CN100384046C - High voltage reactive-load compensation complete equipment - Google Patents

High voltage reactive-load compensation complete equipment Download PDF

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Publication number
CN100384046C
CN100384046C CNB2005101033465A CN200510103346A CN100384046C CN 100384046 C CN100384046 C CN 100384046C CN B2005101033465 A CNB2005101033465 A CN B2005101033465A CN 200510103346 A CN200510103346 A CN 200510103346A CN 100384046 C CN100384046 C CN 100384046C
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China
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resistance
connect
diode
frequency
reactor
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CN1731648A (en
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李晓刚
程勇
王思顺
范劲宏
***
王振
范维礼
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Shandong University of Science and Technology
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Shandong University of Science and Technology
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/30—Reactive power compensation

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Abstract

The present invention relates to high voltage reactive compensation complete equipment which comprises an electric power capacitor. The present invention is mainly characterized in that the equipment is provided with a filter which comprises reactors L1, L2, L3, L4, L5 and L6, resistors R1, R2 and R3 and high frequency resistors C1, C2 and C3; the equipment comprises a voltage transformer PT, a harmonic detecting unit with a frequency equal to and less than 150Hz, a high-order harmonic detecting unit with a frequency equal to and more than 200Hz, a harmonic frequency indicator memory unit with a frequency equal to and less than 150Hz, a harmonic frequency indicator memory unit with a frequency equal to and more than 200Hz, an overvoltage protection circuit, an overtemperature protection circuit and a protection switch circuit which comprises a time base circuit IC5 and a relay J3. When harmonic current exceeds a permissible value, a capacitor bank is cut off provisionally; when the harmonic current is reduced to the permissible value, the capacitor bank is used again; a high frequency filtration capacitor bank with little capacitance is connected to an electric network in parallel all along. The equipment has the advantages of simple structure, low cost and convenient use and popularization.

Description

High voltage reactive-load compensation complete equipment
Technical field
The present invention relates to a kind of device in power distribution reactive power compensation technology field, more particularly, the present invention relates to a kind of high voltage reactive-load compensation complete equipment.In International Patent Classification (IPC), the present invention should be divided into the H02J group.
Background technology
Along with the prolongation of high-voltage electric power circuit and the increase of high-power transformer, low-voltage capacitance compensating can not solve the problem of high pressure line loss and no-load transformer reactive loss.Even make terminal voltage be lower than acceptance value.High-pressure capacitance compensation is gradually spread now, mainly based on mains side and load side centralized compensation, when when harmonic wave appears in power line, find capacitor overcurrent or abnormal voice, administrative staff can in time cut off capacitor power, avoiding capacitor to damage, but this can cause power quality further to destroy.Particularly during line build-out, because harmonic wave is not fixed, after high order harmonic component occurs, the capacitive reactance of capacitor reduces, and the electric current off-rating of electric capacity and overcurrent can occur is because most of power factor controller is an electronic type, its poor anti jamming capability, the normal phenomenon that chaotic and Control Failure occur showing can cause leaky condenser even blast when serious, thereby cause supply line's fault.
Summary of the invention
The objective of the invention is to: at the deficiency of prior art, provide a kind of cheaply, can suppress harmonic wave, can prevent to cause capacitor blast or capacitor switching is irrational, can be contained in full automatic high voltage reactive-load compensation complete equipment on the high-voltage wire or in the cabinet of a certain section circuit, that can improve power supply quality because of factors such as overvoltage.
