CN105445580A - Test method of reactive power compensation device response time - Google Patents
Test method of reactive power compensation device response time Download PDFInfo
- Publication number
- CN105445580A CN105445580A CN201510794376.9A CN201510794376A CN105445580A CN 105445580 A CN105445580 A CN 105445580A CN 201510794376 A CN201510794376 A CN 201510794376A CN 105445580 A CN105445580 A CN 105445580A
- Authority
- CN
- China
- Prior art keywords
- reactive power
- power compensator
- response time
- reactive
- testing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Electrical Variables (AREA)
Abstract
The invention provides a test method of reactive power compensation device response time. A reactive power compensation device is connected to a low voltage side bus of a wind power plant boosting transformer through a power grid voltage generator. The test method comprises the following steps of testing reactive power investment response time of the reactive power compensation device and testing reactive power quit response time of the reactive power compensation device. In the method, the power grid voltage generator generates power grid voltage drop and recovery on a reactive power compensation device machine end so as to trigger reactive power investment and quit of the reactive power compensation device. An operation condition of the reactive power compensation device during testing is consistent with the operation condition during normal operation so that response time obtained through testing is guaranteed to completely cover a whole response process of the device. A test result is consistent with a result during actual operation so that confidence of the test result is high. Good versatility is possessed. The test method is suitable for all kinds of the reactive power compensation devices and is not influenced by a device function and performance. Test result accuracy is high.
Description
Technical field
The present invention relates to a kind of method of testing, be specifically related to the method for testing of a kind of reactive power compensator response time.
Background technology
In the face of increasingly serious Environment and energy problem, as clean regenerative resource, the development and utilization of wind energy receives great attention in the world.In recent years, rapidly, the installation ratio of wind-powered electricity generation is more and more higher, and large-scale wind power concentrates the grid-connected main flow also having become China's Wind Power Development for China's Wind Power Generation Industry development.Keep unit its voltage, frequency and phase stabilization because grid type Wind turbines relies on access point line voltage when it runs, the normal operation of Network Voltage Stability to Wind turbines plays an important role.When electrical network generation disturbance, Wind turbines access point voltage there will be certain fluctuation, easily causes unit to shut down because of voltage out-of-limit.For ensureing voltage stabilization in wind energy turbine set, preventing the generation of shutdown event, requiring that when line voltage reduces, reactive power compensator makes an immediate response at the reactive power compensator of wind energy turbine set configuration certain capacity, injecting idle to electrical network, recover to support line voltage; When line voltage recovers normally, require that reactive power compensator cuts out immediately, prevent idle surplus from causing line voltage too high.As can be seen here, the capability of fast response that in wind energy turbine set, Reactive Power Device drops into and cuts out is significant to guarantee Network Voltage Stability.State Grid Corporation of China's company standard " Q/GDW11064-2013 Reactive Compensation in Wind Farm device technique performance and test specification " proposes requirement to Reactive Compensation in Wind Farm device performance, and proposes concrete requirement to the dynamic response time of reactive power compensator and regulating time.Reactive Compensation in Wind Farm device drops into the Disturbance Detection time t of response time by reactive power compensator in stage
r, system response time t
upform.To the response time that reactive power compensator cuts out, standard does not do concrete regulation.The existing response time method of testing to reactive power compensator, for issue steering order by on-line communication to device, realizes the idle input of certain capacity and cuts out, and tests the response time in two stages in the process.Adopt in the method test process, only measure device directly actuated response time after reception steering order, have ignored in device actual motion and detect set end voltage disturbance and calculate the process times such as judgement, in addition there is certain extra latency with operation in the communication of equipment room, and the response time when dynamic response time of measurement device and actual motion can be caused to there is comparatively big error.Therefore, need a kind ofly to be applicable to scene, can to reflect that the detection method of true measurement carrys out the response time of Obtaining Accurate reactive power compensator, for dispatching of power netwoks department and wind energy turbine set operation management person provide support and reference.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides the method for testing of a kind of reactive power compensator response time, the idle input to reactive power compensator and the idle test exiting two stage response times can be completed in a test process.
In order to realize foregoing invention object, the present invention takes following technical scheme:
The invention provides the method for testing of a kind of reactive power compensator response time, the described response time comprises the idle input corresponding time and idlely exits the response time; Described method of testing comprises the following steps:
Step 1: the idle input response time of test reactive power compensator;
Step 2: test the idle of reactive power compensator exits the response time.
Described reactive power compensator connects the low-pressure side bus of wind energy turbine set step-up transformer by line voltage generating means.
