CN102288817B - A kind of charging pile consumption detection system and detection method based on virtual load calibrating - Google Patents

Abstract

The invention discloses a charging pile power consumption detection system and detection method based on virtual load verification, wherein the detection system includes an AC charging pile, a voltage source, a current source, a first power consumption tester and a second power consumption tester; The Un port of the source is connected to the UN0 port of the AC charging pile, the Ua port of the voltage source is connected to the UA0 of the AC charging pile through the first power consumption tester; the Ia ₊ of the current source is connected to the UA0 of the AC charging pile, and the Ia of the current source ‑Connect with UA1 _of the AC charging pile, and connect the second power consumption tester in parallel between UA0 and UA1. The detection method is: after connecting the voltage source and the current source, the power consumption of the AC charging pile when charging and not charging can be directly and accurately tested by the first tester and the second tester, so as to ensure the interests of users .

Description

A charging pile power consumption detection system and detection method based on virtual load verification

technical field

The invention relates to a detection system and a detection method for charging pile power consumption.

Background technique

During the use of the AC charging pile, it will generate internal power consumption. According to whether the charging pile is in the charging state, the power consumption of the charging pile can be divided into dynamic power consumption and static power consumption. The static power consumption is generated by the voltage phase, and the dynamic power consumption is generated jointly by the current and voltage phases. Accurately measuring the power consumption of the AC charging pile is conducive to accurately charging users, thereby safeguarding the interests of users. At present, there is no special system for detecting the power consumption of AC charging piles. Even if there is, it is an auxiliary tool. This will produce two results. One is that the power consumption cannot be measured, and the other is the measured power consumption. Inaccurate, therefore, it becomes very important to provide a special detection system. In order to accurately measure the two parts of the power consumption of the AC charging pile, the present invention proposes a power consumption testing system for the AC charging pile based on virtual load verification.

Contents of the invention

The first object of the present invention is to provide a charging pile power consumption detection system based on virtual load verification, which can accurately detect the static power consumption and dynamic power consumption of the AC charging pile.

The second object of the present invention is to provide a method for detecting power consumption of charging piles based on virtual load verification, by which static power consumption and dynamic power consumption of AC charging piles can be accurately detected.

In order to achieve the above-mentioned first purpose, a charging pile power consumption detection system based on virtual load verification includes an AC charging pile, a voltage source, a current source, a first power consumption tester and a second power consumption tester; the AC charging The pile has two voltage input ports UN0 and UA0 and two voltage output ports UN1 and UA1; the voltage source has Un and Ua voltage output ports; the current source has Ia ₊ and Ia _- current output ports; the Un voltage output port is connected to the UN0 voltage input port , the Ua voltage output port is connected to the UA0 voltage input port, and the first power consumption tester is connected in series between the Ua voltage output port and the UA0 voltage input port. The power consumption value generated by the voltage phase; the Ia ₊ current output port is connected to the UA0 voltage input port, the Ia _- current output port is connected to the UA1 voltage output port, and the second power consumption tester is connected in parallel between the UA0 voltage input port and the UA1 voltage output port During the period, the power consumption value of the AC charging pile generated by the current phase is directly read through the second power consumption tester; wherein, the voltage source is turned on, and the power consumption value read from the first power consumption tester The power consumption value is the static power consumption; start the voltage source and the current source, and add the power consumption values read from the first power consumption tester and the second power consumption tester to get dynamic power consumption.

As a specific example, the first power consumption tester includes a first power input module, a first measurement module, a first calculation module, a first power output module and a first display module, wherein the first measurement module uses Obtaining the current digital voltage value from the first power input module, and obtaining the current digital current value from the first power output module; the first power output module is used to provide the current voltage for the first measurement module The digital current value returned by the AC charging pile; the first operation module is used to calculate the current power consumption according to the digital voltage value and digital current value obtained by the first measurement module, and calculate the current power consumption output to the first display module; the first display module is used to display the current power consumption calculated by the first calculation module to the terminal user.

As a specific example, the second power consumption tester includes a second power input module, a second measurement module, a second calculation module, a second power output module, and a second display module; wherein, the second measurement module uses Obtaining the current digital voltage value from the second power input module, and obtaining the current digital current value from the second power output module; the second power output module is used to provide the current voltage for the second measurement module The digital current value returned by the AC charging pile; the second operation module is used to perform calculations based on the digital voltage value and digital current value obtained by the second measurement module to obtain the current power consumption, and calculate the current power consumption output to the second display module; the second display module is used to display the current power consumption calculated by the second calculation module to the terminal user.