The objective of the invention is to be achieved through the following technical solutions:
Described high voltage reactive-load compensation complete equipment comprises power capacitor, and described power capacitor comprises the first power capacitor C-3W 1, the second power capacitor C-3W 2With the 3rd power capacitor C-3W 3
Main feature is: described high voltage reactive-load compensation complete equipment has a filter, and described filter comprises first to the 6th reactor L 1, L 2, L 3, L 4, L 5And L 6, wherein: the first reactor L 1With the second reactor L 2The same polarity series connection, the 3rd reactor L 3With the 4th reactor L 4The same polarity series connection, the 5th reactor L 5With the 6th reactor L 6The same polarity series connection;
Described filter comprises first to the 3rd resistance R 1, R 2And R 3
Described filter comprises first to the 3rd high frequency capacitance C 1, C 2And C 3
Described first resistance R 1With the first reactor L 1After the parallel connection again with the described first high frequency capacitance C 1An end connect;
Described second resistance R 2With the 3rd reactor L 3After the parallel connection again with the described second high frequency capacitance C 2An end connect;
Described the 3rd resistance R 3With the 5th reactor L 5After the parallel connection again with described the 3rd high frequency capacitance C 3An end connect;
The described first reactor L 1With the second reactor L 2Same polarity series connection back is by contact one ZJ of vacuum contactor 1With the first power capacitor C-3W 1An end connect;
Described the 3rd reactor L 3With the 4th reactor L 4Same polarity series connection back is by contact two ZJ of vacuum contactor 2With the second power capacitor C-3W 2An end connect;
Described the 5th reactor L 5With the 6th reactor L 6Same polarity series connection back is by contact three ZJ of vacuum contactor 3With the 3rd power capacitor C-3W 3An end connect;
The described first high frequency capacitance C 1The other end, the described second high frequency capacitance C 2The other end, described the 3rd high frequency capacitance C 3The other end, the described first power capacitor C-3W 1The other end, the described second power capacitor C-3W 2The other end and described the 3rd power capacitor C-3W 3The other end all link together;
Described first resistance R 1With the first reactor L 1The common port of the upside after the parallel connection connects the A phase of power line;
Described second resistance R 2With the 3rd reactor L 3The common port of the upside after the parallel connection connects the B phase of power line;
Described the 3rd resistance R 3With the 5th reactor L 5The common port of the upside after the parallel connection connects the C phase of power line;
Described high voltage reactive-load compensation complete equipment comprises voltage transformer pt, and the primary side of described voltage transformer pt is connected between the two-phase of power line, vacuum contactor ZJ and relay J 3Normally closed interlock series connection after be connected to the secondary side of described voltage transformer pt, the 4th resistance R 4, the 7th inductance L 7With the 5th resistance R 5The bleeder circuit that the series connection back is formed is connected to the secondary side of described voltage transformer pt, described the 7th inductance L 7With the 5th resistance R 5Common end grounding;
Described high voltage reactive-load compensation complete equipment has one to comprise the first operational amplifier IC 1The harmonic wave detecting unit of frequency≤150Hz, have one to comprise the 3rd operational amplifier IC 3The high order harmonic component detecting unit of frequency 〉=200Hz, have one to comprise the second operational amplifier IC 2The harmonic frequency indication mnemon of frequency≤150Hz, have one to comprise four-operational amplifier IC 4The harmonic frequency indication mnemon of frequency 〉=200Hz, an overvoltage crowbar is arranged. an overtemperature prote circuit is arranged, has one to comprise time-base circuit IC 5, relay J 3The protection switch circuit;
In the harmonic wave detecting unit of described frequency≤150Hz: have one by the 8th inductance L 8, the 4th capacitor C 4With the 9th inductance L 9The logical oscillating circuit of the band of the frequency≤150Hz that forms, described the 8th inductance L 8An end and the 4th resistance R 4With the 7th inductance L 7Common port connect described the 8th inductance L 8The other end and the 4th capacitor C 4An end connect described the 4th capacitor C 4The other end respectively with the 7th resistance R 7An end, the first operational amplifier IC 1'-' end and the 9th inductance L 9An end connect described the 9th inductance L 9The other end be connected with ground; The 8th resistance R 8An end and the described first operational amplifier IC 1'+' end connect the 8th resistance R 8Other end ground connection; Described the 7th resistance R 7The other end respectively with the first voltage stabilizing didoe DW 1Negative pole, the first operational amplifier IC 1Output connect the described first voltage stabilizing didoe DW 1Positive pole respectively with the first diode D 1The positive pole and the second diode D 2Positive pole connect the described first diode D 1Negative pole connect time-base circuit IC 5Input;
