CN2822028Y - AC step controllable parallel reactor device - Google Patents
AC step controllable parallel reactor device Download PDFInfo
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- CN2822028Y CN2822028Y CN 200520079362 CN200520079362U CN2822028Y CN 2822028 Y CN2822028 Y CN 2822028Y CN 200520079362 CN200520079362 CN 200520079362 CN 200520079362 U CN200520079362 U CN 200520079362U CN 2822028 Y CN2822028 Y CN 2822028Y
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Abstract
The utility model relates to an AC controllable parallel connection reactor device. A body of the controllable reactor is composed of a main reactor of a transformer type structure and a classification reactor, wherein, a primary coil is a main coil and is connected to a network directly, and a secondary coil is a control coil and is connected with a chopper outward and a thyristor control device. A tertiary coil is a compensation coil and is connected with a smoothing compensation device outward, and the transformer type main reactor and a secondary side classification reactor connected in series are arranged in one oil tank together to form the body of the controllable reactor. The step controllable single-phase parallel connection reactor is mainly composed of a high resistance body, the chopper, the thyristor control device and a central controller and has all functions and characteristics of an ordinary reactor. The utility model has the advantages of convenient adjustment, fast response time, no harmonic generation, low noise, low vibration, high safety and lower loss, harmonic is isolated, and influence for an electric network is reduced. The utility model is used for an extra high voltage and an ultra high voltage electric networks and is used for a long-distance power transmission electric network, and superiority is prominent obviously.
Description
Technical field
The utility model relates to the reactor of using on the electric power transmission line, is specially adapted to the controlled single-phase or parallel three phase reactor device of AC step.
Background technology
Along with superhigh pressure and extra-high voltage grid construction and development, for long transmission line, in order to limit power frequency and switching overvoltage, need to dispose high-voltage shunt reactor on the line, but conventional high-voltage shunt reactor is unadjustable, when the circuit transmission power near natural power or when carrying bigger electric power, common high anti-can not the adjusting and withdraw from parallel causes system voltage to reduce, influence the electricity net safety stable level and the quality of power supply, limited the circuit conveying capacity.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, and is easy to use, and dynamic compensation is carried out flexible AC transmission, ensures the step controlled parallel reactor that has of power grid security, stable, high-quality operation.
Another goal of the invention of the present utility model provides a kind of three-phase alternating current step controlled parallel reactor.
First technical scheme that realizes goal of the invention is to solve like this: the controlled parallel single-phase reactor device of a kind of interchange, the controlled parallel single-phase reactor device of AC step is again by the anti-body of height, circuit breaker, thyristor control device and central controller three parts are formed, its outstanding substantive distinguishing features is to comprise once, the transformer type structure principal reactance device of secondary even tertiary coil and the controlled reactor of classification reactor, the primary winding circle of serving as theme wherein, directly receive on the electric power networking, secondary coil is a control coil, external circuit breaker, the thyristor control device, be connected in series with isolating switch; Primary winding directly is connected on the electric power networking, secondary coil is serially connected with two or more classification reactors at least, each classification reactor is parallel with circuit breaker, thyristor units respectively and is connected in series with isolating switch, the classification reactor that above-mentioned transformer type principal reactance device is connected in series with secondary side is contained in the body that constitutes controlled reactor in the fuel tank altogether.
The controlled parallel three phase reactor device of a kind of AC step, comprise transformer type principal reactance device and classification reactor, its outstanding substantive distinguishing features is the primary winding circle of serving as theme, three-phase is coupled to " Y " and connects, directly receive on the networking, the neutral point short circuit is after little reactor ground connection or direct ground connection, the secondary side of every phase has been gone here and there the classification reactor respectively, each classification reactor is parallel with circuit breaker, thyristor units respectively and is connected in series with isolating switch, each closed mutually connection of secondary side, terminal directly ground connection.
Whole device includes a logic control program interior, and its every group of sequence of movement is: during combined floodgate, open thyristor units earlier, back combined floodgate circuit breaker; During disconnection, first cut-off breaker, after close thyristor units, and the electric linkage of three-phase is set, by electronic control, realize the three-phase synchronization action.The control of circuit breaker (D) is also controlled by this device, whole device can be controlled or distant place control on the spot, manually control or control automatically, be provided with command signal and logic control signal in the whole device, when receiving the signal of sending the outside, press semaphore request, close a floodgate or disconnect any circuit breaker and thyristor units, whole device is provided with and receives distant signal terminal interface, friendship, DC control supply terminal block.