Described line voltage generating means comprises access switch S 1, access switch S 2, by-pass switch K1, current limiting reactor L1, short circuiting switch K2 and short-circuit reactance device L2;
Described by-pass switch K1 is in parallel with current limiting reactor L1, forms current-limiting reactor branch road K1//L1; Described short circuiting switch K2 connects with short-circuit reactance device L2, forms short-circuit reactance branch road K2-L2;
Described current-limiting reactor branch road K1//L1 one end connects the low-pressure side bus of wind energy turbine set step-up transformer by access switch S 1, and the other end connects reactive power compensator by access switch S 2;
Described short-circuit reactance branch road K2-L2 one end is connected between current-limiting reactor branch road K1//L1 and access switch S 2, other end ground connection.
In described step 1, by reducing the idle input response time of line voltage test reactive power compensator.
Described step 1 comprises the following steps:
Step 1-1: utilize line voltage generating means to produce grid voltage sags at reactive power compensator machine end, triggering reactive power compensator responds, thus to reactive power compensator injecting reactive current, gather and the set end voltage recording reactive power compensator and the reactive current injected to reactive power compensator;
Step 1-2: using the starting point of the moment point of grid voltage sags to 90% rated voltage as grid voltage sags, is designated as A point; The stable point that moment point reactive current being increased to 90% desired value is injected as reactive current, is designated as B point; Time interval T1 between A point and B 2 is the idle of reactive power compensator and drops into the response time.
In described step 1, exit the response time by recovering line voltage test the idle of reactive power compensator.
Described step 2 comprises the following steps:
Step 2-1: utilize line voltage generating means to produce grid voltage sags at reactive power compensator machine end, triggering reactive power compensator responds, thus to reactive power compensator injecting reactive current, gather and the set end voltage recording reactive power compensator and the reactive current injected to reactive power compensator;
Step 2-2: the starting point that moment point line voltage being returned to 90% rated voltage is recovered as line voltage, is designated as C point; Moment point reactive current being reduced to 90% desired value, as the idle starting point exited of reactive power compensator, is designated as D point; Time interval T2 between C point and D 2 is the idle of reactive power compensator and exits the response time.
Compared with immediate prior art, technical scheme provided by the invention has following beneficial effect:
(1) the present invention utilizes line voltage generating means to produce grid voltage sags and recovery at reactive power compensator machine end, thus trigger the idle input of reactive power compensator and exit, the service condition of reactive power compensator when testing is consistent with when normally running, thus ensure that the response time of test gained covers the whole process of device response completely, consistent when test result and actual motion, the degree of confidence of test result is high;
(2) the present invention possesses good versatility, and method of testing is applicable to all types of reactive power compensator, and not by apparatus function and performance impact, test result accuracy is high.
Accompanying drawing explanation
Fig. 1 is that in the embodiment of the present invention, reactive power compensator accesses wind energy turbine set schematic diagram by line voltage generating means;
Fig. 2 is by reducing the idle input response time test data oscillogram of line voltage test reactive power compensator in the embodiment of the present invention;
Fig. 3 exits response time test data oscillogram by recovering line voltage test the idle of reactive power compensator in the embodiment of the present invention;
Fig. 4 is reactive power compensator dynamic response time test data oscillogram in the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
The present invention utilizes line voltage generating means to produce coherent line voltage reduction at reactive power compensator machine end and recover, thus trigger the idle input of reactive power compensator and exit, this test condition is consistent with reactive power compensator normal running (operation) conditions, and test result accurately, reliably.Utilizing this method of testing to carry out on-the-spot test, on accessing the impact of electrical network in concerned countries standard specialized range, meeting electric power netting safe running requirement.The line voltage generating means that this method of testing adopts adopts mobile vehicle-mounted container structure to design, and the equal integrated installation of its whole comprising modules is in TEU (Twenty-foot Equivalent Unit), and convenient transportation, can carry out on-the-spot test in any wind energy turbine set, and test dirigibility is high.
The invention provides the method for testing of a kind of reactive power compensator response time, the described response time comprises the idle input corresponding time and idlely exits the response time; Described method of testing comprises the following steps:
Step 1: the idle input response time of test reactive power compensator;
Step 2: test the idle of reactive power compensator exits the response time.
Described reactive power compensator connects the low-pressure side bus of wind energy turbine set step-up transformer by line voltage generating means.