In the harmonic frequency indication mnemon of described frequency≤150Hz: described harmonic frequency indication mnemon comprises the second operational amplifier IC 2, the 3rd diode D 3, first set resistance W 1, second set resistance R 13, the first light-emitting diode H 1With a current-limiting resistance R 6Wherein: the described second operational amplifier IC 2Output connect described the 3rd diode D 3Positive pole, described the 3rd diode D 3Negative pole connect the described second diode D respectively 2Negative pole and the described second operational amplifier IC 2'+' end, described first sets resistance W 1An end connect power supply+12V, described first sets resistance W 1The other end connect the described second operational amplifier IC respectively 2'-' end and described second the setting resistance R 13An end, described second sets resistance R 13The other end connect the described second operational amplifier IC respectively 2Output and the described first light-emitting diode H 1Positive pole, the described first light-emitting diode H 1Negative pole by a described current-limiting resistance R 6Ground connection;
In the high order harmonic component detecting unit of described frequency 〉=200Hz: described high order harmonic component detecting unit comprises by the tenth high-frequency inductor coil L 10With the 5th capacitor C 5High order harmonic component absorption detecting loop, the 3rd operational amplifier IC of the frequency 〉=200Hz that forms 3, the 9th resistance R 9, the 11 resistance R 11, the second voltage stabilizing didoe DW 2, the 4th diode D 4With the 5th diode D 5Described the 5th capacitor C 5An end and described the 4th resistance R 4With the 7th inductance L 7Common port connect described the 5th capacitor C 5The other end respectively with described the 9th resistance R 9An end, the 3rd operational amplifier IC 3'-' end and the tenth high-frequency inductor coil L 10An end connect described the tenth high-frequency inductor coil L 10Other end ground connection, described the 11 resistance R 11An end ground connection, described the 11 resistance R 11The other end connect described the 3rd operational amplifier IC 3'+' end, described the 3rd operational amplifier IC 3Output connect described the 9th resistance R respectively 9The other end and the described second voltage stabilizing didoe DW 2Negative pole, the described second voltage stabilizing didoe DW 2Positive pole connect the 4th diode D respectively 4With the 5th diode D 5Positive pole, described the 4th diode D 4Negative pole connect time-base circuit IC 5Input;
In the harmonic frequency indication mnemon of described frequency 〉=200Hz: described harmonic frequency indication mnemon comprises four-operational amplifier IC 4, the 6th diode D 6, the 3rd set resistance W 2, the 4th set resistance R 14, the second light-emitting diode H 2With No. two current-limiting resistance R 10Wherein: described four-operational amplifier IC 4Output connect described the 6th diode D 6Positive pole, described the 6th diode D 6Negative pole connect described the 5th diode D respectively 5Negative pole and described four-operational amplifier IC 4'+' end, the described the 3rd sets resistance W 2An end connect power supply+12V, set resistance W described No. three 2The other end connect described four-operational amplifier IC respectively 4'-' end and described the 4th the setting resistance R 14An end, the described the 4th sets resistance R 14The other end connect described four-operational amplifier IC respectively 4Output and the described second light-emitting diode H 2Positive pole, the described second light-emitting diode H 2Negative pole by described No. two current-limiting resistance R 10Ground connection;
Described overvoltage crowbar comprises that the 5th sets resistance W 3, the 3rd voltage stabilizing didoe DW 3With the 8th diode D 8, the described the 5th sets resistance W 3An end and described the 4th resistance R 4With the 7th inductance L 7Common port connect, the described the 5th sets resistance W 3The other end and described the 3rd voltage stabilizing didoe DW 3Negative terminal connects, described the 3rd voltage stabilizing didoe DW 3Anode connect described the 8th diode D 8Positive pole, described the 8th diode D 8Negative pole connects time-base circuit IC 5Input;
Described overtemperature prote circuit comprises temperature sensor W 0, temperature sets adjustable resistance W 4With the 7th diode D 7, described temperature sensor W 0An end connect power supply+12V, described temperature sensor W 0The other end and described temperature set adjustable resistance W 4An end connect, described temperature is set adjustable resistance W 4The other end connect the 7th diode D 7Positive pole, described the 7th diode D 7Negative pole connect time-base circuit IC 5Input;
Described protection switch circuit comprises by electrochemical capacitor C 6With the 12 resistance R 12The delay circuit, the time-base circuit IC that form 5, relay J 3With the 7th capacitor C 7, described electrochemical capacitor C 6With the 12 resistance R 12Back its electrochemical capacitor C in parallel 6Negativing ending grounding, its electrochemical capacitor C 6Anode connect time-base circuit IC 5Input, described the 7th capacitor C 7An end ground connection, described the 7th capacitor C 7The other end connect described time-base circuit IC 5An end, described relay J 3Be connected across described time-base circuit IC 5Two ends, described relay J 3An end be connected+the 12V power supply on.