The beneficial effect of the above-mentioned charging pile power consumption detection system is: because the voltage source, the current source, the first power consumption tester and the second power consumption tester are set up, in this way, through the first power consumption tester and the second power consumption tester The instrument can accurately test the power consumption of the AC charging pile, and the power consumption detection system has a simple structure and low cost.

In order to achieve the above-mentioned second purpose, a charging pile power consumption detection method based on virtual load verification includes static power consumption detection and dynamic power consumption detection; wherein, the static power consumption is generated by the AC charging pile when it is not charging The power consumption is generated by the voltage phase; the dynamic power consumption is the power consumption generated by the AC charging pile during charging, which is jointly generated by the voltage phase and the current phase;

The steps of the static power consumption detection method are: (1) Connect the Un voltage output port of the voltage source to the UN0 voltage input port of the AC charging pile, connect the Ua voltage output port of the voltage source to the UA0 voltage input port of the AC charging pile, And connect the first power consumption tester in series between the Ua voltage output port and the UA0 voltage input port; (2) connect the voltage source, at this time, the numerical value of the static power consumption can be directly read by the first power consumption tester ;

The steps of the detection method for dynamic power consumption are as follows: 1) Connect the Un voltage output port of the voltage source to the UN0 voltage input port of the AC charging pile, connect the Ua voltage output port of the voltage source to the UA0 voltage input port of the AC charging pile, and Connect the first power consumption tester in series between the Ua voltage output port and the UA0 voltage input port; 2) Connect the Ia ₊ current output port of the current source to the UA0 voltage input port of the AC charging pile, and connect the Ia _- current of the current source The output port is connected to the UA1 voltage output port of the AC charging pile, and the second power consumption tester is connected in parallel between the UA0 voltage input port and the UA1 voltage output port; 3) Start the voltage source and the current source. The power consumption generated by the voltage phase can be directly read in the power consumption tester, the power consumption generated by the current phase can be directly read in the second power consumption tester, and then the value in the first power consumption tester Adding the value in the second power consumption tester is the dynamic power consumption.

As a specific example, the first power consumption tester includes a first power input module, a first measurement module, a first calculation module, a first power output module and a first display module, wherein the first measurement module uses Obtaining the current digital voltage value from the first power input module, and obtaining the current digital current value from the first power output module; the first power output module is used to provide the current voltage for the first measurement module The digital current value returned by the AC charging pile; the first operation module is used to calculate the current power consumption according to the digital voltage value and digital current value obtained by the first measurement module, and calculate the current power consumption output to the first display module; the first display module is used to display the current power consumption calculated by the first calculation module to the terminal user.

As a specific example, the second power consumption tester includes a second power input module, a second measurement module, a second calculation module, a second power output module, and a second display module; wherein, the second measurement module uses Obtaining the current digital voltage value from the second power input module, and obtaining the current digital current value from the second power output module; the second power output module is used to provide the current voltage for the second measurement module The digital current value returned by the AC charging pile; the second operation module is used to perform calculations based on the digital voltage value and digital current value obtained by the second measurement module to obtain the current power consumption, and calculate the current power consumption output to the second display module; the second display module is used to display the current power consumption calculated by the second computing module to the terminal user.

The beneficial effect of the method for detecting the power consumption of the charging pile is that: since the voltage source, the current source, the first power consumption tester and the second power consumption tester are set, the first power consumption tester and the second power consumption tester The instrument can accurately test the static power consumption and dynamic power consumption of the AC charging pile, and the power consumption detection method is simple and low in cost.