As Fig. 1, described line voltage generating means comprises access switch S 1, access switch S 2, by-pass switch K1, current limiting reactor L1, short circuiting switch K2 and short-circuit reactance device L2;
Described by-pass switch K1 is in parallel with current limiting reactor L1, forms current-limiting reactor branch road K1//L1; Described short circuiting switch K2 connects with short-circuit reactance device L2, forms short-circuit reactance branch road K2-L2;
Described current-limiting reactor branch road K1//L1 one end connects the low-pressure side bus of wind energy turbine set step-up transformer by access switch S 1, and the other end connects reactive power compensator by access switch S 2;
Described short-circuit reactance branch road K2-L2 one end is connected between current-limiting reactor branch road K1//L1 and access switch S 2, other end ground connection.
In described step 1, by reducing the idle input response time of line voltage test reactive power compensator.
Described step 1 comprises the following steps (as Fig. 2):
Step 1-1: utilize line voltage generating means to produce grid voltage sags at reactive power compensator machine end, triggering reactive power compensator responds, thus to reactive power compensator injecting reactive current, gather and the set end voltage recording reactive power compensator and the reactive current injected to reactive power compensator;
Step 1-2: using the starting point of the moment point of grid voltage sags to 90% rated voltage as grid voltage sags, is designated as A point; The stable point that moment point reactive current being increased to 90% desired value is injected as reactive current, is designated as B point; Time interval T1 between A point and B 2 is the idle of reactive power compensator and drops into the response time.
In described step 1, exit the response time by recovering line voltage test the idle of reactive power compensator.
Described step 2 comprises the following steps (as Fig. 3):
Step 2-1: utilize line voltage generating means to produce grid voltage sags at reactive power compensator machine end, triggering reactive power compensator responds, thus to reactive power compensator injecting reactive current, gather and the set end voltage recording reactive power compensator and the reactive current injected to reactive power compensator;
Step 2-2: the starting point that moment point line voltage being returned to 90% rated voltage is recovered as line voltage, is designated as C point; Moment point reactive current being reduced to 90% desired value, as the idle starting point exited of reactive power compensator, is designated as D point; Time interval T2 between C point and D 2 is the idle of reactive power compensator and exits the response time.
Embodiment
On-the-spot test is carried out according to reactive power compensator response time method of testing provided by the invention.Wherein, line voltage generating means output voltage falls depth-set be 80%Un, Un is rated voltage; Test curve as shown in Figure 4.
By this test curve, be increased to the B point of 90% desired value by the moment point A point and reactive current determining grid voltage sags to 90% rated voltage, obtain out the idle input response time T10 of reactive power compensator;
By determining that line voltage returns to the D point that the moment point C point of 90% rated voltage and reactive current are reduced to 90% desired value, obtaining the idle of reactive power compensator and exiting response time T20.
This method of testing can complete the idle input of reactive power compensator and exit the dynamic response time in two stages within a test period, test condition and device actual motion condition completely the same, test result is accurate.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; those of ordinary skill in the field still can modify to the specific embodiment of the present invention with reference to above-described embodiment or equivalent replacement; these do not depart from any amendment of spirit and scope of the invention or equivalent replacement, are all applying within the claims of the present invention awaited the reply.
Claims (7)
1. the method for testing of reactive power compensator response time, is characterized in that: the described response time comprises the idle input corresponding time and idlely exits the response time; Described method of testing comprises the following steps:
Step 1: the idle input response time of test reactive power compensator;
Step 2: test the idle of reactive power compensator exits the response time.
2. the method for testing of reactive power compensator response time according to claim 1, is characterized in that: described reactive power compensator connects the low-pressure side bus of wind energy turbine set step-up transformer by line voltage generating means.
3. the method for testing of reactive power compensator response time according to claim 2, is characterized in that: described line voltage generating means comprises access switch S 1, access switch S 2, by-pass switch K1, current limiting reactor L1, short circuiting switch K2 and short-circuit reactance device L2;
Described by-pass switch K1 is in parallel with current limiting reactor L1, forms current-limiting reactor branch road K1//L1; Described short circuiting switch K2 connects with short-circuit reactance device L2, forms short-circuit reactance branch road K2-L2;
Described current-limiting reactor branch road K1//L1 one end connects the low-pressure side bus of wind energy turbine set step-up transformer by access switch S 1, and the other end connects reactive power compensator by access switch S 2;
Described short-circuit reactance branch road K2-L2 one end is connected between current-limiting reactor branch road K1//L1 and access switch S 2, other end ground connection.
4. the method for testing of reactive power compensator response time according to claim 2, is characterized in that: in described step 1, by reducing the idle input response time of line voltage test reactive power compensator.