Described first to the 3rd resistance R 1, R 2And R 3Be noninductive resistance.
Because the present invention adopted above-mentioned technical scheme, when harmonic current hour, by filter on the spot filtering eliminate; When harmonic current surpasses permissible value, temporarily excise the capacitor group; When harmonic current is reduced to permissible value by the time, drop into the capacitor group once more, and the HF filtering capacitor group of low capacity is parallel to all the time in the electrical network, has both compensated idlely, eliminated the harmonic components in the power circuit again, power waveform is improved.Another characteristics of the present invention are the memory functions with harmonic frequency: for example, when the harmonic current that occurs in the circuit surpassed permissible value, equipment is excision capacitor group automatically.Fault can drop into the capacitor group again later automatically, and permanent memory is done in the harmonic frequency indication of appearance, and demonstration is harmonic wave or the harmonic wave more than 4 times below 3 times.This equipment also has over-voltage protecting function and overtemperature prote function,
Description of drawings
Accompanying drawing 1 is a fundamental diagram of the present invention.Provided detailed annexation among the figure.
Embodiment
The present invention is further described below in conjunction with drawings and Examples, and accompanying drawing 1 is a most preferred embodiment of the present invention.Described high voltage reactive-load compensation complete equipment has a filter, and described filter comprises: first to the 6th reactor L 1, L 2, L 3, L 4, L 5, L 6, first to the 3rd resistance R 1, R 2, R 3, first to the 3rd high frequency capacitance C 1, C 2And C 3, first to the 3rd power capacitor C-3W 1, C-3W 2And C-3W 3In addition, first to the 3rd contact ZJ that also comprises vacuum contactor 1, ZJ 2With ZJ 3Wherein: first to the second reactor L 1With L 2The same polarity series connection, the 3rd to the 4th reactor L 3With L 4The same polarity series connection, the 5th to the 6th reactor L 5With L 6The same polarity series connection.Described resistance R 1With reactor L 1After the parallel connection again with described high frequency capacitance C 1An end connect; Described resistance R 2With reactor L 3After the parallel connection again with described high frequency capacitance C 2An end connect; Described resistance R 3With reactor L 5After the parallel connection again with described high frequency capacitance C 3An end connect.Described reactor L 1And L 2Pass through the first contact ZJ of vacuum contactor after the same polarity series connection again 1With power capacitor C-3W 1An end connect; Described reactor L 3And L 4Pass through the second contact ZJ of vacuum contactor after the same polarity series connection again 2With power capacitor C-3W 2An end connect; Described reactor L 5And L 6Pass through the 3rd contact ZJ of vacuum contactor after the same polarity series connection again 3With power capacitor C-3W 3An end connect.Described high frequency capacitance C 1The other end, high frequency capacitance C 2The other end, high frequency capacitance C 3The other end, described power capacitor C-3W 1The other end, power capacitor C-3W 2The other end and power capacitor C-3W 3The other end all link together.Described resistance R 1With reactor L 1The common port of the upside after the parallel connection connects the A phase of power line, resistance R 2With reactor L 3The common port of the upside after the parallel connection connects the B phase of power line, resistance R 3With reactor L 5The common port of the upside after the parallel connection connects the C phase of power line.Can also see in this embodiment: described high voltage reactive-load compensation complete equipment comprises voltage transformer pt, and the primary side of described voltage transformer pt is connected between the two-phase of power line, vacuum contactor ZJ and relay J 3Normally closed interlock series connection after be connected to the secondary side of described voltage transformer pt, resistance R 4, inductance L 7And resistance R 5The bleeder circuit that the series connection back is formed is connected to the secondary side of described voltage transformer pt, described inductance L 7And resistance R 5Common end grounding.
The harmonic wave detecting unit and the high order harmonic component detecting unit of frequency 〉=200Hz and the corresponding with it harmonic frequency indication mnemon that also comprise frequency≤150Hz in this embodiment; In addition, also have overvoltage crowbar and overtemperature prote circuit; In addition, also has a supporting with it protection switch circuit.