No matter the utility model is at single-phase or three-phase compared with prior art, adopts this device that following advantage, 1 are arranged in the electrical network) have all functions and a characteristic of common reactor; 2) easy to adjust, the response time fast (Millisecond); 3) no harmonic wave produces, and noise is low, vibrate low, the security reliability height; 4) with respect to other type controllable parallel reactors, it is less to invest lower, total floor space, and the scene of being convenient to the power station is arranged; 5) more harmonic wave is isolated, reduce influence electrical network.This product also can be made and exchange classification continuous controllable shunt reactor device or exchange full continuous controllable shunt reactor.Control device is provided with logic control program, can control on the spot, also can far control; Can manually control, also can control automatically.The adjusting of arbitrary level capacity all is once directly to put in place, being issued to capacity regulating from instruction finishes, response time all is a Millisecond, every group of TK is two-way admittance, do not establish adjuster, adjustable range and progression: the capacity when this product is unloaded is 0%, adjustable range and progression are set according to system's needs, do not do qualification in principle, general adjustable range is 25-100%, and progression is divided into 4 grades.Promptly 25%, 50%, 75%, 100% or 55-100% divide 4 grades promptly 55%, 70%, 85%, 100%.Be widely used in superhigh pressure and extra-high voltage grid construction and development, especially use on long distance webs, it is more outstanding that its superiority seems.According to factors such as the operating condition of the demand of system's reactive compensation capacity and system, failure conditions, by the central controller acquired signal, directly send to control device and circuit breaker, realize regulating automatically, thereby raising ability to transmit electricity, the maintenance system voltage is stable, carries out flexible AC transmission, the function of ensure power grid security, stablize, high-quality being moved.
Description of drawings
Fig. 1 has the step controlled parallel reactor elementary diagram for single phase alternating current (A.C.);
Fig. 2 is the little reactor elementary diagram of three-phase alternating current;
Fig. 3 is every phase controllable parallel reactors elementary diagram of Fig. 2.
Embodiment
Accompanying drawing is embodiments of the invention.
Be described further below in conjunction with the content of accompanying drawing invention:
With reference to shown in Figure 1, body is made up of transformer type principal reactance device and classification reactor, primary winding A-X directly is connected on the networking, secondary coil a-x is serially connected with classification reactor XK1, XK2, XK3, each classification reactor is parallel with circuit breaker D respectively, thyristor units TK, be connected in series with isolating switch K, i.e. circuit breaker D3 in parallel and thyristor units TK3 between a2 point and x, XK3 forms in parallel with the classification reactor, circuit breaker D2 in parallel and thyristor units TK2 between a1 point and x, with classification reactor XK3, XK2 forms parallel connection, circuit breaker D1 in parallel and thyristor units TK1 between a point and x are with classification reactor XK3, XK2, XK1 forms parallel connection.The switching of classification reactor be by each classification reactor the short circuit or disconnect of circuit breaker D in parallel and thyristor units TK realize.
With reference to shown in Figure 2, the controlled parallel three phase reactor device of AC step, comprise one group of identical in structure classification reactor all in parallel and control device between transformer type principal reactance device, head end a, b, c and terminal x, y, the z at secondary side three-phase major loop, being coupled to " Y " at the primary side three-phase of transformer type principal reactance device connects, neutral point is through little reactor ground connection or direct ground connection, and promptly terminal x, y, z short circuit are after little reactor ground connection or direct ground connection.Secondary side is that single-phase closed connects, and end is ground connection directly.The a that is to say at the three-phase major loop mutually in, circuit breaker D3 in parallel and thyristor units TK3 between a2 point and x, XK3 forms in parallel with classification reactor device, circuit breaker D2 in parallel and thyristor units TK2 between a1 point and x, form in parallel with classification reactor XK3, XK2, circuit breaker D1 in parallel and thyristor units TK1 between a point and x form in parallel with classification reactor XK3, XK2, XK1; The b of three-phase major loop mutually in, circuit breaker D3 in parallel and thyristor units TK3 between b2 point and y, XK3 forms in parallel with the classification reactor, circuit breaker D2 in parallel and thyristor units TK2 between b1 point and y, form in parallel with classification reactor XK3, XK2, circuit breaker D1 in parallel and thyristor units TK1 between b point and y form in parallel with classification reactor XK3, XK2, XK1; The c of three-phase major loop mutually in, circuit breaker D3 in parallel and thyristor units TK3 between c2 point and z, XK3 forms in parallel with the classification reactor, circuit breaker D2 in parallel and thyristor units TK2 between c1 point and z, form in parallel with classification reactor XK3, XK2, circuit breaker D1 in parallel and thyristor units TK1 between c point and z form in parallel with classification reactor XK3, XK2, XK1.