5. the method for testing of reactive power compensator response time according to claim 4, is characterized in that: described step 1 comprises the following steps:
Step 1-1: utilize line voltage generating means to produce grid voltage sags at reactive power compensator machine end, triggering reactive power compensator responds, thus to reactive power compensator injecting reactive current, gather and the set end voltage recording reactive power compensator and the reactive current injected to reactive power compensator;
Step 1-2: using the starting point of the moment point of grid voltage sags to 90% rated voltage as grid voltage sags, is designated as A point; The stable point that moment point reactive current being increased to 90% desired value is injected as reactive current, is designated as B point; Time interval T1 between A point and B 2 is the idle of reactive power compensator and drops into the response time.
6. the method for testing of reactive power compensator response time according to claim 2, is characterized in that: in described step 1, exits the response time by recovering line voltage test the idle of reactive power compensator.
7. the method for testing of reactive power compensator response time according to claim 6, is characterized in that: described step 2 comprises the following steps:
Step 2-1: utilize line voltage generating means to produce grid voltage sags at reactive power compensator machine end, triggering reactive power compensator responds, thus to reactive power compensator injecting reactive current, gather and the set end voltage recording reactive power compensator and the reactive current injected to reactive power compensator;
Step 2-2: the starting point that moment point line voltage being returned to 90% rated voltage is recovered as line voltage, is designated as C point; Moment point reactive current being reduced to 90% desired value, as the idle starting point exited of reactive power compensator, is designated as D point; Time interval T2 between C point and D 2 is the idle of reactive power compensator and exits the response time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510794376.9A CN105445580A (en) | 2015-11-18 | 2015-11-18 | Test method of reactive power compensation device response time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510794376.9A CN105445580A (en) | 2015-11-18 | 2015-11-18 | Test method of reactive power compensation device response time |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105445580A true CN105445580A (en) | 2016-03-30 |
Family
ID=55556009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510794376.9A Pending CN105445580A (en) | 2015-11-18 | 2015-11-18 | Test method of reactive power compensation device response time |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105445580A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105759159A (en) * | 2016-05-10 | 2016-07-13 | 国网辽宁省电力有限公司电力科学研究院 | Wind power plant static var generator (SVG) response time test system of with voltage dividing regulating device |
| CN105866592A (en) * | 2016-05-18 | 2016-08-17 | 国网山西省电力公司电力科学研究院 | System and method for acquiring dynamic reactive power compensation response waveforms |
| CN111044893A (en) * | 2019-12-12 | 2020-04-21 | 云南电网有限责任公司临沧供电局 | System and method for measuring load response time of phase change switch |
| CN111769554A (en) * | 2020-07-07 | 2020-10-13 | 山东省产品质量检验研究院 | System and method for testing dynamic response time of reactive compensation device |
| CN112269087A (en) * | 2020-10-26 | 2021-01-26 | 国网河北省电力有限公司电力科学研究院 | High-low voltage ride through capability detection system of reactive power compensation device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003319571A (en) * | 2002-04-19 | 2003-11-07 | Mitsubishi Electric Corp | Electric power system for plant equipment |
| CN102684225A (en) * | 2012-05-25 | 2012-09-19 | 武汉大学 | Controllable electric reactor based low-voltage ride through system and test method thereof |
| CN103698623A (en) * | 2013-11-07 | 2014-04-02 | 国家电网公司 | Method for measuring the response time of dynamic reactive power compensation device under united time scale |
| CN203858343U (en) * | 2014-05-23 | 2014-10-01 | 国家电网公司 | Primary system of integrated high and low voltage ride through test system |
| CN104156889A (en) * | 2014-08-15 | 2014-11-19 | 国家电网公司 | Wind farm performance evaluation system based on WAMS data and evaluation method thereof |
| CN104579165A (en) * | 2015-01-22 | 2015-04-29 | 国家电网公司 | Photovoltaic power station dynamic reactive response performance site testing method |
-
2015
- 2015-11-18 CN CN201510794376.9A patent/CN105445580A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003319571A (en) * | 2002-04-19 | 2003-11-07 | Mitsubishi Electric Corp | Electric power system for plant equipment |
| CN102684225A (en) * | 2012-05-25 | 2012-09-19 | 武汉大学 | Controllable electric reactor based low-voltage ride through system and test method thereof |
| CN103698623A (en) * | 2013-11-07 | 2014-04-02 | 国家电网公司 | Method for measuring the response time of dynamic reactive power compensation device under united time scale |