Description of drawings

Fig. 1 is a frame structure diagram of the present invention.

detailed description

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Figure 1 shows the charging pile power consumption detection system based on virtual load verification in the present invention, including AC charging pile 1, voltage source 2, current source 3, first power consumption tester 4 and second power consumption tester 5; The AC charging pile 1 described above has two voltage input ports UN0 and UA0 and two voltage output ports UN1 and UA1; the voltage source 2 has Un and Ua voltage output ports; the current source 3 has Ia ₊ and Ia _- current output ports; Un voltage output The port is connected to the UN0 voltage input port, the Ua voltage output port is connected to the UA0 voltage input port, and the first power consumption tester 4 is connected in series between the Ua voltage output port and the UA0 voltage input port; the Ia ₊ current output port is connected to the UA0 voltage input port port connection, Ia _- the current output port is connected to the UA1 voltage output port, and the second power consumption tester 5 is connected in parallel between the UA0 voltage input port and the UA1 voltage output port.

The first power consumption tester 4 includes a first power input module, a first measurement module, a first computing module, a first power output module and a first display module, and the first power input module is connected to the Ua voltage output port, The first power output module is connected to the UA0 voltage input port. The second power consumption tester 5 includes a second power input module, a second measurement module, a second computing module, a second power output module and a second display module, and the second power input module is connected to the UA0 voltage input port, and the second power output module is connected to the voltage output port of UA1.

Using the above detection system to detect the power consumption of AC charging piles includes the detection of static power consumption and the detection of dynamic power consumption; among them, the static power consumption is the power consumption generated by the AC charging pile when it is not charging, which is generated by the voltage phase; dynamic power consumption It is the power consumption generated by the AC charging pile during charging, which is jointly generated by the voltage phase and the current phase;

Wherein, the detection method step of the static power consumption is: power on the voltage source, at this time, the first measurement module receives the current digital voltage value from the first power input module, and obtains the current digital voltage value from the first power output module at the same time For the current digital current value of the charging pile, the first calculation module performs calculations according to the digital voltage value and digital current value, and obtains a power consumption value, which is displayed to the end user through the first display module, which is static power consumption.

The steps of the detection method of dynamic power consumption are: start the voltage source 2 and the current source 3, at this time, the first measurement module receives the current digital voltage value from the first power input module, and obtains the current digital voltage value from the first power output module at the same time Through the current digital current value of the AC charging pile, the first calculation module performs calculations according to the digital voltage value and digital current value, and obtains the power consumption value, and displays it to the end user through the first display module, and the second measurement module receives The current digital voltage value from the second power input module and the current digital current value from the AC charging pile in the second power output module are obtained at the same time, and the second operation module performs operations according to the digital voltage value and digital current value, and obtains The power consumption value is displayed to the end user through the second display module, and then the value in the first power consumption tester is added to the value in the second power consumption tester to obtain the dynamic power consumption.

The detection system and detection method of the present invention can accurately measure the power consumption of the AC charging pile, so as to protect the interests of users.

Claims (6)

1. it is a kind of based on virtual load calibrating charging pile consumption detection system, it is characterised in that：Including alternating-current charging pile, voltage Source, current source, the first power consumption tester and the second power consumption tester；Described alternating-current charging pile has the voltage of UN0, UA0 two defeated Inbound port and the voltage output port of UN1, UA1 two；Voltage source has Un, Ua voltage output port；Current source has Ia₊、Ia_-Electricity Stream output port；Un voltage outputs port is connected with UN0 control sources port, Ua voltage outputs port and UA0 voltage input ends Mouth is connected, and the first power consumption tester is series between Ua voltage outputs port and UA0 control sources port, by the first power consumption Tester directly reads the power consumption numerical value mutually produced by voltage in the alternating-current charging pile；Ia₊Current output terminal mouthful and UA0 voltages Input port is connected, Ia_-Current output terminal mouthful is connected with UA1 voltage outputs port, and the second power consumption tester is parallel to UA0 voltages Between input port and UA1 voltage outputs port, the alternating-current charging pile is directly read by electric current by the second power consumption tester The power consumption numerical value for mutually producing；Wherein, the voltage source is connected, the power consumption numerical value read from first power consumption tester is i.e. It is quiescent dissipation；Start the voltage source and the current source, will be surveyed from first power consumption tester and second power consumption The power consumption numerical value read in examination instrument is added as dynamic power consumption.

