Household portable photovoltaic plant performance testing device
Technical field
The present invention relates to solar photovoltaic generation system, a kind of household portable photovoltaic plant performance testing device especially is provided.
Background technology
Along with the attention that the mankind use new energy development, strengthened the input of fund, the photovoltaic cause has also obtained flourish.The family owing to characteristics such as its power are little, versatile and flexible, easy for installation, is suitable for peasants and herdsmen and employings such as nomadic people's household electricity, the power supply of communicating by letter at vast areas without electricity with the branch of photovoltaic system as photovoltaic generation.Along with the progress and development of component technology, the city is progressively moved towards with grid-connected photovoltaic system in the family simultaneously, and the perfect adaptation of photovoltaic generation and building has constituted family photovoltaic generating systems such as roof, curtain wall.
The family mainly is divided into from the net and two major types that are incorporated into the power networks with photovoltaic system, still be that the grid-connected system quality will directly have influence on the safety of local electrical network no matter from net, and user's personal safety as well as the property safety, yet still there is not complete photovoltaic generation pick-up unit in the industry, various and the family photovoltaic generating system their location dispersion of existing incomplete photovoltaic generation performance detection apparatus device brings inconvenience such as instrument transportation, installation testing to the tester.
Summary of the invention
The technical problem to be solved in the present invention is: for overcoming the problems referred to above, provide a kind of household portable photovoltaic plant performance testing device that can detect multiple photovoltaic plant electrical property and safeguard protection.
The technical solution adopted for the present invention to solve the technical problems is: a kind of household portable photovoltaic plant performance testing device; has the measurement casing; the quality of power supply and defencive function measurement mechanism; the board plug type front panel; the board plug type back panel; the quality of power supply and defencive function measurement mechanism have the Communication Control measuring unit; the photovoltaic DC analog power; power quality analyzer; the AC analog power; the RLC load; IV tracing analysis instrument; the accumulator simulator; oscillograph; the energy consumption load; Communication Control measuring unit and photovoltaic DC analog power; power quality analyzer; IV tracing analysis instrument; the accumulator simulator is electrically connected; be connected with change-over switch between energy consumption load and the AC analog power; RLC load and energy consumption load; power quality analyzer is electrically connected; oscillograph is connected between energy consumption load and the AC analog power; the AC analog power is electrically connected with power quality analyzer; described photovoltaic DC analog power is connected with terminal No. 1; described RLC load is connected with terminal No. 2; described IV tracing analysis instrument is connected with terminal No. 3, and described accumulator simulator is connected with terminal No. 4.
The display unit of the described quality of power supply and defencive function measurement mechanism and button parts are installed on the front panel, and the fast insert-pull interface of the described quality of power supply and defencive function measurement mechanism is installed on the back panel.
Described measurement casing has for front panel, the laterally inserted horizontal socket of back panel, and described measurement casing has for front panel, the vertical vertical socket that inserts of back panel.
The described measurement casing left and right sides is provided with air vent and the portable handle of transportation that has vent fan, and described measurement bottom half is equipped with the wheel that can turn to brake.
The quality of power supply and defencive function measurement mechanism can be tested electric energy quality test project and defencive function test event.The electric energy quality test project comprises array I-V test, inversion efficiency test, the test of grid-connected current harmonic wave, MPPT efficiency test, trace test, power factor test, operating voltage test, frequency of operation test, DC component test and noise testing.The defencive function test event comprises overvoltage/undervoltage protection test, crosses the underfrequency protection test, the test of counnter attack discharge prevention, protection to error-polarity connection test, overload protection test, anti-isolated island test, shutdown test automatically, soft start test, recover to be incorporated into the power networks test.
The invention has the beneficial effects as follows: household portable of the present invention photovoltaic plant performance testing device, all testing tools are integrated in the portable movably casing, be easy to transportation, and connect between each instrument and finish, only the fast insert-pull mouth that the input of photovoltaic plant and the end that is incorporated into the power networks need be connected to back panel can be tested, and conveniently saves trouble.
Description of drawings
The present invention is further described below in conjunction with accompanying drawing.