Its operation principle is as follows: be example mutually with A now, when system sent electricity, under normal situation, the power frequency of 50Hz was by reactor L 1, L 2Main contact ZJ with vacuum contactor 1To electric capacitor C-3W 1Charging because present Low ESR, so the pressure drop at reactor two ends is very little, has reached purpose of energy saving; When having harmonic wave to occur in the circuit, the reactor L of series connection 1, L 2Present high impedance, limited the increase of power capacitor electric current; And simultaneously, harmonic current is by noninductive resistance R 1To high frequency capacitance C 1Charging has increased filter effect.When if harmonic voltage surpasses permissible value, the work of harmonic wave detecting unit, the main contact ZJ of disconnection vacuum contactor 1, power capacitor C-3W 1Temporarily out of service, and noninductive resistance R 1With reactor L 1After the parallel connection again with high frequency capacitance C 1Operation is continued in the loop of series connection, the effect that reach and absorb harmonic wave, improves power supply quality.The operation principle of other two-phase is identical, repeats no more.
The test point of harmonic source is the secondary output of voltage transformer pt, wherein said resistance R 4, inductance L 7And resistance R 5The series connection back forms bleeder circuit.It detects principle: by low frequency inductance coil L 8, L 9, capacitor C 4Form the resonant circuit about 150Hz, signal is from L 7Hot end take out, about 150Hz, L 9The voltage output at two ends is the highest, by operational amplifier IC 1Amplify, when reaching set point, voltage stabilizing didoe DW 1Puncture conducting, by ' or ' gate diode D 1Trigger time-base circuit IC 5, relay J 3Action, its normally-closed contact disconnects, high-pressure vacuum contactor ZJ action, its main contact disconnects (ZJ 1, ZJ 2, and ZJ 3Disconnect simultaneously), cut off power capacitor C-3W 1, C-3W 2And C-3W 3Power supply, power capacitor is deactivated, treat that harmonic wave is eliminated after, by capacitor C 6, resistance R 12The delay circuit of forming makes time-base circuit IC 5The output high potential, relay J 3Lose electric current, drop into power capacitor C-3W again 1, C-3W 2And C-3W 3
In like manner, by described high-frequency inductor coil L 10, capacitor C 5The high order harmonic component absorption circuit of component frequency 〉=200Hz, harmonic frequency is high more, high-frequency inductor coil L 10The voltage at two ends is big more, when surpassing set point, through operational amplifier IC 3Oppositely amplify voltage stabilizing didoe DW 2Puncture, by ' or ' gate diode D 4Trigger time-base circuit IC 5, repeat the situation of above-mentioned 150Hz, repeat no more.
In addition, by described operational amplifier IC 2, diode D 3, set resistance W 1, R 13, indication light-emitting diode H 1, current-limiting resistance R 6The indication memory switch circuit of component frequency≤150Hz.Its operation principle is: by described operational amplifier IC 1The harmonic signal of output is through described isolating diode D 2Trigger operational amplifier IC 2In-phase input end, through setting resistance W 1, R 13Adjust operational amplifier IC when surpassing set point 2The output high potential is by positive feedback diode D 3High potential is fed back to operational amplifier IC 2In-phase input end, even harmonic source disappears, IC 2All the time export high potential, memory indicator H 1Do permanent lighting (after treating that administrative staff write down, close primary power source again, send electric indicator light just can extinguish again, i.e. manual reset).In like manner, by operational amplifier IC 4, diode D 6, set resistance W 2, R 14, indication light-emitting diode H 2, current-limiting resistance R 10The indication memory switch circuit of component frequency 〉=200Hz, the same with the above-mentioned course of work, repeat no more.
Described excess voltage protection is by setting resistance W 3, voltage stabilizing didoe DW 3' or ' gate diode D 8Form.Its operation principle is: the voltage of voltage transformer pt secondary side raises with the voltage of system, and the hot end current potential of inductance coil L7 increases thereupon, through setting adjustable resistance W 3Adjust, when reaching within the permissible value, voltage stabilizing didoe DW 3Not conducting, DW when voltage surpasses permissible value 3Puncture conducting, through ' or ' gate diode D 8Trigger IC 5Output is an electronegative potential, relay J 3Action disconnects the power capacitor group, when treating that voltage returns to normal value, powers to the power capacitor group again.
