtain because of the active-power P of circulating lossHWith it is idle because of circulating loss
Power QHDetermine two voltage amplitude value differences of power inverter in shore electric powerWith phase difference U.
In present embodiment, it is determined that shore electric power in two voltage amplitude value differences of power inverterSuch as formula (16) institute
Show, shown in phase difference U such as formulas (17)：
In present embodiment, because resistance R in power inverter output impedanceiMuch smaller than induction reactance Xi, can formula (16) and formula
(17) can be reduced to shown in formula (18) and formula (19)：
Step 5.3.5：It is determined that adding two power inverter output voltage amplitude regulations in the shore electric power after PI regulations
Amount Δ Ui。
In present embodiment, two power inverter output voltage amplitude regulated quantitys in the shore electric power after PI regulations are added
ΔUiAs shown in formula (20)：
Wherein, Kp, KIIt is PI regulation parameters, Δ U1=Δ U2=Δ Ui, Δ U1It is shore electric power First power inverter
Output voltage amplitude regulated quantity, Δ U2It is second power inverter output voltage amplitude regulated quantity of shore electric power, QHiIt is bank electricity
Because of the reactive power of circulating loss, i=1,2, s are Laplace transformation after addition pi regulator to i-th power inverter of power supply.
Step 5.4：The output voltage amplitude regulated quantity of power inverter is adjusted by DSP and FPGA.
Step 5.5：Judge whether shore electric power meets and car requirement with the difference on the frequency of ship electricity power supply by DSP, if so, then
Step 5.7 is performed, otherwise, step 5.6 is performed.
In present embodiment, shore electric power requires to be maintained at ± 10% for difference on the frequency with the difference on the frequency and car of ship electricity power supply
Within.
Step 5.6：Whether the frequency for judging ship electricity power supply by DSP is more than the frequency of shore electric power, if so, passing through DSP
With FPGA deceleration pulse, return to step 5.1, otherwise, by DSP and FPGA to ship electricity are sent to the power inverter of ship electric system
The power inverter of system sends acceleration pulse, return to step 5.1.
Step 5.7：Judge whether shore electric power meets and car requirement with the voltage difference of ship electricity power supply by DSP, if so, then
Step 5.9 is performed, otherwise, step 5.8 is performed.
In present embodiment, shore electric power requires to be maintained at ± 10% for voltage difference with the voltage difference and car of ship electricity power supply
Within.
Step 5.8：Whether the voltage for judging ship electricity power supply by DSP is more than the frequency of shore electric power, if so, passing through DSP
With FPGA step-down pulse, return to step 5.1, otherwise, by DSP and FPGA to ship electricity are sent to the power inverter of ship electric system
The power inverter of system sends voltage boosting pulse, return to step 5.1.
Step 5.9：The closing phase angle and closing time of ship electricity power supply and shore electric power are calculated by DSP.
Step 5.10：Switching signal to the power inverter of ship electric system and the work(of bank electricity system is sent by DSP and FPGA
Rate inverter realizes closing operation.
Step 6：The power consumption information of each electrical equipment of the shipping shore power system gathered by the display of control process device,
Power consumption parameter information, electrical equipment running status and warning message.
Step 7：By the shipboard output current of data memory module storage vessel bank electricity system, shipboard output voltage, ship
Side output frequency, net side output current, net side input voltage, warning time, fault time.