Fig. 1 is the catenation principle figure of the quality of power supply and defencive function measurement mechanism among the present invention;
The cut-off point synoptic diagram of Fig. 2 when to be the family with the grid-connected photovoltaic system adopt the present invention to test;
Fig. 3 is the cut-off point synoptic diagram of family when the net photovoltaic system adopts the present invention to test;
Fig. 4 is a middle structural representation of measuring casing of the present invention;
Fig. 5 is for measuring the structural representation that casing is installed front panel among the present invention;
Fig. 6 is for measuring the structural representation that casing is installed back panel among the present invention;
Among the figure: No. 1.1 terminals, No. 2.2 terminals, No. 3.3 terminals, No. 4.4 terminals.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the synoptic diagram of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
Shown in Fig. 1-6, a kind of household portable photovoltaic plant performance testing device has the casing of measurement, the quality of power supply and defencive function measurement mechanism, board plug type front panel, board plug type back panel.
The quality of power supply and defencive function measurement mechanism have Communication Control measuring unit, photovoltaic DC analog power, power quality analyzer, AC analog power, RLC load, IV tracing analysis instrument, accumulator simulator, oscillograph, energy consumption load.
The Communication Control measuring unit is electrically connected with photovoltaic DC analog power, power quality analyzer, IV tracing analysis instrument, accumulator simulator, be connected with change-over switch between energy consumption load and the AC analog power, the RLC load is electrically connected with energy consumption load, power quality analyzer, oscillograph is connected between energy consumption load and the AC analog power, and the AC analog power is electrically connected with power quality analyzer.The photovoltaic DC analog power is connected with terminal 1 No. 1, and the RLC load is connected with terminal 2 No. 2, and IV tracing analysis instrument is connected with terminal 3 No. 3, and the accumulator simulator is connected with terminal 4 No. 4.
As shown in Figure 5, the display unit and the button parts of the quality of power supply and defencive function measurement mechanism are installed on the front panel, and as shown in Figure 6, the fast insert-pull interface of the quality of power supply and defencive function measurement mechanism is installed on the back panel.
As shown in Figure 4, measure casing and have, measure casing and have for front panel, the vertical vertical socket that inserts of back panel for front panel, the laterally inserted horizontal socket of back panel.Measure the casing left and right sides and be provided with air vent and the portable handle of transportation that has vent fan, measure bottom half the wheel that can turn to brake is housed.
The quality of power supply and defencive function measurement mechanism can be tested electric energy quality test project and defencive function test event.The electric energy quality test project comprises array I-V test, inversion efficiency test, the test of grid-connected current harmonic wave, MPPT efficiency test, trace test, power factor test, operating voltage test, frequency of operation test, DC component test and noise testing.The defencive function test event comprises overvoltage/undervoltage protection test, crosses the underfrequency protection test, the test of counnter attack discharge prevention, protection to error-polarity connection test, overload protection test, anti-isolated island test, shutdown test automatically, soft start test, recover to be incorporated into the power networks test.
As shown in Figure 2, when the family adopted the present invention to test with the grid-connected photovoltaic system, header box and inverter disconnected, and photovoltaic array is connected with No. 3 terminals 3 with header box, and No. 1 terminal 1 is connected with inverter, and be incorporated into the power networks cabinet and electrical network disconnect, and the cabinet that is incorporated into the power networks is connected with No. 2 terminals 2.
As shown in Figure 3, the family is used when the net photovoltaic system adopts the present invention to test, header box and controller disconnect, photovoltaic array is connected with No. 3 terminals 3 with header box, No. 1 terminal 1 is connected with controller, and inverter and load disconnect, and inverter is connected with No. 2 terminals 2, controller and accumulator disconnect, and controller is connected with No. 4 terminals 4.
The photovoltaic DC analog power adopts the adjustable constant voltage/current isolator of 1000V electric current and voltage, the AC analog power adopts voltage and frequency adjustable AC power, R, L, C load adjustable demonstration load box is respectively adopted in the RLC load, IV tracing analysis instrument adopts outdoor photovoltaic array tester, and resistance box is adopted in the energy consumption load.
With above-mentioned foundation desirable embodiment of the present invention is enlightenment, and by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.The technical scope of this invention is not limited to the content on the instructions, must determine its technical scope according to the claim scope.