Described overtemperature prote circuit is by temperature sensor W 0, temperature sets adjustable resistance W 4' or ' gate diode D 7Form.Its operation principle is: temperature sensor W 0Change with temperature, by adjusting adjustable resistance W 4, when temperature surpassed set point, source current was by described W 0, W 4' or ' gate diode D 7Trigger IC 5Output is an electronegative potential, relay J 3Action, its contact J 3Disconnect, vacuum contactor coil decompression disconnects the power capacitor group.In case of necessity, another group normally opened contact of available relay is connected ventilating fan. put into operation again after waiting to lower the temperature.
The present invention has eliminated the harmonic components in the power circuit substantially, improve the quality of power supply, reduced the energy loss in the circuit, improved the transfer efficiency of electric energy, solve the overheated situation of overvoltage that the power capacitor group causes because of harmonic wave, thereby prevented the problem of capacitor blast.Because this equipment has harmonic frequency indication memory function, it is triple-frequency harmonics or high order harmonic component that administrative staff can sum up harmonic frequency by each mounting points, and can find the harmonic wave scene apace, so that in time solve the electric pollution problem.Structure of the present invention is simple relatively, and it is lower to be convenient to manufacturing and manufacturing cost, helps using and promoting.

Claims (2)

1. high voltage reactive-load compensation complete equipment, described high voltage reactive-load compensation complete equipment comprises power capacitor, described power capacitor comprises the first power capacitor (C-3W 1), the second power capacitor (C-3W 2) and the 3rd power capacitor (C-3W 3);
It is characterized in that: described high voltage reactive-load compensation complete equipment has a filter, and described filter comprises first to the 6th reactor (L 1, L 2, L 3, L 4, L 5, L 6), wherein: the first reactor (L 1) and the second reactor (L 2) the same polarity series connection, the 3rd reactor (L 3) and the 4th reactor (L 4) the same polarity series connection, the 5th reactor (L 5) and the 6th reactor (L 6) the same polarity series connection;
Described filter comprises first to the 3rd resistance (R 1, R 2, R 3);
Described filter comprises first to the 3rd high frequency capacitance (C 1, C 2, C 3);
The described first resistance (R 1) and the first reactor (L 1) after the parallel connection again with the described first high frequency capacitance (C 1) an end connect;
The described second resistance (R 2) and the 3rd reactor (L 3) after the parallel connection again with the described second high frequency capacitance (C 2) an end connect;
Described the 3rd resistance (R 3) and the 5th reactor (L 5) after the parallel connection again with described the 3rd high frequency capacitance (C 3) an end connect;
The described first reactor (L 1) and the second reactor (L 2) the back contact one (ZJ by vacuum contactor of same polarity series connection 1) and the first power capacitor (C-3W 1) an end connect;
Described the 3rd reactor (L 3) and the 4th reactor (L 4) the back contact (ZJ by vacuum contactor of same polarity series connection 2) and the second power capacitor (C-3W 2) an end connect;
Described the 5th reactor (L 5) and the 6th reactor (L 6) the back contact three (ZJ by vacuum contactor of same polarity series connection 3) and the 3rd power capacitor (C-3W 3) an end connect;
The described first high frequency capacitance (C 1) the other end, the described second high frequency capacitance (C 2) the other end, described the 3rd high frequency capacitance (C 3) the other end, the described first power capacitor (C-3W 1) the other end, the described second power capacitor (C-3W 2) the other end and described the 3rd power capacitor (C-3W 3) the other end all link together;
The described first resistance (R 1) and the first reactor (L 1) common port of upside after the parallel connection connects the A phase of power line;
The described second resistance (R 2) and the 3rd reactor (L 3) common port of upside after the parallel connection connects the B phase of power line;
Described the 3rd resistance (R 3) and the 5th reactor (L 5) common port of upside after the parallel connection connects the C phase of power line;
Described high voltage reactive-load compensation complete equipment comprises voltage transformer (PT), and the primary side of described voltage transformer (PT) is connected between the two-phase of power line, vacuum contactor (ZJ) and relay (J 3) normally closed interlock series connection after be connected to the secondary side of described voltage transformer (PT), the 4th resistance (R 4), the 7th inductance (L 7) and the 5th resistance (R 5) bleeder circuit formed of series connection back is connected to the secondary side of described voltage transformer (PT), described the 7th inductance (L 7) and the 5th resistance (R 5) common end grounding;