| CN203858343U (en) * | 2014-05-23 | 2014-10-01 | 国家电网公司 | Primary system of integrated high and low voltage ride through test system |
| CN104156889A (en) * | 2014-08-15 | 2014-11-19 | 国家电网公司 | Wind farm performance evaluation system based on WAMS data and evaluation method thereof |
| CN104579165A (en) * | 2015-01-22 | 2015-04-29 | 国家电网公司 | Photovoltaic power station dynamic reactive response performance site testing method |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105759159A (en) * | 2016-05-10 | 2016-07-13 | 国网辽宁省电力有限公司电力科学研究院 | Wind power plant static var generator (SVG) response time test system of with voltage dividing regulating device |
| CN105759159B (en) * | 2016-05-10 | 2020-05-22 | 国网辽宁省电力有限公司电力科学研究院 | Wind power plant SVG response time testing system adopting partial pressure adjusting device |
| CN105866592A (en) * | 2016-05-18 | 2016-08-17 | 国网山西省电力公司电力科学研究院 | System and method for acquiring dynamic reactive power compensation response waveforms |
| CN105866592B (en) * | 2016-05-18 | 2018-01-02 | 国网山西省电力公司电力科学研究院 | Dynamic passive compensation response wave shape acquisition system and acquisition method |
| CN111044893A (en) * | 2019-12-12 | 2020-04-21 | 云南电网有限责任公司临沧供电局 | System and method for measuring load response time of phase change switch |
| CN111044893B (en) * | 2019-12-12 | 2020-11-13 | 云南电网有限责任公司临沧供电局 | System and method for measuring load response time of phase change switch |
| CN111769554A (en) * | 2020-07-07 | 2020-10-13 | 山东省产品质量检验研究院 | System and method for testing dynamic response time of reactive compensation device |
| CN111769554B (en) * | 2020-07-07 | 2021-09-24 | 山东省产品质量检验研究院 | System and method for testing dynamic response time of reactive compensation device |
| CN112269087A (en) * | 2020-10-26 | 2021-01-26 | 国网河北省电力有限公司电力科学研究院 | High-low voltage ride through capability detection system of reactive power compensation device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3210277B1 (en) | Method for operating a wind power plant in a weak grid environment and a wind power plant | |
| CN102208801B (en) | Operation method for safely applying line protection device to wind power station | |
| CN102799722B (en) | A kind of wind power plant low voltage ride-through capability emulation verification method | |
| CN105445580A (en) | Test method of reactive power compensation device response time | |
| CN105205232A (en) | RTDS (real time digital simulator) based stability simulation testing platform for micro grid system | |
| CN106611965B (en) | Wind power plant coordination control method and system for preventing large-scale wind power from frequently crossing | |
| CN103414196A (en) | Grid-connected inverter grid-connection point voltage dynamic compensation control method | |
| CN103050933B (en) | Based on the large-sized battery energy-accumulating power station interface protection method of one-terminal current Sudden Changing Rate | |
| CN102662121A (en) | System and method for detecting failure of super capacitor module | |
| CN103138259A (en) | Safety and stability analysis method for access of intermittent large-scale wind power to grid | |
| CN104505855A (en) | Online evaluation system for grid-connected characteristic of wind power plant | |
| CN105243230B (en) | A kind of equivalent modeling method of the directly driven wind-powered field of meter and discharging circuit | |
| CN103675524A (en) | Photovoltaic power generation system model parameter identification test method | |
| CN102868178A (en) | Method for improving grid-connected transient stability in wind power plant voltage automatic control system | |
| CN103278692B (en) | Brake circuit of wind power generation converter detection method | |
| CN105591371A (en) | Anti-islanding protection control system and anti-islanding protection control method based on photovoltaic power station power control system | |
| CN104104115A (en) | Multichannel high-accuracy reverse power control system and reverse power protection control method | |
| CN106340967B (en) | Power station low voltage generator intelligent operation device and intelligent operation method | |
| Bing et al. | Power quality measurement and comparison between two wind farms equipped with FSIG+ PMSG and DFIG | |
| CN108206535A (en) | The reactive current control method and apparatus of low voltage cross-over of wind generator set | |
| Miranda et al. | Impact of energy storage on island grid dynamics: A case study of Bonaire | |
| Erlich et al. | Modelling and performance analysis of wind farms: A case study of the Ashegoda wind farm in Ethiopia | |
| Luo et al. | Study on modeling method of renewable energy generation system based on control mode and strategy switching | |
| CN112531777B (en) | Water-light complementary system emergency cutting machine control method based on equal-area rule | |
| CN205594088U (en) | Take into account reactive power compensator dynamic response time test system of communication delay |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160330 |