2. it is according to claim 1 based on virtual load calibrating charging pile consumption detection system, it is characterised in that：Described First power consumption tester includes the first Power Entry Module, the first measurement module, the first computing module, the first power supply output module And first display module, wherein, first measurement module is used to obtain current numeral electricity from the first Power Entry Module Pressure value, and obtain current digital current values from the first power supply output module；The first described power supply output module is used The digital current values returned through alternating-current charging pile under current voltage is provided for first measurement module；The first described computing The digital voltage value and digital current values that module is used to be obtained according to first measurement module carry out computing, draw current work( Consumption, and current power consumption is exported to the first display module；The first described display module is based on by first computing module The current power consumption for obtaining is shown to terminal user.

3. it is according to claim 1 and 2 based on virtual load calibrating charging pile consumption detection system, it is characterised in that：Institute The second power consumption tester stated includes second source input module, the second measurement module, the second computing module, second source output Module and the second display module；Wherein, second measurement module is used to obtain current number from second source input module Word magnitude of voltage, and obtain current digital current values from the second source output module；Described second source output mould Block is used to provide the digital current values returned through alternating-current charging pile under current voltage for second measurement module；Described second The digital voltage value and digital current values that computing module is used to be obtained according to second measurement module carry out computing, draw current Power consumption, and current power consumption is exported to the second display module；The second described display module is used for second computing module The current power consumption being calculated is shown to terminal user.

4. a kind of charging pile consumption detection method based on virtual load calibrating, it is characterised in that detection including quiescent dissipation and dynamic The detection of state power consumption；Wherein, quiescent dissipation is produced power consumption when uncharged of alternating-current charging pile, is mutually produced by voltage；It is dynamic State power consumption is the alternating-current charging pile power consumption produced when charging, and is produced by voltage phase and electric current are mutually common；

The detection method step of quiescent dissipation is：

(1) the Un voltage outputs port of voltage source is connected with the UN0 control sources port of alternating-current charging pile, by the Ua of voltage source Voltage output port is connected with the UA0 control sources port of alternating-current charging pile, and the first power consumption tester is series at into Ua voltages Between output port and UA0 control sources port；

(2) voltage source is connected, now, the numerical value of quiescent dissipation then can be directly read by the first power consumption tester；

The detection method step of dynamic power consumption is：

1) the Un voltage outputs port of voltage source is connected with the UN0 control sources port of alternating-current charging pile, by the Ua of voltage source Voltage output port is connected with the UA0 control sources port of alternating-current charging pile, and the first power consumption tester is series at into Ua voltages Between output port and UA0 control sources port；

2) by the Ia of current source₊Current output terminal mouthful is connected with the UA0 control sources port of alternating-current charging pile, by the Ia of current source_- Current output terminal mouthful is connected with the UA1 voltage outputs port of alternating-current charging pile, and it is defeated that the second power consumption tester is parallel into UA0 voltages Between inbound port and UA1 voltage outputs port；

3) start voltage source and current source, now, can directly read what is mutually produced by voltage in the first power consumption tester Power consumption, can directly read the power consumption mutually produced by electric current in the second power consumption tester, then, by the first power consumption tester Numerical value and the second power consumption tester in numerical value be added as dynamic power consumption.

5. it is according to claim 4 based on virtual load calibrating charging pile consumption detection method, it is characterised in that：Described First power consumption tester includes the first Power Entry Module, the first measurement module, the first computing module, the first power supply output module And first display module, wherein, first measurement module is used to obtain current numeral electricity from the first Power Entry Module Pressure value, and obtain current digital current values from the first power supply output module；The first described power supply output module is used The digital current values returned through alternating-current charging pile under current voltage is provided for first measurement module；The first described computing The digital voltage value and digital current values that module is used to be obtained according to first measurement module carry out computing, draw current work( Consumption, and current power consumption is exported to the first display module；The first described display module is based on by first computing module The current power consumption for obtaining is shown to terminal user.

6. according to claim 4 or 5 based on virtual load calibrating charging pile consumption detection method, it is characterised in that：Institute The second power consumption tester stated includes second source input module, the second measurement module, the second computing module, second source output Module and the second display module；Wherein, second measurement module is used to obtain current number from second source input module Word magnitude of voltage, and obtain current digital current values from the second source output module；Described second source output mould Block is used to provide the digital current values returned through alternating-current charging pile under current voltage for second measurement module；Described second The digital voltage value and digital current values that computing module is used to be obtained according to second measurement module carry out computing, draw current Power consumption, and current power consumption is exported to the second display module；The second described display module is used for second computing module The current power consumption being calculated is shown to terminal user.