The automatic control process of described product carries out according to the following steps:
Whole matching requirements is provided with logic control program, and every group of sequence of movement is: during combined floodgate, open thyristor units TK earlier, back combined floodgate circuit breaker D; During disconnection, first cut-off breaker D, after close thyristor units TK.And the electric linkage of three-phase is set, the control of circuit breaker D is also controlled by this device.Whole device can be controlled on the spot, also can control in a distant place, can manually control also and can control automatically.That is to say, be provided with command signal and logic control function in the whole device, when receiving the signal of sending the outside, (send on the spot or send) by central control system, according to semaphore request, close a floodgate or cut-off any circuit breaker D and thyristor units TK, with the adjusting requirement of reality system reactor device capacity.Require whole device to be provided with and receive the distant signal terminal interface, be provided with friendship, the DC control supply terminal block.
The AC step controlled parallel reactor device is regulated reactor volume controlled table and exemplified: with adjustable range 25～100% is example:
| D2 TK2 | × | × | ○ | × |
| D3 TK3 | × | ○ | × | × |
Wherein: *---expression disconnects
Zero---the conducting of expression combined floodgate
Annotate: isolating switch K1, K2, K3 are in "on" position always when normal operation
The adjusting of reactor capacity is to regulate the reactor capacity according to factors such as the operating condition of the conditions of demand of system balance capacity and system, failure conditions.The enforcement that the front exemplifies control table can be that manual control also can be automatic control.Automatically control is to be made decisions according to system's needs and sent instruction to thyristor control device and circuit breaker by central controller, and control device is just controlled automatically by the logic control that configures, the automatic adjusting of realization reactor capacity.
When the switching time of circuit breaker D can be satisfied system's service requirement, can cancel the thyristor control device, make like this that whole device is simpler, investment is more saved, more help applying.
The AC step controlled parallel reactor device be a kind ofly have once, the controlled reactor of the transformer type structure of secondary even tertiary coil, the primary winding circle of serving as theme is directly received on the networking; Secondary coil is a control coil, external circuit breaker and thyristor control device; Short-circuit impedance between primary winding and the secondary coil is not less than 100%, and this also is the difference of this device and transformer.Under rated voltage, common transformer is not allow second short circuit, and this device secondary when normal operation is in short-circuit state, carries out short circuit or disconnection by means of external circuit breaker D and thyristor control device TK.The AC step controlled parallel reactor secondary side is serially connected with the classification reactor, is contained in the body that constitutes controlled reactor in the fuel tank altogether with transformer type principal reactance device.A whole set of AC step controlled parallel reactor mainly is made up of three parts: 1) high anti-body; 2) circuit breaker D; 3) thyristor control device TK and isolating switch K.When the switching time of circuit breaker D can be satisfied system's service requirement, can cancel thyristor control device TK.
In sum, electric power network is in actual moving process, the imbalance of three-phase voltage phenomenon often appears, just can with logic control program on the spot control by the utility model device this moment, the adjusting of arbitrary level capacity all is once directly to put in place, being issued to capacity regulating from instruction finishes, be automatic adjusting, change reactive power according to system's needs, the dynamic optimization electric network reactive compensation, and then it is stable with the maintenance system voltage to improve ability to transmit electricity, carries out flexible AC transmission, the function of ensure power grid security, stablize, high-quality being moved.Bind mode: can make the single-phase controllable parallel reactors of AC step.Also can make AC step three-phase controllable parallel reactors, the primary side three-phase is coupled to " Y " and connects, and neutral point is through little reactor ground connection or direct ground connection.Secondary side is that single-phase closed connects, and end is ground connection directly.The adjusting of reactor capacity is to regulate the reactor capacity according to factors such as the operating condition of the conditions of demand of system balance capacity and system, failure conditions.The enforcement that the front exemplifies control table can be that manual control also can be automatic control.Automatically control is to be made decisions according to system's needs and sent instruction to thyristor control device and circuit breaker by central controller, and control device is just controlled automatically by the logic control that configures, the automatic adjusting of realization reactor capacity.Classification reactor quantity is different different according to range of regulation.Isolating switch when normal operation, all is in "on" position.