Claims (3)
1. a kind of suitable for shipping shore power system power supply and the managing and control system of information, it is characterised in that including harbour supervisory layers and
Information processing layer；
The harbour supervisory layers, including data acquisition module, intelligent monitored control module and PLC；
Described information process layer, including control process device, DSP, FPGA, signal test and conversion module and data memory module；
The input of the data acquisition module connects each electrical equipment of shipping shore power system, the number by data/address bus
According to acquisition module, intelligent monitored control module, control process device, DSP, FPGA, signal test and conversion module, data memory module and
Communicated by data/address bus between PLC, described DSP, FPGA connect shipping shore power system by data/address bus
Power inverter；
The data acquisition module, for power consumption information, the electricity consumption of each electrical equipment of Real-time Collection shipping shore power system
Parameter information, running status and warning message, are sent to intelligent monitored control module in real time；
The intelligent monitored control module, power consumption parameter information, fortune for each electrical equipment of the shipping shore power system to gathering
Row state and warning message are monitored, and judge whether each electrical equipment works in rated voltage, rated current and specified work(
Under rate, and whether the running status of each electrical equipment is normal, if electrical equipment exceeds its rated voltage, rated current or specified
Power, or electrical equipment running status exception, then carry out break-make control to its corresponding device, and will adopt by PLC
The power consumption information of each electrical equipment of the shipping shore power system of collection, power consumption parameter information, electrical equipment running status and report
Alert information is sent to information processing layer by data/address bus；
The PLC, for exceeding its rated voltage, rated current or rated power in electrical equipment, or electricity consumption sets
During received shipment row abnormal state, break-make control is carried out to its corresponding device；
The control process device, is the computer with human-computer interaction interface, for showing each of the shipping shore power system for gathering
The power consumption information of individual electrical equipment, power consumption parameter information, electrical equipment running status and warning message, are carried out in operating personnel
Operation out of service or when simultaneously car is operated, sends operation signal to DSP and FPGA, when electrical equipment beyond its rated voltage,
Rated current or rated power, or during electrical equipment running status exception, operating personnel pass through human-computer interaction interface control PLC
Controller carries out break-make control to its corresponding device；
The DSP, for calculating and judges whether ship electricity power supply and shore electric power meet and car requirement, and in ship electricity power supply or bank
When power supply is unsatisfactory for simultaneously car requirement, reduce-speed sign, signal for faster, boost signal or buck signal to shipping shore power system are sent
Power inverter, until ship electricity power supply and shore electric power meet and car requirement, and calculate the conjunction of ship electricity power supply and shore electric power
Lock phase angle and closing time, the power inverter for sending a control signal to shipping shore power system are completed and car operation；
The FPGA, modulus is realized for carrying out data/address bus synchronous coding when DSP sends a control signal to power inverter
Signal synchronization, and carry out normal operating condition and alarm condition collection；
The signal test and conversion module, is detected and is changed for the analog signal to data collecting module collected, is passed
Deliver to DSP and FPGA；
The data memory module, shipboard output current, shipboard output voltage, the shipboard output for storage vessel bank electricity system
Frequency, net side output current, net side input voltage, warning time, fault time.
2. ship shore electric system is carried out using the managing and control system suitable for shipping shore power system power supply and information described in claim 1
The method of the management and control of system power supply and information, it is characterised in that comprise the following steps：
Step 1：By power consumption information, the electricity consumption of each electrical equipment of data acquisition module Real-time Collection shipping shore power system
Parameter information, electrical equipment running status and warning message, are sent to intelligent monitored control module in real time；
Step 2：Power consumption parameter information, fortune by intelligent monitored control module to each electrical equipment of the shipping shore power system of collection