Described high voltage reactive-load compensation complete equipment has one to comprise the first operational amplifier (IC 1) the harmonic wave detecting unit of frequency≤150Hz, have one to comprise the 3rd operational amplifier (IC 3) the high order harmonic component detecting unit of frequency 〉=200Hz, have one to comprise the second operational amplifier (IC 2) the harmonic frequency indication mnemon of frequency≤150Hz, have one to comprise four-operational amplifier (IC 4) the harmonic frequency indication mnemon of frequency 〉=200Hz, an overvoltage crowbar is arranged, an overtemperature prote circuit is arranged, have one to comprise time-base circuit (IC 5), relay (J 3) the protection switch circuit;
In the harmonic wave detecting unit of described frequency≤150Hz: have one by the 8th inductance (L 8), the 4th electric capacity (C 4) and the 9th inductance (L 9) the logical oscillating circuit of band of frequency≤150Hz of forming, described the 8th inductance (L 8) an end and the 4th resistance (R 4) and the 7th inductance (L 7) common port connect described the 8th inductance (L 8) the other end and the 4th electric capacity (C 4) an end connect described the 4th electric capacity (C 4) the other end respectively with the 7th resistance (R 7) an end, the first operational amplifier (IC 1) '-' end and the 9th inductance (L 9) an end connect described the 9th inductance (L 9) the other end be connected with ground; The 8th resistance (R 8) an end and the described first operational amplifier (IC 1) '+' end connect the 8th resistance (R 8) other end ground connection; Described the 7th resistance (R 7) the other end respectively with the first voltage stabilizing didoe (DW 1) negative pole, the first operational amplifier (IC 1) output connect the described first voltage stabilizing didoe (DW 1) positive pole respectively with the first diode (D 1) the positive pole and the second diode (D 2) positive pole connect the described first diode (D 1) negative pole connect time-base circuit (IC 5) input;
In the harmonic frequency indication mnemon of described frequency≤150Hz: described harmonic frequency indication mnemon comprises the second operational amplifier (IC 2), the 3rd diode (D 3), first set resistance (W 1), second set resistance (R 13), the first light-emitting diode (H 1) and the first current-limiting resistance (R 6); Wherein: the described second operational amplifier (IC 2) output connect described the 3rd diode (D 3) positive pole, described the 3rd diode (D 3) negative pole connect the described second diode (D respectively 2) negative pole and the described second operational amplifier (IC 2) '+' end, described first sets resistance (W 1) an end connect power supply+12V, described first sets resistance (W 1) the other end connect the described second operational amplifier (IC respectively 2) '-' end and the described second setting resistance (R 13) an end, described second sets resistance (R 13) the other end connect the described second operational amplifier (IC respectively 2) output and the described first light-emitting diode (H 1) positive pole, the described first light-emitting diode (H 1) negative pole by the described first current-limiting resistance (R 6) ground connection;
In the high order harmonic component detecting unit of described frequency 〉=200Hz: described high order harmonic component detecting unit comprises by the tenth high-frequency inductor coil (L 10) and the 5th electric capacity (C 5) high order harmonic component absorption detecting loop, the 3rd operational amplifier (IC of frequency 〉=200Hz of forming 3), the 9th resistance (R 9), the 11 resistance (R 11), the second voltage stabilizing didoe (DW 2), the 4th diode (D 4) and the 5th diode (D 5); Described the 5th electric capacity (C 5) an end and described the 4th resistance (R 4) and the 7th inductance (L 7) common port connect described the 5th electric capacity (C 5) the other end respectively with described the 9th resistance (R 9) an end, the 3rd operational amplifier (IC 3) '-' end and the tenth high-frequency inductor coil (L 10) an end connect described the tenth high-frequency inductor coil (L 10) other end ground connection, described the 11 resistance (R 11) an end ground connection, described the 11 resistance (R 11) the other end connect described the 3rd operational amplifier (IC 3) '+' end, described the 3rd operational amplifier (IC 3) output connect described the 9th resistance (R respectively 9) the other end and the described second voltage stabilizing didoe (DW 2) negative pole, the described second voltage stabilizing didoe (DW 2) positive pole connect the 4th diode (D respectively 4) and the 5th diode (D 5) positive pole, described the 4th diode (D 4) negative pole connect time-base circuit (IC 5) input;