Claims (2)
1, the controlled parallel single-phase reactor device of a kind of interchange, comprise the principal reactance device, it is characterized in that the controlled parallel single-phase reactor device of AC step is again by the anti-body of height, circuit breaker, thyristor control device three parts are formed, it once, the transformer type structure of secondary even tertiary coil is formed controlled reactor by principal reactance device and classification reactor, the primary winding circle of serving as theme wherein, directly receive on the networking, secondary coil is a control coil, external circuit breaker (D), thyristor control device (TK), isolating switch (K), primary winding (A-X) directly is connected on the networking, secondary coil (a-x) is serially connected with two or more classification reactors (XK1 at least, XK2, XK3 ...), each classification reactor (XK) is parallel with circuit breaker (D1 respectively, D2, D3 ...) and thyristor units (TK1, TK2, TK3 ...), two ends are connected in series with isolating switch (K1), the classification reactor that above-mentioned transformer type principal reactance device is connected in series with secondary side is contained in the body that constitutes controlled reactor in the fuel tank altogether.
2, the controlled parallel three phase reactor device of a kind of AC step, comprise transformer type principal reactance device and classification reactor, it is characterized in that primary winding (A-X, B-Y, C-Z) circle of serving as theme, three-phase is coupled to " Y " and connects, directly receive on the networking, neutral point (X, Y, Z) short circuit is after little reactor ground connection or direct ground connection, the secondary side of every phase has been gone here and there classification reactor (XK1 respectively, XK2, XK3 ...), each classification reactor is parallel with circuit breaker (D1 respectively, D2, D3 ...), thyristor units (TK1, TK2, TK3 ...), be connected in series with isolating switch (K1), each closed mutually connection of secondary side, terminal directly ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520079362 CN2822028Y (en) | 2005-09-09 | 2005-09-09 | AC step controllable parallel reactor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520079362 CN2822028Y (en) | 2005-09-09 | 2005-09-09 | AC step controllable parallel reactor device |
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| CN2822028Y true CN2822028Y (en) | 2006-09-27 |
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| CN 200520079362 Expired - Lifetime CN2822028Y (en) | 2005-09-09 | 2005-09-09 | AC step controllable parallel reactor device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074959A (en) * | 2010-12-30 | 2011-05-25 | 中电普瑞科技有限公司 | Thyristor valve-controlled controlled shunt reactor device |
| CN102237687A (en) * | 2011-03-31 | 2011-11-09 | 中电普瑞科技有限公司 | Multi-column independent control compound switch type stepped controlled shunt reactor device |
| CN102263413A (en) * | 2011-03-31 | 2011-11-30 | 中电普瑞科技有限公司 | Multi-column-body independently-controlled thyristor valve control type controllable parallel reactor device |
-
2005
- 2005-09-09 CN CN 200520079362 patent/CN2822028Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074959A (en) * | 2010-12-30 | 2011-05-25 | 中电普瑞科技有限公司 | Thyristor valve-controlled controlled shunt reactor device |
| CN102074959B (en) * | 2010-12-30 | 2015-03-25 | 中电普瑞科技有限公司 | Thyristor valve-controlled controlled shunt reactor device |
| CN102237687A (en) * | 2011-03-31 | 2011-11-09 | 中电普瑞科技有限公司 | Multi-column independent control compound switch type stepped controlled shunt reactor device |
| CN102263413A (en) * | 2011-03-31 | 2011-11-30 | 中电普瑞科技有限公司 | Multi-column-body independently-controlled thyristor valve control type controllable parallel reactor device |
| CN102263413B (en) * | 2011-03-31 | 2016-04-20 | 中电普瑞科技有限公司 | Multicolumn body independently controls thyristor valve-controlled controlled shunt reactor device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150909 Granted publication date: 20060927 |
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| EXPY | Termination of patent right or utility model |