Row state and warning message are monitored, and judge whether each electrical equipment works in rated voltage, rated current and specified work(
Under rate, and whether the running status of each electrical equipment is normal, if electrical equipment exceeds its rated voltage, rated current or specified
Power, or electrical equipment running status exception, then carry out break-make control to its corresponding device, and will adopt by PLC
The power consumption information of each electrical equipment of the shipping shore power system of collection, power consumption parameter information, electrical equipment running status and report
Alert information is sent to information processing layer by data/address bus；
Step 3：Power consumption information, the power consumption parameter of each electrical equipment of the shipping shore power system of control process device display collection
Information, electrical equipment running status and warning message, when electrical equipment exceeds its rated voltage, rated current or rated power,
Or during electrical equipment running status exception, operating personnel are by human-computer interaction interface control PLC controller to its corresponding device
Carry out break-make control；
Step 4：When operating personnel send simultaneously car sign on by the human-computer interaction interface of control process device, control process device
DSP is sent a command to by data/address bus；
Step 5：Judge whether ship electricity power supply and shore electric power meet and car requirement by DSP and FPGA, and in ship electricity power supply or
When shore electric power is unsatisfactory for simultaneously car requirement, reduce-speed sign, signal for faster, boost signal or buck signal to ship shore electric system are sent
The power inverter of system, until ship electricity power supply meets and car requirement with shore electric power, calculates the conjunction of ship electricity power supply and shore electric power
Lock phase angle and closing time, the power inverter for sending a control signal to shipping shore power system are completed and car operation；
Step 5.1：Voltage, the frequency of shore electric power, the phase angle of shore electric power, the ship electric system of shore electric power are calculated by DSP
Voltage, the frequency of ship electric system, the phase angle of ship electric system, shore electric power and the ship electricity voltage difference of power supply, shore electric power and ship
The difference on the frequency of power supply；
Step 5.2：By DSP judge the voltage and frequency of shore electric power whether meet the intrinsic configuration of shipping shore power system and its
Fluctuation is no more than setting fluctuation threshold, if so, then performing step 5.3, otherwise, return to step 4；
Step 5.3：Two electricity of power inverter based on reactive power compensation algorithm according to shore electric power are used by DSP
Pressure, frequency and power determine the output voltage amplitude regulated quantity of two power inverters of shore electric power；
Step 5.4：The output voltage amplitude regulated quantity of power inverter is adjusted by DSP and FPGA；
Step 5.5：Judge whether shore electric power meets and car requirement with the difference on the frequency of ship electricity power supply by DSP, if so, then performing
Step 5.7, otherwise, performs step 5.6；
Step 5.6：By DSP judge ship electricity power supply frequency whether more than shore electric power frequency, if so, by DSP and
FPGA sends deceleration pulse to the power inverter of ship electric system, and return to step 5.1 otherwise, is to ship electricity by DSP and FPGA
The power inverter of system sends acceleration pulse, return to step 5.1；
Step 5.7：Judge whether shore electric power meets and car requirement with the voltage difference of ship electricity power supply by DSP, if so, then performing
Step 5.9, otherwise, performs step 5.8；
Step 5.8：By DSP judge ship electricity power supply voltage whether more than shore electric power frequency, if so, by DSP and
FPGA sends step-down pulse to the power inverter of ship electric system, and return to step 5.1 otherwise, is to ship electricity by DSP and FPGA
The power inverter of system sends voltage boosting pulse, return to step 5.1；
Step 5.9：The closing phase angle and closing time of ship electricity power supply and shore electric power are calculated by DSP；
Step 5.10：Switching signal is sent by DSP and FPGA inverse to the power inverter of ship electric system and the power of bank electricity system
Become device and realize closing operation；
Step 6：Power consumption information, the electricity consumption of each electrical equipment of the shipping shore power system of collection are shown by control process device
Parameter information, electrical equipment running status and warning message；
Step 7：It is defeated by the shipboard output current of data memory module storage vessel bank electricity system, shipboard output voltage, shipboard
Go out frequency, net side output current, net side input voltage, warning time, fault time.