In the harmonic frequency indication mnemon of described frequency 〉=200Hz: described harmonic frequency indication mnemon comprises four-operational amplifier (IC 4), the 6th diode (D 6), the 3rd set resistance (W 2), the 4th set resistance (R 14), the second light-emitting diode (H 2) and the second current-limiting resistance (R 10); Wherein: described four-operational amplifier (IC 4) output connect described the 6th diode (D 6) positive pole, described the 6th diode (D 6) negative pole connect described the 5th diode (D respectively 5) negative pole and described the 4th computing amplify (IC 4) '+' end, the described the 3rd sets resistance (W 2) an end connect power supply+12V, the described the 3rd sets resistance (W 2) the other end connect described four-operational amplifier (IC respectively 4) '-' end and described the 4th setting resistance (R 14) an end, the described the 4th sets resistance (R 14) the other end connect described four-operational amplifier (IC respectively 4) output and the described second light-emitting diode (H 2) positive pole, the described second light-emitting diode (H 2) negative pole by the described second current-limiting resistance (R 10) ground connection;
Described overvoltage crowbar comprises that the 5th sets resistance (W 3), the 3rd voltage stabilizing didoe (DW 3) and the 8th diode (D 8), the described the 5th sets resistance (W 3) an end and described the 4th resistance (R 4) and the 7th inductance (L 7) common port connect, the described the 5th sets resistance (W 3) the other end and described the 3rd voltage stabilizing didoe (DW 3) negative terminal connect described the 3rd voltage stabilizing didoe (DW 3) anode connect described the 8th diode (D 8) positive pole, described the 8th diode (D 8) negative pole connect time-base circuit (IC 5) input;
Described overtemperature prote circuit comprises temperature sensor (W 0), temperature sets adjustable resistance (W 4) and the 7th diode (D 7), described temperature sensor (W 0) an end connect power supply+12V, described temperature sensor (W 0) the other end and described temperature set adjustable resistance (W 4) an end connect, described temperature is set adjustable resistance (W 4) the other end connect the 7th diode (D 7) positive pole, described the 7th diode (D 7) negative pole connect time-base circuit (IC 5) input;
Described protection switch circuit comprises by electrochemical capacitor (C 6) and the 12 resistance (R 12) delay circuit, the time-base circuit (IC that form 5), relay (J 3) and the 7th electric capacity (C 7), described electrochemical capacitor (C 6) and the 12 resistance (R 12) back its electrochemical capacitor (C in parallel 6) negativing ending grounding, its electrochemical capacitor (C 6) anode connect time-base circuit (IC 5) input, described the 7th electric capacity (C 7) an end ground connection, described the 7th electric capacity (C 7) the other end connect described time-base circuit (IC 5) an end, described relay (J 3) be connected across described time-base circuit (IC 5) two ends, described relay (J 3) an end be connected+the 12V power supply on.
2. high voltage reactive-load compensation complete equipment according to claim 1 is characterized in that: described first to the 3rd resistance (R 1, R 2, R 3) be noninductive resistance.
CNB2005101033465A 2005-09-20 2005-09-20 High voltage reactive-load compensation complete equipment Expired - Fee Related CN100384046C (en)

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CN102723715B (en) * 2011-12-30 2014-11-05 上海纳杰电气成套有限公司 Super capacitor and capacitance compensation circuit structure capable of eliminating low-order harmonic
CN104449149A (en) * 2014-12-26 2015-03-25 苏州菲斯特电力科技有限公司 High-pressure filter compensation complete unit
CN105602318A (en) * 2015-11-20 2016-05-25 苏州菲斯特电力科技有限公司 Novel high-pressure filter compensation complete device

Citations (3)

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Publication number Priority date Publication date Assignee Title
JPH0869333A (en) * 1994-08-30 1996-03-12 Matsushita Electric Ind Co Ltd Stationary reactive power compensation device
JPH10177423A (en) * 1996-12-17 1998-06-30 Mitsubishi Denki Bill Techno Service Kk Power-factor adjusting system
CN1402408A (en) * 2002-09-11 2003-03-12 来林娟 High performance reactive power compensation circuit

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0869333A (en) * 1994-08-30 1996-03-12 Matsushita Electric Ind Co Ltd Stationary reactive power compensation device
JPH10177423A (en) * 1996-12-17 1998-06-30 Mitsubishi Denki Bill Techno Service Kk Power-factor adjusting system
CN1402408A (en) * 2002-09-11 2003-03-12 来林娟 High performance reactive power compensation circuit

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