3. the method for the management and control of shipping shore power system power supply according to claim 2 and information, it is characterised in that the step
Rapid 5.3 comprise the following steps：
Step 5.3.1：Two voltages of power inverter, frequency and power according to shore electric power are determined two in shore electric power
Parallel power inverter output current：
Wherein,It is the output current of the first shore electric power power inverter,It is the output of the second shore electric power power inverter
Electric current, Z1=R1+jX1It is the equivalent output impedance of the first shore electric power power inverter, R1It is the first shore electric power power inverting
The resistance of device, X1It is the reactance of the first shore electric power power inverter, Z2=R2+jX2It is the second shore electric power power inverter
Equivalent output impedance, R2It is the resistance of the second shore electric power power inverter, X2It is the electricity of the second shore electric power power inverter
It is anti-,It is load side voltage in shore electric power, U0It is load-side amplitude in shore electric power,It is first
The output voltage of shore electric power power inverter, U1It is the output voltage amplitude of the first shore electric power power inverter,It is
The output voltage phase of one shore electric power power inverter,It is the output electricity of the second shore electric power power inverter
Pressure, U2It is the output voltage amplitude of the second shore electric power power inverter,It is the output of the second shore electric power power inverter
Voltage-phase；
Step 5.3.2：Circulation in calculating shore electric power between two power inverters：
(1) when in shore electric power two power inverter output voltages only exist difference in magnitude and when not existing phase difference, then bank electricity
Circulation in power supply between two power invertersComputing formula it is as follows：
(2) when in shore electric power two power inverter output voltages only exist phase difference and when not existing difference in magnitude, then bank electricity
Circulation in power supply between two power invertersComputing formula it is as follows：
Step 5.3.3：Calculate in shore electric power between two power inverters because the apparent energy of circulating loss is SH, because of ring
Flow the active-power P of lossHWith the reactive power Q because of circulating lossH：
(1) when in shore electric power two power inverter output voltages only exist difference in magnitude and when not existing phase difference, then bank electricity
In power supply between two power inverters because circulating loss apparent energy be SH, because of the active-power P of circulating lossHAnd because
The reactive power Q of circulating lossHComputing formula it is as follows：
Wherein, R1=R2=Ri, X1=X2=Xi；
(2) when in shore electric power two power inverter output voltages only exist phase difference and when not existing difference in magnitude, then bank electricity
In power supply between two power inverters because circulating loss apparent energy be SH, because of the active-power P of circulating lossHAnd because
The reactive power Q of circulating lossHComputing formula it is as follows：
(3) when two power inverter output voltages had not only had phase difference but also there is difference in magnitude in shore electric power, then bank electricity is electric
Because of the active-power P of circulating loss between two power inverters in sourceHWith the reactive power Q because of circulating lossHComputing formula
It is as follows：
Wherein, Δ U is two voltage amplitude value differences of power inverter in shore electric power,For two power are inverse in shore electric power
Become the voltage phase difference of device；
Step 5.3.4：According to step 5.3.3 obtain because of the active-power P of circulating lossHWith the reactive power because of circulating loss
QHDetermine two voltage amplitude value differences of power inverter in shore electric powerWith phase difference U：
Step 5.3.5：It is determined that adding two power inverter output voltage amplitude regulated quantity Δs in the shore electric power after PI regulations
Ui：
Wherein, Kp, KIIt is PI regulation parameters, Δ U1=Δ U2=Δ Ui, Δ U1For shore electric power First power inverter is exported
Voltage magnitude regulated quantity, Δ U2It is second power inverter output voltage amplitude regulated quantity of shore electric power, QHiIt is shore electric power
Because of the reactive power of circulating loss, i=1,2, s are Laplace transformation after addition pi regulator to i-th power inverter.
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| CN107944689A (en) * | 2017-11-19 | 2018-04-20 | 国网浙江省电力公司电力科学研究院 | A kind of bank electricity operation grade analysis method |
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| CN110943449A (en) * | 2019-12-09 | 2020-03-31 | 国网智慧能源交通技术创新中心(苏州)有限公司 | Centralized shore power station level system access method and system |
| CN111026011A (en) * | 2019-11-19 | 2020-04-17 | 天津市中天新科技股份有限公司 | Shore power on-line monitoring management system and method |
| CN111884344A (en) * | 2020-08-10 | 2020-11-03 | 合肥三物信息技术有限公司 | Shore power box control power supply on-off device |
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| CN111026011A (en) * | 2019-11-19 | 2020-04-17 | 天津市中天新科技股份有限公司 | Shore power on-line monitoring management system and method |
| CN110943449A (en) * | 2019-12-09 | 2020-03-31 | 国网智慧能源交通技术创新中心(苏州)有限公司 | Centralized shore power station level system access method and system |
| CN111884344A (en) * | 2020-08-10 | 2020-11-03 | 合肥三物信息技术有限公司 | Shore power box control power supply on-off device |
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